This document provides a high-level summary of the functions of the Huawei HLR9820 product. It describes the basic functions such as teleservices including speech services. It also describes optional functions such as short message services, supplementary services, mobility services, and others. The document is intended to help users understand the key capabilities of the HLR9820 product.
This document provides a high-level summary of the functions of the Huawei HLR9820 product. It describes the basic functions such as teleservices including speech services. It also describes optional functions such as short message services, supplementary services, mobility services, and others. The document is intended to help users understand the key capabilities of the HLR9820 product.
This document provides a high-level summary of the functions of the Huawei HLR9820 product. It describes the basic functions such as teleservices including speech services. It also describes optional functions such as short message services, supplementary services, mobility services, and others. The document is intended to help users understand the key capabilities of the HLR9820 product.
This document provides a high-level summary of the functions of the Huawei HLR9820 product. It describes the basic functions such as teleservices including speech services. It also describes optional functions such as short message services, supplementary services, mobility services, and others. The document is intended to help users understand the key capabilities of the HLR9820 product.
The document provides an overview of the functions and features of the Huawei HLR9820 system.
The document describes various functions and features of the Huawei HLR9820 system, including basic, optional, supplementary, and mobility services.
Functions described include basic function description, supplementary services, ODB service, mobility services, call handling services, subscriber data management, protocol interfaces, operation and maintenance, reliability, authentication, CS data services, GPRS services, CAMEL services, location services and more.
Function description of HLR9820 V900R003C04
Huawei HLR9820 Function Description
(GSM&UMTS)
HLR9820 V900R003C04
Issue 1.00 Date 2008Q2 INTERNAL
Function description of HLR9820 V900R003C04
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel free to contact our local office or company headquarters.
1 Huawei HLR9820V900R003C03 Function Description (GSM & UMTS) This document briefly describes the functions of the HLR9820 product, and is intended to help the user understand the functions of the product. 1.1 Basic Function Description WHFD-020000 Function name: Teleservices Function description: The HLR provides standard Teleservices, including Speech Service (WHFD- 020100)
WHFD-020100 Function name: Speech Service Function description: The speech service is the basic service of the telecommunication network, including Telephony (TS11) (WHFD-020101) and Emergency Call (TS12) (WHFD- 020102).
Function description of HLR9820 V900R003C04
WHFD-020101 Function name: Telephony (TS11) Specifications: 3GPP29002, 3GPP22003 Overview: Through the service, the carrier can establish call connections between the PSTN network subscribers, ISDN network subscribers, and PLMN network subscribers. Function description: The HLR supports subscribing to the service and modifying data of the service. When a subscriber subscribes to the service and updates his/her location, the HLR sends the data of the service to the VLR. When a subscriber withdraws the service, the HLR initiates the subscriber data deletion flow to the VLR. Benefits:
Benefits for the carrier: The function allows the carrier to add subscribers to different basic service groups, and increase network traffics volume, thus increasing the revenue.
Benefits for the subscriber: The function allows the subscriber to enjoy basic voice service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-020102 Function name: Emergency Call (TS12) Specifications: 3GPP29002, 3GPP22003 Overview: The function allows a subscriber to make an emergency call. For example, dial 112 and 119. When a subscriber is not registered or calls into/from the subscriber are barred, the subscriber can make an emergency call. Function description: By default, the HLR provides the emergency call service to the subscriber. When the location of a subscriber is updated, the HLR sends the service data to the VLR. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The function allows the carrier to provide emergency call service for the subscribers.
Benefits for the subscriber: The function allows the subscriber to make an emergency call for helps. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
1.2 Optional function description WHFD-020200 Function name: Short Message Service (SMS) Function description: In every short message, the length of the cell is very short. According to the technical specifications of the ETSI GSM (such as ETSI GSM 03.40 and ETSI GSM 03.41), a point to point (P2P) short message can be as long as 140 bytes, which is equivalent to 160 ASCII characters or 70 Chinese characters; a broadcast short message can be 15 pages long, with every paging containing 82 bytes (which is equivalent to 92 ASCII characters or 41 Chinese characters).The P2P SMS service allows subscribers to send or receive short messages at any time. The broadcast SMS service allows subscribers to receive public information regularly and selectively. The short message service includes:
P2P SMS service, which includes Short Message MT/PP (TS21) (WHFD- 020201) and Short Message MO/PP (TS22) (WHFD-020202)
The P2MP SMS service. It mainly refers to the cell broadcast SMS service.
WHFD-020201 Function name: Short Message MT/PP (TS21) Specifications: 3GPP29002, 3GPP23039, 3GPP23040, 3GPP23041, 3GPP24011, 3GPP24012 Overview:
Function description of HLR9820 V900R003C04
The Short Message MT/PP service refers to the service that enables the short message center (SMC) to send short messages to the MS. Function description: The HLR enables a subscriber to receive short messages. When the subscriber serves as the callee, that is, another subscriber intends to send a short message to the subscriber, the SMC sends a message to the HLR, requesting it to feed back the MSC number or SGSN number of the callee. Upon receiving the request, the HLR returns a message based on the subscription information and current status of the subscriber. Function description: To improve the success rate in receiving short message, the HLR allows you to configure the short message transmission route for subscribers adopting the network access mode of MSC or SGSN (the subscribers can access the network in the CS and PS domains).In the case of SGSN, the HLR carries the SGSN address and MSC address in the response message to the short message routing request. In the case of MSC, the HLR only carries the MSC address in the response message. Benefits:
Benefits for the carrier: The service can boost the traffics volume and increase the average revenue per user (ARPU).
Benefits for the subscriber: The service diversifies the communication modes. When voice conversation is inconvenient, the subscriber can keep contact with others through short messages. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocols. The SMC equipment is deployed in the network.
WHFD-020202 Function name: Short Message MO/PP (TS22) Specifications: 3GPP29002, 3GPP23039, 3GPP23040, 3GPP23041, 3GPP24011, 3GPP24012 Overview: The Short Message MO/PP service refers to the service that enables the MS to send short message to the SMC. Function description: The HLR enables the MS to send short messages. When the location of a subscriber is updated, the HLR sends the related subscription data to the VLR. When the subscriber sends short messages, the VLR provides Short Message
Function description of HLR9820 V900R003C04
MO/PP service for the subscriber according to the subscription information of the subscriber. Benefits:
Benefits for the carrier: The service can increase the traffics volume and increase the ARPU.
Benefits for the subscriber: The service diversifies the communication modes. When voice conversation is inconvenient, the subscriber can keep contact with others through short messages. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. The SMC equipment is deployed in the network.
1.2.2 Supplementary Services WHFD-030000 Function name: Supplementary Services Function description: The HLR provides standard supplementary services, including:
Call Forwarding (CF) Services(WHFD-030100)
Call Barring Services(WHFD-030200)
Number Identification Services(WHFD-030300) The supplementary services of the optional function include:
Call Waiting/Call Hold (CW/CH)
Multi Party (MPTY)
Unstructured Supplementary Service Data (USSD)
Closed User Group (CUG)
WHFD-030100 Function name: Call Forwarding (CF) Services Function description: The CF services include:
Function description of HLR9820 V900R003C04
Call Forwarding Unconditional (CFU) (WHFD-030101)
Call Forwarding on Mobile Subscriber Busy (CFB) (WHFD-030102)
Call Forwarding on no Reply (CFNRy) (WHFD-030103)
Call Forwarding on Mobile Subscriber not Reachable (CFNRc) (WHFD- 030104)
WHFD-030101 Function name: Call Forwarding Unconditional (CFU) Specifications: 3GPP29002, 3GPP22082, 3GPP23082, 3GPP24082 Overview: When a mobile subscriber serves as the callee, all calls are forwarded to a third party, regardless of status of the subscriber's MS. The third party can be either a PLMN/PSTN/ISDN subscriber or a service console (such as voice mailbox). Function description: The HLR supports subscribing/withdrawing and activating/deactivating the service. Meanwhile, the HLR stores the Ftn numbers registered by the subscriber, and carries the Ftn numbers in the response message to the routing message from the GMSC. By contacting the business hall, the subscriber can activate the service. Benefits:
Benefits for the carrier: The carrier can forward calls more flexibly and increase call completion rate, thus boosting the revenue.
Benefits for the subscriber: When the subscriber cannot use his/her MS, or does not want to use the MS, the subscriber can forward an incoming call to another MS without affecting the conversation. The service provides more means for the subscriber to enjoy the telecommunication service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-030102 Function name: Call Forwarding on Mobile Subscriber Busy (CFB) Specifications:
Function description of HLR9820 V900R003C04
3GPP29002, 3GPP22082, 3GPP23082, 3GPP24082 Overview: According to causes of call forwarding, the CFB service can be further divided into call forwarding on busy due to network cause and call forwarding on busy due to subscriber's cause. When a mobile subscriber serves as the callee, if the subscriber is in a conversation (the line is busy due to network cause) or the subscriber rejects the incoming call (the line is busy due to the subscriber's cause), the call is forwarded to a third party. The third party can be either a PLMN/PSTN/ISDN subscriber or a service console (such as voice mailbox). Function description: The HLR supports subscribing/withdrawing and activating/deactivating the service. The HLR stores the Ftn numbers. When the location of a subscriber changes, the HLR sends the Ftn numbers to the VLR. If the subscriber receives a call when the subscriber's line is busy, the VLR of the callee, knowing that the subscriber has subscribed to the call forwarding service, initiates a route setup request to the corresponding HLR according to the Ftn number, and establishes a connection to the MSC of the third party subscriber. The subscriber can activate the service through his/her mobile phone or in the business hall of the carrier. Benefits:
Benefits for the carrier: The carrier can forward calls more flexibly and increase call completion rate, thus boosting the revenue.
Benefits for the subscriber: When the subscriber cannot use his/her MS, or does not want to use the MS, the subscriber can forward an incoming call to another MS without affecting the conversation. The service provides more means for the subscriber to enjoy the telecommunication service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-030103 Function name: Call Forwarding on no Reply (CFNRy) Specifications: 3GPP29002, 3GPP22082, 3GPP23082, 3GPP24082 Overview: When an incoming call to a mobile subscriber keeps unanswered for a long time or the no-replay timer times out, the call is forwarded to a third party subscriber. The third party can be either a PLMN/PSTN/ISDN subscriber or a service console (such as voice mailbox).
Function description of HLR9820 V900R003C04
Function description: The HLR supports subscribing/withdrawing and activating/deactivating the service. The HLR stores the Ftn numbers. When the location of a subscriber changes, the HLR sends the Ftn numbers to the VLR. Meanwhile, the HLR also sends a message with no-reply time length to the VLR., When the subscriber's line is busy, if a call to the subscriber remains unanswered for a period exceeding the specified time length, the VLR of the callee initiates a route setup request to the corresponding HLR according to the Ftn number, and establishes a connection to the MSC of the third party subscriber. The subscriber can activate the service through his/her mobile phone or in the business hall of the carrier. Benefits:
Benefits for the carrier: The carrier can forward calls more flexibly and increase call completion rate, thus boosting the revenue.
Benefits for the subscriber: When the subscriber cannot use his/her MS, or does not want to use the MS, the subscriber can forward an incoming call to another MS without affecting the conversation. The service provides more means for the subscriber to enjoy the telecommunication service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-030104 Function name: Call Forwarding on Mobile Subscriber not Reachable (CFNRc) Specifications: 3GPP29002, 3GPP22082, 3GPP23082, 3GPP24082 Overview: When the wireless connection between the network and a mobile subscriber is interrupted, if there is an incoming call, the call is forwarded to a third party subscriber. The third party can be either a PLMN/PSTN/ISDN subscriber or a service console (such as voice mailbox). Function description: The HLR supports subscribing/withdrawing and activating/deactivating the service. To use the service, the subscriber must register the service in the business hall of the carrier, and then activate the service. The subscriber can activate the service through his/her mobile phone or in the business hall. When a subscriber is unreachable, it involves two occasions: 1. The HLR has stored the information on the unreachable subscriber. For example, when a subscriber remains offline for a long time, the HLR
Function description of HLR9820 V900R003C04
reconfigures the flag bit of the subscriber to indicate that the subscriber is unreachable. 2. The HLR does not know the reason why the subscriber is unreachable. For example, the subscriber's MS is turned off or cannot receive any signals.
If the HLR knows the reason why the subscriber is unreachable, the MSC of the caller carries the Ftn number in the response message to the HLR's routing request message. In this case, the MSC of the caller initiates a route request to the third party subscriber according to the Ftn number in the returned message. If the HLR does not know the reason why the subscriber is unreachable, it does not send the Ftn number to the MSC of the caller. The MSC of the caller firs establishes a call connection to the MSC of the callee, and the MSC of the callee then initiates a call route request to the HLR of the third party subscriber. Benefits:
Benefits for the carrier: The carrier can forward calls more flexibly and increase call completion rate, thus boosting the revenue.
Benefits for the subscriber: If the MS of a subscriber is turned off or the quality of the signals received by the MS is very poor, the subscriber can forward an incoming call to another MS without affecting the conversation. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030105 Function name: Forwarded-to Number Analysis and Regulation Specifications: None. Overview: This function allows you to configure the forwarding service data in the HLR. When a subscriber registers the forwarding service, Ftn numbers of correct format can be generated and stored in the databases of the HLR. Function description: The request for registering the call forwarding service received by the HLR contains Ftn numbers. These Ftn numbers adopt the following formats:
Unknown format (or domestic format): 81 + Ftn number inputted by the subscriber:
Function description of HLR9820 V900R003C04
81 + 0 + area code + fixed telephone number 81 + PLMN number
International format 91 + country code (CC)+ area code (AC)+ fixed telephone number 91 + PLMN number Currently, the Ftn number registered in the MS adopts the unknown format. The HLR regulates the received Ftn numbers. The Ftn numbers saved in the database and those sent to the MS adopt the international format. You can only judge the attribute of a regulated Ftn number, for example, check whether the Ftn is in the homeland or the Ftn is in the local network. To regulate the Ftn numbers, you need to configure the related data in the HLR. Enhanced function description: To enable the HLR to regulate the Ftn numbers, you need to configure the following table data. 1. INTRA_OFFICE table The table contains only one record, which describes the country code of the area where the HLR is located and HLR number. When it is necessary to know the country code of an Ftn number but the Ftn does not carry a country code, the HLR uses the country code in the table as the country code of the regulated Ftn number. 2. IMSICODE_DATA table The table contains multiple records, with each record describing an IMSI prefix and its corresponding area code. For example, the area code corresponding to the IMSI prefix of 46000755 is 755. When it is necessary to know the area code of an Ftn number but the Ftn does not carry an area code, the HLR uses the area code in the table as the area code of the regulated Ftn number. 3. CALLEDNUM_ANALYSIS table The table contains multiple records. Every record has four fields: prefix of the Ftn number, attribute of the Ftn number, number of information station or not, and number of entertainment station or not. There are four options for the Ftn number attribute: local number, domestic toll call number, international toll call number, and PLMN number. For example, 139 indicates PLMN number; 0 indicates domestic toll call number; 00 indicates international toll call number; 19 indicates local number. In the Ftn regulating process, the HLR compares the prefix of an Ftn number with records of the CALLEDNUM_ANALYSIS table to find a matched record, and then regulates the Ftn number according to the record. 4. DOMESTICAREA_DATA table The table contains multiple records, with each record describing an area and its corresponding area code, for example, the area code of Shenzhen city is 755. 5. ISDNCODE_DATA table The table contains multiple records, with each record describing an MSISDN prefix and its corresponding area code. When analyzing a PLMN Ftn number, the
Function description of HLR9820 V900R003C04
HLR queries the table to check whether the Ftn number exceeds area limitation imposed on the call forwarding. 6. INTAREA_DATA table The table contains multiple records, with each record describing a country and its corresponding country code. For example, the country code of China is 86. When analyzing an Ftn number of international format, the HLR queries the table to verify whether the Ftn number is a domestic number. 7. FORBIDFWD_NUM table The table contains multiple records, with each record describing a number that is prohibited to be forwarded, for example, 110.When the HLR judges that a number is a local number, it can query the table to verify whether the number is allowed to serve as an Ftn number. Benefits:
Benefits for the carrier: The function allows the carrier to configure the call forwarding service flexibly.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-030200 Function name: Call Barring Services Function description: The call barring services can be divided into two categories: incoming call barring service and outgoing call barring service. The HLR provides the following standard call barring services:
Barring of All Outgoing Calls (BAOC) (WHFD-030201)
Barring of Outgoing International Calls (BOIC) (WHFD-030202)
Barring of Outgoing International Calls Except Those Directed to the Home PLMN Country (BOIC-exHC) (WHFD-030203)
Barring of All Incoming Calls (BAIC) (WHFD-030204)
Barring of Incoming Calls when Roaming Outside the Home PLMN Country (BIC-ROAM) (WHFD-030205)
Function description of HLR9820 V900R003C04
WHFD-030201 Function name: Barring of All Outgoing Calls (BAOC) Specifications: 3GPP29002, 3GPP22088, 3GPP23088, 3GPP24088 Overview: When the service is activated, the subscriber cannot make any call except emergency calls. Function description: To bar all outgoing calls from a subscriber, the HLR stores the service code and status information of the BAOC service, and sends them to the VLR of the subscriber. The MSC implements the barring of outgoing calls from the subscriber. The HLR supports subscribing/withdrawing and activating/deactivating the service in the MS. The subscriber can modify and query the status of the service. Meanwhile, the HLR can specify whether the right of configuring the BAOC service is under the control of the subscriber or the carrier. If the right is under the control of the subscriber, the subscriber can activate/deactivate the service through his/her MS, as long as the HLR provides the service. Before activating/deactivating the service, the subscriber needs to input a password. The password can be modified in either the MS or the HLR. Benefits:
Benefits for the carrier: The service expands the business scope of the carrier and increases service benefits.
Benefits for the subscriber: The service allows the subscriber to bar outgoing international calls flexibly. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030202 Function name: Barring of Outgoing International Calls (BOIC) Specifications: 3GPP29002, 3GPP22088, 3GPP23088, 3GPP24088 Overview:
Function description of HLR9820 V900R003C04
When the service is activated, if the subscriber roams in the home PLMN country, the subscriber is prohibited to make an international call. Function description: To bar all outgoing international calls from a subscriber, the HLR stores the code and status information of the BOIC service, and sends them to the VLR of the subscriber. The MSC implements the barring of outgoing international calls for the subscriber. The HLR supports subscribing/withdrawing and activating/deactivating the service. The subscriber can modify and query the status of the service in the MS. Meanwhile, the HLR can specify whether the right of configuring the BOIC service is under the control of the subscriber or the carrier. If the right is under the control of the subscriber, the subscriber can activate/deactivate the service through the MS, as long as the HLR provides the service. Before activating/deactivating the service, the subscriber needs to input a password. The password can be modified in either the MS or the HLR. Benefits:
Benefits for the carrier: The service expands the business scope of the carrier and increases service benefits.
Benefits for the subscriber: The service allows the subscriber to bar various calls flexibly. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030203 Function name: Barring of Outgoing International Calls Except Those Directed to the Home PLMN Country (BOIC-exHC) Specifications: 3GPP29002, 3GPP22088, 3GPP23088, 3GPP24088 Overview: When the service is activated, the subscriber cannot make any international call except calls to the home PLMN country. Function description: To bar all outgoing international calls (except calls to the home PLMN country) from a subscriber, the HLR stores the code and status information of the BOIC- exHC service, and sends them to the VLR of the subscriber. The service is based on basic services, including teleservice and bearer service. The MSC implements the barring of outgoing international calls from the subscriber. The HLR supports
Function description of HLR9820 V900R003C04
subscribing/withdrawing and activating/deactivating the service. The subscriber can modify and query the status of the service. Meanwhile, the HLR can specify whether the right of configuring the BOIC-exHC service is under the control of the subscriber or the carrier. If the right is under the control of the subscriber, the subscriber can activate/deactivate the service through his/her MS, as long as the HLR provides the service. Before activating/deactivating the service, the subscriber needs to input a password. The password can be modified in either the MS or the HLR. Benefits:
Benefits for the carrier: The service expands the business scope of the carrier and increases service benefits.
Benefits for the subscriber: The service allows the subscriber to bar various calls flexibly. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-030204 Function name: Barring of All Incoming Calls (BAIC) Specifications: 3GPP29002, 3GPP22088, 3GPP23088, 3GPP24088 Overview: When the service is activated, the subscriber cannot receive any incoming call. Function description: The HLR activates the basic service groups and stores the code of the BAIC service, data of the basic service groups, and the status information. When the subscriber serves as the callee and receives a routing request from the caller, the HLR judges whether the subscriber has activated the BAIC service. If yes, the HLR sends an error message to the GMSC, indicating that the callee has barred all incoming calls. The HLR supports subscribing/withdrawing and activating/deactivating the service. The subscriber can modify and query the status of the service in his/her MS. Meanwhile, the HLR can specify whether the right of configuring the BAIC service is under the control of the subscriber or the carrier. If the right is under the control of the subscriber, the subscriber can activate/deactivate the service through the MS, as long as the HLR provides the service. Before activating/deactivating the service, the subscriber needs to input a password. The password can be modified in either the MS or the HLR. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service expands the business scope of the carrier and increases service benefits.
Benefits for the subscriber: The service allows the subscriber to bar various calls flexibly. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030205 Function name: Barring of Incoming Calls when Roaming Outside the Home PLMN Country (BIC-ROAM) Specifications: 3GPP29002, 3GPP22088, 3GPP23088, 3GPP24088 Overview: If the service is activated, when the subscriber roams outside the home PLMN country, the subscriber cannot receive any call from other subscribers. Function description: To bar all incoming calls destined to a subscriber roaming outside the home PLMN country, the HLR activates the basic service groups and stores the code of the BIC-ROAM service, data of the basic service groups, and the status information. When the subscriber roams outside the home PLMN country, serves as the callee and receives a routing request from the caller, the HLR judges whether the subscriber has activated the BIC-ROAM service. If yes, the HLR sends an error message to the GMSC, indicating that the callee has barred all incoming calls. The HLR supports subscribing/withdrawing and activating/deactivating the service. The subscriber can query the status of the service in his/her MS. Meanwhile, the HLR can specify whether the right of configuring the BIC- ROAM service is under the control of the subscriber or the carrier. If the right is under the control of the subscriber, the subscriber can activate/deactivate the service through the MS, as long as the HLR provides the service. Before activating/deactivating the service, the subscriber needs to input a password. The password can be modified in either the MS or the HLR. Benefits:
Benefits for the carrier: The service is based on basic service groups. It provides additional way of barring incoming calls for the carrier, and allows the carrier to provide customized services.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: The service allows subscribers engaged in MS lease business to limit the incoming call by controlling the call barring function. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030300 Function name: Number Identification Services Function description: The Number Identification Services include
Calling Line Identification Presentation (CLIP) (WHFD-030301)
Calling Line Identification Restriction (CLIR) (WHFD-030302)
Connected Line Identification Presentation (COLP) (WHFD-030303)
Connected Line Identification Restriction (COLR) (WHFD-030304)
Override Calling Line Identification Restriction (OVER-CLIR) (WHFD- 030305)
Override Connected Line Identification Restriction (OVER-COLR) (WHFD- 030306)
WHFD-030301 Function name: Calling Line Identification Presentation (CLIP) Specifications: 3GPP29002, 3GPP22081, 3GPP23081, 3GPP24081 Overview: The CLIP service is a supplementary service for the called mobile subscriber. When the mobile subscriber receives a call, the network presents the number of the caller to the caller. Function description: The HLR stores the CLIP data of the subscriber. If the location of the subscriber changes or the subscriber modifies data of the service, the HLR sends the data to the VLR. When the location of the subscriber changes or after the subscriber
Function description of HLR9820 V900R003C04
modifies data of the service, the HLR sends the data to the VLR. This following describes an application scenario of the service: Subscriber A has subscribed to the CLIR service and has selected the permanent restriction mode for the service. Subscriber B has subscribed the CLIP service. When subscriber A calls subscriber B, the calling number is not displayed in the MS of subscriber B. , subscriber B has subscribed to the service. When subscriber B receives a call from subscriber A, the network presents the number of subscriber A to subscriber B. Benefits:
Benefits for the carrier: The service provides a way for the carrier for attracting more subscribers.
Benefits for the subscriber: The service allows a subscriber to know the calling number, and takes actions accordingly. For example, the subscriber can decide whether to receive the incoming call. Some subscribers are very busy and do not want to receive incoming calls; some subscribers hope to avoid calls from specified callers; some subscribers want to call back later on; some subscribers want to distinguish business calls from personal calls. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030302 Function name: Calling Line Identification Restriction (CLIR) Specifications: 3GPP29002, 3GPP22081, 3GPP23081, 3GPP24081 Overview: The CLIR service is a supplementary service for the called mobile subscriber. When a mobile subscriber serves as the caller, the service prohibits the network from displaying the calling number to the callee. Function description: The HLR stores the CLIR service data for the subscriber. When subscribing the service, the subscriber can select a restriction mode for the service: 1. Permanent restriction: In this mode, the service is activated for all outgoing calls. The network does not display the calling number for the callee. 2. Temporary permission: In this mode, the CLIR service is activated only when the mobile subscriber precedes the called number with #31#.
Function description of HLR9820 V900R003C04
3. Temporary restriction: In this mode, the CLIR service is activated automatically unless the mobile subscriber precedes the called number with *31#. If the location of the subscriber changes or after the subscriber subscribes to the service, the HLR sends the data to the VLR. When a mobile subscriber initiates a call, the network decides whether to display the calling number to the callee according to the restriction mode. If the location of the subscriber changes or the subscriber modifies data of the service, the HLR sends the data to the VLR. This following describes an application scenario of the service: Subscriber A has subscribed to the CLIR service and has selected the permanent restriction mode for the service. Subscriber B has subscribed the CLIP service. When subscriber A calls subscriber B, the calling number is not displayed in the MS of subscriber B. Benefits:
Benefits for the carrier: The service can protect the privacy of the subscribers, and help the carrier to attract more subscribers.
Benefits for the subscriber: The service can protect the privacy of the subscriber. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030303 Function name: Connected Line Identification Presentation (COLP) Specifications: 3GPP29002, 3GPP22081, 3GPP23081, 3GPP24081 Overview: When a mobile subscriber initiates a call, if the call is forwarded to a third party subscriber, the network displays the number of the third party subscriber for the caller. Function description: The HLR stores the COLP data of the subscriber. When the location of the subscriber changes or after the subscriber modifies data of the service, the HLR sends the data to the VLR. The following describes an application scenario of the function:
Function description of HLR9820 V900R003C04
Subscriber A initiates a call to subscriber B, and subscriber B forwards the call to subscriber C. The network displays or does not display the number of subscriber C for subscriber A, depending on whether subscriber A has subscribed to the COLP service. Benefits:
Benefits for the carrier: This service enlarges the number identification scope and increases the business benefit opportunities.
Benefits for the subscriber: The service enables the caller to have a clear idea of the call connection status and have more choices. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030304 Function name: Connected Line Identification Restriction (COLR) Specifications: GPP29002, 3GPP22081, 3GPP23081, 3GPP24081 Overview: When a mobile subscriber serves as the subscriber to whom a call is forwarded, this service prohibits the network from displaying the number of the mobile subscriber to the caller. Function description: The HLR stores the COLR data of the subscriber. When the location of the subscriber changes or the subscriber modifies data of the service, the HLR sends the data to the VLR. This following describes an application scenario of the service: Subscriber C has subscribed to the COLR service. When subscriber A calls subscriber B, subscriber B forwards the call to subscriber C. In this case, the number of subscriber C is not displayed in the MS of subscriber A, even though subscriber A has subscribed to the COLP service. Benefits:
Benefits for the carrier: This service enlarges the number identification scope and increases the business benefit opportunities.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: The service can prevent the number of a third party subscriber from being displayed in the MS of the caller. It can protect the privacy of the subscriber. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-030305 Function name: Override Calling Line Identification Restriction (OVER-CLIR) Specifications: GPP29002, 3GPP22081, 3GPP23081, 3GPP24081 Overview: The function is based on the callee, is an attribute of the CLIP service, and is intended to override the CLIR service subscribed by the caller. Function description: When the callee subscribes to the CLIP service, he/she can select whether to override the calling number display restriction imposed by the caller. The CLIP and the CLIR are repulsive to each other. When the callee activates the CLIP service and the caller activates the CLIR service, since the priority of the CLIR is higher than that of the CLIP, the network does not display the calling number for the callee. However, when the CLIP service of the callee supports the OVERRIDECATEGORY attribute, the priority of the CLIP is higher than that of the CLIR. In this case, the network displays the calling number for the callee. Benefits:
Benefits for the carrier: This service enlarges the number identification scope and increases the business benefit opportunities.
Benefits for the subscriber: Some subscribers have strong demands for the calling number. After a subscriber subscribes to the OVER-CLIR service, the subscriber can obtain the information on the caller and callee, and is capable of identifying callers who initiate calls out of malicious purpose. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
Function description of HLR9820 V900R003C04
WHFD-030306 Function name: Override Connected Line Identification Restriction (OVER-COLR) Specifications: 3GPP29002, 3GPP22081, 3GPP23081, 3GPP24081 Overview: The function is based on the caller, is an attribute of the COLP service, and is intended to override the COLR service subscribed by the callee. Function description: When the caller subscribes to the COLP service, he/she can select whether to override the called number display restriction imposed by the callee. The COLP and the COLR are repulsive to each other. Provided that the caller activates the COLP service, and the call to the callee is forwarded to a third party subscriber who has activated the COLR service. Since the priority of the COLR is higher than that of the COLP, the network does not display the calling number for the callee. However, when the COLP service of the caller supports the OVERRIDECATEGORY attribute, the priority of the COLP is higher than that of the COLR. In this case, the network displays the number for the third party subscriber. Benefits:
Benefits for the carrier: This service enlarges the number identification scope and increases the business benefit opportunities.
Benefits for the subscriber: Some subscribers have strong demands for the called number. After a subscriber subscribes to the OVER-COLR service, the subscriber can obtain the information on the callee, and prevent call forwarding out of malicious purpose. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
1.2.3 ODB Service WHFD-040000 Function name: Operator Determined Barring (ODB) Function description:
Function description of HLR9820 V900R003C04
ODB means that the call barring is under the control of the carrier. The carrier controls the subscriber's capability of initiating and receiving calls. The ODB is applicable to all terminal services and bearer services except the emergency calls. Compared with other supplementary service, the ODB has higher priority. That is, when the ODB contradicts with other supplementary services, other supplementary services are disabled. Similar to call restriction supplementary services, the ODB realizes call barring. However, they have the following differences:
The status of the ODB service can only be controlled by the carrier. The status of other call restriction supplementary service can be controlled by either the carrier or the subscriber.
The ODB becomes applicable once it is provided for the subscriber. Before other call restriction supplementary services become applicable, they must be activated by either the carrier or the subscriber's terminal. The HLR mainly provides three categories of ODB functions.
ODB Call Barring (WHFD-040100)
ODB Barring of Supplementary Services Management (WHFD-040201)
ODB Barring of Roaming (WHFD-040300)
WHFD-040100 Function name: ODB Call Barring Function description: The HLR provides diversified ODB call barring services, allowing the carrier to manage the subscribers conveniently. The ODB call barring services include:
ODB: Barring of Outgoing Calls(WHFD-040101)
ODB: Barring of Outgoing International Calls (WHFD-040102)
ODB: Barring of Outgoing Calls when Roaming Outside the Home PLMN Country (WHFD-040104)
ODB: Barring of Domestic Toll Calls (HPLMN Self-Defined Type 1) (WHFD-040105)
ODB: Barring of Incoming Calls (WHFD-040106)
ODB: Barring of Incoming Calls when Roaming Outside the Home PLMN Country (WHFD-040107)
ODB: Barring of Outgoing Premium Rate Calls (Information) (WHFD- 040108)
ODB: Barring of Outgoing Premium Rate Calls (Entertainment) (WHFD- 040109)
Function description of HLR9820 V900R003C04
WHFD-040101 Function name: ODB: Barring of Outgoing Calls Specifications: 3GPP29002, 3GPP22041 Overview: This service can bar all outgoing calls. Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. The MSC realizes call barring. Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to bar outgoing calls from a defaulting subscriber and avoid loss in call charge.
Benefits for the subscriber: The service allows the subscriber to select a conversation mode based on his/her financial status, and avoids unnecessary waste in call charge. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040102 Function name: ODB: Barring of Outgoing International Calls Specifications: 3GPP29002, 3GPP22041 Overview: This service can bar all international outgoing calls. Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the
Function description of HLR9820 V900R003C04
HLR sends the subscription data of the subscriber to the VLR of the subscriber. The MSC realizes barring of international outgoing calls from the subscriber. Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: The service allows the subscriber to select a conversation mode based on his/her economic status, and avoids unnecessary waste in call charge. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-040104 Function name: ODB- BOCROAM ODB: Barring of Outgoing Calls when Roaming Outside the Home PLMN Country Specifications: 3GPP29002, 3GPP22041 Overview: The service bars all outgoing calls from a subscriber when the subscriber roams outside the country of the HPLMN. Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. When the subscriber roams outside the home PLMN country and initiates a call, the MSC bars the call from the subscriber. Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: The service provides the subscriber with an economical conversation mode, and avoids unnecessary waste in call charge.
Function description of HLR9820 V900R003C04
Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040105 Function name: ODB: Barring of Domestic Toll Calls (HPLMN Self-Defined Type 1) Specifications: 3GPP29002, 3GPP22041 Overview: This service realizes barring of domestic toll calls (HPLMN self-defined type 1). Function description: The HLR defines four ODB services (ODBPB1, ODBPB2, ODBPB3, and ODBPB4): ODBPB1 is for barring domestic toll calls, and other three ODB services are defined by the carrier to realize special call barring functions. The cooperation from the MSC is necessary. The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: The service provides the subscriber with an economical conversation mode, and avoids unnecessary waste in call charge. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040106 Function name: ODB: Barring of Incoming Calls (ODB-BAIC) Specifications:
Function description of HLR9820 V900R003C04
3GPP29002, 3GPP22041 Overview: This service realizes barring all incoming calls. Function description: The subscription data of the service is stored in the HLR, but is not sent to the VLR. The HLR realizes barring of all incoming calls to the subscriber. When the HLR receives a routing request message from the GMSC, it judges whether the subscriber has subscribed to the ODB-BAIC service. If yes, the HLR returns a message to the GMSC to indicate that the calls to the subscriber are barred. Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040107 Function name: ODB: Barring of Incoming Calls when Roaming Outside the Home PLMN Country (ODB-BICROAM) Specifications: 3GPP29002, 3GPP22041 Overview: The service bars all incoming calls when a subscriber roams outside the home PLMN country. Function description: The subscription data of the service is stored in the HLR, but is not sent to the VLR. The HLR realizes barring all incoming calls to the subscriber. When the HLR receives the routing request message from the GMSC, it judges whether the subscriber has subscribed to the ODB-BICROAM service. If the subscriber has subscribed to the service, when the subscriber roams outside the country of HPLMN, the HLR returns a message to the GMSC to indicate that incoming calls to the subscriber are barred. Benefits:
Function description of HLR9820 V900R003C04
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040108 Function name: ODB: Barring of Outgoing Premium Rate Calls (Information) Specifications: 3GPP29002, 3GPP22041 Overview: The service realizes barring of outgoing premium rate calls (information). Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. The MSC realizes barring of outgoing premium rate calls (information). Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: This service helps subscribers to avoid unnecessary call charges resulting from ignorance of the call rate of some services. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040109 Function name:
Function description of HLR9820 V900R003C04
Barring of Outgoing Premium Rate Calls (Entertainment) Specifications: 3GPP29002, 3GPP22041 Overview: The service realizes barring of outgoing premium rate calls (entertainment). Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR. The MSC realizes barring of outgoing premium rate calls (entertainment). Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: The service can avoid unnecessary loss of call charges due to the ignorance of the call rate of some services. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-040200 Function name: ODB: Barring of Supplementary Services Function description: The HLR supports the ODB: barring of supplementary services, including: Barring of supplementary services management (WHFD-040201)
WHFD-040201 Function name: ODB: Barring of Supplementary Services Management Specifications: 3GPP29002, 3GPP22041 Overview:
Function description of HLR9820 V900R003C04
The HLR provides supplementary services barring management, and supports subscribing and withdrawing the service. Function description: The service is subscribed and activated in the HLR. The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. The MSC realizes barring of supplementary services management. The subscriber can operate the supplementary services in many ways, for example, activate the call barring services through the MS, and perform other USSD operations. If the subscriber has subscribed to the service, the subscriber is unable to perform the above operations through the MS. Benefits:
Benefits for the carrier: The service provides the carrier with an additional way of controlling the subscribers, and allows the carrier to control the call scope of the subscriber and provide call packages.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040300 Function name: ODB: Barring of Roaming Function description: The HLR provides:
ODB: Barring of Roaming Outside the Home PLMN (WHFD-040301)
ODB: Barring of Roaming Outside the Home PLMN Country (WHFD- 040302)
WHFD-040301 Function name: ODB: Barring of Roaming Outside the Home PLMN Specifications: 3GPP29002, 3GPP22041
Function description of HLR9820 V900R003C04
Overview: The service realizes barring of roaming outside the home PLMN. Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. The HLR realizes barring of roaming outside the home HPLMN. If the subscriber has subscribed to the service, when the subscriber roams outside the home HPLMN, the location updating fails. Benefits:
Benefits for the carrier: The service allows the carrier to control the roaming scope of the subscriber and provide call packages.
Benefits for the subscriber: The service can avoid unnecessary loss of call charges resulting from roaming. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040302 Function name: ODB: Barring of Roaming Outside the Home PLMN Country Specifications: 3GPP29002, 3GPP22041 Overview: The service realizes barring of roaming outside the home PLMN country. Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. The MSC realizes barring of roaming outside the home HPLMN country. If the subscriber has subscribed to the service, when the subscriber roams outside the home HPLMN country, the location updating fails. Benefits:
Benefits for the carrier: The service allows the carrier to control the roaming scope of the subscriber and provide call packages.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: The service can avoid unnecessary loss of call charge loss resulting from roaming. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040400 Function name: ODB: Barring of Registration of Forwarded-to Number Specifications: 3GPP29002, 3GPP22041 Overview: The service can restrict a subscriber's right of registering the Ftn numbers. It can bar the registration of:
All Ftn numbers
International Ftn numbers
International Ftn numbers except those destined to the home HPLMN country Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR of the subscriber. The MSC realizes barring of registration of Ftn numbers. If the subscriber has subscribed to the service, when the subscriber registers an Ftn number through the terminal, the registration fails. Enhanced function description: The service complies with standard protocols. The HLR sends data of the service to the VLR. The MSC realizes the function. Meanwhile, the HLR can also restrict the registration of Ftn numbers. For example, the HLR can control whether a subscriber can forward calls to the same area, whether the subscriber can forward international calls, and whether the registered Ftn numbers can carry country code. The HLR can realize these functions through configuration of data or subscription of the related template. The service allows the carrier to provide different forwarding policies for different subscriber groups. Benefits:
Benefits for the carrier: The service allows the carrier to control the registration of Ftn numbers and provide call packages.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: The service can prevent Ftn registration due to mistaken operations. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-040500 Function name: ODB: Barring of Call Transfer Specifications: 3GPP22041, 3GPP29002 Overview: This service can restrict a subscriber's call transfer rights. Function description: The subscription data of the service is stored in the HLR. When the location of a subscriber is updated or the subscription data of the subscriber is modified, the HLR sends the subscription data of the subscriber to the VLR. The MSC realizes barring of call transfer on one of the following occasions:
Bar all the call transfers.
Bar call transfer when the served subscriber pays at least one of two calls.
Bar call transfer when the served subscriber pays at least one of two calls at international call rate.
Bar call transfer when the served subscriber pays at least one of two calls at regional call rate in.
Bar call transfer when the served subscriber pays at least one of two calls.
Bar call transfer when the served subscribers involved are under the same MSC/VLR. Benefits:
Benefits for the carrier: The service allows the carrier to control the call transfer and provide various call packages.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
Function description of HLR9820 V900R003C04
1.2.4 Other Services WHFD-050000 Function name: Other Services Function description: Other services include:
Liable Subscriber Suspension by Lock (WHFD-050100)
WHFD-050100 Function name: Liable Subscriber Suspension by Lock Specifications: None. Function description: The service provides locking operation, allowing the carrier to suspend the service of the defaulting subscriber and avoid loss of call charges. When the carrier performs locking operations for the subscriber, it can control separately:
Whether to allow the subscriber to receive incoming calls.
Whether to allow the subscriber to make outgoing calls.
Whether to allow the subscriber to use the GPRS service. Through the above control mechanisms, the carrier can restrict the subscriber's services flexibly. Enhanced function description: The HLR provides two types of locks for suspending services of the defaulting subscribers: lock for the MSC domain and lock for the PS domain. Select the desired lock according to the network access mode (NAM) of the subscriber. If the NAM of the subscriber is MSC and SGSN, after the subscriber's line is locked, the subscriber can only register service in the CS domain and is unable to initiate/receive a call and perform USSD/GPRS operations. If the NAM of the subscriber is SGSN, after the subscriber's line is locked, the subscriber is unable to access the PS domain.
Function description of HLR9820 V900R003C04
Benefits
Benefits for the carrier: The carrier can suspend the telephone service, short message service, and GPRS service of a subscriber to avoid loss of call charges and defaulting of the subscriber.
Benefits for the subscriber: The timely suspension of services by the carrier can prevent the call charge of the subscriber from exceeding the limit. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-050200 Function name: Subscriber Applied Suspension Specifications: None. Overview: The service allows a subscriber to apply for service suspension. Function description: The HLR provides call barring service, allowing the subscriber to apply for service suspension. When applying for service suspension, the subscriber must go to the business hall to finish the related formalities. When applying for canceling the service suspension, the subscriber must go to the business hall to finish the related formalities. Enhanced function description: In the HLR, the Liable Subscriber Suspension by Lock service differs from the Subscriber Applied Suspension service in that:
Different targets: The former targets at the carrier, and the later targets at the subscriber.
Different functioning principles: The former is realized through the ODB service; the later is realized through the call baring mechanism of the supplementary services. Benefits:
Benefits for the carrier: The carrier can provide the lock function for the subscriber.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: The subscriber can use the service to reduce unnecessary call charges. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-050300 Function name: Subscriber Category Setting Specifications: 3GPP29002, 3GPP23008 Overview: This service is for defining subscriber category. Every subscriber is allocated with a subscriber category. Function description: Every IMSI is allocated with a subscriber category. The HLR supports configuring and managing subscriber categories. The subscriber categories supported by the HLR include UNKNOWN, FRENCH, ENGLISH, GERMAN, RUSSIAN, SPANISH, SPECIAL, RESERVE, COMMON, SUPERIOR, DATACALL, TESTCALL, SPARE, PAYPHONE, and COIN. In the location update flow, the HLR sends the data of subscriber categories to the VLR so that the VLR can handle the calls and call charges according to the subscriber categories. Benefits:
Benefits for the carrier: The service allows the carrier to configure various subscriber categories and divide the subscribers into different groups.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-571600 Function name:
Function description of HLR9820 V900R003C04
Multi-NDC Specifications: None Overview: The multi-NDC service enables a network to have multiple network numbers. Function description: When a subscriber initiates a call to a subscriber in the public land digital cellular mobile network, the subscriber needs to dial the MSISDN of the callee. The MSISDN consists of CC-NDC-SN. National Destination Code (NDC) is a part of the MSISDN, is also called network number, and is used to distinguish the carriers to which the subscriber numbers belong. The length of the NDC ranges from 1 to 3. An HLR supports multiple NDCs and provides equal services for subscribers with different NDCs. Benefits:
Benefits for the carrier: The service allows the carrier to perform network planning and data configuration conveniently.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
1.2.5 Mobility Services WHFD-060000 Function name: Mobility Services Function description: The HLR provides standard protocol compliant mobility services, including:
Location management services (WHFD-060100)
Authentication management services (WHFD-060200)
Subscriber management services (WHFD-060300)
Fault recovery services (WHFD-060400)
Function description of HLR9820 V900R003C04
WHFD-060100 Function name: Location Management Services Function description: The HLR provides standard protocols compliant location management services, including:
Location update (WHFD-060101)
Location Cancellation (WHFD-060102)
Purge MS (WHFD-060103)
WHFD-060101 Function name: Location update Specifications: 3GPP29002 Overview: The location update service is a flow initiated by the subscriber's terminal for maintaining subscriber data consistency between the VLR and the HLR. Function description: The subscription data, location information, and status information of the subscriber are stored in the HLR. In this flow, the HLR sends all subscription data of the subscriber to the VLR. Enhanced function description: Location update is the major process of the location management, and is triggered by the MS. In the GSM system, the HLR, VLR, and MS (or the SIM card) must know the location information of the subscriber. When the location information changes, it is necessary to maintain consistency among the HLR, VLR, and the MS. When the MS finds a location area that can provide better service, it notifies the MSC/VLR of the new location area (generally, the MSC and the VLR are integrated into a function entity). If the original location area and the new location area belong to the same MSC/VLR, modify the location area information of the MS in the VLR; if they belong to different MSC/VLR, the new MSC/VLR must send a message to the HLR for obtaining the data of the MS. The HLR sends the information to the new MSC/VLR, and notifies the original MSC/VLR to delete the registration data of the MS, and registers the MS in the new MSC/VLR. Meanwhile, the HLR also updates the MSC/VLR number of the MS.
Function description of HLR9820 V900R003C04
By checking whether the new MSC/VLR contains the records of the MS, the network can tell whether the new location area and the original location area belong to the same MSC/VLR. But the network must know the IMSI number of the MS. The IMSI number can be obtained from the original VLR(PVLR) of the MS or the MS. The following lists the several situations of location update:
Normal location update. It triggers location update flow.
Periodic location update
IMSI attached/detached
The VLR receives the service operation instruction from the MS when the flag bit of the VLR indicates fault.
Benefits:
Benefits for the carrier: This service provides a basic network function.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060102 Function name: Location Cancellation Specifications: 3GPP29002 Overview: The service enables the HLR to initiate a flow to clear the subscriber data in the VLR. Function description: To ensure that the subscriber data in the network is always unique and the most- up-to-date, when a subscriber roams from one VLR to another VLR, the HLR sends a location cancellation request to the original VLR to instruct the original VLR to clear the subscriber data. When a subscriber is deregistered or adopts a new SIM card, the HLR initiates the location cancellation flow to the VLR of the subscriber. Benefits:
Function description of HLR9820 V900R003C04
Benefits for the carrier: This service provides a basic network function.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060103 Function name: Purge MS Specifications: 3GPP29002 Overview: If a subscriber is offline for a long time, the VLR sends a notice to the HLR through the Purge MS service. The HLR then labels the status of the subscriber as being unreachable for a long time. Function description: When a subscriber remains offline for a certain period (controlled by the VLR), the VLR triggers the Purge MS flow by sending a message to the HLR. After receiving the message, the HLR sets the Purge flag bit of the subscriber to 1, indicating that the subscriber is unreachable currently. Enhanced function description: In some flows, the HLR needs to know the current status of a subscriber. The HLR can obtain the subscriber's status from the VLR by triggering a flow (such as the Provide_Subscriber_Info). The VLR can also trigger a flow to notify the HLR of the change of the subscriber's status. The Purge MS flow is triggered by the VLR, and is intended to notify the HLR of the subscriber's being offline for a long time. After receiving the purge flow request from the VLR, the HLR records the subscriber's status. When other flow needs to check the subscriber's status, the HLR does not have to query the subscriber's status from the VLR, thus reducing the process time and unnecessary network traffics. Benefits:
Benefits for the carrier: This service can reduce traffic volume.
Benefits for the subscriber: None. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060200 Function name: Authentication Management Services Function description: The HLR provides standard protocols compliant authentication management services, including
Authentication information provision
Authentication failure report Enhanced function description: The authentication is an important function in the mobile communication system. It is intended to prevent illegal MSs from enjoying the wireless communication through unlawful means. During the authentication process, the MS and the network perform calculations using the same algorithm based on the shared parameters (generally provided by the network) and their respective keys. If the calculation results are the same, that is, they hold the same keys, it means that the MS passes the authentication successfully.
WHFD-060201 Function name: Authentication Information Provision Specifications: 3GPP29002 Overview: The service enables the VLR to initiate a flow to obtain the subscriber authentication set. Function description: The HLR supports authentication of 2G subscribers and 3G subscribers, and supports authentication triplet for 2G subscribers and authentication quintuple for 3G subscribers. The HLR provides the following authentication algorithms:
Authentication algorithms for subscribers holding SIM cards: COMP128_1, COMP128_2, COMP128_3, and MILENAGE
Authentication algorithm for subscribers holding USIM cards: MILENAGE Meanwhile, the HLR adopts active and standby subscriber authentication data reuse counters. The maximum reuse counter allowed for every authentication set
Function description of HLR9820 V900R003C04
(five authentication triplets) is 3. If the active reuse counter is not 0, the HLR sends a MAP message to the VLR as a response to its authentication request through the authentication set of the active reuse counter, and reduces the active reuse counter by 1.If the reuse counter is 0 and the standby reuse counter is not 0, the HLR sends a MAP message to the VLR as a response to its authentication request through the authentication set of the standby reuse counter, and reduces the standby reuse counter by 1.If the two counters are 0, the HLR calculates the authentication through the function of the Authentication Center (AUC), adjusts the reuse counter to the maximum, and then returns a message to the VLR as the response to its authentication request. Enhanced function description: The HLR supports both 2G authentication and 3G authentication. In the case of 2G authentication, the HLR returns authentication triplets (SRES, KC, and RAND); in the case of 3G authentication, the HLR returns authentication quintuples (MAC, XRES, CK, IK, and AK). Meanwhile, the 3G authentication allows the terminal to initiate the authentication to the network. The following introduces the 2G authentication and 3G authentication respectively. In the 2G GSM system, the authentication flow is as follows: 1. The VLR/SGSN receives the registration request from the MS, sends the IMSI of the subscriber to the HLR/AUC of the MS, and requests them to authenticate the subscriber. 2. The HLR/AUC receives the authentication request from the VLR/SGSN, generates the RAND, calculates the authentication vector (SRES, KC, and RAND), and sends it to the VLR/SGSN. 3. The MSC/VLR sends an authentication command (containing the RAND) to the MS. The MS calculates the SRESms based on the RAND and its own KI, and sends a message with the SRESms as the response to the authentication request to the MSC/VLR. If SRESms is equal to SRESauc, the subscriber is considered as a legal subscriber and passes the authentication. Otherwise, the subscriber fails to pass the authentication, and is refused to access the network. In the 3G GSM system, the authentication flow is as follows: 1. The VLR/SGSN receives the registration request from the MS, sends the IMSI of the subscriber to the HLR/AUC of the MS, and requests it to authenticate the subscriber. 2. The HLR/AUC receives the authentication request from the VLR/SGSN, generates the SQN and RAND, calculates the authentication vectors (MAC, XRES, CK, IK, and AK), and sends them to the VLR/SGSN. Among the authentication vectors generated by the HLR/AUC, the MAC is used to enable the MS to verify the legality of the network; the XRES is used to enable the network to verify the legality of the MS; the CK and the IK are used to encrypt the air interface and verify the integrity of the authentication data; the AK is used to encrypt the SQN. The role of the SQN is to ensure the freshness of the authentication vector between the MS and the VLR/SGSN. The authentication before every
Function description of HLR9820 V900R003C04
communication adopts different authentication vector to ensure that the CK and IK adopted in every communication event are calculated based on different RAND. The MAC used in every authentication uses the incremental SQN as one of its input variables to ensure the freshness of the key and prevent attacks. The AMF participates in the calculation of authentication vector as a parameter. Every vendor adopts a default value for it. The AMF of Huawei's HLR is set to 0x762C. 3. The VLR/SGSN receives the authentication vectors, sends RAND||AUTN to the MS, and requests the MS to generate authentication data and verify SQN. 4. The MS receives the authentication request. It calculates the XMAC, and then compares the XMAC with the MAC of the AUTN. If they are different, it sends a refuse authentication message to the VLR, and gives up the authentication process. 5. The MS verifies whether the received SQN falls within the valid range. If not, the MS sends a synchronization failure message to the VLR, and gives up the authentication process. If the above two verification events succeed, the MS calculates RES (RES=f2(RAND)), CK, and IK, and sends RES to the VLR/SGSN. The VLR/SGSN receives the RES from the MS, and compares the RES with the XRES of the authentication vector. If they are the same, the authentication succeeds. Otherwise, the authentication fails. Benefits:
Benefits for the carrier: The service can prevent illegal MS from enjoying telecommunication services and protect the interests of the carrier.
Benefits for the subscriber: The service can prevent the theft of the subscriber number. The 3G system supports the authentication of the network, reducing the chance of network fraudulence against the subscriber. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060202 Function name: Authentication failure report Specifications: 3GPP29002 Overview:
Function description of HLR9820 V900R003C04
The service enables the VLR to initiate the flow of notifying the HLR of subscriber authentication failure. Function description: The HLR supports reporting authentication failure events. When the authentication set is sent to the VLR and the subscriber authentication in the VLR fails, the VLR sends the authentication failure report to the HLR. The authentication failure report carries the cause value of authentication failure, including subscriber response error and network signature error. Upon receipt of the message, the HLR returns a response. Benefits:
Benefits for the carrier: The service allows the carrier to identify and collect statistics on authentication failure events.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060300 Function name: Subscriber Management Services Function description: The HLR provides standard protocols compliant subscriber management services, including:
Subscriber Data Insertion(WHFD-060301)
Subscriber Data Deletion(WHFD-060302)
WHFD-060301 Function name: Subscriber Data Insertion Specifications: 3GPP29002 Overview:
Function description of HLR9820 V900R003C04
When the subscriber data in the HLR is modified, the HLR sends the modified subscriber data to the VLR to ensure the subscriber data consistency between the HLR and the VLR. Function description: The HLR supports inserting subscriber data in the following flows:
In the location update flow, the HLR sends the subscription data of the subscriber to the VLR.
When the subscription data is modified by the subscriber, the HLR sends the modified subscription data to the VLR.
When the VLR initiates the data recovery flow request, the HLR reinserts the data of the subscriber to ensure the subscriber data consistency between the VLR and the HLR. Enhanced function description: In the data insertion flow, the HLR supports sending replacement data if the VLR does not support the original data. When the VLR does not support the service data sent by the HLR, the HLR sends the replacement data according to the related configuration. For example, when the HLR sends ODB-BAOC, the VLR returns a response to indicate that it does not support the data. In this case, the HLR rejects the configuration data or sends supplementary service BAOC, depending on the related configuration data. Benefits:
Benefits for the carrier: This service can ensure the subscriber data consistency between the VLR and the HLR, and maintain the service availability.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060302 Function name: Subscriber Data Deletion Specifications: 3GPP29002 Overview: When the data of a subscriber in the HLR is deleted, the HLR sends a request of deleting subscriber data to the VLR to maintain subscriber data consistency between the HLR and the VLR.
Function description of HLR9820 V900R003C04
Function description: When a subscriber cancels the subscription of a service, the HLR triggers the subscriber data deletion flow and requests the VLR to delete the related data. Benefits:
Benefits for the carrier: This service can ensure the subscriber data consistency between the VLR and the HLR, and maintain the service availability.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060400 Function name: Fault Recovery Services Function description: The HLR provides standard protocols compliant fault recovery services, including
HLR Fault Recovery (Reset) (WHFD-060401)
VLR Fault Recovery (Restore) (WHFD-060402)
Check SS Indication (Check SS indication) (WHFD-060403)
WHFD-060401 Function name: HLR Fault Recovery Specifications: 3GPP29002 Overview: When the HLR is faulty, it initiates the Reset flow to the VLR. The VLR initiates the location update flow as instructed by the VLR, and regains the subscriber data to ensure the subscriber data consistency between the VLR and the HLR. Function description: The HLR supports the standard fault recovery flow, namely the Reset flow. When the HLR is restarted due to faults, the subscriber data in the HLR may be inconsistent with that in the VLR. In this case, the HLR initiates the Reset flow to
Function description of HLR9820 V900R003C04
instruct the VLR to initiate the location update flow so that the VLR can regain the subscriber data from the HLR and maintain the subscriber data consistency between the HLR and VLR. For the VLR, the Reset flow is of system level. The VLR supports obtaining data from the HLR to update all subscriber data. The HLR supports initiating the Reset flow automatically and manually. In the subscriber data cutover, it is required to initiate the Reset flow manually. Benefits:
Benefits for the carrier: This service has enhanced the network fault recovery capability and ensure the network data consistency.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060402 Function name: VLR Fault Recovery Specifications: 3GPP29002 Overview: When the VLR is faulty and initiates the data recovery flow, the HLR supports resending subscriber data to the VLR. Function description: When receiving the Restore request from the VLR, the HLR supports resending subscriber data to the VLR to ensure the subscriber data consistency between the VLR and HLR. When the data of a subscriber in the VLR is labeled as untrustworthy or the VLR receives a request from the HLR for obtaining the roaming number of an unknown subscriber, the VLR initiates the data restore flow. For the VLR, the data restore flow is of user level. The VLR supports initiating the data restore flow for a subscriber. Benefits:
Benefits for the carrier: This service enhances the network fault recovery capability and ensures the network data consistency.
Benefits for the subscriber:
Function description of HLR9820 V900R003C04
None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-060403 Function name: Check SS Indication Specifications: 3GPP29002 Overview: The HLR supports the flow of notifying the subscriber of the changes to his/her supplementary services. The service is mainly intended to notify the subscriber of the possible changes to data of a supplementary service. Function description: The flow is mainly intended to notify the subscriber of the possible changes to a supplementary service. For example, after the HLR is restarted, if the VLR receives the MAP_FORWARD_CHECK_SS_INDICATION message from the HLR, the VLR forwards the message to the MSC, and the MSC notifies the terminal. After the HLR restarts, if the subscriber updates his/her location, the flow is incorporated into the location update flow The flow is unidirectional. Benefits:
Benefits for the carrier: This service enhances the network fault recovery capability and network fault notification fault, and ensures the network data consistency.
Benefits for the subscriber: The service enables the subscriber to know the changes to a supplementary service due to network reasons and avoid unnecessary financial losses. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
1.2.6 Call Handling Services WHFD-070000 Function name: Call Handling Services
Function description of HLR9820 V900R003C04
Function description: The HLR provides standard protocols compliant call processing services, including:
Send routing information (WHFD-070100)
Provide roaming number (WHFD-070200) Enhanced function description: The call processing service is the basic service of the mobile network. When a subscriber initiates a call to another subscriber, the MSC of the caller must know the location of the callee, that is, the routing information of the callee. In the mobile network, the routing information is provided in the form of roaming number. The roaming number provides the location information necessary to the setup of call connection between the MSC of the caller and that of the callee. The HLR is necessary to the process of obtaining the roaming number. First, the GMSC initiates the request for obtaining the routing information to the HLR. Upon receiving the request, the HLR sends a request for obtaining the roaming number to the MSC of the callee. The MSC of the callee sends a response message with the roaming number to the HLR, and the HLR then sends a response message with the roaming number to the GMSC. The following shows the basic flow.
WHFD-070100 Function name: Send Routing Information Specifications: 3GPP29002 Overview: When receiving a request for obtaining routing information, the HLR carries the routing information in the response message.
Function description of HLR9820 V900R003C04
Function description: The GMSC initiates the flow of obtaining the routing information. It sends a request for obtaining the roaming number of the callee to the HLR. When receiving the message for obtaining the routing information, the HLR checks the services of the subscriber, for example, whether the subscriber has subscribed to the call barring service and the call forwarding service. Next, the HLR decides whether to continue to obtain the roaming number, or return a message with error codes or Ftn number to the GMSC.
If the HLR intends to return a message with error codes, the message contains such information as unknown subscriber, call barring, forwarding restriction, and absent subscriber.
If the subscriber has subscribed to the unconditional call forwarding service, the subscriber returns the message with the Ftn number.
If the HLR intends to obtain the roaming number, the HLR initiates the flow of obtaining the roaming number from the MSC of the callee. After obtaining the roaming number, the HLR sends a response message with the roaming number to the MSC of the caller. Enhanced function description: The HLR supports processing a call flow according to the bearer capability of the call flow. When receiving a request with the ISDN-BC (bearer capability), the HLR first converts ISDN-BC into the GSM-BC, and then translates it into basic service code. If the subscriber has subscribed to the basic service, the HLR sends a request to the VLR for obtaining the roaming number. When the HLR receives a request without the ISDN-BC, the HLR initiates a request for obtaining the roaming number according to the default basic service of the subscriber. Meanwhile, the HLR supports multiple MSISDNs. When the caller initiates a call to the assisting MSISDN of the callee, the HLR converts the assisting MSISDN into basic service code, and sends a request to the VLR for obtaining the roaming number. Benefits:
Benefits for the carrier: This service realizes a basic network function.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-070200 Function name: Provide Roaming Number Specifications: 3GPP29002
Function description of HLR9820 V900R003C04
Overview: The HLR supports sending a request for obtaining the roaming number to the VLR of the callee. When receiving the roaming number, the HLR sends a response message with the roaming number to the GMSC. Function description: When receiving the request for obtaining the roaming number from the GMSC, the HLR initiates the flow of obtaining the roaming number from the VLR of the callee according to the current processing results. The MSC of the callee carries the roaming number in its response message to the HLR. The HLR then sends a response message with the roaming number to the GMSC. Benefits:
Benefits for the carrier: This service realizes a basic network function.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. 1.2.7 Supplementary Service Related Services WHFD-080000 Function name: SS-Specific Services Function description: The HLR provides standard protocols compliant SS-related services, including:
SS Registration (RegisterSS) (WHFD-080100)
SS Deletion (Erase SS) (WHFD-080200)
SS Activation (Activate SS) (WHFD-080300)
SS Deactivation (Deactivate SS) (WHFD-080400)
SS Query (Interrogate SS) (WHFD-080500)
SS Password Registration (Register password) (WHFD-080600)
SS Password Provision (Get password) (WHFD-080700)
WHFD-080100 Function name: SS Registration Specifications:
Function description of HLR9820 V900R003C04
3GPP29002 Overview: The HLR enables the subscriber to initiate the registration of a supplementary service from the terminal. Function description: The HLR enables the subscriber to register a supplementary service related to call forwarding from the terminal. Before the subscriber can register a supplementary service related to call forwarding from the terminal, the carrier must provide the SS Registration service in its business hall. The registration of call forwarding related supplementary services can be based on basic service groups. For example, the HLR supports forwarding both a voice call and a data call. When initiating the registration of call forwarding services, the subscriber needs to provide the corresponding Ftn numbers. Upon receiving the request of registering the Ftn numbers, the HLR stores these Ftn numbers, and activates the services for the subscriber. The HLR then sends the subscriber's call forwarding service data to the VLR. Benefits:
Benefits for the carrier: The service enables the carrier to provide a subscriber-oriented service flow.
Benefits for the subscriber: The service enables the subscriber to register supplementary services through the terminal without going to the business hall. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-080200 Function name: SS Deletion Specifications: 3GPP29002 Overview: The HLR enables the subscriber to deregister a supplementary service from the terminal. Function description: The HLR enables the subscriber to deregister a supplementary service related to call forwarding from the terminal. The deregistration of a call forwarding related supplementary service can be based on basic service groups. For example, the HLR supports forwarding both a voice call and a data call. Upon receiving the request of deregistering the call forwarding service, the HLR deletes these Ftn numbers, and deactivates the service for the subscriber. The HLR then resends the subscriber's call forwarding service data to the VLR.
Function description of HLR9820 V900R003C04
Benefits:
Benefits for the carrier: The service enables the carrier to provide a subscriber-oriented service flow.
Benefits for the subscriber: The service enables the subscriber to deregister supplementary services through the terminal without going to the business hall. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-080300 Function name: SS Activation Specifications: 3GPP29002 Overview: The HLR enables the subscriber to activate a supplementary service from the terminal. Function description: The HLR enables the subscriber to activate a call barring supplementary service from the terminal. Before the subscriber can activate a call barring related supplementary service from the terminal, the carrier must provide the SS Activation service in the business hall. The activation of call barring related supplementary service can be based on basic service groups. For example, the HLR supports barring both a voice call and a data call. After receiving a request from the subscriber, the HLR activates the call barring service of the subscriber, and then resends the subscriber's call barring service data to the VLR. Benefits:
Benefits for the carrier: The service enables the carrier to provide a subscriber-oriented service flow.
Benefits for the subscriber: The service enables the subscriber to activate a supplementary service through the terminal without going to the business hall. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
Function description of HLR9820 V900R003C04
WHFD-080400 Function name: SS Deactivation Specifications: 3GPP29002 Overview: The HLR enables the subscriber to deactivate supplementary services from the terminal. Function description: The HLR enables the subscriber to deactivate a call barring supplementary service from the terminal. The deactivation of a call barring related supplementary service can be based on basic service groups. For example, the HLR supports barring both a voice call and a data call. After receiving a request from the subscriber, the HLR deactivates the call barring service of the subscriber, and then resends the subscriber's call barring service data to the VLR. Benefits:
Benefits for the carrier: The service enables the carrier to provide a subscriber-oriented service flow.
Benefits for the subscriber: The service enables the subscriber to deactivate a supplementary service through the terminal without going to the business hall. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-080500 Function name: SS Query Specifications: 3GPP29002 Overview: The HLR enables the subscriber to query the status of a supplementary service from the terminal. Function description: The HLR enables the subscriber to query the status of a supplementary service from the terminal. For example, the subscriber can query whether a call forwarding supplementary service or call barring supplementary service has been activated. When receiving a query request, the HLR sends a message with information on the
Function description of HLR9820 V900R003C04
status of the service to the MSC. The query result is displayed in the subscriber's terminal. Benefits:
Benefits for the carrier: The service enables the carrier to provide a subscriber-oriented service flow.
Benefits for the subscriber: The service enables the subscriber to query the status of a supplementary service from the terminal. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-080600 Function name: SS Password Registration Specifications: 3GPP29002, 3GPP22004 Overview: When a subscriber activates the supplementary service from the terminal, he/she needs to input the password of the supplementary service. The HLR enables the subscriber to configure and modify the password of the supplementary service from the terminal. Function description: The HLR enables the subscriber to configure and modify the password of a supplementary service from the terminal. When configuring the password of a supplementary service, the network requests the subscriber to input the initial password. After the initial password is confirmed, the network requests the subscriber to input a new password, and then confirm it. At the time of subscription, the default password is 0000. When a subscriber activates a call barring supplementary service from the terminal, the subscriber needs to input the password of the supplementary service. Benefits:
Benefits for the carrier: The service enables the carrier to provide a service security protection mechanism for the subscriber.
Benefits for the subscriber: The service can guarantee the security of the subscriber's service. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. WHFD-080700 Function name: SS Password Provision Specifications: 3GPP29002, 3GPP22004 Overview: When a subscriber operates a supplementary service from the terminal, the HLR requires the subscriber to input the password of the supplementary service to authenticate the legality of the subscriber. Function description: When a subscriber activates a supplementary service or modifies the password of a supplementary service from the terminal, the HLR requires the subscriber to input the password of the supplementary service. After obtaining the original password, the HLR requires the subscriber to input and verify the new password. When a subscriber modifies the password of a supplementary service or changes the status of a call barring supplementary service, the flow between the HLR and the MSC requires the subscriber to input the password of the supplementary service so as to authenticate the legality of the subscriber. Benefits:
Benefits for the carrier: The service enables the carrier to provide a service security protection mechanism for the subscriber.
Benefits for the subscriber: The service can guarantee the security of the subscriber's service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
1.2.8 Subscriber Data Management WHFD-090000 Function name: Subscriber Data Management Function description: The HLR provides subscriber data management functions, including Subscriber Definition, Subscriber Deletion, and IMSI Change, and so on. The following describes these functions.
Function description of HLR9820 V900R003C04
WHFD-090100 Function name: Basic Subscriber Data Management Function description: The HLR supports the following basic subscriber data management functions:
Define a single subscriber and define a template subscriber.
Delete a subscriber.
Change the SIM card for a subscriber.
Change the MSISDN number of a subscriber.
Provision/Cancel/Query a basic service.
Provision/Cancel/Register/Delete/Activate/Deactivate/Query a supplementary service.
Configure and query the ODB parameters of a subscriber.
Query the dynamic data of a subscriber.
WHFD-090101 Function name: Subscriber Definition Specifications: None. Overview: The HLR supports defining a single subscriber and a template subscriber. Function description: The HLR supports defining a common subscriber. Meanwhile, the HLR also supports defining a template subscriber, and provides up to 255 templates. Regardless of a common subscriber or a template subscriber, the parameters in the subscription template involve various services, such as call forwarding service, call barring service, and General Packet Radio Service (GPRS). Benefits:
Benefits for the carrier: The service enables the carrier to provide more convenient subscriber definition modes.
Benefits for the subscriber: None.
Function description of HLR9820 V900R003C04
Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090102 Function name: Subscriber Deletion Specifications: None Overview: The HLR supports deleting a subscriber. Function description: The HLR supports deleting a subscriber by deleting all data of the subscriber. It also supports deleting subscribers on batch basis. Benefits:
Benefits for the carrier: The service enables the carrier to provide a basic subscriber deletion function.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090103 Function name: IMSI Change Specifications: None. Overview: The HLR enables a subscriber to change his/her SIM card while keeping the MSISDN number unchanged. Function description: The HLR supports the IMSI Change service, allowing a subscriber to change his/her SIM card while keeping the MSISDN number and other subscription data unchanged
Function description of HLR9820 V900R003C04
Benefits:
Benefits for the carrier: The service enables the carrier to reduce the waste in subscriber number resources, maintains the stability of the subscribers as a whole, and cultivates the loyalty of the subscriber.
Benefits for the subscriber: When a subscriber's SIM card is lost or damaged, the subscriber can change his/her SIM card while keeping the MSISDN number and the subscription data unchanged. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090104 Function name: MSISDN Change Specifications: None Overview: The HLR enables a subscriber to change his/her MSISDN number without changing the SIM car. Function description: The HLR supports the MSISDN Change service, allowing a subscriber to change his/her MSISDN number while keeping the subscription data unchanged Benefits:
Benefits for the carrier: The service enables the carrier to maintain the stability of its subscribers.
Benefits for the subscriber: Sometimes, a subscriber intends to change his/her MSISDN number out of privacy reason or other security considerations. The service can well satisfy this requirement of the subscriber. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090105 Function name:
Function description of HLR9820 V900R003C04
Subscriber Number Query Specifications: None Overview: The HLR supports querying the MSISDN number of a subscriber. Function description: The HLR supports querying the MSISDN number of a subscriber. By inputting the subscriber's IMSI or the MSISDN (the subscriber has subscribed to multiple MSISDN numbers), you can query the subscriber's MSISDN number or the subscriber's other MSISDN numbers. Benefits:
Benefits for the carrier: The service enhances the subscriber maintenance capability.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-090106 Function name: Basic Service Setting and Query Specifications: None Overview: The HLR supports configuring and querying a basic service. Function description: The HLR supports configuring and querying a basic service, including Teleservices and bearer service (such as voice service and data service). Benefits:
Benefits for the carrier: The service enhances the subscriber maintenance capability.
Benefits for the subscriber:
Function description of HLR9820 V900R003C04
None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-090107 Function name: Dynamic Data Query Specifications: None Overview: The HLR supports querying a subscriber's dynamic information. Function description: The HLR supports querying the dynamic data of a subscriber, including:
The subscriber's roaming status in the CS domain or the PS domain
Number of the MSC/VLR of the subscriber
Domestic roaming or international roaming
CAMEL supporting capability of the MSC/VLR of the subscriber
Number and address of the SGSN of the subscriber
CAMEL supporting capability of the SGSN
Information on the short message center
Supported ODB attributes
Unsupported Service Replacement
Location Service (LCS) Benefits:
Benefits for the carrier: The service enhances the subscriber maintenance capability.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090200 Function name:
Function description of HLR9820 V900R003C04
Operator Authority Management Specifications: None. Overview: The HLR supports right/level based subscriber data management. Function description: The HLR defines various roles, allocates different rights to different roles, and allocates different roles to different operators to realize level-based operator management. Meanwhile, the rights can be managed based on number segments. Different number segments are allocated to different operators. An operator can only handle subscribers with numbers falling within the number segment allocated to the operator. Benefits:
Benefits for the carrier: The service enhances the subscriber maintenance capability.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-090300 Function name: Dynamic Subscriber Data Management Function description: The HLR supports the following dynamic subscriber data management functions:
Subscriber Location Modification (WHFD-090301). This function allows you to modify VLR number, MSC number, and SGSN number.
Unsupported Service Replacement (WHFD-090301). The HLR uses other supplementary services to replace services that are not supported by some network entities, including ODB, AoCC, and CUG. WHFD-090301 Function name: Subscriber Location Modification Specifications:
Function description of HLR9820 V900R003C04
None Overview: The HLR supports modifying the subscriber location information, including VLR number, MSC number, and SGSN number. Function description: The HLR allows you to modify the location information of a subscriber from the operation & maintenance terminal, including VLR number and MSC number. It can also force a subscriber online and insert subscription data, increasing the system maintainability. Benefits:
Benefits for the carrier: The service enhances the subscriber maintenance capability.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090302 Function name: Unsupported Service Replacement Specifications: None Overview: The HLR uses other supplementary services to replace services not supported by some network entities, including ODB, AoCC, and CUG. Function description: When the MSC/VLR receives unsupported service data, it returns a response to the HLR. Upon receiving the response message, the HLR processes the data or resends replacement services to the MSC/VLR according to the related configuration. Benefits:
Benefits for the carrier: This service enhances the network compatibility and configurability, and provides the carrier with additional means of data configuration.
Benefits for the subscriber: None.
Function description of HLR9820 V900R003C04
Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-090400 Function name: Service Template Setting Specifications: None Overview: The HLR supports configuring the common service templates (including subscriber definition template, CAMEL template, and VLR roaming restriction template) for higher operating efficiency. Function description: The HLR provides a series of templates for the subscription data. These templates include subscriber definition template and CAMEL template, and can be referenced repeatedly. The business hall of the carrier can provide some predefined templates. When a subscriber subscribes to a service, he/she only needs to reference the related template. This not only simplifies service subscription formalities, but also improves the operating efficiency. Benefits:
Benefits for the carrier: This service greatly simplifies service subscription formalities.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090500 Function name: Batch Operation Specifications: None. Overview: The HLR supports batch process functions, including:
Batch process of consecutive number segments
Batch process of non-consecutive number segments
Function description of HLR9820 V900R003C04
Batch process of files Function description: The HLR supports defining/deleting subscribers in batches by specifying the IMSI/MSISDN list file (namely batch process of non-consecutive number segments) or the starting IMSI/MSISDN number and subscriber quantity (namely batch process of consecutive number segments). Meanwhile, the HLR also supports file batch process. You can write all commands to be executed into a file, and the HLR can execute these commands automatically. Benefits:
Benefits for the carrier: This service simplifies the service subscription procedure and improves operating efficiency.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090600 Function name: Operation Log Management Specifications: None Overview: The HLR supports operation log management. An operation log clearly records all operations by an operator. The information in an operation log mainly includes time, IP address of the operated PC, and executed MML commands. The carrier can get to know the data operations conducted by an HLR operator. Function description: The HLR supports querying the historical commands executed by an operator. You can query the operation logs by operator, time range, or the associated subscriber number. An operator can only query the historical commands executed personally. This mechanism effectively protects the security of the information. Benefits:
Benefits for the carrier: This service provides the carrier with a means of checking and auditing historical commands.
Benefits for the subscriber: None. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-090800 Function name: Subscriber Statistics Specifications: None Overview: The HLR provides the subscriber statistics function, allowing you to collect statistics on the total subscribers and total roaming subscribers. Function description: The HLR supports collecting statistics on authentication data records, total subscribers, and roaming subscribers (for example, subscribers roaming under a specific VLR). It also supports generating IMSI/MSISDN file list. Benefits:
Benefits for the carrier: This service provides the carrier with a means of collecting statistics.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
1.2.9 Protocol Interfaces Function WHFD-100000 Function name: Protocol Interfaces Function description: The HLR supports MAP protocols and the related interfaces (including C, D, J, Gc, Gr, and Lh interfaces), as well as the BOSS interface.
Function description of HLR9820 V900R003C04
WHFD-100100 Function name: MAP Protocols Specifications: 3GPP29002 Overview: The HLR supports MAP Phase 2+ protocol, MAP Phase 2 protocol, and MAP Phase 1 protocol. Function description: The HLR supports MAP Phase 2+ protocol, MAP Phase 2 protocol, and MAP Phase 1 protocol. The HLR is forward compatible, and can be upgraded to a higher version smoothly. Benefits:
Benefits for the carrier: The service provides the carrier with additional service attributes and enables the smooth network evolution.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-100101 Function name: C/D/J/Gc/Gr/Lh Interface Specifications: 3GPP29002 Overview: The HLR supports the following interfaces:
C interface (the peer end entity is MSC)
D interface (the peer end entity is VLR)
J interface (the peer end entity is gsmSCF)
Gc interface (the peer end entity is GGSN)
Gr interface (the peer end entity is SGSN)
Lh interface (the peer end entity is GMLC)
Function description of HLR9820 V900R003C04
Supported protocols: MTP2/MTP3/SCCP/TCAP/MAP Function description: The HLR supports connecting to the interfaces of the surrounding NEs. See the figure below. BS BS BS BS BS BS BSC RNC SGSN GGSN MSC SCP HLR IP Network GSM/PSTN Iu Iu Gn Gi C/D CAP ISUP Gc Gr GMLC Lg Lh Lg Lc J
Benefits:
Benefits for the carrier: The service enables the carrier to satisfy the basic interface requirements.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-100200 Function name: BOSS Interface Specifications: None. Overview:
Function description of HLR9820 V900R003C04
The HLR provides the BOSS interface. Through the BOOS interface, the carrier can provide subscriber data management interfaces in the business hall, and realize second system development. Function description: Currently, the HLR supports the BOSS interface adopting the MML command format. Benefits:
Benefits for the carrier: The service enables the carrier to satisfy the basic interface requirements.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs.
WHFD-100300 Function name: Application/Data Layer Interface Specifications: None. Overview: The connection between the application layer and the data layer is bi-directional IP connection. The links between the application layer and data layer work in load sharing mode. Function description: The latest-generation HLR supports the separation of services from data. The service layer is also referred to as application layer. The connection between the application layer and the data layer is of IP connection. The design of the interfaces in the service layer and the data layer can be characterized as follows:
Adopts data access based design. The data interface is irrelevant to services. The design of the DS data layer interface has considered the ease in operating the data, and is irrelevant to the service. The interface supports both HLR application and CHLR and HSS application.
Provides message based asynchronous access mode. Supports separating services from data and incorporating multiple operations in a message into a transaction.
Function description of HLR9820 V900R003C04
The DS data layer interface is irrelevant to the service flow. Interaction of all types adopts the request response mode. The DS interface receives request messages and sends response message.
Enjoys excellent scalability. The newly-added function can be compatible with the original interface. Benefits:
Benefits for the carrier: The service can satisfy the carrier's requirements for smooth system upgrading and expansion.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. There is no special requirement for other NEs. 1.2.10 Operation and Maintenance Functions WHFD-110000 Function name: Operation and Maintenance Functions Specifications: None Overview: For the convenience of operation and maintenance, the HLR provides the following operation and maintenance functions:
Security management
Performance management
Fault management
Configuration management
Device management
Signaling interface tracing
WHFD-110100 Function name: Security Management Specifications:
Function description of HLR9820 V900R003C04
None. Overview: The HLR security management function allows you to assign operation rights to an operator or a workstation to prevent the system from being accessed by an illegal workstation and prevent an operator from executing unauthorized commands. The HLR assigns operation rights based on command groups. A command group is a set that organizes a series of commands together according to a certain rule. In the HLR, there are totally 32 command groups. Command groups 1031 are user defined; other command groups are default ones and cannot be modified. You can assign operation rights to an operator or a workstation by configuring command groups. The HLR provides level based management for operators and workstations. Different operators and workstations are allocated with different operation rights. This mechanism can prevent unauthorized operations and improve system security. Meanwhile, the HLR provides maintenance and operation logs for recording the operations and maintenance conducted by an operator. When problems occur, the operation logs can be used to check these operations and maintenance. Function description: 1. Right: It refers to the right of operating and managing the system. The assignment of rights to an operator or a workstation is based on command groups. 2. Operator: It refers to the person who manages or operates the system. The operators are graded into five levels, as shown in the table below.
Level Right Administrator View data, maintain the system, configure data, and manage users. Operator View data, maintain the system, and configure data. User View data and maintain the system. Guest View data. Custom The rights allocated by the administrator.
3. Command groups: A command group is a set that organizes a series of commands together according to a certain rule. There are totally 32 command groups in the system. The table below lists the categories of these command groups.
Function description of HLR9820 V900R003C04
Command group category Rights allocated to every member of the group Right of modifying commands G_ADMIN Only the Admin and administrator- level operator have the rights of the command group. The command group comprises all commands of the system.
It is prohibited to modify command names.
It is prohibited to add/delete a command to/from the command group. G_OPERATOR The administrator-level operator and operator-level operator have the rights of the command group.
It is prohibited to modify command names.
It is prohibited to add/delete a command to/from the command group. G_USER The administrator-level operator, operator-level operator, and user-level operator have rights of the command group.
It is prohibited to modify command names.
It is prohibited to add/delete a command to/from the command group. G_GUEST The rights of the command group are allocated to all operators. The guest- level operator has the rights of the command group only.
It is prohibited to modify command names.
It is prohibited to add/delete a command to/from the command group. G_0G_9 The Admin, administrator-level operator, and NMS operator have all rights of the command group. The custom-level operator has all or partial rights of the command group.
It is prohibited to modify command names.
It is prohibited to add/delete a command to/from the command group. G_10_31 The Admin, administrator-level operator, and NMS operator have all rights of the command group. The custom-level operator has all or partial rights of the command group.
It is allowed to modify command names.
It is allowed to add/delete a command to/from the command group.
The figure below shows the relationship between different command groups.
Function description of HLR9820 V900R003C04
G_OPERATOR G_USER G_GUEST G_ADMIN
4. Workstation: It refers to the PC that is connected to the BAM server and contains the BAM client programs. The HLR distinguishes different workstations by IP addresses. The assignment of rights to a workstation is based on command groups. The rights of workstation can be graded into four levels:
Level Rights G_Admin View data, maintain the system, configure data, and manage users. G_Operator View data, maintain the system, and configure data. G_User View data and maintain the system. G_Guest View data.
5. Ultimate rights of an operator: The ultimate rights of an operator are the intersection of the rights allocated to the operator and the rights of the workstation operated by the operator. For example, the workstation has the rights of command groups G_0 and G_1; the operator has the rights of the command groups G_1 and G_2. Consequently, the operator can only execute commands of the command group G_1 in the workstation.
Benefits:
Benefits for the carrier: The service provides a perfect system right control mechanism. The carrier can control the access of the system by both workstations and operators, making daily operation and maintenance very flexible and safe.
Benefits for the subscriber: None.
Function description of HLR9820 V900R003C04
Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-110200 Function name Performance Management Specifications: None. Overview: Performance management refers to the activities of measuring the performance of a device and its surrounding network, involving traffics measurement, system resource measurement, signaling procedure measurement, and failure cause measurement. In the HLR, the performance measurement involves system resource measurement and signaling procedure measurement. In addition to the basic measurement items, the performance measurement function of the HLR allows you to define new measurement items on the basis of the original measurement items. You can collect the desired measurement data conveniently, and observe the running status of the network flexibly. Function description: The table below lists the measurement items supported by the HLR. Measurement category Measurement items Global component measurement CPU occupancy measurement CPU measurement MAP measurement SUB measurement 3GSCS measurement 3GSWB measurement 3GSWC measurement 3GSWCS measurement 3GSWG measurement 3GSWL measurement WCDMA HDU measurement 3GSWLK measurement
Function description of HLR9820 V900R003C04
3GSWO measurement 3GSWOS measurement 3GSWR measurement 2GSWG measurement 2GSWC measurement 2GSCS measurement 2GSWCS measurement 2GSWL measurement 2GSWLK measurement 2GSWO measurement 2GSWOS measurement 2GSWR measurement M3UA link traffics measurement M3UA link set traffics measurement M3UA destination entity measurement. M3UA signaling link measurement MTP3B signaling link measurement MTP3B signaling link set measurement MTP3B destination signaling point measurement MTP destination signaling point measurement MTP signaling link measurement MTP signaling link measurement SAAL signaling measurement SCCP availability measurement SCCP utilization rate measurement SCCP performance measurement TCAP CSL performance measurement TCAP TSL performance measurement TCAP availability measurement Signaling and interface measurement TCAP messages count
Function description of HLR9820 V900R003C04
TCAP utilization rate measurement
Benefits:
Benefits for the carrier: The service enables the carrier to implement various traffic measurement tasks, monitor the running status of the equipment, and optimize the network.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-110300 Function name: Fault Management Specifications: None Overview: The HLR provides alarm information output. It can report abnormality occurring during its operation process. The output alarms can be classified into alarms outputted to the alarm maintenance terminal and the alarms outputted to the alarm box. Function description: The HLR provides two types of alarms: fault alarms and event alarms. Generally, the fault alarm is more serious than the event alarm. The fault alarm involves alarm generation and alarm recovery. The event alarm is generated due to an occasional event occurring during the running process of the equipment. The event alarm does not involve recovery. Some event alarms recur at a specified time. The HLR provides the following powerful alarm management functions. 1. You can query alarm information at any time, and specify the alarm level, alarm type, alarm time for an alarm to facilitate alarm query. 2. For the convenience of comprehension, every alarm contains a piece of explanatory information. 3. You can enable/disable alarm shielding manually. 4. The HLR provides an alarm box. When an alarm is reported, the alarm box generates siren to remind the maintenance personnel. Benefits:
Function description of HLR9820 V900R003C04
Benefits for the carrier: The service enables the carrier to get to know the problems in the HLR, and take preventive measures accordingly.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-110400 Function name: Configuration Management Specifications: None Overview: The HLR provides configuration management function, allowing you to configure the system, a board, and an interface. Function description: The HLR provides flexible data configuration functions, allowing you to configure data online and offline. Meanwhile, the HLR supports configuring the data through the MML. You can produce data configuration scripts conveniently, thus reducing configuration difficulties. Benefits:
Benefits for the carrier: The service enables the carrier to configure the data of the HLR flexibly and satisfy various data configuration requirements.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-110500 Function name: Equipment Management Specifications:
Function description of HLR9820 V900R003C04
None Overview: The HLR provides equipment management function, allowing you to manage the software and hardware of the equipment conveniently. Function description: The hardware management involves:
Resetting a board
Switching a board
Loading data to a board
Other related functions Software management involves:
Loading patches
Activating patches
Deactivating patches
Other related functions Benefits:
Benefits for the carrier: The service enables the carrier to manage the HLR conveniently and satisfy the daily operation requirements.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-110600 Function name: Signaling Tracing Specifications: None Overview: The HLR provides powerful signaling tracing functions, including interface signaling tracing and subscriber interface signaling tracing. WHFD-110601 Function name:
Function description of HLR9820 V900R003C04
Interface Signaling Tracing Specifications: None Overview: The service enables you to trace the signaling of the SCCP/MTP/MAP interface, and save the tracing results in a file. Function description: The interface signaling tracing involves:
Tracing the signaling of the Signaling Connection and Control Part (SCCP) interface, Signaling Control Transmission Protocol (SCTP) interface, MTP3- User Adaptation Layer (M3UA) interface, and Message Transfer Part Layer 3 (MTP3) interface.
Tracing the Mobile Application Part (MAP) signaling message of the C/D/Gc/Gr/Lh/J interface After the tracing finishes, you can view the file with the traced messages. The HLR provides explanations for the message in line with standard protocols, allowing you to read the message code stream conveniently. Benefits:
Benefits for the carrier: The service enables the carrier to trace all messages of an interface. When locating equipment interconnection fault or interface fault, it can check protocol compliance of messages through the service.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-110602 Function name: Subscriber Signaling Tracing Specifications: None. Overview: The service enables you to create a subscriber interface tracing task by IMSI/MISDN, that is, to trace the signaling of a specified interface of a specified subscriber. You can obtain online explanations for the traced messages and save them in a file. Function description:
Function description of HLR9820 V900R003C04
You can trace the signaling messages of a subscriber at the C/D/Gc/Gr/Lh/J interface. After the tracing finishes, you can view the file with the traced messages. The HLR provides explanations for the message in line with standard protocols, allowing you to read the message code stream conveniently. Benefits:
Benefits for the carrier: The service enables the carrier to find causes of the problems in the services of a subscriber.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. 1.2.11 Reliability Functions WHFD-120000 Function name: Reliability Functions Specifications: None. Overview: The reliability design of the HLR involves hardware reliability design and software reliability design. WHFD-120100 Function name: Hardware Reliability Specifications: None Overview: The hardware reliability design of the HLR includes redundancy & backup design and power supply reliability design. WHFD-120101 Function name:
Function description of HLR9820 V900R003C04
Redundancy and Backup Design Specifications: None Overview: The HLR adopts redundancy & backup design. It adopts redundancy design for key components. In the databases, it adopts perfect backup mechanism to ensure the security of the subscriber data. Function description: The HLR adopts the following redundancy & backup technologies:
Adopts system-level multi-processors and step-by-step processing technology.
Adopts hot backup for hardware of important boards.
Adopts dual-network dual-plane (V9: multi-node cluster) technology for the databases to realize real-time data backup and avoid single-point fault. Benefits:
Benefits for the carrier: The service can enhance the system reliability and ensure uninterrupted service provisioning.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-120102 Function name: Power Reliability Specifications: None Overview: Faults in the power supply may result in a disaster. The HLR adopts high- reliability design for the power supply system. Function description: The HLR adopts the following technologies to ensure the high reliability of the power supply system:
Function description of HLR9820 V900R003C04
Checks the input voltage of the power system, and generates an alarm when the voltage of the power system is too high or too low.
Prevents voltage drop and is lightning-proof.
Provides power-off protection for programs and data.
Provides over-voltage protection, over-current protection, and wrong polarity connection.
Provides backup for the power module of the board.
Benefits:
Benefits for the carrier: The service enables the carrier to enhance the system reliability, ensure uninterrupted service provisioning, and improve the customer's satisfaction level.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-120200 Function name: Software Reliability Specifications: None Overview: The HLR adopts the following high-reliability designs for its software:
Automatic fault detection and self-healing capability
Automatic switchover or manual switchover
Subscriber data automatic/multi-level backup
Flow control
System restoration upon upgrade failure
WHFD-120201 Function name: Automatic Fault Detection and Self-Healing Specifications: None
Function description of HLR9820 V900R003C04
Overview: The HLR adopts real-time fault monitoring and self-healing designs to ensure the reliability of its software. Function description: The HLR applies the real-time fault monitoring and self-healing technologies on the following occasions:
Automatic detection of hardware/software faults.
Automatic execution of the fault handling program to remove faults in important hardware or software
Implementation of automatic switchover if the fault cannot be removed. The backup system takes over the tasks of the faulty hardware and software, without affecting the services. Benefits:
Benefits for the carrier: The service enables the carrier to enhance the system reliability, ensure uninterrupted service provisioning, and improve the customer's satisfaction level.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-120202 Function name: Automatic/Manual Switchover Specifications: None. Overview: When the active system of the HLR is faulty, the HLR can automatically switch to the standby system. The HLR supports both automatic switchover and manual switchover. Function description: When the active signaling access board of the HLR is broken down, the HLR can automatically switches to the standby board. On some special occasions (such as network upgrading), you switch from the active system to the standby system manually. The HLR database unit of V6 consists of two hosts. When the active host is faulty and the fault cannot be removed, the HLR switches to the standby host automatically. Adopting redundancy design, the HLR enjoys high reliability, and ensures the interests of the carrier. On some special occasions (such as network upgrading), you switch from the active system to the standby system manually.
Function description of HLR9820 V900R003C04
The ATCA boards of V9 version work in load-sharing mode, and do not involve switchover. Benefits:
Benefits for the carrier: The service enables the carrier to enhance the system reliability, ensure uninterrupted service provisioning, and improve the customer's satisfaction level.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-120203 Function name: Subscriber Data Automatic/Multi-Level Backup Specifications: None. Overview: A core function of the HLR is to store a large quantity of subscriber data, which are very important to the carrier. The HLR provides automatic/multi-level backup mechanism to ensure the security of the subscriber data. When accidents take place, the subscriber data can be recovered immediately. Function description: The HLR adopts the following measures to ensure the security of important data: 1. Automatic backup: The HLR supports automatic backup of important subscriber data and information at a specified time. (V6) 2. Multi-level backup mechanism
Back up data to other area of the same disk.
Back up the data to the disk array.
Back up data to an external magnetic tape. The HLR ensures the reliability of the data through multi-level backup mechanism. 3. Manual data backup. You can back up the data at any time. (V9) 4. The HLR provides powerful 3-level data backup and recovery functions. Every function is applied in different occasion and has effectively protected the security of the system.
Duplicate the IMDB data in the master node and the slave node under the same cluster.
Function description of HLR9820 V900R003C04
Back up the IMDB data from a node of the cluster to the local disk through snapshot duplication.
Back up data in the IMDB of the master node to the physical database DBMS to realize data synchronization. Accordingly, there are three means to realize the data recovery:
Recover the data by duplicating data from the master node.
Recover data from the snapshot file in the local disk.
Recover data from the physical database. Benefits:
Benefits for the carrier: This service can enhance the system reliability. It provides multiple data backup functions to ensure the security of subscriber data. When accidents take place, the service can recover the subscriber data immediately to avoid further loss.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-120204 Function name: Flow Control Specifications: None Overview: The HLR provides the flow control function. When the traffics volume exceeds the upper threshold of the processing capability of the HLR, the service can prevent the large quantity of messages received by the HLR from interrupting the service. Function description: If the HLR enables its flow control mechanism, when congestion occurs due to excessive messages, the HLR discards a portion of message. In this way, it can ensure the successful transmission of messages falling within its processing capacity. Consequently, the services can be provisioned for most subscribers normally, and the avalanche effect can be prevented. Adopting perfect traffic control design, the HLR9820 can effectively process burst heavy traffics. 5. Applies multi-level traffic control to the C/D/J/Gr/Gc interface to realize smooth traffic volume adjustment.
Function description of HLR9820 V900R003C04
6. Detects and checks the payload handling efficiency and resource utilization rate of the processor in real-time to realize auto-adapted flow control. 7. Allows flexible configuration of flow control parameters to realize forced flow control. 8. Applies the flow control to the subscriber data management and MAP operations separately. The priority of the MAP operation is higher than that of the subscriber data management. Benefits: Benefits for the carrier: The service enables the carrier to enhance the system reliability, avoid service interruption resulting from heavy burst traffics, and prevent the avalanche effect. Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-120205 Function name: System Restoration Upon Upgrade Failure Specifications: None Overview: When upgrading fails due to exceptions, the HLR supports quick rollback to the original version. This can prevent the upgrading failure from affecting the services too long. Function description: To prevent upgrading failure, the HLR provides the version rollback function. This function is a system assurance mechanism. It can restore the subscriber data and version to the initial status, and minimize the impact of the upgrading failure. Benefits:
Benefits for the carrier: The service provides the carrier with an assurance measure against upgrading failure. Once the upgrading fails, the service can rollback the subscriber data and version to the initial status to protect the system against the failure.
Benefits for the subscriber: None. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The HLR realizes the function internally. There is no special requirement for other NEs. 1.2.12 Authentication Functions WHFD-130000 Function name: Authentication Functions Specifications: 3GPP29002 Overview: The authentication function is defined according to a protocol, and is accomplished by the Authentication Centre (AUC). Incorporating the AUC function, the HLR supports 2G and 3GPP standard authentication flows and the respective authentication encryption algorithms. WHFD-571400 Function name: Quintuplet to Triplet Conversion Specifications: 3GPP29002, 3GPP33102 Overview: When a subscriber holding the USIM card roams to the GSM network, the HLR converts the calculated authentication quintuples into authentication triplets, and sends them to the VLR/SGSN. Function description: In the GSM network, the MSC/VLR performs subscriber authentication based on authentication triplets. When a subscriber holding the USIM card roams in the GSM network, the MSC/VLR sends an authentication request to the HLR (AUC). The HLR generates authentication quintuples according to the information saved in the USIM card, and sends them to the MSC/VLR. If the MSC/VLR cannot process them, the authentication fails. In this case, the HLR (AUC) converts the authentication quintuples into authentication triplets, and sends them to the MSC/VLR. In this way, it can ensure that the 3G subscriber can pass the authentication, and roam in 2G network successfully. Benefits:
Benefits for the carrier: The service solves the problem that a 3G subscriber cannot pass the authentication of a 2G network due to different authentication algorithms adopted by the 3G network and the 2G network. Therefore, the service not only protects the network
Function description of HLR9820 V900R003C04
security but also allows a 3G subscriber to roam in a 2G network, well protecting the investment of the carrier in the 2G network.
Benefits for the subscriber: The service allows a 3G subscriber to roam to a 2G network and ensures smooth and safe voice conversation. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-571500 Function name: KI Encrypted KI Specifications: None Overview: The HLR uses K4 as the key, and encrypts/decrypts KI data through the DES algorithm. The subscriber can select different K4 for encrypting the KI. The HLR stores the encrypted KI data in its database. Function description: The HLR supports the encrypted KI data. Out of consideration of security, the KI data is encrypted during its transfer from the card manufacturer to the carrier. The HLR supports loading the encrypted KI data directly and storing the encrypted KI in the database. Meanwhile, the key is also encrypted to ensure the security of the KI data. The supported encryption algorithm is the DES algorithm. Benefits:
Benefits for the carrier: The service can protect the security of the KI data. A person cannot obtain the real KI data even though he can access the HLR database. Therefore, the service can prevent theft of cards.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-571501 Function name: DES Algorithm
Function description of HLR9820 V900R003C04
Specifications: None Overview: The DES is a symmetrical encryption algorithm, and was invented by IBM in 70s of last century. Currently, it has been widely applied in every field. Function description: The key of the DES algorithm is 56 bits long (or 64 bits long if the parity check bits are considered). The DES is a group based encryption algorithm. It allocates every 64 bits to a group, and adopts standard arithmetic and logical operations. The HLR uses K4 as the key, and encrypts/decrypts KI data through the DES algorithm. Benefits:
Benefits for the carrier: The security of the DES algorithm is very high. Without the key, it is very difficult to decrypt the KI data. Therefore, the DES can effectively protect the KI data, and ensure the security of the subscriber's authentication data.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-571000 Function name: COMP128-1 Algorithm Specifications: 3GPP29002 Overview: The HLR supports the COMP128-1 algorithm. Function description: The COMP128-1 is a standard algorithm that realizes the A3 algorithm and the A8 algorithm. The A3 algorithm is also referred to as the authentication algorithm. It calculates the SRES based on the RAND generated by the HLR/AuC and the authentication key Ki of the SIM card. The SRES is used to identify a mobile subscriber. The A8 algorithm is also referred to as encryption key generator. It calculates the encryption key Kc based on the RAND and Ki. The A5 algorithm uses Kc as the key and is used to encrypt the signaling data and subscriber data transmitted over encrypted channels. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service provides basic authentication algorithm to satisfy basic network authentication requirements.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-571100 Function name: COMP128-2 Algorithm Specifications: 3GPP29002 Overview: The HLR supports the COMP128-2 algorithm. Function description: The HLR supports the COMP128-2 algorithm. The COMP128-2 is a standard algorithm that realizes the A3 algorithm and the A8 algorithm. The A3 algorithm is also referred to as the authentication algorithm. It calculates the SRES based on the RAND generated by the HLR/AuC and the authentication key Ki of the SIM card. The SRES is used to identify a mobile subscriber. The A8 algorithm is also referred to as encryption key generator. It calculates the encryption key Kc based on the RAND and Ki. The A5 algorithm uses Kc as the key and is used to encrypt the signaling data and subscriber data transmitted over encrypted channels. Benefits:
Benefits for the carrier: The COMP128-1 is widely applied in the GSM. Therefore, the security of the GSM network is not well protected. In comparison, the COMP128-2 algorithm is more competitive, and can well protect the authentication security.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-571200 Function name: COMP128-3 Algorithm Specifications: 3GPP29002
Function description of HLR9820 V900R003C04
Overview: The HLR supports the COMP128-3 algorithm. Function description: The COMP128-3 is a standard algorithm that realizes the A3 algorithm and the A8 algorithm. The A3 algorithm is also referred to as the authentication algorithm. It calculates the SRES based on the RAND generated by the HLR/AuC and the authentication key Ki of the SIM card. The SRES is used to identify a mobile subscriber. The A8 algorithm is also referred to as encryption key generator. It calculates the encryption key Kc based on the RAND and Ki. The A5 algorithm uses Kc as the key and is used to encrypt the signaling data and subscriber data transmitted over encrypted channels. Benefits:
Benefits for the carrier: Compared with COMP128-2, the COMP128-3 algorithm can better protect the security of authentication security.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-571300 Function name: Milenage Algorithm Specifications: 3GPP29002, 3GPP35205, 3GPP35206 Overview: The HLR supports the 3G Milenage authentication algorithm. Function description: The Milenage authentication algorithm is a 3G network authentication algorithm. The USIM card supports the Milenage authentication algorithm only. Benefits:
Benefits for the carrier: The service can satisfy the requirements of 3G MS/network for authentication algorithms.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
Function description of HLR9820 V900R003C04
WHFD-571400 Function name: G-Milenage Algorithm Specifications: 3GPP29002, 3GPP35205, 3GPP35206 Overview: The HLR supports the G-Milenage authentication algorithm. The G-Milenage algorithm is the Milenage algorithm applied in the GSM network. Function description: The G-Milenage is a GSM network authentication algorithm. The SIM card supports the G-Milenage authentication algorithm. The G-Milenage algorithm differs from the Milenage algorithm in that the G-Milenage outputs the calculation results in authentication triplets, that is, it converts the quintuples into triplets. While the Milenage algorithm outputs the calculation results in authentication quintuples. Benefits:
Benefits for the carrier: The service can satisfy the requirements of 2G MS/network for authentication algorithms. It supports multiple authentication algorithms.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
1.2.13 CS Data Services WHFD-510000 Function name: CS Data Services Specifications: 3GPP29002 Overview: The HLR supports all standard data services, including the FAX service, data CDA service, data CDS service, PAD service (CA), data PDS service, voice and data alternation service, and voice + data service. Function description: 1. FAX service
Function description of HLR9820 V900R003C04
The HLR supports two types of FAX services:
Voice + G3 FAX (TS 61) service
Automatic G3 FAX (TS 62) service 2. Data CDA service
Asynchronous duplex circuit data service working at 300bit/s (BS21), 1200bit/s (BS22), 1200/75bit/s (BS23), 2400bit/s (BS24), 4800bit/s (BS25), and 9600bit/s (BS26)
Transparent/Non-transparent 3.1 kHz audio VF/UDI data service 3. Data CDS service Packet access, synchronous non-transparent 3.1K AF /UDI working at 1200 bits/s (BS31), 2400 bits/s (BS32), 4800 bits/s (BS33), and 9600 bits/s (BS34). 4. PAD (CA) service PAD access, circuit asynchronous transparent/non-transparent 3.1k audio/UDI working at 300 bits/s (BS41), 1200 bits/s (BS42), 1200/75 bits/s (BS43), 2400 bits/s (BS44), 4800 bits/s (BS45), and 9600 bits/s (BS46). 5. Data PDS service Packet access, synchronous, UDI, non-transparent PDS service working at 2.4k bits/s (BS51), 4.8k bits/s (BS52), and 9.6k bits/s (BS53). 6. Voice and data alternation service The HLR supports voice and data alternation service (BS61). 7. Voice + data service The HLR supports the data service that consists of voice service + data service (BS81). 8. UMTS bearer service The HLR supports asynchronous bearer service (BS20) and synchronous bearer service (BS30). Benefits:
Benefits for the carrier: The service enables the carrier to provide diversified data services, satisfy the requirements of telecommunication markets, and boost its competitiveness.
Benefits for the subscriber: The service enables the subscriber to subscribe to the data service and obtain various information resources. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. 1.2.14 GPRS Services WHFD-520000 Function name: GPRS Services
Function description of HLR9820 V900R003C04
Specifications: 3GPP29002, 3GPP22060, 3GPP23060, 3GPP29061 Overview: The General Packet Radio Service (GPRS) is developed on the basis of the existing GSM system. The GPRS adopts packet switching functional entities in the GSM network to realize transmission of packet data. The GPRS system, the expansion of the GSM circuit switching system, enables the mobile subscriber to access the Internet or other packet data networks from his/her packet data mobile terminal. The GPRS service accomplishes packet data functions through additional functional entities (GGSN and SGSN) deployed in the GSM network. The additional functional entities comprise the GSM-GPRS network. Function description: The GPRS service accomplishes packet data functions through additional functional entities deployed in the GSM network. The additional functional entities comprise the GSM-GPRS network, provide bypass for the data, and implement the GPRS service. The original GSM network accomplishes the voice function. The GPRS service is realized without too many changes to the GSM network. The GPRS system consists of two network functional entities: GGSN and SGSN. The GGSN functions in a way similar to the GMSC; the SGSN functions in a way similar to the MSC/VLR. The HLR provides the Gc/Gr interfaces, and supports GPRS attachment, obtaining routing information, performing authentication, generating authentication failure reports, short messages function, and tracing/querying messages over an interface. The GPRS is mainly applied to realize E-mail service, WWW browsing, WAP service, e-commerce, information query, and remote monitor. The HLR allows the subscriber to subscribe to the network access modes of GSM and GPRS, or both of them. The HLR GPRS service supports:
Flexible billing for the GPRS service
QoS of the GPRS (Ext-QOS)
Dynamic PDP address
Static PDP address (IPv4, IPv6, and X.25)
GPRS MO/MT short message service
Restriction of GPRS subscriber from accessing the GPS network In comparison to the 2.5G GPRS, the UMTS GPRS supports the expanded QoS attribute and the PDP accounting attributes, and provides more powerful and excellent network services. Benefits:
Benefits for the carrier: The service enables the carrier to realize the network functions of the GSM, GPRS, and UMTS through the HLR, thus saving the investment of the carrier.
Benefits for the subscriber:
Function description of HLR9820 V900R003C04
The GPRS service enables the subscriber to roam in the Internet, send E-mails, browse the WWW webs, enjoy e-commerce, and conduct remote monitoring. Since the service charge is based on traffic volume, the subscriber does not need to consider the duration of enjoying the service, and can remain online all the time. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol in cooperation with the GGSN/SGSN. But there is no special requirement for these NEs. 1.2.15 Supplementary Services WHFD-030000 Function name: Supplementary Services Specifications: 3GPP29002 Overview: The following introduces the supplementary services of the optional functions, including: 1. Call Waiting/Call Hold (CW/CH) 2. Multi Party (MPTY) 3. Unstructured Supplementary Service Data (USSD) 4. Closed User Group (CUG) WHFD-030400 Function name: Call Waiting/Call Hold (CW/CH) Specifications: 3GPP29002, 3GPP22083, 3GPP23083, 3GPP24083 Overview: The CW service allows a mobile subscriber in conversation status to establish a call connection to another incoming call. The CW service allows a mobile subscriber to suspend the current conversation and receive another incoming call. Function description: In the case of CW, the network reminds the subscriber of another incoming call, and requests the subscriber to answer the call. The subscriber can make a decision on whether to answer the call. In the case of CH, the subscriber can establish a call connection to the second call, and switch between the first call and the second call. The first call is in hold-on status.
Function description of HLR9820 V900R003C04
The CW and CH function only when they are applied together. Therefore, the subscriber must subscribe to the CW and CH services in the HLR simultaneously. When a subscriber in conversation needs to receive a new call, the subscriber must support the CW. After the connection to the new call is established, the subscriber needs to hold the first call so that he/she can switch between the first call and the second call. Benefits:
Benefits for the carrier: The service can enhance the service provisioning capability of the carrier, and attract the more subscribers. Meanwhile, the service can improve call completion rate, and improve traffic volume.
Benefits for the subscriber: The service can establish a call connection to a subscriber when the subscriber is busy. It can improve the satisfaction level of the subscribers, especially high-end subscribers and business subscribers. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-030500 Function name: Multi Party (MPTY) Specifications: 3GPP29002, 3GPP22084, 3GPP23084, 3GPP24084 Overview: A subscriber who has subscribed to the service can hold a telephone meeting for multiple subscribers (including mobile subscribers). The participants of the meeting can talk with each other. The MPTY service allows up to six subscribers to talk with each other simultaneously. In MPTY, the controlling subscriber can add a remote subscriber to the meeting, disconnect a remote subscriber, and isolate a remote subscriber (the remote subscriber holds on the call with the controlling subscriber, but cannot talk with other subscribers of the MPTY). Function description: The MPTY enables a subscriber to establish call connections with multiple subscribers. In other words, the subscriber can talk with three or more subscribers simultaneously. The MPTY service of Huawei's MSC allows up to 6 subscribers to participate a meeting. When a subscriber of the service has to deal with an activated call and a held call and has answered the two calls, the subscriber can combine the two calls into a MPTY call through the MPTY service, and then talk with the other two subscribers. The subscriber of the MPTY service can:
Hold the MPTY call, and resume the MPTY call later on.
Initiate a new call while holding the MPTY call.
Function description of HLR9820 V900R003C04
Handle an MPTY call and a single call alternatively, or add the single call to the MPTY call.
Establish a private call connection with a remote subscriber. The call connection is separated from the meeting.
Disconnect a remote subscriber.
Release the MPTY call. Enhanced function description: Before subscribing to the MPTY service, the subscriber must have subscribed to the CH service. Benefits:
Benefits for the carrier: The service can enhance the service provisioning capability of the carrier, and attract the more subscribers. It provides a simple telephone meeting solution for the business subscriber.
Benefits for the subscriber: The service allows multiple subscribers to talk with each other. The service allows the business subscriber to hold a simple telephone meeting. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-030600 Function name: Unstructured Supplementary Service Data (USSD) Specifications: 3GPP29002, 3GPP24090 Overview: The USSD service allows a subscriber to input USSD format compliant non- standard supplementary service operation commands in the MS to initiate service requests to the network. The USSD service also allows the network to send USSD commands to the MS to implement a service. Function description: Compared with the short message service, the USSD service realizes real-time short message exchange. It is suitable to stock exchange information query. Currently, the HLR supports USSD service of version 1 and version 2. Benefits:
Benefits for the carrier: The service enables the carrier to provide many value-added services, such as information on stock exchange, lottery, weather forecast, and air freights, thus attracting more subscribers.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: The service can satisfy the subscriber's requirements for information in many aspects, such as lottery information and stock exchange. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. The HLR must cooperate with the SCP (or the USSD center) and the VMSC. WHFD-030700 Function name: Closed User Group (CUG) Specifications: 3GPP29002, 3GPP22085, 3GPP23085, 3GPP24085 Overview: A Closed User Group (CUG) can be set up for one or several subscribers with the identical attributes. Members of the CUG share the same call attributes. The CUG can be a small group consisting of few members or a large-sized enterprise boasting thousands of subscribers. Function description: The CUG service allows a subscriber connecting to a PLMN or other networks to set up a CUG. The incoming/outgoing calls into/from the CUG are subject to restriction. A subscriber can become the member of one or multiple CUGs. The member of a CUG can communicate with other members within the CUG, but are generally prohibited from communicating with subscribers outside the CUG. The following describes the attributes of the CUG: CUG index: Allocated by the network, it is intended to identify a CUG, and is used by the MS. CUG Interlock Code (IC): It is intended to identify the relationship between members of the GUG, and is used by the network rather than the MS. Preferential CUG: When the CUG index is unavailable, the preferential CUG is used as the default CUG index. Inter-group incoming call permitted: Subscribers with this attribute are allowed to receive incoming calls from subscribers outside the CGU. Inter-group outgoing call permitted: Subscribers with this attribute are allowed to initiate calls to subscribers outside the CGU. Intra-group incoming call prohibited: Subscribers with this attribute are prohibited from receiving incoming calls from other members within the CGU, but are allowed to initiate calls to other subscribers within the CGU. Intra-group outgoing call prohibited: Subscribers with this attribute are prohibited from initiating calls to other subscribers within the CGU, but are allowed to receive incoming calls from other members within the CGU. CUG call: It refers to the call initiated by a member of a CUG. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service can enhance the service provisioning capability of the carrier, and attract the enterprise subscribers.
Benefits for the subscriber: The subscribers within the CGU can enjoy flexible call rates. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for the MSC/VLR. 1.2.16 CAMEL Services WHFD-530000 Function name: Customized Applications for Mobile network Enhanced Logic (CAMEL) Services Specifications: 3GPP29002, 3GPP22078, 3GPP23078, 3GPP29078 Overview: The CAMEL is an intelligent network solution based on the GSM/WCDMA protocol stack. The CAMEL provides a mechanism that enables the WCDMA network to provide services independently from the service network. The carrier can control the self- defined services outside the service network. The CAMEL is not a new supplementary service, but must be viewed as a network attribute. Through the mobile network with the CAMEL attribute, the carrier can provide self-defined services for the subscriber, even though the subscriber may be outside the home network. The development of the CAMEL experiences four phases: 1. CAMEL phase 1: 2. CAMEL phase 2: 3. CAMEL phase 3: 4. CAMEL phase 4 In the four phases, the CAMEL has different application scopes: 5. CAMEL phase 1: The CAMEL attribute is applied to services related to MO/MT calls. 6. CAMEL phase 2: The CAMEL attribute is applied to services related to the utilization of supplementation services. 7. CAMEL Phase 3: The CAMEL attribute is applied in SMS MO, GPRS sessions, PDP context, HLR subscriber data control, and network signaling traffics. 8. CAMEL phase 4: The CAMEL attribute is applied in the SMS MT service. The CAMEL service of higher version encompasses the subscription data of lower version. The HLR supports the four CAMEL versions.
Function description of HLR9820 V900R003C04
WHFD-530100 Function name: CAMEL Phase 2 Services Specifications: 3GPP29002, 3GPP23078 Overview: The CAMEL is a network attribute, and is incorporated into the GSM and IN network entities. When a subscriber of the CAMEL service roams or serves as the callee, the data of the CAMEL service is transmitted between the HPLMN and the VPLMN to trigger the IN services of the subscriber. Function description: The HLR supports the following CAMEL related functions:
Supports J interface for connection with the gsmSCF function entity.
Supports CAMEL Phase 1 and CAMEL Phase 2.
Supports subscribing to O-CSI, T-CSI, SS-CSI, and TIF-CSI data.
Enables the CAMEL subscriber who has subscribed to the U-CSI/UG-CSI to interact with the HLR in the USSD mode.
Provides subscription items that specify actions to be taken by the HLR if the NEs do not support the CAMEL.
The implementation of the CAMEL service necessitates the supports from the network entities at the side of the IN network, including SSP, SCP, and SCF. The intelligent subscription items of CAMEL Phase 2 include: 1. O-CSI (WHFD-530101) 2. T-CSI (WHFD-530102) 3. SS-CSI (WHFD-530103) 4. TIF-CSI (WHFD-530104) 5. U-CSI (WHFD-530105) 6. UG-CSI (WHFD-530106) Benefits: 7. Benefits for the carrier: The HLR supporting the CAMEL service allows the subscriber to subscribe to the IN service immediately, and makes IN service configuration more flexible. The CAMEL service enables the carrier to add new services and new attributes more flexibly and conveniently. Meanwhile, the carrier can utilize the attributes of the exiting IN network (familiarity number, pre-payment, and message station service), and reduce the subsequent investment in equipment. 8. Benefits for the subscriber: The subscriber can enjoy various IN services provided by the HLR, for example, familiarity number, message station service, and advice of charge. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-530200 Function name: CAMEL Phase 3 Services Specifications: 3GPP29002, 3GPP23078 Overview: The HLR supports CAMEL Phase 3 service. Function description: In addition to the attributes of CAMEL Phase 2, CAMEL Phase 3 service supports:
O-CSI (WHFD-530201)
T-CSI (WHFD-530202)
SS-CSI (WHFD-530203)
TIF-CSI (WHFD-530204)
U-CSI (WHFD-530205)
UG-CSI (WHFD-530206)
GPRS-CSI (WHFD-530207)
SMS-CSI (WHFD-530208)
D-CSI (WHFD-530209)
M-CSI (WHFD-530210)
VT-CSI (WHFD-530211) Benefits:
Benefits for the carrier: The CAMEL service enables the subscriber to subscribe to the IN service immediately. Utilizing the flexible service configuration methods of the IN network, the CAMEL service allows the carrier to add new services and new attributes more flexibly and conveniently. Meanwhile, the carrier can utilize the attributes of the IN network (familiarity number, pre-payment, and message station service), and reduce the subsequent investment in equipment.
Benefits for the subscriber: The subscriber can enjoy various IN services provided by the HLR, for example, familiarity number, message station service, and advice of charge. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-530300 Function name: CAMEL Phase 4 Services
Function description of HLR9820 V900R003C04
Specifications: 3GPP29002, 3GPP29078 Overview: The HLR support CAMEL Phase 4 service. Function description: In addition to the attributes of CAMEL Phase 3, CAMEL Phase 4 service supports: 1. MO-SMS-CSI (WHFD-530301) 2. MT-SMS-CSI (WHFD-530302) Benefits:
Benefits for the carrier: The CAMEL service enables the subscriber to subscribe to the IN service immediately. Utilizing the flexible service configuration methods of the IN network, the CAMEL service allows the carrier to add new services and new attributes more flexibly and conveniently. Meanwhile, the carrier can utilize the attributes of the IN network (familiarity number, pre-payment, and message station service), and reduce the subsequent investment in equipment.
Benefits for the subscriber: The subscriber can enjoy various IN services provided by the HLR, for example, familiarity number, message station service, and advice of charge. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
1.2.17 Location Services (LCS) WHFD-540000 Function name: Location Services (LCS) Specifications: 3GPP22071, 3GPP23171, 3GPP24030, 3GPP25305, 3GPP25923, GPP29002 Overview: The LCS service is a GSM standard compliant service. It functions independently from any basic service. Function description: The LCS can provide information on the specific location of a subscriber in term of channel ID (CID) or latitude and longitude. The SMLC is the functional entity realizing the LCS service. Different from the GPS, the LCS service capitalizes on the existing GSM network. The carrier can provide the LCS service by deploying several LCS functional entities, without too many changes to the network. The HLR supports subscribing to the LCS service in Universal, Call related, Non- call related, or PLMN operator mode. The HLR also supports the Lh interface
Function description of HLR9820 V900R003C04
used for connecting to the GMLC, and provides routing function of the LCS service. If the LCS can be realized in the whole network, the LCS subscriber can query the location information through the mobile IN network or the Internet that supports the LCS service. If the application of the LCS in the third party is very mature, the subscriber can know at any time his/her current location, whether a supermarket or cinema is available in the nearby, and how to get there. The subscriber can also specify other subscribers so that they can locate the subscriber and know his/her whereabouts. In short, the LCS will bring about great changes to our daily lives. Benefits:
Benefits for the carrier: With the development of the telecommunication market, the provisioning of the LCS service is inevitable. The carrier should provide the LCS service as soon as possible to satisfy the requirements of the market and enhance its service competitiveness.
Benefits for the subscriber: The LCS allows a subscriber to know his/her current location, and brings about great convenience to the daily life. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol. It must cooperate with the GMLC, SMLC, MSC, and SGSN.
1.2.18 Other Services WHFD-050000 Function name: Other Services Specifications: None Overview: Other services include:
CFD (WHFD-050600)
CFNRy Default Time Medication (WHFD-050800)
WHFD-050600 Function name: Call Forwarding Default (CFD) Specifications: None. Overview:
Function description of HLR9820 V900R003C04
The HLR provides the CFD service independently, without cooperation with the MSC/VLR. Function description: The CFD is supplementary to the call forwarding services CFB, CFNRy, and CFNRc. But it is not a standard supplementary service, and has no allocated supplementary service code. The registration and deregistration of the service can only be performed by the carrier. If a subscriber's basic service based CFD service is activated but the subscriber's conditional call forwarding service based on the same basic service is not activated, the call is forwarded to the Ftn number specified by the CFD service. This mechanism can ensure that every call to the subscriber can be put through. Here, the subscriber's conditional call forwarding service is not activated because: 1. The subscriber has not subscribed to the conditional call forwarding supplementary service. 2. The subscriber has not registered the supplementary service. 3. The subscriber has not activated the supplementary service. For example, subscriber A has registered and activated the CFD service; the subscriber's Ftn number is N1, the number of a voice mail box. The subscriber has not registered the CFB service. When subscriber A is in conversation status, if subscriber B initiates a call to subscriber B, the call is forwarded to subscriber A's voice mail box. Benefits: 4. Benefits for the carrier: After the CFD service is provisioned and activated for a subscriber, every call to the subscriber can be put through. At least, every call to the subscriber can be connected to the Ftn number (such as the voice mail box) specified by the CFD service. In this way, the call completion rate of the overall network can be improved substantially. Besides, the CFD service has greatly simplified the call forwarding service configuration operation. If a subscriber intends to forward all calls to the same number, the operator can capitalize on the CFD service, and does not have to configure the Ftn number for every conditional call forwarding service. The CFD service enables the carrier to provide powerful and flexible call forwarding function for the subscriber and enhance its competitiveness. 5. Benefits for the subscriber: If a subscriber has registered the CFD service, every call to the subscriber can be put through. At least, every call to the subscriber can be connected to the Ftn number (such as the voice mail box) specified by the CFD service. Requirements for other NEs: The CFD service is a special service of the HLR. The interface of the CFD service complies with standard protocols. There is no special requirement on the MSC/VLR.
Function description of HLR9820 V900R003C04
WHFD-050800 Function name: CFNRy Default Time Modification Specifications: None Overview: The HLR supports the CFNRy Default Time Modification. Function description: When a subscriber activates the CFNRy service, if the subscriber does not select the no reply time, the system usually provides a default time (30s) for the subscriber's CFNRy service. When a call remains unanswered for the specified time, the system triggers the CFNRy service. The HLR provides an interface for modifying the default time. The default no reply time can be 5s, 10s, 15s, 20s, 25s, or 30s. Benefits:
Benefits for the carrier: The carrier can configure the no replay time for the CFNRy service of every subscriber so that the call forwarding services can be provided for the subscriber more flexibly.
Benefits for the subscriber: The service enables the subscriber to configure the no replay time of call forwarding for his/her own CFNRy service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
WHFD-050900 Function name: Automatic Device Detection (ADD) Specifications: 3GPP29002 Overview: The HLR provides the ADD function. The ADD function allows the related configuration data to be automatically sent to the user equipment (UE) when the core network detects the change of the IMEISV, IMSI, or subscription data. Function description: During the location update of a subscriber, the MSC sends the IMEISV of the subscriber in the location update request to the HLR. The HLR checks whether the IMEISV of the subscriber changes. If the IMEISV changes, the HLR sends a message to the ADD server. The ADD server then sends the related configuration data to the UE based on the type of the UE. (The ADD server stores and manages the configuration data of various types of UE, such as the configuration of the
Function description of HLR9820 V900R003C04
MMS and GRPS. It also allows the configuration data to be automatically sent to the UE.) In addition, when detecting the change of the IMSI, MSISDN, IMEISV, or subscription data such as the subscriber identity (pre-paid service subscriber or post-paid service subscriber), the HLR sends a message to the ADD server. The ADD server then updates the configuration data of the UE through the network. Benefits:
Benefits for the carrier: The ADD function simplifies the operations of the subscribers who use the data services, and thus increases the customer satisfaction.
Benefits for the subscriber: The ADD function facilitates subscribers to use new services. Instead of conducting the complicated network setting, subscribers can use services directly after they change their SIM or USIM cards or UEs. For example, the ADD function allows the GPRS service data to be automatically set on the MS before a subscriber uses the GPRS service. As a result, subscribers are more willing to use new data services. Requirement for other NEs: The ADD function is implemented by the HLR and the ADD server together. In addition, a proprietary interface, namely the SOAP interface, is required between the HLR and the ADD server.
1.2.19 Mobility Services WHFD-060000 Function name: Mobility Services Specifications: 3GPP29002 Overview: The mobility services include the Subscriber Information Services (WHFD- 060500).
WHFD-060500 Function name: Subscriber Information Services Specifications: 3GPP29002 Overview:
Function description of HLR9820 V900R003C04
The subscriber information service: 1. Supports querying the subscriber's information at any time. 2. Provides the subscriber's information. WHFD-060501 Function name: Any Time Interrogation Specifications: 3GPP29002 Overview: The Any time interrogation is a standard protocol compliant subscriber information service. Function description: The SCP can initiate a request for obtaining a subscriber's location information and status information to the HLR. Benefits:
Benefits for the carrier: The service enables the carrier to adopt the call charge rate based on the location to which a subscriber roams, and boost its competitiveness.
Benefits for the subscriber: The subscriber can benefit from the call charges. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR and the SCP. But there is no special requirement for MSC/VLR. WHFD-060502 Function name: Subscriber Information Provision Specifications: 3GPP29002 Overview: The Subscriber Information Provision service is a standard compliant subscriber information service. Function description: The HLR can obtain the information on the current cell and the status of the subscriber from the VLR of the subscriber. The HLR then sends a message with the mentioned information to the GMSC as the response to its routing information message or sends a message to the SCP as a response to its Anytime Subscription Interrogation message. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service enables the carrier to obtain detailed subscriber's location and status information to provide more powerful functions. For example, the carrier can adopt the call charge rates based on the cell to which a subscriber roams, and boost its competitiveness.
Benefits for the subscriber: The subscriber can benefit greatly from the call charges or enjoy better network service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. 1.2.20 Subscriber Data Management WHFD-090000 Function name: Subscriber Data Management Specifications: None Overview: The subscriber data management function involves:
Scheduled Batch Operation Execution (WHFD-090700)
Subscriber Data Export to Text File (WHFD-090900)
Subscriber Data Import from Test File (WHFD-091000)
3G Subscriber Data Storage (WHFD-091100)
WHFD-090700 Function name: Scheduled Batch Operation Execution Specifications: None Overview: The execution of batch operations has a certain impact on the system performance. To avoid the impact, the Scheduled Batch Operation Execution service enables the system to execute the batch operations at the time of low traffic volume automatically. Function description: The carrier can perform the batch operations at the time other than peak traffic hours, and avoid the inconvenience brought about by manual batch operations. Benefits:
Function description of HLR9820 V900R003C04
Benefits for the carrier: The carrier can conduct batch operations more flexibly.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-090900 Function name: Subscriber Data Export to Text File Specifications: None Overview: Huawei's HLR supports exporting all or partial subscriber data to a text file. Function description: Huawei's HLR supports exporting all or partial subscriber data to a text file. The text file complies with standard subscriber data format of Huawei's HLR. You can analyze, convert, and collect statistics on the exported subscriber data. Benefits:
Benefits for the carrier: The service enables the carrier to export the data in the HLR database to a text file and process the exported data conveniently.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-091000 Function name: Subscriber Data Import from Test File Specifications: None Overview: Huawei's HLR supports importing subscriber data from a text file with subscriber data of standard format.
Function description of HLR9820 V900R003C04
Function description: Huawei's HLR supports importing subscriber data from a text file with subscriber data of standard format. The service enables the carrier to import the subscriber data from one HLR to another. Benefits:
Benefits for the carrier: The service enables the carrier to transfer subscriber data exported from an HLR's database. For example, the carrier can transfer a portion of subscriber data in an HLR to another. Besides, when taking over the HLR of other vendor, the carrier can convert the data of the HLR of other vendor into a text file with data complying with Huawei's standard subscriber data format, and then import the subscriber data into the database of Huawei's HLR.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-091100 Function name: 3G Subscriber Data Storage Specifications: 3GPP29002, 3GPP23008 Overview: Huawei's HLR supports storing and identifying 3G subscriber data. Function description: Huawei's HLR stores the subscription data and authentication data of a 3G subscriber to satisfy the 3G subscriber's requirements for 3G services, such as location updating, calling, and video conversation. Benefits:
Benefits for the carrier: The service enables the carrier to provide diversified customized 3G services.
Benefits for the subscriber: The subscriber can enjoy the benefits bought about by 3G service. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
Function description of HLR9820 V900R003C04
1.2.21 Networking Functions WHFD-560000 Function name: Networking Functions Specifications: 3GPP29002 Overview: The networking functions include:
Multi-SP (WHFD-560100)
TDM 2M Signaling Link (WHFD-560200)
MAP phase2+ (WHFD-560500)
SIGTRAN (WHFD-560300)
WHFD-560100 Function name: Multi-SP Specifications: None Overview: The Multi-SP enables a physical HLR to be configured with multiple signaling points. It can increase the number of link connections between the HLR and the neighboring NEs, and enlarge the capacity of the links between the HLR and the neighboring NEs. Function description: Due to the limitations imposed by No. 7 MTP layer protocol, the maximum number of signaling links between two neighboring signaling points is 16. When the number of subscribers exceeds a certain level, the 16 links between the HLR and a signaling point cannot satisfy the requirements for signaling data transmission, causing link congestion. The Multi-SP service enables you to configure 16 signaling points in an HLR. Consequently, the HLR can establish up to 16 16 links with a neighboring signaling entity without imposing extra requirements on the peer end entity , well satisfying the requirements for signaling transmission. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service enables the HLR to break through the link limitation, and improve its signaling processing capability, without imposing extra requirements on the peer end network entity.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-560200 Function name: TDM 2M Signaling Link Specifications: None Overview: Huawei's HLR supports TDM 2M links. Function description: With the increase in the HLR's capacity and processing capability, the processing capacity of a signaling link becomes the bottleneck. The speed of a 2M high- speed signaling link is 31 time as high as that of a No.7 signaling link, well satisfying the requirements of mobile service on the HLR links. Benefits:
Benefits for the carrier: The application of 2M link in signaling points with large signaling traffics in between can reduce cost and simplify networking. Besides, if the HLR does not support Multi-SP function, it is subject to the limitation of 16 links. If the 16 64K links cannot satisfy the traffic volume requirements, the adoption of 2M links can well satisfy the traffic requirements.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-560500 Function name: MAP phase2+ Specifications:
Function description of HLR9820 V900R003C04
3GPP29002 Overview: Huawei's HLR supports the MAP phase2+. Function description: MAP phase2+ is supplementary to the MAP protocol. It is intended to satisfy the requirements for GSM supplementary services and telecommunication services. MAP phase2+ supports CSI-triggered IN services (including CAMEL phase1 and CAMEL phase2), regardless of voice service or data service. MAP phase2+ also helps to realize the LCS service. Benefits:
Benefits for the carrier: The HLR supports MAP phase2+. As a result, the carrier can provide services that are based on the MAP phase2+, and increase its revenue.
Benefits for the subscriber: The subscriber can enjoy services that are based on MAP phase2+. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
WHFD-560300 Function name: SIGTRAN Specifications: None Overview: Huawei's HLR supports the SIGTRAN, namely IP networking. Function description: The HLR provides the M3UA adaptation function to realize the conversion between MTP3/MTP2 based TDM bearer and SCTP/IP based IP bearer for the MAP signaling. The M3UA is the adaptation layer of MTP3. It adapts MTP3 subscriber messages to the SCTP layer for transmission over IP bearer. The M3UA layer must support MTP3 signaling point management and MTP routing management. Therefore, to realize the SG function through the M3UA, the SG must support MTP signaling point encoding. Note: The SIGTRAN service does not include the M2UA function.
Function description of HLR9820 V900R003C04
Benefits:
Benefits for the carrier: The HLR supports independent IP networking and can help the carrier to save investment in SG construction. The HLR can satisfy the diversified networking requirements. The types of signaling bearers between the HLR and other NEs can be TDM and IP. The signaling type is not subject to the limitation of the physical bearer type, and can be selected flexibly.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. If the peer end adopts TDM for bearing No. 7 signaling, a signaling gateway must be adopted for signaling conversion. WHFD-560600 Function name: SCTP multi-homing Specifications: RFC2960 Overview: In IP networking, the HLR provides the SCTP multi-homing function, which improves the reliability of the IP network. Function description: In IP networking, the HLR provides the SCTP multi-homing function, which allows multiple source addresses and destination addresses to be configured for an IP link. The source addresses can be configured on the same board or on different boards. Thus, multiple logical links and physical paths are established. The source addresses and destination addresses are assigned different connection priorities and belong to different network segments, and different network equipment can be connected to an SCTP association. Thus, single-point failure is eliminated from the IP links through the SCTP associations, and the reliability of the IP network is improved. Benefits:
Benefits for the carrier: The reliability of the IP network is improved.
Benefits for the subscriber: None Requirement for other NEs: The HLR implements the SCTP multi-homing function in compliance with the standard protocol. The implementation of the SCTP multi-homing function,
Function description of HLR9820 V900R003C04
however, requires the cooperation of the MSC/VLR. There is no special requirement for the MSC/VLR.
1.2.22 Enhanced Functions WHFD-570000 Function name: Enhanced Functions Specifications: 3GPP29002 Overview: The enhanced functions include: some special services, such as multi-MSISDN function, hot billing, voice ring back tone service, and voice broadcast service.
WHFD-570100 Function name: VLR Regional Roaming Restriction Specifications: None Overview: The VLR Regional Roaming Restriction service is based on VLR/SGSN roaming list. Every subscriber has his/her own VLR/SGSN roaming list. Function description: The VLR Regional Roaming Restriction service enables the carrier to provide various roaming restriction services flexibly. Without deploying any extra network equipment, the carrier can restrict the subscriber's roaming to some specified VLR or present the subscriber from roaming to some specified VLR through the subscriber roaming restriction template in the HLR. The VLR Regional Roaming Restriction service supports template-based configuration. In the HLR, the carrier can specify some VLR numbers, and compile a roaming restriction template based these VLR numbers. When subscribing to the VLR Regional Roaming Restriction service, the subscriber only needs to reference the template. This method can greatly improve the working efficiency of the carrier. The VLR Regional Roaming Restriction service is widely applied in local communication services. The carrier compiles a subscriber roaming restriction template based on all local VLR numbers. When a subscriber subscribes to the
Function description of HLR9820 V900R003C04
service based on the template, the subscriber can only roam and access the network locally (for example, a region, province, or city). To provide the VLR Regional Roaming Restriction service, the carrier must configure a VLR/SGSN roaming list for every subscriber. The list describes the roaming rules (for example, whether roaming is allowed) and the default roaming rule. When a subscriber's location in CS domain or PS domain is updated, the VLR/SGSN initiates a location update request to the HLR. The HLR then checks the subscriber's VLR/SGSN roaming list. If the number of the VLR/SGSN matches a record in the VLR/SGSN roaming list, the HLR decides whether the subscriber is allowed to roam in the area according to the specified roaming rule. If the number of the VLR/SGSN matches no record in the VLR/SGSN roaming list, the HLR uses the default roaming rule to decide whether the subscriber is allowed to roam in the area. Benefits:
Benefits for the carrier: The service enables the carrier to provide local communication network service for the subscribers or provide roaming restriction services for the subscribers individually, thus improving its competitiveness.
Benefits for the subscriber: The subscriber who has subscribed to the service can enjoy relatively low charge rate and save the expense. If the carrier provides the roaming restriction service individually, the subscriber can specify the roaming area for himself/herself. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-570700 Function name: CAMEL Restriction Specifications: None Overview: The CAMEL Restriction service is a special service provided by the HLR9820. Sometimes, when the HLR sends CAMEL data to the MSC/SGSN, the MSC/SGSN does not support the CAMEL data due to its poor compatibility. Consequently, the location update flow or the send routing information (SRI) flow fails, and the subscriber cannot access the network or serve as the callee. To improve the network compatibility of the HLR, the CAMEL Restriction service allows you to configure a switch. When the switch is turned on, it can prevent the HLR from sending some specified CAMEL data to the MSC/SGSN. Function description:
Function description of HLR9820 V900R003C04
The HLR supports the CAMEL Restriction service. The carrier can configure the service in the HLR to control whether it should send CAMEL data in a flow. The following lists the major CAMEL restriction solutions: 1. Selective Bypass: This is a CAMEL based selective bypass solution. When the callee passes the selective bypass authentication, the HLR does include the T-CSI information of the subscriber's PPS service into the response messages of the SRI request. 2. SMS-CSI data insertion restriction: The HLR decides whether to send the SMS-CSI data according to the VLR/SGSN to which the PPS subscriber roams. For example, if the subscriber roams to the country that has not signed the CAMEL roaming agreement, the HLR does not send the SMS-CSI to the subscriber. As a result, the subscriber cannot send short messages. 3. VLR based outgoing call restriction: The HLR decides whether to send the outgoing call restriction data to the subscriber according to the VLR to which the PPS subscriber roams. For example, if the subscriber roams to the country that has not signed the CAMEL roaming agreement, the subscriber is prohibited to make outgoing calls. 4. Subscriber oriented CAMEL service customization When a subscriber roams outside the local network, the HLR decides whether to send the O-CSI and TCSI data to the subscriber according to the network compatibility and the CAMEL agreement signed between the carriers. For example, according to the basic service keys, the carrier can specify that:
The CAMEL logic is triggered only when the subscriber roams to the specified areas.
Whether the subscriber is allowed to access the network after the subscriber roams to the areas where the CAMEL is not supported.
Whether a call is allowed when the network of the caller does not support the CAMEL. Benefits:
Benefits for the carrier: The service enables the carrier to configure the subscriber-based CAMEL processing capability in the HLR. The carrier can provide more customized CAMEL services for the subscriber, and enhance its competitiveness.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
Function description of HLR9820 V900R003C04
WHFD-570701 Function name: TCSI Suppression Enhancement Specifications: None Overview: The HLR supports the TCSI Suppression Enhancement function. The carrier can configure the service to decide whether the HLR should send the subscriber TCSI data. Function description: The HLR9820 supports T-CSI suppression. When a subscriber serves as the callee, the HLR checks whether the subscriber roams under the local VLR. If yes, the response message of the SRI message does not contain the T-CSI flag; if not, the returned response message of the SRI message contains the T-CSI flag. Benefits:
Benefits for the carrier: The service enables the carrier to configure the subscriber-based CAMEL processing schemes in the HLR. The carrier can provide more customized CAMEL services, and enhance its competitiveness.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-570900 Function name: Multi-MSISDN Specifications: 3GPP29002 Overview: The HLR allows an IMSI subscriber to subscribe to multiple MSISDN numbers. Function description: The HLR allows a subscriber to subscribe to multiple MSISDN numbers. A subscriber holding a SIM card can have multiple MSISDN numbers, with each MSISDN number corresponding to different default basic services (for example, telephone service, FAX service and other data service respectively). When the subscriber uses the FAX service and data service, the FAX service or data service initiated by the PSTN network does not contain the bearer capability information. If the subscriber has only one MSISDN number, the HLR cannot know whether the service initiated by the PSTN is a voice call or data call. Through the Multi-MSISDN service, the HLR can specify three numbers for the
Function description of HLR9820 V900R003C04
subscriber's voice service, FAX service, and data service respectively. When the PSTN dials a number, the HLR can know the call is of FAX service or data service. Benefits:
Benefits for the carrier: The service enables the carrier to attract more subscribers and improve its market competitiveness.
Benefits for the subscriber: The subscriber of the service can use different MSISDN numbers for different services. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-571300 Function name: Multi-OP Specifications: None Overview: Operator Variant Algorithm Configuration Field (OP) is a parameter of the authentication calculation involving the MILENAGE authentication algorithm. All subscribers of a carrier use the same OP to distinguish themselves from subscribers of other carriers. Currently, the HLR supports allocating multiple OPs for a carrier. Function description: OP is a parameter of the UMTS authentication. Through the parameter, the carrier can configure UMTIS authentication algorithms. The OP is stored in the HLR (AUC) and the USIM card. The HLR9820 supports multiple OPs. Different USIM cards under an HLR can use different OPs. Benefits:
Benefits for the carrier: The service allows different USIM cards to use different OPs, greatly enhancing the security of the system.
Benefits for the subscriber: Every subscriber can have his/her own OP. Consequently, the security of the USIM card is further improved. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-571700 Function name:
Function description of HLR9820 V900R003C04
Hot Billing Specifications: None Overview: The HLR provides the Hot Billing service for the subscriber. The service belongs to the carrier's self-defined supplementary service. Function description: If the subscriber has subscribed to the Hot Billing service, the MSC sends the original call bill to the iGWB. The iGWB allocates a separate channel for the final call bill, and sends the bill to the billing center in real-time. Benefits:
Benefits for the carrier: The carrier can provide real-time billing service for the subscriber, for example, telephone lease service.
Benefits for the subscriber: The subscriber can obtain the call bill in real-time. The subscriber can enjoy real- time billing services. Requirements for other NEs: The service is of non-standard service. The HLR must cooperate with Huawei's MSC/VLR. WHFD-571800 Function name: Alternative Line Service (ALS) Specifications: 3GPP29002 Overview: The ALS service allows a subscriber holding one MS and one SIM card to have two MSISDN numbers. The billing for the two numbers is carried out separately. Function description: The subscriber of the ALS service can make both business calls and private calls through one MS and one SIM card. The billing for the business calls and private calls is made separately. The subscriber does not have to prepare for two SIM cards to make business calls and private calls separately or use one SIM card to make both business calls and private calls. The provisioning of the ALS service requires the support from the MSC/VLR. Meanwhile, the MS must support configuring line 1 and line 2. The MSISDN numbers of the ALS service possess the following attributes:
The two numbers correspond to line 1 and line 2 of the MS. When the subscriber initiates a call through a different line, the caller ID displayed in the callee's terminal is also different.
Function description of HLR9820 V900R003C04
The ALS service supports activating supplementary services, including call barring services, call forwarding services, and call wait service for line 2 separately.
The number of line 2 can only receive short messages. It does not support initiating a short message or performing the USSD operation. Benefits:
Benefits for the carrier: The service can attract more subscribers for the carrier and improve the competitiveness of the carrier.
Benefits for the subscriber: The subscriber of the ALS service can apply for two lines and two numbers, and use them to make both business calls and private calls separately. The subscriber only needs to prepare for one card, and the billing for the business calls and private calls is made separately. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-572000 Function name: HLR-Specific Roaming Restriction Specifications: None Overview: The HLR-Specific Roaming Restriction is based on VLR/SGSN roaming list. Once being configured, the VLR/SGSN roaming list is effective to all subscribers. Function description: The HLR-Specific Roaming Restriction service configures a VLR/SGSN roaming list for the HLR. Meanwhile, the list contains a roaming rule (whether roaming is allowed) and a default roaming rule. When the VLR/SGSN initiates a location update request, the HLR queries the VLR/SGSN roaming list, and checks whether the VLR/SGSN number matches a record in the VLR/SGSN roaming list. If yes, the HLR applies the roaming rule to decide whether the subscriber is allowed to roam. If not, apply the default rule to decide whether the subscriber is allowed to roam. The roaming restriction in the VLR/SGSN roaming list is effective to all subscribers under the HLR. Benefits:
Benefits for the carrier: The HLR-Specific Roaming Restriction service is of HLR level, and is effective to all subscribers. It provides a flexible roaming restriction function for the carrier.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-572100 Function name: SMC Address Filtering Specifications: None Overview: The HLR supports filtering messages from the short message center according to an address list. Function description: You can configure an address list in the HLR. The HLR can apply the address list to shield short messages from the short message center. This mechanism can avoid malicious attacks, and alleviate the payload of the HLR and the network. Benefits:
Benefits for the carrier: This service can avoid malicious attacks through short messages and alleviate the payload of the HLR and the network.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-572101 Function name: SCP Address Filtering Specifications: None Overview: The HLR supports the SCP address filtering function. Function description: You can configure an SCP address list in the HLR. The HLR can apply the address list to shield A short messages from the SCP. This mechanism can avoid malicious attacks, and alleviate the payload of the HLR and the network. Benefits:
Function description of HLR9820 V900R003C04
Benefits for the carrier: This service can avoid malicious attacks through short messages and alleviate the payload of the HLR and the network.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-572200 Function name: CF-Specific Black and White Lists Specifications: None Overview: The CF-Specific Black and White Lists service enables the HLR to control the subscriber's registration of the call forwarding service. The service is effective to all subscribers. You can configure a global table with call forwarding rules for the specified Ftn numbers in the HLR. Through the global table, the HLR can control whether a subscriber can register the Ftn numbers. Function description: The CF-Specific Black and White Lists in the HLR exist in the form of a global table. The global table is effective to all subscribers. The carrier can compile Ftn number segments (including the start Ftn number and the end Ftn number) according to the actual circumstances, and configure the call forwarding rule and the default call forwarding rule based on the number segments. When the Ftn numbers registered by a subscriber fall within the number segments, the HLR applies the call forwarding rule. If not, the HLR applies the default call forwarding rule. If the call forwarding rule or the default call forwarding rule prohibits the registration of the Ftn numbers, the registration fails. Benefits:
Benefits for the carrier: The service enables the carrier to manage the subscriber's call forwarding more flexibly, and prevent the registration of illegal numbers.
Benefits for the subscriber: This service prevents the subscriber from incurring financial loss resulting from registration of illegal Ftn numbers. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-572300 Function name:
Function description of HLR9820 V900R003C04
Network Capability Configuration (NCC) Specifications: None Overview: The NCC service allows you to configure the capabilities sets for the services and MAP operations supported by the VLR, so that the HLR can process services and MAP flows according to the capability sets, improving the network compatibility. Function description: The NCC service is based on the NCC template and the VLR/SGSN type. It establishes mappings between the NCC templates and the VLR/SGSN numbers in the VLR/SGSN Type table . The following offers the detailed description of the service: 1. Processing of special services by the HLR Some services, such as MPTY and PLMNSS, are only supported by some VLRs.If the HLR intends to send the data of these special services to the VLR in the location update flow and subscriber data insertion flow, the HLR queries the VLR Type table according to the VLR number, and obtains the corresponding NCC template. The HLR then processes the services according to the methods specified in the template. 2. Processing of the VLR Type table by the HLR In the CS domain, the HLR and the VLR support different MAP Phases. When performing MAP operations such as location update and subscriber data insertion, the HLR first queries the VLR Type table according to the VLR number to obtain the NCC template and obtain the MAP Phase supported by the VLR. Next, the HLR processes data as follows: If the HLR receives the MAP messages initiated by the VLR and the version value of the MAP Phase in the request is higher than that in the template, the HLR performs version negotiation. If the HLR initiates the MAP message, the HLR performs the MAP operations according to the MAP Phase supported by the VLR in the NCC template, and avoid version negotiation to reduce waste in link resources caused by version negotiation. 3. Processing the SGSN Type table by the HLR In the PS domain, the HLR and the SGSN support different MAP Phases. When performing MAP operations such as location update and subscriber data insertion, the HLR first queries the SGSN Type table according to the SGSN number to obtain the NCC template and obtain the MAP Phase supported by the SGSN. Next, the HLR processes data as follows: If the HLR receives the MAP messages initiated by the SGSN and the version value of the MAP Phase in the request is higher than that in the template, the HLR performs version negotiation. If the HLR initiates the MAP message, the HLR performs the MAP operations according to the MAP Phase supported by the SGSN in the NCC template, and
Function description of HLR9820 V900R003C04
avoid version negotiation to reduce waste in link resources caused by version negotiation. 4. The HLR's processing when a VLR number matches no record in the VLR Type table In the CS domain, not all VLR numbers match records in the VLR Type table. Sometimes, the HLR cannot find a record in the VLR Type table to match a VLR number. In this case, the HLR is not compatible with the VLR. Therefore, the HLR needs to use the VLR's default NCC template. When the HLR cannot find an NCC template because the VLR number matches no record in the VLR Type table, the HLR processes the services and MAP flow according to the default NCC template. 5. The processing by the HLR when an SGSN number matches no record in the SGSN Type table In the PS domain, not all SGSN numbers are included into the SGSN Type table. Sometimes, the HLR cannot find a record in the SGSN Type table to match an SGSN number. In this case, the HLR cannot conduct network compatibility processing. Therefore, the HLR needs to use the default NCC template. When the HLR cannot find an NCC template because the SGSN number matches no record in the SGSN Type table, and the HLR processes the services and MAP flow according to the default NCC template. Benefits:
Benefits for the carrier: The service can improve the HLR's compatibility with the surrounding NEs, increase the HLR's MAP operation success rate and efficiency, satisfy the carrier's customized network compatibility requirements and facilitate the carrier's network deployment.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the functions internally. There is no special requirement for external NEs. WHFD-572400 Function name: Ring Back Tone Specifications: None Overview: Through the RBT service, the subscriber can subscribe to personalized coloring ring back tone to replace the traditional ring back tone. When a subscriber initiates a call to another subscriber, the subscriber as the caller can hear the ring back tone subscribed by the callee. The ring back tone can be either a piece of music, advertisement, or recorded speech.
Function description of HLR9820 V900R003C04
Function description: The Ring Back Tone service, or personalized ring back tone service, is a piece of music or a greeting subscribed by the callee for the caller in replacement of a common ring back tone. After a subscriber has subscribed to the Ring Back Tone service, he/she can configure the coloring ring back tone through WWW, WAP, and access code. When a subscriber serves as the callee and is idle, the HLR can play a piece of music, DIY announcement, or video according to the calling number, home area of the callee, and the time specified by the callee in replacement of the common ring back tone for the caller. Benefits:
Benefits for the carrier: The service can provide extra revenue for the carrier and improve the subscriber's satisfaction level.
Benefits for the subscriber: The subscriber of the service can modify his/her own personalized ring back tone, and enable the callee to enjoy brilliant music or personalized tone. Requirements for other NEs: The service is of non-standard service. The HLR must cooperate with the MSC/VLR.
WHFD-573000 Function name: Local Mobile Station Identity (LMSI) Specifications: None. Overview: The HLR supports the LMSI service. The service is designed especially for some special areas. Some services are provisioned in cooperation with the satellite mobile telecommunication system. The HLR provides the LMSI function to facilitate the provisioning of these services. Function description: The following describes the basic processing flow of the function: The HLR transfers Location Area Code (LAC) over the LMSI cells. 1. In the location update flow, the VLR sends the subscriber's LAC to the HLR. 2. The HLR stores the received LMSI cells without any processing. 3. When the HLR initiates the PRN request, it sends the LMSI cells to the VLR. Through the function of the HLR, the carrier can provide services in some special areas under the help of the satellite mobile telecommunication system. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service enables the carrier to provide services in special areas under the help of the satellite mobile telecommunication system, enlarge the service coverage, and enhance its competitiveness.
Benefits for the subscriber: None. Requirements for other NEs: The service is of a non-standard service. The HLR must cooperate with the MSC/VLR to realize the service. WHFD-573100 Function name: Zone Code Specifications: 3GPP29002 Overview: The HLR allows the subscriber to subscribe to the Zone Code service. Through the service, the MSC/SGSN can restrict the roaming of a subscriber to the cell level. Function description: The Zone Code service is a flexible subscriber's roaming restriction service. Compared with the VLR Regional Roaming Restriction service, the Zone Code service can restrict the roaming of a subscriber to a smaller area, the roaming area defined by the carrier through the Zone Code service. A roaming area can have up to 10 zone codes. When the subscriber subscribes to the Zone Code service, if the CC and NDC of the subscriber's VLR/SGSN is included into the subscription data, the HLR sends the zone code list to the subscriber's VLR/SGSN. After receiving the zone code list, the VLR/SGSN can control the subscriber's roaming according to the zone code of the area where the subscriber is located. If the zone code of the area where the subscriber is located is not included in the zone code list, the VLR/SGSN prevents the subscriber from roaming further. Benefits:
Benefits for the carrier: The service enables the carrier to provide local communication network service for the subscribers or provide roaming restriction services for the subscribers individually, thus improving its competitiveness.
Benefits for the subscriber: The subscriber who has subscribed to the service can enjoy relatively low charge rate and save the expense. If the carrier provides the roaming restriction service individually, the subscriber can specify the roaming area for himself/herself. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol in cooperation with the MSC/VLR/SGSN. But there is special requirement.
Function description of HLR9820 V900R003C04
WHFD-573200 Function name: Access Restriction Data (ARD) Specifications: 3GPP29002 Overview: The ARD service enables the carrier to restrict the GSM subscriber's accessing the UMTS network. Function description: The HLR supports inserting the access restriction flag into the expended MAP ISD transmitted between the HLR and the VLR/SGSN. When receiving the ISD, the VLR/SGSN decides whether it should permit the subscriber's login request according to the related software configuration and the subscriber's wireless access system. If the VLR/SGSN rejects the subscriber's login request, it returns a message with the value of the cause. The carrier can configure the value of the cause flexibly. For example, a subscriber has subscribed to the ARD service in the HLR. The ARD service supports the attribute GREANAllowed/UTRANNOTAllowed. Provided that the local MSFTX3000 supports the ARD service, when the subscriber exits the 3G UTRAN and logs in to the local network, the location update fails due to access restriction. Consequently, 2G subscriber's access to the 3G network is under control. Benefits:
Benefits for the carrier: The service enables the carrier to control 2G subscribers' access to the UMTS network, and reasonably arrange and open the network resources for the subscribers.
Benefits for the subscriber: The service enables the subscriber to access the desired wireless network. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for the MSC/VLR. WHFD-573300 Function name: CS Allocation/Retention Priority (CARP) Specifications: 3GPP29002 Overview: The CARP service enables the carrier to configure the priority of a subscriber at the time of network congestion. The CARP service is effective to the subscribers in the CS domain only. Function description:
Function description of HLR9820 V900R003C04
The CARP service divides the subscriber's priorities into three levels: high (category-1 subscriber), medium (category-2 subscriber), and low (category-3 subscriber). The carrier can configure the priorities of a subscriber in the access process and the service provisioning process respectively. In the HLR, you can add and manage the subscriber's CARP data. The HLR sends the subscriber's CARP data to the subscriber's VLR. When the subscriber establishes a call connection for a call, the VLR sends the CARP data to the RNC. The RNC provides differentiated service for the subscriber according to the subscriber's CARP priority. Benefits:
Benefits for the carrier: The service enables the carrier to allocate different priorities to different subscribers and provide voice service of different QoS for these subscribers accordingly. The service also enables the carrier to provide QoS solutions for the subscribers flexibly. When the network is congested, the carrier can provide excellent voice service (short call connection setup time, high voice quality, and high call completion rate) for the high-end subscribers. The low-end subscriber's line may be occupied or the voice encoding rate of the line is decreased for attracting more high-end subscribers.
Benefits for the subscriber: The service ensures that the high-end subscriber can enjoy better voice and data services. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol CARP and must cooperate with the MSC/VLR. But there is no special requirement for the MSC/VLR. WHFD-573301 Function name: Allocation/Retention Priority (ARP) Specifications: 3GPP29002 Overview: The ARP service enables the carrier to configure the priority of a subscriber at the time of GPRS network resource congestion. The CARP service is effective to the subscribers in the PS domain only. Function description: The ARP service divides the subscriber's priorities into three levels: high (category-1 subscriber), medium (category-2 subscriber), and low (category-3 subscriber). The carrier can configure the priorities of a subscriber in the access process and service provisioning process respectively. In the HLR, you can add and manage the subscriber's ARP data. The HLR sends the subscriber's ARP data to the subscriber's SGSN. When the subscriber establishes a call connection for a call, the SGSN sends the ARP data to the RNC.
Function description of HLR9820 V900R003C04
The RNC provides differentiated service for the subscriber according to the subscriber's ARP priority. Benefits:
Benefits for the carrier: The service enables the carrier to allocate different priorities to different subscribers and provide voice service of different QoS for these subscribers accordingly. The service also enables the carrier to provide QoS solutions for the subscribers flexibly. When the network is congested, the carrier can provide excellent voice service (short call connection setup time, high voice quality, and high call completion rate) for the high-end subscribers. The low-end subscriber's line may be occupied or the voice encoding rate of the line is decreased for attracting more high-end subscribers.
Benefits for the subscriber: The service ensures that the high-end subscriber can enjoy better voice and data services. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol ARP in cooperation with the SGSN/GGSN. But there is no special requirement for these NEs. WHFD-573400 Function name: Support of Optimal Routing (SOR) Specifications: 3GPP23079 Overview: The SOR service is a network attribute. It allows a call to be routed to the actual location of the callee to reduce the circuits occupied unnecessarily. The SOR service is suitable to inter-country roaming and inter-network roaming. It can reduce the call charge of the caller and the callee and promote the international roaming service. Function description: The SOR is an attribute that complies with standard protocols such as 02.79, 03.79, and 23.078.The SOR is a network attribute. It enables a call to be routed to the current location of the callee or to the Ftn number directly without passing through the callee's HPLMN or VPLMN. The caller's HPLMN decides whether to optimize the routes according to the information provided by the callee's HPLMN. The HPLMN can decide whether to optimize routes of a call for some special subscribers. The purpose of the SOR is to reduce unnecessary inter-network call connections. Benefits:
Function description of HLR9820 V900R003C04
Benefits for the carrier: The SOR service is suitable to inter-country roaming and inter-network roaming. It can reduce the call charge of the caller and the callee and promote the international roaming service.
Benefits for the subscriber: The service can help the subscriber to save international roaming charge. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for the MSC/VLR. WHFD-574000 Function name: Global Tracing Specifications: 3GPP29002 Overview: To remove faults in the increasingly-complicated telecommunication network, you need to figure out where the problem is found first. The next task is to analyze the root of the problem and remove the faults. The SOR function is to trace and collect information on the specified subscriber at minimum consumption of system resources. Through the service, the maintenance personnel can pinpoint a problem to a specific NE, analyze the cause of the problem, and remove the fault. Function description: The Global Tracing service enables the network to trace the network entities at the occurrence of some special events and obtain the call related information. Refer to GSM 12.08 protocol. The HLR supports the Global Tracing service. As a part of the end-to-end tracing solution, the HLR supports the CS domain based tracing function. The HLR instructs the MSC/VLR of a subscriber to trace the subscriber. The MSC records the information on the actions of the traced subscriber (such as location update, MS power-on/off, originating/terminating a call, and originating /terminating a short message) in a tracing file, and stores the file in the daemon. If necessary, the maintenance personnel can read the file to locate faults. Benefits:
Benefits for the carrier: The service enables the maintenance personnel to pinpoint a fault in a network to a specific NE, and then remove the fault. The carrier can improve the fault handling efficiency.
Benefits for the subscriber: None. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-574200 Function name: Service Change and UDI Fallback Function Specifications: 3GPP23172, 3GPP23018 Overview: The HLR supports the Service Change and UDI Fallback Function service. Function description: The HLR complies with the 3GPP 23.172 and 23.018 protocols. The HLR also supports the multimedia fallback function. When a subscriber initiates a multimedia call, the network automatically turns the call into a common call on the following occasions: 1. The callee's MS does not support the VP call. 2. The callee is unwilling to receive the call in VP mode. 3. The callee has not subscribed to the VP service. 4. The callee has roamed to the GSM network. 5. During the VP call process, the caller or callee is switched to the GSM network. Benefits:
Benefits for the carrier: The service can automatically convert a video call into a common call when the conditions of a video call cannot be satisfied. It can improve the call completion rate between 3G subscribers and the subscriber's satisfaction level.
Benefits for the subscriber: The service can automatically convert a video call into a common call when the conditions of a video call cannot be satisfied, simplifying the subscriber's multi- media service operation. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR. WHFD-574500 Function name: CLIP by HLR Specifications: None. Overview:
Function description of HLR9820 V900R003C04
The service enables the HLR to realize the CLIP function by carrying the calling number in the MAP layer of the obtaining roam number request message. Function description: The CLIP service enables the network to display the calling number in the MS of the callee. For example, subscriber A has subscribed to the service. When subscriber B initiates a call to subscriber A, subscriber A's MS rings and displays subscriber B's telephone number. In the implementation of the function, the HLR sends the calling number to the MSC of the callee, and the MSC of the callee then sends the calling number to the callee. The following describes the specific flow: 1. The GMSC carriers the calling number in the SRI request message. 2. HLR sends the PRN request with the calling number in private coding Benefits:
Benefits for the carrier: The service enables the network to realize the CLIP service when the MSC of the caller cannot send the calling number to the MSC of the callee directly.
Benefits for the subscriber: None. Requirements for other NEs: The service is of non-standard service. The HLR must cooperate with the MSC/VLR to realize the service. WHFD-574800 Function name: USSD Barring Specifications: None. Overview: The HLR supports barring the USSD operations. Function description: The HLR enables the carrier to control whether to bar the subscriber's USSD operations through the global configuration. For example, a subscriber has subscribed to a self-defined supplementary service with the service code of PLMN-SS-1. If the carrier intends to bar the USSD operation for the service, it only needs to set the USSD baring parameter to PLMN-SS-1 in the global configuration. Currently, the HLR supports barring the USSD operations for 15 self-defined supplementary services, ranging from PLMN-SS-1 to PLMN-SS-F. Enhanced function description: For example, the carrier provides the coloring ring back tone service, allowing the subscriber to activate the coloring ring back tone service from the MS. The subscriber's activation of the coloring ring back tone service in the MS is a USSD operation.
Function description of HLR9820 V900R003C04
Benefits:
Benefits for the carrier: The service enhances the carrier's control over the subscriber's behaviors, and ensures the interests of the carrier.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
WHFD-574900 Function name: 2G/3G QoS Mapping Specifications: None Overview: The HLR supports the 2G/3G QoS mapping. Function description: In the GPRS location update flow, if the SGSN carries the GPRS enhancement flag in its message, it means that the SGSN supports the 3G QoS service. In this case, the HLR sends the GPRS QoS data to the SGSN directly. If the SGSN does not carry the GPRS enhancement flag in its message, the HLR maps the GPRS QoS data into 2G data to the SGSN. Benefits:
Benefits for the carrier: The service enhances the network's compatibility.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
1.2.23 GSMR Functions WHFD-572600 Function name: GSMR functions Overview: The HLR supports the following GSMR functions:
Function description of HLR9820 V900R003C04
1. Voice Broadcast Service (VBS) (WHFD-572700) 2. Voice Group Call Service (VGCS) (WHFD-572800) 3. Enhanced Multi-Level Precedence and Pre-Emption (eMLPP) (WHFD- 572900) 4. Follow Me (WHFD-573800) 5. User-to-User Signaling (UUS) service (WHFD-573900)
WHFD-572700 Function name: VBS Specifications: 3GPP29002 Overview: In short, the VBS is a P2MP voice service. There is only one speaker, the dispatcher or the business subscriber. There is no limitation on the number of listeners. The subscribers involved in the VBS can be divided into two categories: dispatcher and business subscriber. Function description: The VBS service can establish a broadcast call to a group of subscribers in a specified area. The service is provisioned in simplex mode. Only the initiator adopts duplex channel. During the process of the call, only the initiator can speak, and other subscribers can only be the listeners. The VBS service establishes a broadcast channel for every cell of the broadcasted area. All subscribers in the cell share the downstream broadcast channel and receive the voice. The VBS call also supports establishing connections to the dispatcher. Each call can establish connections to up to five dispatchers. The VBS call can be initiated by either the business subscriber or the authorized dispatcher. The subscribers involved in the VBS call can be divided into two categories: dispatcher and business subscriber. 1. Dispatcher Each VBS call supports up to 5 dispatchers. The dispatcher can be either a fixed network subscriber or mobile subscriber. A dedicated channel is established for the dispatcher. 2. Business subscriber The business subscriber is the mobile subscriber who has subscribed to the VBS service. The called business subscriber participates in the communication through the group call channel of the group call area. The VBS service enables a subscriber to establish a call connection to a group of subscribers with specified group ID in the specified group call area. The group call area consists of cells under the same MSC or different MSCs. When a VBS call is made, a group call channel is established for every cell. The upstream
Function description of HLR9820 V900R003C04
channel is for the current speaker only, and all listeners share the downstream channel. The notification messages of the VBS call are broadcasted over the Notification Channel (NCH). During the process of a VBS call, only the calling dispatcher can speak. Other dispatchers and business subscribers serve as the audience and cannot speak. The VBS service differs from the VGCS service in that:
In the VBS call, only the VBS call initiator can speak, and other subscribers can only serve as the listeners.
In the VGCS call, all subscribers except the dispatcher can seize the upstream channel and make speech.
Therefore, the VBS service does not provide upstream channel management and control, which is available in the VGCS service. Benefits:
Benefits for the carrier The VBS service complies with the GSMR specifications, and is mainly applied in railway mobile telecommunication. The carrier can capitalize on the group call capability of the VBS service to serve the subscribers.
Benefits for the subscriber: The service enables the subscriber to make unidirectional conversation. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
WHFD-572800 Function name: Voice Group Call Service (VGCS) Specifications: 3GPP29002 Overview: The VGCS service is a voice service that realizes M2MP conversation. It allows up to 6 subscribers (including 5 dispatchers and 1 service subscriber) to speak, but imposes no limitation on the quantity of listeners. The subscribers involved in the VGCS can be divided into two categories: dispatcher and business subscriber. Function description: The VGCS service can establish broadcast call connections to a group of business subscribers in a specified area. The VGCS service works in half duplex mode. In the call process, any business subscriber can become the speaker. At any time, only one speaker is allowed, and other business subscriber can only be the listeners. Besides the broadcast call connections to the business subscribers, the VGCS also supports establishing a dedicated duplex connection to the dispatcher. The dispatcher can receive messages from and publish messages to the whole group.
Function description of HLR9820 V900R003C04
The VGC call can be initiated by either the business subscriber or the authorized dispatcher. The subscribers involved in the VGCS call can be divided into two categories: dispatcher and business subscriber. 1. Dispatcher The dispatcher can be either a fixed network subscriber or a mobile subscriber. A dedicated channel is established for the dispatcher. All dispatchers can speak at any time. A dispatcher is authorized to initiate the VGCS call. 2. Business subscriber The business subscriber is the mobile subscriber who has subscribed to the VGCS service. The called business subscriber participates in the communication through the group call channel for the group call area. All business subscribers scratch an upstream channel. The authorized business subscriber can initiate the VGCS call. The VBS service differs from the VGCS service in that:
In the VBS call, only the VBS call initiator can speak, and other subscribers can only serve as the listeners.
In the VGCS call, all subscribers except the dispatcher can scratch the upstream channel and make speech.
Therefore, the VBS service does not provide upstream channel management and control, which is available in the VGCS service. Benefits:
Benefits for the carrier: The VGCS service complies with the GSMR specifications, and is mainly applied in railway mobile telecommunication. The carrier can capitalize on the group call capability of the VGCS service to serve the subscribers.
Benefits for the subscriber: The service enables the subscriber to realize multi-party conversation (half duplex). Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
WHFD-572900 Function name: Enhanced Multi-Level Precedence and Pre-Emption (eMLPP) Specifications: 3GPP22067, 3GPP23067, 3GPP24067 Overview: The eMLPP service enables the network to adopt different network resources allocation policies (the queuing policy and preemption policy) based on the subscriber's priority when the network resources are very scarce. Besides, the service also enables the network to adopt different call connection setup flows and
Function description of HLR9820 V900R003C04
resource assignment flows to satisfy the requirements in delay by calls of different priorities. When the network resources are sufficient, the role of the eMLPP service is rather weak, because the preemption capability of the service cannot be put into full play. When the network resources are very scarce, the eMLPP service becomes very precious, because it can help the carrier to maximize its benefits. Function description: The eMLPP service is a supplementary service, and complies with GSM02.67, GSM03.67, and GSM04.67 protocols. The service allows high-priority subscribers to enjoy quicker call connection setup, and seize the resources (including circuit resources of interface A and trunk circuit resources) of low- priority calls when the network sources are rather scarce. As a result, the carrier provides differentiated services for the subscribers, and enables the connections of high-priority calls to be established first. The eMLPP service provides 7 priorities: A, B, 0, 1, 2, 3, and 4. The two highest priorities (priority A and priority B) are for the internal use within the carrier, for example, emergency calls or special VGCS/VBS calls. The two priorities are only effective within one MSC/VLR, and are treated as priority 0 in other MSCs/VLRs. Other five priorities are for the subscribers only, and are applicable in ISDN networks supporting the eMLPP service. When subscribing to the eMLPP service, the subscriber can specify a priority in the HLR as his/her top priority. Meanwhile, the subscriber can also specify the default priority, which cannot be higher than the subscriber's top priority. Through the MS (provided that the MS supports the service), the subscriber can modify the default priority. When the MS's location is updated, the HLR sends a message with the subscriber's top priority and default priority to the VLR. The eMLPP service allocates one or multiple priority rights to a subscriber. The subscriber can select a priority for every call according to his/her own rights. The network allocates resources to every call according to the priority of the call. Every call of a certain priority can select a call connection setup mode. The eMLPP service involves quick call connection setup and queuing & preemption.
Quick call connection setup Every call of a certain priority can decide whether to adopt quick call setup flow.
Queuing & preemption When the network resources (including trunk circuits, signaling channels, and service channels) are scarce, the network holds calls of high priority and offers preferential treatment for these calls in queuing, and even allows these calls to seize the resources of low-priority calls. Benefits:
Benefits for the carrier: The service allows the carrier to provide differentiated services for subscriber groups of different levels. When the network resources are scarce, the service can help the carrier to maximize its benefits.
Benefits for the subscriber:
Function description of HLR9820 V900R003C04
The service enables subscribers of different eMLPP priorities to enjoy differentiated services. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol in cooperation with the MSC/VLR/BSC/RNC/MS/UE. But there is no special requirement for these NEs.
WHFD-573800 Function name: Follow Me (FM) Specifications: 3GPP22094, 3GPP23094 Overview: In the cluster communication, the follow-me function number represents a position rather than a real subscriber. The current in-position person can register his/her MSISDN under the follow-me function number, and associate the follow- me function number with the real subscribers. Function description: The FM service is also referred to as function number based addressing. The console controls the current in-position subscriber according to the follow-me function number. When the in-position subscriber changes, the telephone number also changes, but the follow-me function number of the position remains unchanged. You can still initiate a call to the in-position subscriber by dialing the follow-me function number. The information on the mappings between the telephone numbers and follow-me function numbers is saved in the HLR/Follow-Me Function Node (FFN). Currently, Huawei's FFN is integrated into the HLR. The FFN is a network node of the PLMN carrier. The FM data of remote subscribers is saved in the FFN. The HLR complies with the 3GPP 22.094 protocol. The HLR also supports storing, modifying, and querying the FM data, and configuring the range of the actual subscriber numbers. The subscriber of USSD service can register, deregister, and query the follow-me function numbers through the subscriber's terminal. Out of security consideration, the HLR supports authenticating rights of the FM service subscriber, including COR and authorization range. The HLR supports IN based FM service and MSC based FM service. The following defines the general terminologies adopted in the FM function. 3. Initial subscriber
Function description of HLR9820 V900R003C04
The initial subscriber can modify the FM data of a remote subscriber, so that a call to the remote subscriber can be forwarded to a mobile subscriber of the initial subscriber. An initial subscriber is correlated to multiple remote subscribers. In other words, calls to the remote subscribers can be forwarded to the same initial subscriber. 4. Remote subscriber The remote subscriber is a subscriber defined by the carrier, and serves as the callee of an FM call. The remote subscriber is a virtual subscriber, and is also a mobile subscriber in some special circumstances. The remote subscriber can be correlated to an initial subscriber. Any call to the remote subscriber is forwarded to the correlated initial subscriber. 5. Initial number The initial number refers to the MSISDN number of the initial subscriber. Any call to the remote subscriber is forwarded to the number. The MSISDN number must be the subscriber's basic MSISDN. 6. Remote number The remote number is a function number correlated to an initial subscriber. Generally, the remote number is a virtual number. In special circumstances, the remote subscriber is the PLMN GSM subscriber. In this case, the remote number is the subscriber's basic MSISDN number. 7. Potential initial subscriber Out of security consideration, not all subscribers can become the initial subscriber of a remote subscriber. Therefore, the carrier defines a potential subscriber for a remote subscriber in the FM functional node. Only an authorized subscriber can become the initial subscriber of the remote subscriber. 8. FM service manager The FM service manager is a special initial subscriber, and is entitled to cancel the forwarding correlation between a specified remote subscriber and an initial subscriber. The carrier configures the FM service manager in the FM functional node. Benefits:
Benefits for the carrier: The FM service is an important service of the GSMR cluster service. It can be used to provide dispatching for the railway, thus expanding the business scope of the carrier.
Benefits for the subscriber: The subscriber can dial the follow-me function number to call the in-position person of the MS, without being concerned about the subscriber number. The calling process is simple and quick. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
WHFD-573900 Function name: User-to-User Signaling (UUS) Specifications: 3GPP29002, 3GPP22087, 3GPP23087, 3GPP24087 Overview: The UUS service allows the subscriber to send and receive User-to-User Information (UUI) during the calling process. The UUI information is transparently transmitted over the network. Function description: The HLR supports storing, modifying, and querying the UUS subscription data. The HLR also sends the subscriber's UUS subscription data to the VLR. The UUS service also realizes the transfer of follow-me function numbers in the cluster system. The following describes the values of the UUS, based on the different phases of the UUI messages: 9. UUS1 The UUI is inserted into the call process control message transmitted between the caller and the callee. When a call connection is set up, the subscriber can insert the UUI information to activate to the UUS1 implicitly or select a suitable way to activate UUS1 explicitly. UUS1 can only be initiated by the caller, and can be carried over all control signalings. When the UUS1 is the implicit request of the caller, the callee's terminal does not make a response to the UUI from the caller, but inserts the UUI into the subsequent message. When the UUS1 is the explicit request of the caller, the callee's terminal needs to confirm it in the Alert message, and inserts the UUI into the subsequent message.
10. UUS2 After receiving an indicator from the other party of the call, the UUS subscriber can send and receive the UUI information. The UUS2 can be activated explicitly.UUS2 can only be initiated by the caller. The callee's terminal must confirm it in the Alert message. After UUS2 is confirmed, the caller and the callee can transfer the UUS through the User-User Info signaling before the callee makes a response. 11. UUS3 The subscriber can explicitly request the network to provide the UUS3 through the indicator in the SETUP message or the Facility message. Only the caller can request the network to provide UUS3 through the indicator in the SETUP message. The callee's terminal needs to confirm it in the CONNECT message. During the
Function description of HLR9820 V900R003C04
conversation period, both the caller and the callee can request the network to provide the UUS3 through the Facility message. Both parties must verify the Facility message. Once the UUS3 message is verified, both the caller and the callee can transfer the UUI through the User-User Info signaling during the conversation period. The service flows of MAP 1/MAP 2 support UUS1; the service flow of MAP 3 supports UUS1, UUS2 and UUS3. Benefits:
Benefits for the carrier: As an application scenario, the UUS1 enables the cluster system to realize the transfer of follow-me function numbers, confirmation of high-priority calls, and accurate addressing. It can also provide GSMR value-added service for the carrier.
Benefits for the subscriber: Under the GSMR system, the subscriber can realize transfer of follow-me function numbers, confirmation of high-priority calls, and accurate addressing. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol and must cooperate with the MSC/VLR. But there is no special requirement for MSC/VLR.
WHFD-570401 Function name: 1+1 Load-Sharing Redundancy Specifications: None.
Function description of HLR9820 V900R003C04
Overview: The HLR9820 supports 1+1 Load-Sharing Redundancy solution. Function description: The 1+1 Load-Sharing Redundancy solution is a real-time hot backup solution. The HLRs for mutual backup share the same HLR9820 version. The two HLRs serve as mutual backup, and process their respective services, and are in the status of taking over another HLR. Benefits:
Benefits for the carrier: The service can greatly improve the network availability. When one HLR becomes faulty, the other HLR takes over all services immediately. Advantages: The two HLRs operate simultaneously, and save the investment in the network.
Benefits for the subscriber: None. Requirements for other NEs: It is required to configure data in the STP/MSC and establish connections to the redundant HLR.
WHFD-570402 Function name: 1+1 Mated Redundancy Specifications: None. Overview: The HLR9820 supports the 1+1 Mated Redundancy solution. Function description: The 1+1 Mated Redundancy solution is a real-time hot backup solution. The active and standby HLRs share the same HLR9820 version. The active HLR processes all services; the standby HLR is ready to take over the services of the active HLR. Benefits:
Benefits for the carrier: The service can greatly improve the network availability. When the active HLR becomes faulty, the other HLR takes over all services immediately. When the active HLR is faulty, the subscriber can still enjoy various network services. Advantage: Once the standby HLR takes over the services of the active HLR, the capacity of the standby HLR is large enough. Besides, the daily maintenance of the standby HLR does not affect the normal running of the active HLR.
Benefits for the subscriber: None.
Function description of HLR9820 V900R003C04
Requirements for other NEs: It is required to configure the corresponding data in the STP/MSC, and establish connections between the STP/MSC and the redundant HLR. WHFD-570501 Function name: N+1 Mated Redundancy Specifications: None. Overview: The HLR9820 supports N+1 Mated Redundancy solution. Function description: The N+1 Mated Redundancy solution adopts Huawei's HLR9820 of the same version as the active and standby HLRs. The redundant HLR provides service backup for N active HLRs. The active HLR processes the services. The redundant HLR is ready to take over the services of the active HLR.In this solution, the redundant HLR can take over the services of multiple active HLRs simultaneously, as long as the total capacity of these active HLRs is slightly smaller than that of the redundant HLR. Benefits:
Benefits for the carrier: The service can greatly improve the network availability. When the active HLR becomes faulty, the other HLR takes over all services immediately. Advantage: Multiple HLRs share an HLR disaster center, saving the subscriber's investment.
Benefits for the subscriber: None. Requirements for other NEs: It is required to configure the corresponding data in the STP/MSC, and establish connections between the STP/MSC and the redundant HLR. WHFD-570502 Function name: N+1 Compatibility Redundancy Specifications: None. Overview: The HLR9820 supports the N+1 Compatibility Redundancy solution. Function description: In the N+1 Compatibility Redundancy solution, the active HLR can be the HLR of various vendors. There is only one redundant HLR, which can take over the services of N active HLRs. The active HLR processes the services; the redundant
Function description of HLR9820 V900R003C04
HLR is ready to take over the services of the active HLR. In this solution, the redundant HLR can take over the services of multiple active HLRs simultaneously, as long as the total capacity of these active HLRs is slightly smaller than that of the redundant HLR. Benefits:
Benefits for the carrier: The service can greatly improve the network availability. When the active HLR becomes faulty, the other HLR takes over all services immediately. Advantages: Multiple HLRs share an HLR disaster center, saving the subscriber's investment.
Benefits for the subscriber: None. Requirements for other NEs: It is required to configure the corresponding data in the STP/MSC, and establish connections between the STP/MSC and the redundant HLR.
WHFD-010300 Function name: Seamless Geography Redundancy Specifications: None. Overview: The HLR supports self-backup. In the overall system of the HLR, the data nodes are presented to the service nodes as a whole. Due to the separation of the data from services, the redundancy solution is only implemented in the data layer. The variation in the service layer does not affect the implementation of the redundancy solution in the data layer. Compared with traditional HLR service layer redundancy solutions, this solution enjoys many advantages. In the traditional HLR, if it is necessary to modify the service logics, the synchronization configurations of the redundant HLR must be modified accordingly. For example, in the process of synchronizing the dynamic data, if the MAP configurations are modified or added, you must modify the logic module used for private commands conversion The redundancy function is closely associated to the service processing. This brings about tremendous inconvenience to the realization of the redundancy function. Function description: The data node redundancy solution supports self-redundancy. In other words, the data nodes realize self-redundancy without deploying independent redundant HLR as required in the traditional HLR redundancy solution. For the convenience of illustration, the following describes a data layer 1+2 redundancy solution. See the figure below.
Function description of HLR9820 V900R003C04
In the above figure, sites 1, 2, and 3 are the active sites. No site serves as the standby one, because the data nodes realize the redundancy internally. The service node does not have to figure out which DSU in which cluster provides service for itself. It only needs to send a request to the data layer. In the data layer, the data nodes are deployed in the form of cluster. A cluster contains three nodes: one master node and two slave nodes. The three nodes have the same data. The master node processes its own data and synchronizes its data to the slave nodes in other sites. In a cluster, as long as one node is normally available, the services of the cluster remain normal. When the master node is faulty, the system automatically elects a new master node from the two slave nodes, and then switches the services to the new master node within milliseconds to ensure uninterrupted service provisioning to the service layer. During the system running process, the master node is dynamic. Besides, the system supports automatic fault isolation. A faulty node in the cluster is not allowed to participate in the election of new master node until it recovers from the fault and broadcasts the recovery information to other nodes. The data layer is divided into two parts: routing module DRU and data storage module DSU. The data deployment and synchronization mechanism complies with the above description. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The HLR in data layer redundancy solution is a self-redundancy system. The networking of the HLR in this solution is different from that of the HLR in traditional redundancy solution. Every data site is the active one and has backup data. In the traditional HLR redundancy solution, an independent redundant HLR must be deployed. In comparison, the data layer redundancy solution has much higher equipment utilization rate. The HLR self-redundancy solution adopts mesh topology, with data distributed in different nodes. Its data reliability and security is far higher than that of the traditional redundancy solution. Due to its high utilization rate and high reliability, the data layer redundancy solution can reduce the carrier's CAPEX and OPEX, and enhance the carrier's comprehensive competitiveness.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.
1.3 Additional Function Description WHFD-030800 Function name: Explicit Call Transfer (ECT) service Specifications: 3GPP23091 Overview: The ECT function allows a subscriber to transfer an incoming/outgoing call to a third party and then exit the conversation. Before subscription of the ECT service, the subscriber must have subscribed to the call hold service. The ECT service also allows a subscriber to connect two calls (A-B call and A-C call) into a call between two parties (B-C call), and then exit the call. The A-B/A-C call can be either an incoming call or an outgoing call. Before the call transfer, the A-B call connection must have been established. The A-C call connection may have been established, or subscriber C is in ringing status. Function description: Subscriber A has subscribed to the ECT service. When subscriber A has to handle two calls with subscriber B and subscriber C simultaneously (each of the two calls
Function description of HLR9820 V900R003C04
can be either an incoming call or an outgoing call), he/she can establish a call connection between subscriber B and subscriber C, and then exit from the call connection between subscriber B and subscriber C. Before the call transfer, the A-B call connection must have been established. The A-C call connection may have been or may have not been established. The network equipment decides whether the ECT function is supported. If the network equipment supports the ECT, it notifies subscriber C of the call transfer. The subscriber's terminal can enable the ECT through a menu or the USSD operation. Benefits: 1. Benefits for the carrier: Provide the ECT service as a supplementary service, satisfy the subscriber's requirement for the service, and boost the revenue of the carrier. 2. Benefits for the subscriber: The subscriber can conveniently establish a call connection between other two parties and exit the call connection. Requirements for other NEs: The HLR realizes the function in compliance with the standard protocol by cooperating with the MSC and VLR. There is no special requirement on these NEs. WHFD-040600 Function name: ODB PS Specifications: 3GPP29002 Overview: With the ODB PS function, the carrier can limit the subscriber's access to the Barring of Packet Oriented Services. Function description: The ODB PS function can limit the rights of a subscriber in using services of the packet service (PS) domain. 1. Disable the barring of the packet services 2. Enable the barring of all packet services. 3. Enable the barring of packet service when the access point is in the HPLMN and the subscriber roams in the VPLMN. 4. Enable the barring of packet service when the access point is in the VPLMN and the subscriber roams in the VPLMN.
Function description of HLR9820 V900R003C04
Benefits: 5. Benefits for the carrier: Through the function, you can make all packet services inaccessible to a defaulting subscriber, bar the subscriber from using the Packet Oriented Services. 6. Benefits for the subscriber: When an accident takes place, a subscriber can bar all packet services through the carrier to prevent further loss. Requirements for other NEs: When working with the SGSN/GGSN, the HLR realizes the function through the standard protocol. There is no special requirement on SGSN/GGSN. WHFD-050400 Function name: Automatic prefix addition for IP calls Specifications: None Overview: When a subscriber dials a toll call, the service can automatically precede the toll call number with an IP number specified by the carrier (such as 17951 and 17911). Through the service, the subscriber does not have to add an IP number before the toll call number, and the system can automatically convert the dialup mode into IP phone call dialup mode. Function description: The service applicant is generally a mobile service subscriber. The carrier can specify the prefix of the IP call. Consequently, the subscriber can initiate an IP call without dialing the IP prefix. The toll call will be charged according to the rate of a toll call. A subscriber of the service can also make a local call. But the call is not routed over the IP telephone network. The routes of other calls are the same as that of the IP call with the dialed number consisting of the IP prefix and called number. Benefits: 1. Benefits for the carrier: The service can make the dialup of an IP phone call very convenient, thus attracting more subscribers to make IP toll calls. 2. Benefits for the subscriber: The subscriber can make an IP toll call without dialing the IP prefix. Requirements for other NEs:
Function description of HLR9820 V900R003C04
The service is a non-standard service. The implementation of the service requires the cooperation between the HLR and Huawei MSC/VLR. WHFD-050500 Function name: North American Equal Access (NAEA) Specifications: 3GPP29002 Overview: The NAEA service allows the subscriber to select a desired long-distance network. When the subscriber's terminal is powered on, it specifies a long-distance network as the default long-distance network. When making a toll call, the subscriber can use the long-distance network. You can modify the long-distance network carrier information for the mobile subscriber. Function description: When making a toll call, a subscriber needs to select a desired long-distance network carrier. A mobile carrier may capitalize on its advantages in access network to force the subscriber to select its own long-distance network. The NAEA service is intended to avoid unequal competition in the selection of long- distance network carrier. The mobile carrier must provide a function that allows the subscribers themselves to select desired long-distance network carriers and realizes equality in accessing the long-distance networks. The service is implemented according to standard protocols. To ensure equality in long-distance network access, every toll call service carrier is allocated a carrier ID code (CIC). The subscriber specifies a toll call service carrier at the time of subscription. After a subscriber signs an agreement with a toll call service carrier, the subscriber can select the long-distance network of the carrier by dialing the CIC of the carrier. The service supports two application modes: preset CIC and CIC dialing. The HLR supports configuring the preset network selection attribute, which realizes equal network access. When the location of an MS is updated, the HLR sends the information on the preset network selection attribute of equal access to the VLR. Benefits 1. Benefits for the carrier: The service allows the subscriber to freely select the desired long-distance network carrier, and promote fair competition among long-distance network carriers. It can bring about many benefits to the long-distance network carrier, thus attracting more customers for the mobile carrier. 2. Benefits for the subscriber: This service allows a subscriber to select a desired toll call service carrier according to his/her own preference, call rate, and network coverage.
Function description of HLR9820 V900R003C04
Requirements for other NEs: When working with the MSC/VLR, the HLR realizes the function through the standard protocol. There is no special requirement on MSC/VLR. WHFD-050700 Function name: Barring of all Outgoing calls when Roaming Outside HPLMN-country (BORO) Specifications: None Overview: When a subscriber of the service roams outside HPLMN-country, the service bars all outgoing calls. Function description: When a subscriber roams within the HPLMN-country, the activated BORO service has no impact on the subscriber. When the subscriber roams outside the HPLMN-country, the activated BORO, similar to the activated BAOC service, bars all outgoing calls of the subscriber. The BORO service is not a standard supplementary service. There is no allocated supplementary service code for it. The subscription, registration, and deregistration operations for the service can only be accomplished by the operator. Benefits 1. Benefits for the carrier: Through the BORO service, the carrier can conveniently bar all outgoing calls from a subscriber. 2. Benefits for the subscriber: None Requirements for other NEs The HLR realizes the function internally. There is no special requirement on the external NE.
WHFD-550100 Function name: Advice of Charge Information supplementary service and Advice of Charge Charging supplementary service (AoCI & AoCC) Specifications: GSM0204 3GPP29002
Function description of HLR9820 V900R003C04
Overview: There are two types of charge information notification supplementary services:
AoCI service
AoCC service Function description: The AoCI service realizes real-time call charge display. After a subscriber registers the AoCI service, the network equipment sends Charge Advice Information (CAI) to the subscriber. The MS can calculate the call charge automatically according to the CAI. The subscriber can display the charge of a call by selecting a menu item, and total up the call charges. If the Visited PLMN (VPLMN) does not support the AoCI service, the MS that has subscribed to the AoCI service can initiate a phone call, but cannot calculate call charge. The settlement of the charge of the AOCI service is carried out by the network equipment. The mobile subscriber can only obtain the charge information of a call. Besides all functions of AOCI, the AoCC service also supports totaling up the call charges, and saving the result in the SIM/USIM. If the total call charge reaches the maximum value specified in the SIM/USIM, the service bars all outgoing calls (except the emergency call) and free incoming calls. The service is not targeted at the subscriber of the service, but the user of the MS specified by the subscriber of the service. After a call finishes, the user of the MS pays the call charge for the subscriber of the service. The charge of the AOCC service is settled in the MS. The MSC sends call rate information to the MS. The MS must support Phase2 standards. The SIM card dedicated for the service must be made available. If the VPLMN does not support the AoCC service, it refuses the request for updating location information from an MS that has subscribed to the AoCC service, making the MS unable to make any call (except the emergency call). This service is applicable to the business of leasing SIM/USIM card. The person who rents the SIM/USIM card pays the call charge to the holder of the SIM/USIM card according to the call charge records; the holder of the SIM/USIM card settles the call charge with the carrier. Benefits: 1. Benefits for the carrier: The charge information notification service enables the provisioning of more services, such as MS lease and real-time call charge display. Consequently, the carrier can attract more subscribers and enhance its competitive edge. 2. Benefits for the subscriber: By subscribing the charge information notification supplementary services, the subscriber can establish charging related business. For example, the subscriber can lease its MS to others and collect rent according to the call charges. When a subscriber is in business journey, the subscriber can purchase a temporary card. The card can only be used for one time and is not rechargeable. The subscriber does not need to pay the subscription fee and number fee. The MS cannot roam or can only roam within a province. The call charge calculation is made at the MS, and the network equipment cannot provide information on the account balance of the MS. Therefore, the temporary card can avoid high expense in roaming.
Function description of HLR9820 V900R003C04
Requirements for other NEs: The terminal must support the service. WHFD-570600 Function name: Call Forwarding Announcement Suppression Specifications: None Overview: The HLR supports enabling/disabling the call forwarding announcement suppression function for some special forwarded-to numbers (Ftn). When a call is to be forwarded to one of these Ftns, the system plays announcement or suppresses announcement playing for the caller. The function is of system-level function, with priority higher than that of call forwarding configuration selected by the subscriber at the time of service subscription. Function description: The call forwarding supplementary service contains the subscription item: call forwarding announcement. The options for configuring the subscription item include "yes" and "no". The subscription item is provided for a type of call forwarding service, and is a part of the subscription data of the subscriber. The subscription item must be configured when a subscriber subscribes to the call forwarding service. Provided that the subscription item has been configured for subscriber B, and subscriber B has registered a call forwarding service, which allows a call for subscriber B to be forwarded to subscriber C. When subscriber A calls subscriber B and the call forwarding mechanism is triggered, subscriber A hears a prompt tone, indicating that the call is forwarded. If the subscription item is not configured, subscriber A cannot hear the prompt tone. The parameter is configured on the basis of an individual subscriber. The Call Forwarding Announcement Suppression attribute belongs to system data, is configured especially for an Ftn, and is effective to all call forwarding services. The options for configuring the Call Forwarding Announcement Suppression attribute include "yes" and "no". The priority of system data is higher than that of the subscriber's subscription data. For example, the Call Forwarding Announcement Suppression attribute is enabled for the number 90099. When a call to a subscriber is forwarded to the number, the caller cannot hear the prompt tone. The Call Forwarding Announcement Suppression function is implemented by the HLR independently. You can configure and query the call forwarding announcement suppression data in the HLR. The HLR sends the Call Forwarding Announcement flag to the VLR and the GMSC. Benefits: 1. Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service provides additional functions for call forwarding services, and allows the carrier to control call forwarding announcement. 2. Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement on the external NE. WHFD-570800 Function name: Origin for Forwarded-to Number Analysis (OFA) Specifications: None Overview: The function controls the range of Ftns through a subscriber's subscription template. Function description: The function of the OFA is similar to that of the prohibited Ftn table in the global table. But the prohibited Ftn table takes effects globally, and is effective to all subscribers. In the HLR, the basic mechanism of the OFA service is to define OFA templates. The OFA template specifies the numbers to which a call can be forwarded, and the numbers to which a call is prohibited to be forwarded. For example, a subscriber fills in an OFA template when registering a call forwarding service. When registering the Ftns, the HLR compares these Ftns with prefixes in the OFA template. If the Ftns match the prefixes in the OFA template, these Ftns can be processed according to the rules defined in the template. The OFA template also supports a default forwarding rule, which decides whether an Ftn not matching any prefix can be registered. When subscribing a call forwarding service (CFU, CFB, CFNRy, and CFNRc), a subscriber can fill in an OFA template. The ID of an OFA template is specified when the subscriber subscribes to the call forwarding service. The contents of an OFA template are defined by the operator. The ID of an OFA template is unique. The OFA function is realized by the HLR independently. Benefits: 1. Benefits for the carrier: This function allows the carrier to manage the call forwarding service flexibly, and to prevent the subscriber from registering illegal numbers. 2. Benefits for the subscriber:
Function description of HLR9820 V900R003C04
Through the function, the subscriber can limit the range of Ftns, and avoid forwarding a call to an undesired number due to operation error. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement on the external NE. WHFD-571900 Function name: Voice & Videophone Dual Number (VVDN) Specifications: 3GPP29002 Overview: The HLR allows a subscriber to adopt different numbers for the video call and the voice call. Function description: The VVDN service allows a subscriber to adopt different numbers for voice calls and videophone calls. The caller ID display is based on the call type. When a subscriber initiates a voice call, the MS of the callee displays the voice call number of the subscriber; if the subscriber initiates a video call, the MS of the callee displays the video call number of the subscriber. Benefits 1. Benefits for the carrier: The VVDN service helps to attract subscribers with special requirements, and to boost the competitiveness of the carrier. 2. Benefits for the subscriber: The VVDN service allows a subscriber to adopt different numbers for voice calls and videophone calls. Requirements for other NEs When working with the MSC/VLR, the HLR realizes the function through the standard protocol. There is no special requirement on the MSC/VLR.
WHFD-560400 Function name: ATM 2M Specifications: None
Function description of HLR9820 V900R003C04
Overview: Huawei's HLR supports ATM 2M links. Function description: The HLR9820 supports providing ATM bearer through E1 reverse multiplexing (also ATM 2M).The protocol stack is MTP3B/SAAL/ATM/E1. The upper layer protocol supports the transmission of the MAP signaling. Benefits: 1. Benefits for the carrier: This function can provide flexible networking solutions for the carrier, and allows the carrier to utilize the existing equipment and transmission resources and reduce the construction cost. 2. Benefits for the subscriber: None. Requirements for other NEs: The peer end NE must share the same network interface. WHFD-010000 Function name: HLR Distributed Deployment Overview: The HLR of the latest generation adopts the distributed architecture and supports detached networking. Logically, the architecture of the HLR is divided into four layers: protocol access layer, service processing layer, data service layer, and data storage layer. The data processing and service processing are implemented in different layers. Refer to the figure blow:
Function description of HLR9820 V900R003C04
The protocol access layer and the service processing layer are integrated into the front end (FE) for processing signaling and service logics. The data service layer and the data storage layer are integrated into the back end (BE) for storing and managing data and providing data service for the upper layer. The logic function is deployed in a physical entity. That is, the data node and the service node can be deployed either as an integrated entity or separately. WHFD-010100 Function name: Front End Distributed Deployment Specifications: None. Overview: The HLR consists of service nodes and data nodes. An HLR may contain multiple service nodes. These service nodes can be deployed as a physical entity (unified deployment) or separately (distributed deployment). In the unified deployment, the service nodes operate in the same physical entity; in distributed deployment, the service nodes operate in different physical entities. The service nodes work in load sharing mode. When a service node is faulty, other service nodes take over the task of the service node to ensure the normal operation of the system. When the distributed deployment is adopted for the service nodes, the service nodes can be distributed geologically. When the service nodes intend to communicate with an NE, the system establishes a connection between the NE and the nearest service node. Function description:
Function description of HLR9820 V900R003C04
The service nodes of the HLR mainly accomplish the processing of signaling and service logics. The service nodes deployed in different locations are disaster tolerant, and work in load sharing mode. The figure below shows a deployment mode.
The service nodes of the HLR include two modules:
Signaling Access Unit (SAU)
Service Control Function (SCF) The SAU works in load sharing mode, and sends services to the SCF modules according to the dialogue number of the TCAP and the load sharing principle. The SCF module also works in load sharing mode, and distributes data requests to
Function description of HLR9820 V900R003C04
DRU modules. The figure below shows the internal modules of the service node.
Benefits: 1. Benefits for the carrier: Separation of services from data enables the service node to concentrate on signaling access and service processing. It also brings convenience and flexibility to the carrier. In the case of distributed deployment, requests from the local MSC are sent to the local service node directly, without forwarding by the STP. Working in load sharing mode, the service nodes have greatly enhanced the network reliability. When the network capacity is insufficient, you can expand the network capacity by adding service nodes to the network. 2. Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement on the external NE.
WHFD-010200 Function name: Back End Distributed Deployment Specifications: None. Overview: The HLR consists of service nodes and data nodes. An HLR may contain multiple service nodes. These service nodes can be deployed as a physical entity (unified deployment) or separately (distributed deployment). In the unified deployment, the service nodes operate in the same physical entity; in distributed deployment, the service nodes operate in different physical entities. The data nodes can be deployed in different locations. Each node stores all subscriber data. The subscriber data in these nodes are well synchronized. In this way, the data nodes become disaster tolerant. The data node stores the subscriber data of the service nodes, and allows the service node to add, delete, update, and query data.
Function description of HLR9820 V900R003C04
Function description: The data nodes of the HLR are:
Service Management Function (SMF)
Data Request Unit (DRU)
Data Service Unit (DSU)
Service Management Unit (SMU) The SMF manages the subscriber data, and works in load sharing mode. The SMF node processes MML commands of the BOSS forwarded by the SMU server. During the processing, the SMF forwards the data requests to the DRU for processing. The DRU node queries the routing table according to the key (IMSI or ISDN) in the requests from the SCF and the SMF, and forwards the data requests to the DSU. The DRU works in load sharing mode. Each DRU contains all routing data. The DRU distributes the data requests to DSU clusters according to the routing information. The DSU stores subscriber data in a distributed manner, and provides data access service. Several DSUs comprise a DSU cluster. Each DSU cluster is responsible for a portion of the subscriber data; all DSU clusters are responsible for all subscriber data. These data are stored in the HLR memory databases. The SMU provides MML interfaces for the BOSS, converts MML commands into internal modification commands, and forwards them to the SMF. Currently, the SMU works in active/standby dual-host mode. The data node is also referred to as the back end (BE). The DRUs and the DSUs are deployed separately in clusters. The DRUs and DSUs in the same cluster have the same data, and work in active/standby load sharing mode. The figure below shows the deployment of data nodes.
Benefits: 1. Benefits for the carrier: The data node supports distributed deployment. The data nodes are disaster tolerable, greatly increasing the data security. Meanwhile, the data node is deployed separately from the service node. The disaster in the data nodes does not affect the service data. Therefore, the carrier can maintain the network conveniently and flexibly. The data management adopts the load sharing mode. When a node becomes faulty, it does not affect the running of the whole system, greatly improving the system reliability.
Function description of HLR9820 V900R003C04
2. Benefits for the subscriber: None. Requirements for other NEs: The HLR is integrated with the function. There is no special requirement on the external NE. 1.4 Virtual HLR Function WHFD-570200 Function name: Virtual HLR function Overview: When the HLR provides services for subscribers in multiple areas, multiple virtual HLRs can be defined in a physical HLR, with each virtual HLR corresponding to an area. Through the virtual HLR function, the maintenance personnel in an area can only maintain the information of the subscribers of the corresponding area. Meanwhile, the virtual HLR function allows the maintenance personnel to collect statistics on the subscribers and the utilized services in every area and to improve the operability. Presumably, the HLRs are deployed in areas with sparse mobile subscriber distribution in line with the traditional HLR deployment solution, and an HLR is deployed in each area. Consequently, the capacity of each HLR cannot be put into full play. For the purpose of saving investment, the virtual HLR technology can be employed to store the data of the subscribers in these areas in a physical HLR in a centralized way, and divide the physical HLR into multiple virtual HLRs logically. Through right allocation, different maintenance personnel handle the subscriber data in the virtual HLR of different area. Additionally, the new-generation HLR is carrier-class large-capacity HLR. It adopts the virtual HLR technology to facilitate the management of carriers and facilitate business operation. In the actual business operation, you can configure the upper limit of the subscriber quantity in every virtual HLR and adjust the capacity of every virtual HLR. Every virtual HLR is configured with a subscriber template to provide differentiated service. WHFD-570300 Function name: Number Segment-Based Virtual HLR Specifications: None. Overview: Huawei's HLR supports the number segment based virtual HLR.
Function description of HLR9820 V900R003C04
Function description: The HLR supports defining the virtual HLRs based on number segments. Different operator has different allocated IMSI/MSISDN number segment. Only the authorized operator can handle the subscriber data of a specified number segment. The carrier can allocate a number segment to an area, and define the operators for the HLR. The operator maintains a virtual HLR as if the virtual HLR is an independent HLR. Actually, these virtual HLRs are maintained in a unified manner. Benefits:
Benefits for the carrier: The service enables the carrier to deploy a physical HLR for multiple areas for saving investment. Meanwhile, the operation of an area can operate the virtual HLR conveniently as if the virtual HLR is a real HLR. The system operability is very high.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-570400 Function name: HLRSN-Based Virtual HLR Specifications: None. Overview: The HLR supports defining the virtual HLR based on HLR Serial Number (HLRSN). The HLRSN is the unique identifier of every virtual HLR. Function description: The HLR uses the HLRSNs to identify the data of different carriers, and allocates the HLRSNs to different operators. An operator can only handle the subscriber data of the allocated HLRSN. The division of global data and template data is based on the HLRSN. Since every virtual HLR supports the HLRSN attribute, the subscriber data, global data, template data, and authentication data are divided on the basis of HLRSN. Every virtual HLR has its own service data (including subscriber data, global data, template data and authentication data). Therefore, every virtual HLR can provide service independently. The HLR can provide differentiated services for every area according to the actual circumstance of every area. A physical HLR can configure data based on HLRSN to realize multiple independent virtual HLRs. Benefits:
Benefits for the carrier:
Function description of HLR9820 V900R003C04
The service enables the carrier to deploy a physical HLR for multiple areas for saving investment. Meanwhile, the operation of an area can operate the virtual HLR conveniently as if the virtual HLR is a real HLR. The system operability is very high.
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs. WHFD-570500 Function name: Authority-Based and Domain-Based Management Specifications: None. Overview: The authority/domain based management is intended to satisfy the requirements in the management of virtual HLRs. The operators are divided into multiple levels, and the operators of every level have their own operation rights and number segment. Different operator has different allocated virtual HLR. Function description: The operators of virtual HLRs are divided into 3 levels:
Operators of level 1 can manage all subscriber data of the HLR.
Operators of level 2 can manage all subscriber data of a virtual HLR.
Operators of level 3 can manage all subscriber data of a portion of a number segment in a virtual HLR. The attributes of an operator include:
Name and password of the operator
Virtual HLRSN
Allocated subscriber segment (note: The level-1 operator has no such attribute; the number segment of a level-2 operator is that of the corresponding virtual HLR; the number segment of a level-3 operator is the subset of the number segment of the corresponding virtual HLR)
MML commands Provided that the subscribers of an HLR are distributed over a province. The level-1 operator handles the province-level services; the level-2 operator can handle county/city-level service; the level-3 operator can handle services under the city/county level. The HLR has defined an overall IMSI/MSISDN number segment. The number segment for an operator must fall within the number segment. Benefits:
Benefits for the carrier: The service can improve the operability and network operations security.
Function description of HLR9820 V900R003C04
Benefits for the subscriber: None. Requirements for other NEs: The HLR realizes the function internally. There is no special requirement for other NEs.