KR20150023156A - Method and apparatus for updating quality information of service - Google Patents

Abstract

The present invention relates to a method and an apparatus for updating quality information of service. The method for updating quality information of service comprises the steps of: receiving a service policy answer message to a service policy request message; transmitting a modify bearer answer message based on the service policy answer message through a downstream path in accordance with a call processing path; determining whether information related to quality of service included in the service policy answer message is different from a preset information related to the quality of service by comparison; and transmitting a update bearer request message for updating the information related to the quality of service through the downstream path if they are different from each other as a determination result. When a state information changing event, which switches a mobile communication terminal from an idle state to an active state, occurs, the update bearer request message is transmitted right after the modify bearer answer message is transmitted. Therefore, a service policy can be initialized under the condition that the state information changing event occurs, and radio resources can be efficiently operated by selectively applying carrier aggregation (CA) services according to the types of data services.

Description

TECHNICAL FIELD [0001] The present invention relates to a service quality information update method,

The present invention relates to a service quality information update method and apparatus, and more particularly, to a method and apparatus for updating quality information of a service to be provided to a mobile communication terminal apparatus.

As is known, in 3GPP Release 8, EPC (Evolved Packet Core), which is a network architecture, is described as one of mobile communication systems. EPC is a set of network nodes for 3GPP LTE (Long Term Evolution) system. The EPC evolves the core network of the existing 3GPP system architecture to support Evolved-UMTS Terrestrial Radio Access Network (E-UTRAN), which is an evolved RAN, And has an efficient network structure that simplifies the network node. A wireless communication system including an EPC and an E-UTRAN may be referred to as an evolved packet system (EPS) and corresponds to an LTE mobile communication system currently in service in Korea.

The EPC for the LTE mobile communication system is largely divided into three logical entities such as MME (Mobility Management Entity), SGW (Serving Gateway), and PGW (Packet Data Network Gateway).

Among them, the MME handles the signal control between the eNodeB serving as the base station and the SGW, and determines the routing for the transmission data of the mobile communication terminal device. The MME performs paging message distribution to the eNodeB, non-access spectrum (NAS) signaling, intra-network handover control, tracking area list management, and the like. In addition, the MME performs selection of SGW and PGW, selection and change of MME for handover, terminal authentication, and the like.

The SGW is a user plane node that performs session control for processing payload traffic according to a set session. It interfaces with eNodeB and S1-U interface, supports handover in 3GPP, sets up PGW and EPS bearer, and delivers PDU (Packet Data Unit) using tunneling.

The PGW is a user plane node that assigns an IP address of a mobile communication terminal device and performs session control in cooperation with an external Internet network and a non-3GPP network. Maintains SGW and external network and routing information for packet service, and performs tunneling and IP routing functions.

In recent years, an LTE-A (LTE Advanced) service has been commercialized, which focuses on using a plurality of LTE bands as one band using a technique called Carrier Aggregation (hereinafter referred to as "CA"). The LTE-A service supports a communication speed as high as an increased bandwidth due to the frequency aggregation technology, and an LTE-A modem must be installed in a mobile communication terminal device.

Therefore, in the mobile communication service system, whether or not an LTE-A modem is installed in the mobile communication terminal device and can receive the CA service is managed through a user profile, and an LTE-A modem The CA service is selectively provided only to the mobile communication terminal device that has been confirmed to be mounted.

However, the spread of the mobile communication terminal device equipped with the LTE-A modem is continuously increasing, and the increase of the mobile communication terminal device capable of CA service is a large proportion of the service capacity in the mobile communication service system It is necessary to manage radio resources efficiently through efficient management.

Korean Patent Publication No. 10-2012-0133982, published on December 11, 2012.

According to an embodiment of the present invention, in order to selectively operate a radio resource by selectively applying a CA service according to a type of a data service, a mobile communication terminal apparatus is changed from an idle state to an active state A service quality information update method and apparatus capable of initializing a service policy in a situation where a change event of state information to be switched occurs.

The problems to be solved by the present invention are not limited to those mentioned above, and another problem to be solved can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a method for updating service quality information, the method comprising: receiving a service policy response message according to a service policy request message; receiving a bearer modification response based on the service policy response message Comparing the service quality related information included in the service policy response message with predetermined service quality related information to determine whether the information is different from each other; And transmitting a bearer update request message for updating the service quality-related information through the bearer update request message.

According to another aspect of the present invention, there is provided a service quality information update apparatus including a message reception unit for receiving a service policy response message according to a service policy request message, a service quality information management unit for managing service quality related information included in the service policy response message, And transmits a bearer modification response message based on the service policy response message through a downlink path according to a call processing path, and when the downlink path is different according to a result of the determination, And a message transmission unit for transmitting a bearer update request message for updating the service quality related information.

According to an embodiment of the present invention, a bearer update request message is continuously transmitted after a bearer update response message is transmitted in a situation where a change event of status information for switching from an idle state to an active state occurs, The service policy can be initialized in a situation where a change event of the service policy is generated.

Accordingly, the CA service can be selectively applied to each kind of data service, and the wireless resources can be efficiently operated.

1 is a network configuration diagram of a mobile communication system to which a service quality information updating apparatus according to an embodiment of the present invention can be applied.
2 is a block diagram of a service quality information updating apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a service quality information update method according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a network configuration diagram of a mobile communication system to which a service quality information updating apparatus according to an embodiment of the present invention can be applied, and shows an LTE mobile communication system capable of providing an LTE-A service. The service quality information updating device (reference numeral 200 in FIG. 2) according to the embodiment of the present invention may be installed in the PGW 160 shown in FIG. 1 or interworked with the PGW 160 in a separately installed state.

1, the LTE mobile communication system includes an eNodeB 100, an MME (Mobility Management Entity) 140, a SGW (Serving Gateway) 150, a PGW (Packet Data Network Gateway) 160, a PCRF Charging Rule Function 170, Home Subscriber Server (HSS) 180, Deep Packet Inspection (DPI) 190, and the like.

Reference numeral 120 in FIG. 1 denotes a service area of the eNodeB 100, and reference numerals 131 to 134 denote a plurality of cells existing in the service area 120. A plurality of mobile communication terminal apparatuses 111 to 116 are located in the plurality of cells 131 to 134 and can receive voice communication service and data communication service. Of course, the number of cells 131 to 134 and mobile communication terminal devices 111 to 116 in the service area 120 shown in FIG. 1 is only an example.

The mobile communication terminal units 111 to 116 are located in any one of a plurality of cells 131 to 134 existing in the service area 120 of the eNodeB 100 and are provided with data communication services. For example, the mobile communication terminal devices 111 to 116 may be implemented in various forms such as a smart phone, a notepad, a tablet computer, and the like.

The eNodeB 100 communicates with the mobile communication terminals 111 to 116 to serve as a base station for ensuring mobility. The eNodeB 100 includes a radio bearer control, a radio admission control, a connection mobility control, a dynamic resource allocation to the mobile communication terminals 111 to 116, ), And the like. In addition, IP header compression and encryption of user data streams, routing of user plane data to SGW 150, scheduling and transmission of paging messages, scheduling and transmission of broadcast information, And performs measurement and measurement report settings for mobility and scheduling.

The MME 140 takes charge of signal control between the eNodeB 100 and the SGW 150 and determines the routing for the transmission data of the mobile communication terminal units 111 to 116. The MME 140 performs paging message distribution to the eNodeB 100, non-access spectrum (NAS) signaling, intra-network handover control, tracking area list management, and the like. In addition, the MME 140 performs selection of the SGW 150 and the PGW 160, selection and change of the MME 140 for handover, terminal authentication, and the like. The MME 140 may be configured to process a control signal when there is a combination request from the mobile communication terminal apparatuses 111 to 116 or another network node such as the PGW 160 or SGW 150 or a radio bearer setup request Etc., and receives subscriber profile information, authentication and location-related data from the HSS 180, and establishes settings of an ESP bearer (Evolved Packet System bearer) or an IP tunnel , And mobility management.

The SGW 150 is a user plane node that performs session control for processing payload traffic according to a set session. U interface to the eNodeB 100, supports a handoff in the 3GPP, sets up the EPS bearer with the PGW 150, and delivers PDU (Packet Data Unit) using tunneling. The SGW 150 selects the PGW 160 based on the subscriber profile, and generates billing data for mutual settlement with the PGW of the home network when the call is an inbound roaming call.

In particular, the SGW 150 transmits a modify bearer request message to the PGW 160 when the status change information of the mobile communication terminal units 111 to 116 is changed from the idle state to the active state , And receives a modify bearer answer message including the service quality-related information from the PGW 160. When the service quality-related information determined by the PCRF 170 is included in the bearer update request message from the PGW 160, the PGW 160 transmits the service quality-related information to the eNodeB 100 so that the CA service can be selectively applied to the eNodeB 100 do.

The PGW 160 is a user plane node that assigns an IP of the mobile communication terminal units 111 to 116 and performs session control in cooperation with an external Internet network and a non-3GPP network. Maintains routing information with the SGW 150 and the external network for packet service, and performs tunneling and IP routing functions. In addition, the PDU is delivered to the SGW 150 and the external network. When the PGW 160 is a local call, the PGW 160 performs a charging process.

In particular, the PGW 160 may be interfaced with a service quality information updating apparatus (reference numeral 200 in FIG. 2) or a separately installed service quality information updating apparatus (reference numeral 200 in FIG. 2) according to an embodiment of the present invention .

The PGW 160 receives the bearer modification request message including the change event for the status information of the mobile communication terminal units 111 to 116 and identifies the change event of the status information based on the received bearer modification request message And transmits the generated message to the PCRF 170 according to the call processing path. In addition, the PGW 160 transmits the bearer modification response message based on the service policy response message through the downlink path according to the call processing path, and transmits the service quality related information and predetermined service quality related information included in the service policy response message And transmits the bearer update request message for updating the service quality related information through the downlink path when the result of the determination is different.

The PCRF 170 provides a dynamic QoS (Quality of Service) and a charging rule according to a service data flow to perform a communication policy and a charging process in the communication network.

In particular, the PCRF 170 receives a message including the identification information of the change event of the status information by the mobile communication terminal devices 111 to 116 from the PGW 160, receives the service type of the data packet from the DPI 190 As shown in FIG. The PCRF 170 determines service quality-related information for each service type for the mobile communication terminal devices 111 to 116, transmits a message including the determined service quality-related information, and transmits service quality-related information to the eNodeB 100 .

The HSS 180 is a network node including a data base including subscriber information for the LTE mobile communication network and stores subscriber profile information, authentication and location related data.

The DPI 190 manages traffic by analyzing data packets transmitted and received on a communication network. The DPI 190 opens all of the data packets to determine the type of the service, and provides the PCRF 170 with information on the determined service type. For example, it is possible to grasp which application program (app) includes data including m-VoIP (mobile voice call).

2 is a block diagram of a service quality information updating apparatus according to an embodiment of the present invention. The service quality information updating apparatus 200 according to an embodiment of the present invention may be installed in the PGW 160 shown in FIG. 1 or interworked with the PGW 160 in a separately installed state.

As shown, the service quality information updating apparatus 200 includes a message receiving unit 210, a determining unit 220, and a message transmitting unit 230.

The message receiving unit 210 receives the bearer modification request message including the status information of the mobile communication terminal and receives the service policy response message according to the service policy request message.

The determination unit 220 compares the service quality related information included in the service policy response message with predetermined service quality related information to determine whether the information is different. The determining unit 220 may compare the QCI information and the QCI information included in the service policy response message to determine whether the QCI information is different.

The message transmission unit 230 transmits a service policy request message based on the bearer modification request message through the uplink path according to the call processing path and transmits a bearer modification response message based on the service policy response message through the downlink path according to the call processing path And transmits a bearer update request message for updating the service quality related information through the downlink path when the result of the determination by the determination unit 220 is different.

3 is a flowchart illustrating a service quality information update method according to an embodiment of the present invention.

As shown in the figure, the method for updating the service quality information according to the embodiment includes steps (S301 to S305) of receiving the bearer modification request message including the status information of the mobile communication terminal device in a state in which the service quality-related information is set .

The method further includes a step (S307) of generating a message including identification information on a change event of the status information, and transmitting the generated message according to the call processing path.

Thereafter, the method further includes receiving a service policy response message according to the service policy request message (S309).

After updating the pre-set service quality related information based on the service quality related information included in the received service policy response message, a bearer modification response message based on the service policy response message is transmitted through the down path according to the call processing path (S311, S313).

And comparing the service quality related information included in the service policy response message with predetermined service quality related information to determine whether the information is different (S315).

If the service quality related information included in the service policy response message and the predetermined service quality related information are different according to the result of the determination, the bearer update request message for updating the service quality related information is transmitted through the downlink path (S317) and receiving a bearer update response message (S319).

Hereinafter, a process of updating service quality information between nodes in a mobile communication system to which an apparatus 200 for updating service quality information according to an embodiment of the present invention is applied will be described with reference to FIG. 1 to FIG. According to the present invention, a mobile communication system can efficiently operate radio resources by selectively applying CA services according to types of data services.

First, in the PGW 160, service quality related information serving as a reference for providing a service to the mobile communication terminal devices 111 to 116 such as a QoS class identifier (QCI) is preset (S301).

Then, when a change event of the state information in which the state information is changed such as the mobile communication terminal units 111 to 116 is changed from the idle state to the active state is generated (S303), the SGW 150 transmits a modify bearer request ) Message to the PGW 160 (S305).

The message receiving unit 210 of the service quality information updating apparatus 200 receives the bearer modification request message including the status information of the mobile communication terminal apparatuses 111 to 116 from the SGW 150.

In addition, the determination unit 220 of the service quality information update apparatus 200 determines whether a change event of the status information is generated based on the received bearer modification request message, and the message transmission unit 230 transmits a status change event And transmits the message to the PCRF 170 according to the call processing path (S309). For example, the message transmitter 230 generates a credit control request-update (CCR-U) message as a service policy request message including identification information on a change event of the status information and transmits the message to the PCRF 170 (S307).

Next, the PCRF 170 receives a message including the identification information of the change event of the status information by the mobile communication terminal devices 111 to 116, that is, the CCR-U message from the PGW 160. [ Then, information on the service type of the data packet can be received from the DPI 190.

Then, the PCRF 170 can discriminate whether the status information change event has occurred in the mobile communication terminal units 111 to 116. [ In addition, the PCRF 170 determines service quality-related information for each type of service for the mobile communication terminals 111 to 116, and transmits a message including the determined service quality related information to the PGW 160 (S309). For example, the PCRF 170 may send a Credit Control Answer-Update (CCA-U) message to the PGW 160 as a service policy response message including service quality related information. For example, a QCI value may be included in the service quality-related information included in the CCA-U message, and the PCRF 170 may classify the QCI value and cause the service policy to be initialized for the change event of the status information.

The message receiving unit 210 of the service quality information updating apparatus 200 receives the service policy response message according to the service policy request message from the PCRF 170. The PGW 160 transmits the service policy response message to the PCRF 170 via the call processing path, Related service information based on the service quality-related information included in the message received from the service-quality-related service management server (S311). Here, the service quality related information updated by the PGW 160 includes QCI, Guaranteed Bit Rate (GBR), QoS, and the like.

The message transmission unit 230 of the service quality information updating apparatus 200 transmits a bearer modification response message (modify bearer answer) to the SGW 150 as a response to the bearer modification request message received in step S305 (S313) .

Next, the determination unit 220 of the service quality information update apparatus 200 compares the service quality related information included in the service policy response message received in step S309 with the service quality related information previously set in step S301, (S315). For example, the determination unit 220 may compare the QCI information included in the service policy response message with the predetermined QCI information to determine whether the QCI information is different.

The message transmission unit 230 of the service quality information updating apparatus 200 determines whether the service quality related information included in the service policy response message and the predetermined service quality related information are different from each other If it is discriminated to be other, it transmits an update bearer request message for updating the service quality related information to the SGW 150 through the downlink path according to the call processing path (S317).

Here, the reason why different types of messages are transmitted over the two steps of step S313 and step S317 is that it is impossible to include the service quality related information in the bearer modification response message transmitted in step S313.

The service quality related information included in the bearer update response message of step S317 is transmitted to the eNodeB 100 by the SGW 150 and the eNodeB 100 transmits the service quality related information included in the bearer update response message to the mobile communication terminal units 111 to 116, Scheduling is adjusted for each type of data service, and CA service is selectively applied for each type of data service, so that radio resources can be efficiently operated.

On the other hand, the SGW 150 that has received the bearer update request message from the PGW 160 via step S317 transmits a bearer update response message to the PGW 160 as a response thereto (S319).

Each block of the block diagrams attached hereto and combinations of steps of the flowchart diagrams may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus so that the instructions, which may be executed by a processor of a computer or other programmable data processing apparatus, And means for performing the functions described in each step are created. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory It is also possible for the instructions stored in the block diagram to produce a manufacturing item containing instruction means for performing the functions described in each block or flowchart of the block diagram. Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible that the instructions that perform the processing equipment provide the steps for executing the functions described in each block of the block diagram and at each step of the flowchart.

Also, each block or each step may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative embodiments, the functions mentioned in the blocks or steps may occur out of order. For example, two blocks or steps shown in succession may in fact be performed substantially concurrently, or the blocks or steps may sometimes be performed in reverse order according to the corresponding function.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

According to the embodiment of the present invention, the bearer update request message is continuously transmitted after the bearer modification response message is transmitted in the situation where the change event of the status information for switching the mobile communication terminal apparatus from the idle state to the active state occurs, The service policy can be initialized in a situation where a change event of the service policy is generated.

Accordingly, the wireless resources can be efficiently operated by selectively applying the CA service according to the type of the data service.

The method and apparatus for updating service quality information according to an embodiment of the present invention can be used in an LTE mobile communication system or the like that provides an LTE-A service.

100: eNodeB 140: MME
150: SGW 160: PGW
170: PCRF 180: HSS
190: DPI 200: Service quality information update device
210: message receiving unit 220:
230:

Claims (6)

Receiving a service policy response message according to a service policy request message;
Transmitting a bearer modification response message based on the service policy response message through a downlink path according to a call processing path;
Comparing the service quality related information included in the service policy response message with predetermined service quality related information to determine whether the information is different;
And transmitting a bearer update request message for updating the service quality related information through the downlink path when the result of the determination is different
How to update service quality information. The method according to claim 1,
Receiving a bearer modification request message including status information of a mobile communication terminal apparatus;
And transmitting the service policy request message based on the bearer modification request message through an uplink path according to the call processing path
How to update service quality information. The method according to claim 1,
Wherein the service quality related information is QCI (QoS Class Identifier) information
How to update service quality information. A message reception unit for receiving a service policy response message according to a service policy request message;
A determination unit for comparing the service quality related information included in the service policy response message with predetermined service quality related information to determine whether the information is different;
And transmits a bearer modification response message based on the service policy response message through a downlink path according to a call processing path. When the bearer modification response message is different according to a result of the determination, And a message sending unit for sending an update request message
Service quality information update device. 5. The method of claim 4,
Wherein the message receiver receives a bearer modification request message including status information of the mobile communication terminal,
Wherein the message transmission unit transmits the service policy request message based on the bearer modification request message through an uplink path according to the call processing path
Service quality information update device. 5. The method of claim 4,
Wherein the service quality related information is QCI (QoS Class Identifier) information
Service quality information update device.

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