KR20200078448A - Method for providing mobile telecommunication service, and apparatus therefor - Google Patents

Abstract

According to the present invention, a mobile communication service providing method and an apparatus therefor are disclosed. According to the present invention, the mobile communication service providing method comprises the steps of: receiving, by a subscriber information management device, a location registration request for a user device from a mobility management device; updating, by the subscriber information management device, access point name (APN) information registered for the user device for a specific mobile communication service by using subscriber profile information of the user device; and transmitting, by the subscriber information management device, the subscriber profile information including updated APN information to the mobility management device.

Description

Method for providing mobile telecommunication service, and apparatus therefor

The present invention relates to a method for providing a mobile communication service and a device therefor, and more specifically, an APN (Access Point Name) for each mobile communication service in a mobile communication system supporting two or more mobile communication services according to different mobile communication standards. It relates to a mobile communication service providing method and a device therefor that can selectively provide a specific mobile communication service to a user device requesting a specific mobile communication service by creating a session by separating ).

Mobile communication is a communication system in which mobility is provided to allow users to communicate without regard to voice, video, or data through a terminal. Since the first generation mobile communication standard, an analog mobile phone system standard, has emerged, users In order to meet the diverse and evolving needs of the company, continuous technology development has been made, and all-IP-based 4G (4G) mobile communication standards capable of providing ultra-wideband Internet access, IP telephony, and multimedia streaming services have been proposed and commercialized. Is being tried.

As a representative 4th generation mobile communication standard, there is an LTE advanced (LTE advanced) that improves LTE (Long Term Evolution), and some include LTE or HSPA+ as the 4th generation mobile communication standard in addition to the LTE advanced.

Here, LTE is based on Release 8, a wireless high-speed data packet access standard established in December 2008 by the 3rd Generation Partnership Project (3GPP), and is a 4G wireless technology (4G) designed to increase the capacity and speed of mobile phone networks. It's a previous step towards ). LTE is an all-IP based network that provides differentiated QoS for real-time service and non-real-time service to provide network resource efficiency, and also introduces smart antenna technology (MIMO) to provide bandwidth for wireless communication. By extending, it supports 12 times faster speed than HSDPA.

In addition, LTE-A is defined as improving the above-mentioned LTE to provide a maximum transmission rate of 1 Gbps down and 500 Mbps up when stopped. The LTE-A provides higher data throughput than LTE through Carrier Aggregation (CA) and Coordinate Muti-Point (CoMP) technologies that are not supported by LTE. Here, Carrier Aggregation (CA) is a technology that extends and uses frequency bands by bundling different frequency bands at the same time. Coordinate Muti-Point (CoMP) increases cell boundary throughput through cooperative interference control between neighboring base stations. Technology.

Accordingly, two or more mobile communication services according to different standards such as LTE and LTE-Advanced are currently supported in the mobile communication system.

However, since the existing LTE modem and LTE-Advanced are not compatible, the LTE-Advanced service cannot be provided for a user device that does not support the technology according to the LTE Advanced standard.

Therefore, in the case of a mobile communication system that provides different mobile communication services such as LTE and LTE-Advanced, whether the user device is subscribed to the LTE-Advanced service and whether the user device can support the LTE-Advanced function. First, it is necessary to selectively provide LTE-Advanced technology to a user device supporting an LTE-Advanced service among user devices entering a coverage area of a wireless access device supporting an LTE-Advanced service.

Published Korean Patent No. 2013-0031928, published on March 29, 2013 (Name: Packet Data Network (PDN) connection management)

The present invention is proposed to solve a problem in a mobile communication system in which different mobile communication services are supported together, and a mobile communication service in a mobile communication system capable of providing two or more mobile communication services according to different mobile communication standards It is intended to provide a mobile communication service providing method and a device therefor that can selectively provide a specific mobile communication service to a user device requesting a specific mobile communication service by classifying and assigning APNs for each.

In order to achieve the above object, a method for providing a mobile communication service of a subscriber information management device according to the present invention includes: a subscriber information management device receiving a location registration request for a user device from the mobility management device; Updating the access point name (APN) information registered for the user device for a specific mobile communication service by using the subscriber profile information of the user device, and the subscriber information management device including the updated access point name information And transmitting profile information to the mobility management device.

Further, between the receiving step and the updating step, the subscriber information management device further comprises the step of confirming whether to subscribe to a specific mobile communication service for the user device by using the subscriber profile information of the user device, the In the updating step, the access point name information is updated by reflecting whether the identified specific mobile communication service is subscribed.

Further, between the receiving step and the updating step, the subscriber information management device further comprises the step of determining whether a specific mobile communication service is supported for the user device by using the terminal performance information of the user device, and the In the updating step, the access point name information is updated by reflecting whether the identified specific mobile communication service is supported.

In addition, the updating step is characterized in that the operator ID (OI) portion of the access point name is changed for a specific mobile communication service.

A method for providing a mobile communication service of a mobility management device according to the present invention includes: when the mobility management device registers an initial location of a user device, receiving subscriber profile information including updated access point name (APN) information from the subscriber information management device Checking whether the user device subscribes to a specific mobile communication service by using the access point name information among the received subscriber profile information, and when the user device is subscribed to a specific mobile communication service, the mobility management device And the management device performing a session creation procedure through a PDN gateway preset for a specific mobile communication service.

In addition, after the step of performing, the mobility management device further comprises the step of transmitting an initial context setup request including the specific mobile communication service subscription information to the wireless access device selected by the user device.

The subscriber information management apparatus according to the present invention, a communication interface unit for communicating with a mobility management apparatus, receives a location registration request for a user device from the mobility management apparatus, and uses the user profile information of the user device to register the user device It includes a control unit for updating the access point name (APN) information registered for the specific mobile communication service, and controls to transmit subscriber profile information including the updated access point name information to the mobility management device.

The mobility management apparatus according to the present invention includes a first communication interface unit for communicating with a wireless access device, a second communication interface unit for communicating with a subscriber information management device managing user authentication information and a profile, when registering the first location of the user device , When subscriber profile information including updated access point name (APN) information is received from the subscriber information management device, whether the user device subscribes to a specific mobile communication service by using the access point name information among the received subscriber profile information And a control unit performing a session creation procedure through a PDN gateway preset for a specific mobile communication service when the user device is subscribed to a specific mobile communication service.

In addition, the control unit is characterized in that the control so that the initial context setup request including the specific mobile communication service subscription information is transmitted to the wireless access device selected by the user device.

In addition, the control unit is characterized in that it is determined to be subscribed to a specific mobile communication service, if the access point name operator ID information is set for the feature mobile communication service.

In addition, the controller, when making an initial context setup request for the user device to the wireless access device, characterized in that the maximum bandwidth information for the user device is set to a value assigned for a specific mobile communication service and then transmitted. .

According to the above-mentioned solution, the present invention differs for each mobile communication service provided in a specific mobile communication network with respect to an access point name defined to distinguish an existing packet data network or a service (for example, IMS) provided by a packet data network. By setting, the mobility management device can determine whether to subscribe to a specific mobile communication service for the user device requesting access through the access point name information provided from the subscriber information management device in response to the location registration request. By providing a subscription to a specific mobile communication service according to a wireless access device, the specific mobile communication is selectively selected for a user device in which the wireless access device is subscribed to a specific mobile communication service and can support the specific mobile communication service function. It has an effect of providing a service function.

In particular, the present invention, in a mobile communication system supporting two or more mobile communication services according to different mobile communication standards, when the subscriber information management device receives a location registration (update) request for the user device from the mobility management device, the The subscriber profile information of the user device is extracted to check whether the user is subscribed to a specific mobile communication service and whether the user device is a terminal capable of supporting the specific mobile communication service. Whether or not the mobility management device subscribes to a specific mobile communication service for each user device without significantly changing an existing access procedure by updating the access point name with the access point name previously set for the specific mobile communication service and providing it to the mobility management device. It has the effect of allowing you to manage it.

In addition, the present invention can be created by separating sessions for two or more mobile communication services according to different mobile communication standards by using the access point name provided by the mobility management device from the subscriber information management device. It has an excellent effect of managing sessions and QoS separately.

In addition, the present invention actually identifies a specific mobile communication service subscription information of a user device to be established by using information provided from a mobility management device in a wireless access device provided with a specific mobile communication service, and a terminal provided from the user device By comparing with the performance information, among a plurality of user devices entering the coverage area, a specific mobile communication service is selectively provided to a user device that is subscribed to a specific mobile communication service and that the terminal performance can support a specific mobile communication service. It has an excellent effect.

1 is a view schematically showing the structure of a mobile communication system to which the present invention is applied.
2 is a schematic diagram for explaining an access point name and a session creation process using the same in the mobile communication system according to the present invention.
3 is a block diagram showing the configuration of a subscriber information management apparatus according to an embodiment of the present invention.
4 is a flowchart illustrating a method for providing a mobile communication service executed by a subscriber information management device according to an embodiment of the present invention.
5 is a block diagram showing the configuration of a mobility management apparatus according to an embodiment of the present invention.
6 is a flowchart illustrating a method for providing a mobile communication service executed by a mobility management apparatus according to an embodiment of the present invention.
7 is a flowchart illustrating an initial access procedure of a mobile communication system to which a method for providing a mobile communication service according to an embodiment of the present invention is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the following description and accompanying drawings, detailed descriptions of well-known functions or configurations that may obscure the subject matter of the present invention are omitted. In addition, it should be noted that the same components throughout the drawings are represented by the same reference numerals as much as possible.

Before describing a method and apparatus for providing a mobile communication service according to the present invention, terms related to the present invention used in the following embodiments are defined as follows.

In the following description,'mobile communication service' is a service provided to communicate voice, video, and data through a user device regardless of location, and may be specifically provided based on various mobile communication standards and mobile communication technologies. In particular, in the present invention, the mobile communication service may be classified according to the applied mobile communication standard, for example, WCDMA mobile communication service and CDMA2000 mobile communication service according to the 3G mobile communication standard, and 3.9 generation mobile communication standard. HSDPA mobile communication service and LTE mobile communication service, and LTE-A mobile communication service according to the 4th generation mobile communication standard, etc. These mobile communication services, the mobile communication technology applied according to the mobile communication standard In particular, in the case of LTE-A mobile communication service, carrier aggregation technology or CoMP technology may be applied.

Further, an access point name (APN) is information for identifying a packet data network (PDN) to be accessed in a mobile communication network, and is also called a PDN ID. When registering a subscriber, the APN is stored in a subscriber information management device (HSS: Home Subscriber Server) as registration information, and is provided to the mobility management device from the subscriber information management device upon initial connection of the user device, and used for session creation. Normally, APNs are used to identify packet data networks. In the present invention, by setting the APNs differently for each of two or more mobile communication services provided according to different mobile communication standards, the mobility management device can obtain a specific mobile communication service from APN information. You should be able to check whether you have signed up.

In addition, the mobile communication system to which the present invention is applied is a mobile communication system that supports providing two or more mobile communication services according to different mobile communication standards together. For example, a mobile communication system to which the present invention is applied may provide LTE mobile communication service, which is a 3.9th generation mobile communication standard, and LTE-A mobile communication service, which is a 4th generation mobile communication standard.

In the following description, for convenience of understanding, the case where the LTE mobile communication service and the LTE-A mobile communication service are provided together will be described as an example. However, the present invention is not limited to this, and any mobile communication system that provides two or more mobile communication services according to different mobile communication standards may be applied.

1 is a diagram schematically showing the structure of a mobile communication system to which the present invention is applied, and the structure of a mobile communication system to which the present invention is applied will be described first with reference to this.

First, the user device 10 provided with a mobile communication service according to the present invention is a wireless communication device having a mobile communication function, and may be, for example, a smart phone or a tablet PC. . In the present invention, the user device 10 may include a mobile communication service function according to a corresponding mobile communication standard so that a mobile communication service provided through a mobile communication system can be provided. In this case, the mobile communication service function may include one of a communication module, for example, an LTE modem and an LTE-A modem. At this time, the user device 10 with an LTE-A modem can support LTE mobile communication services such as Carrier Aggregation or CoMP defined in the 4th generation mobile communication standard, while the user device 10 with an LTE modem Cannot support LTE mobile communication services such as Carrier Aggregation or CoMP.

In addition, the mobile communication system for providing a mobile communication service to the user device 10, as shown in Figure 1, the management of subscriber information, including subscriber numbers and locations, and connection and access networks with external networks and It is divided into a core network (Core Network) in charge of the connection, and an access network (Access Network) in direct connection with the user device (10) through a radio resource and responsible for the function of transmitting and receiving service and data. In the above, the external network may include one or more of a mobile communication network of another operator, an IP Multimedia Subsystem (IMS) network, or an Internet network. Here, the IMS network and the Internet network are IP-based packet data networks.

The access network includes a number of radio access devices 100. Here, the wireless access device 100 serves as a base station or an access point that performs a function of transmitting and receiving wireless data through a connected channel after connecting a wireless channel with the user device 10, for example, BS (Base Station), Base Transceiver Station (BTS), Node B, eNode B, and the like, may include a wireless access pointer of a Wi-Fi network.

That is, the wireless access device 100 may be implemented as a base station transmission system (BTS) in a synchronous (CDMA) network, and a base station controller (BSC) that controls a base station access network 100 Can be included within. In addition, in asynchronous (WCDMA) network, it can be implemented with NodeB and Radio Network Controller (RNC), and in LTE (Long Term Evolution) network, it can be implemented with eNodeB, which is an evolved base station type. In addition, the eNodeB can support only the 3.9 generation mobile communication standard or even the 4th generation mobile communication standard LTE-A.

These wireless access devices 100 are distributedly arranged at different locations and have a communication coverage of a predetermined range, and connect a user communication device 10 entering the communication coverage with a wireless communication channel for use of communication services. Specifically, the wireless access device 100 transmits a connection request from the user device 10 that has entered communication coverage to the mobility management device 200, and is controlled by the user device under the control of the mobility management device 200 ( 10) Connect the wireless communication channel with.

To this end, the wireless access device 100 generates and broadcasts necessary control information in the corresponding communication coverage as system information so that the user device 10 can search for itself. At this time, the system information includes operator information (Public Land Mobile Network Identifier; PLMN ID) supported by the wireless access device 100, base station cell information (eNB Cell Global ID; ECGI), and area information to which each cell belongs (Tracking Area ID) ; TAI).

In addition, the wireless access device 100 may collect and analyze channel measurement result information of the cells adjacent to the current cell from the user device 10 to determine the handover and command the handover. To this end, the wireless access device 100 may support a control protocol such as a radio resource control protocol related to radio resource management.

In particular, in the present invention, the wireless access device 100 is a device that supports a specific mobile communication service (for example, LTE-A mobile communication service) among two or more different mobile communication services provided by the mobile communication system. And unsupported devices. For example, while the plurality of wireless access devices 100 provided in the mobile communication system to which the present invention is applied provides an LTE service, at least one of the plurality of wireless access devices 100 is an LTE-A mobile communication service, specifically As a carrier aggregation or CoMP may be selectively provided for a specific user device 10. Then, the radio access device 100 according to the present invention allocates radio resources to the user device 10 according to control from the mobility management device 200, and performs connection establishment through the allocated radio resources. At this time, the specific mobile communication service subscription information is received from the mobility management device 200, and the specific mobile communication service subscription information is compared with the terminal performance information of the user device 10, and the specific mobile communication service (Carrier Aggregation or CoMP) function selectively. As the specific mobile communication service (Carrier Aggregation or CoMP) function is activated, the radio access device 100 allocates radio resources based on Carrier Aggregation or CoMP and performs connection establishment.

Next, the core network is a network system that performs a main function for a mobile communication service such as call processing, mobility control and switching between access networks, and can be implemented with various functional elements. Specifically, referring to FIG. 1, the core network includes a mobility management device 200 and a serving gateway 300, a packet data network (hereinafter referred to as PDN) gateway 400, a subscriber information management device 500, It may include a subscriber policy management apparatus 600. Here, the mobility management device 200, the serving gateway 300, and the PDN gateway 400 may be assigned to each adjacent wireless access device 100 and connected respectively. In addition, the above-described devices may be implemented as one server device or may be implemented as different devices.

Among the components of the core network, the mobility management device 200 is a functional element for managing the movement of the user device 10, and includes, for example, a mobility management entity (MME) defined in the 3GPP standard. Specifically, the mobility management device 200 enters the communication coverage of any wireless access device 100 and performs a location registration procedure for the user device 10 requesting access. In addition, the mobility management device 200 may manage the user device 10 in an idle mode and select a serving gateway 300 and a PDN gateway 400 to manage the user device 10. . Also, the mobility management device 200 may perform functions related to roaming and authentication for the user device 10. Further, the mobility management device 200 may process a bearer signal generated from the user device 10. Here, a message transmitted for connection processing in a non-connected state between the mobility management device 200 and the user device 10 is referred to as a NAS (Non Access Stratum) message. The NAS is an end-to-end protocol between the user device 10 and the core network, particularly the mobility management device 200, and is used for network connection management, authentication, call processing for establishing a bearer, session management, mobility management, and the like.

At this time, the mobility management device 200 supports a plurality of Tracking Area Identity (TAI), and is connected to a plurality of wireless access devices 100 that individually support TAIs. Through this, a plurality of wireless access devices 100 supporting the same TAI have a connection with the same mobility management device 200, and the wireless access devices 100 supporting different TAI connect with other mobility management devices. It is possible to have.

Particularly, in the present invention, the mobility management device 200 performs location registration in conjunction with the subscriber information management device 500 and acquires subscriber profile information when the user device 10 first connects, at this time, Based on the access point name information included in the subscriber profile information, it is checked whether the user device 10 is subscribed to a specific mobile communication service, and the user device 10 receives the specific mobile communication service subscription information of the user device 10. ) And the wireless access device 100 to be connected. At this time, the specific mobile communication service subscription information may be transmitted through a specific field in the SPID of the initial context setup request or maximum bandwidth information (UE-AMBR). For example, the specific mobile communication service subscription information may be displayed as a value indicating whether to subscribe to a specific field in the SPID of the initial context setup request. In another case, the specific mobile communication service subscription information may be expressed as maximum bandwidth information having a preset value for a specific mobile communication service.

Next, the serving gateway 300 may serve as a mobility anchor during handover between the wireless access devices 100 of the user device 10 or when moving between networks. In particular, taking the LTE network as an example, the serving gateway 300 may serve as a mobility anchor when handover of the user device 10 and a mobility anchor when moving a 3GPP wireless network.

The PDN gateway 400 allocates an IP (Internet Protocol) address of the user device 10. In addition, the PDN gateway 400 serves as a mobility anchor when moving between different types of networks (for example, 3GPP wireless networks and non-3GPP wireless networks). In addition, the PDN gateway 400 determines a bearer band to be provided to the user device 10. In addition, the PDN gateway 400 is responsible for forwarding and routing functions for packet data.

In addition, the PDN gateway 400 interworks with the subscriber policy management device 600 to perform different QoS policies for each user device 10, control traffic, and perform charging processing.

In particular, the serving gateway 300 and the PDN gateway 400 create a session for the user device 10.

At this time, the PDN gateway 400 includes a packet data network and a plurality of PDN gateways respectively divided for each service provided through the packet data network, and in particular, in the present invention, the PDN allocated for a specific mobile communication service. Includes a gateway. In other words, the PDN gateway 400 is assigned to each access point name.

Accordingly, when the mobility management device 200 according to the present invention allocates the PDN gateway 400 for the user device 10, based on the access point name information provided from the subscriber information management device 500, the user device ( When 10) is subscribed to a specific mobile communication service, a PDN gateway divided for the specific mobile communication service is allocated.

Next, the subscriber information management apparatus 500 manages information about the subscriber and mobility information. In particular, the subscriber information management device 500 stores service subscription information for each user device 10 and provides it to the mobility management device 200. The service subscription information includes not only additional service subscription information, but also subscription information for any mobile communication service among mobile communication services based on different mobile communication standards provided by the mobile communication system. In addition, the subscriber information management device 500 registers and updates the mobility information of the user device 10 according to a location registration/update request from the mobility management device 200.

In particular, in the present invention, the subscriber information management device 500 checks the subscriber profile information for the user device 10, is subscribed to a specific mobile communication service, and the user device 10 is a specific mobile communication service In the case of a terminal device supporting a function, the access point name of the user device 10 is updated with access point name information preset for a specific mobile communication service. Then, the subscriber profile information including the updated access point name information is provided to the mobility management device 200.

Typically, the access point name consists of a network ID (APN-NI) and a business operator ID (APN-OI). At this time, the network ID cannot be changed because it is an identifier for packet network data such as the Internet and the IMS network. Accordingly, in the present invention, the access point name can be updated in a form of changing the operator ID to a set value corresponding to a specific mobile communication service.

Lastly, the subscriber policy management apparatus 600 is for performing QoS adjustment between the core network and the external network (packet data network), and manages policies and charging rules for each subscriber and provides it to the PDN gateway 400. The subscriber policy management apparatus 600 may be a Policy and Charging Rules Function (PCRFF) defined in 3GPP.

In the above-described configuration, the user device 10 uses the data transmission path via the wireless access device 100, the serving gateway 300, and the PDN gateway 400 to external packet data network such as IMS network, Internet network, etc. PDN). To this end, when the user device 10 is able to communicate with a specific wireless access device 100 selected through a search procedure in synchronization with a radio link, the user device 10 may access the NAS to the mobility management device 200 through the wireless access device 100. Send a request (NAS Request) message. At this time, the NAS request message may be, for example, an attach request message, a cell area update request message, or a service request message.

Through the mobility management device 200, the subscriber identification, the authentication and security procedures for the user device 10, the location registration process, and the session creation process are sequentially performed by the request, and the user device 10 wirelessly accesses the device. A data transmission path is formed through the (100), the serving gateway 300, and the PDN gateway 400, and then a call service or a data service is made through this.

However, in the above-described process, when the user device 10 has a function to support a specific mobile communication service (for example, LTE-A), and, in addition, when the mobile communication service is subscribed to, the mobile communication The system should be able to provide the LTE-A mobile communication service when the corresponding user device 10 enters the communication coverage of the wireless access device 100 providing the LTE-A mobile communication service.

To this end, the mobility management device 200 according to the present invention, when registering the initial location of the user device 10, a specific mobile communication service for the user device from the access point name information received from the subscriber information management device 500 Check the subscription information and save it as a user context.

Subsequently, a session between the serving gateway 300 and the PDN gateway 400 for the user device 10 is created, which will be described with reference to FIG. 2.

2 is a schematic diagram for explaining a session creation process in a mobile communication system to which the present invention is applied.

Referring to FIG. 2, in the mobile communication system according to the present invention, at least one packet data network 21 and 22 to be connected to the user device 10 may exist. Here, it is assumed that the first packet data network 21 is an Internet network, and the second packet data network 22 is an IMS network.

At this time, there are APNs 1 to 3 for each of the first and second packet data networks 21 and 22. In the present invention, APNs for a specific mobile communication service (for example, LTE-A) (for example, APN1) is further present. Then, the PDN gateways 401 to 403 that can be accessed for each APN 1 to 3 are separately set.

In this state, when providing subscriber profile information, the subscriber information management device 500 provides the APN information provisioned for the user device 10 to the mobility management device 200. At this time, when the user device 10 is subscribed to a specific mobile communication service, the provided APN information is updated for the specific mobile communication service.

In addition, the mobility management device 200 allocates a PDN gateway to provide a PDN connection to the user device 10 using the APN information. At this time, when the APN information is updated for a specific mobile communication service, the mobility The management device 200 allocates a PDN gateway 401 that is mapped to APN1 and set for a specific mobile communication service with reference to domain information. Accordingly, the user device 10 is connected to the first packet data network 21 through the PDN gateway 401. On the other hand, if the APN information is not renewed for a specific mobile communication service, since it is not subscribed to a specific mobile communication service, the mobility management device 200 is not set for the specific mobile communication service, another PDN The gateway 402 is assigned, and the user device 10 is connected to the first packet data network 21 through the PDN gateway 402. Meanwhile, the second packet data network 22 corresponding to the IMS network may be connected through the PDN gateway 403 without discrimination of a specific mobile communication service.

Through this process, after creating a session for PDN connection to the user device 10, the mobility management device 200 moves to the wireless access device 100 in the communication coverage area where the user device 10 has entered. Provides the subscription information for the specific mobile communication service.

Accordingly, when the wireless access device 100 supports the specific mobile communication service, the terminal performance information collected from the user device 10 and the specific mobile communication service provided from the mobility management device 200 are provided. By comparing subscription information, a function corresponding to the specific mobile communication service is selectively activated. More specifically, the wireless access device 100 checks whether the user device 10 supports a specific mobile communication service function from the terminal performance information collected from the user device 10, and the user device 10 moves In support of a communication service, when information indicating that the user device 10 is subscribed to a specific mobile communication service is transmitted from the mobility management device 200, the specific mobile communication service function, for example, a carrier aggregation function, is activated. The radio resources of the user device 10 may be allocated.

Hereinafter, in the above-described mobile communication system, the configuration and operation of an apparatus for providing a mobile communication service according to the present invention will be described in more detail.

3 is a block diagram showing the configuration of a subscriber information management apparatus 500 for providing a mobile communication service according to an embodiment of the present invention, and FIG. 4 is a flowchart showing the operation of the subscriber information management apparatus 500.

Referring to FIG. 3, the subscriber information management apparatus 500 according to the present invention may include a communication interface unit 510, a storage unit 520, and a control unit 530.

The communication interface unit 510 is a configuration that performs communication with other network nodes in the core network, and in particular, in the present invention, performs communication with one or more mobility management devices 200. For example, according to the proposal of 3GPP, the communication interface unit 501 transmits and receives a control message for providing user authentication, security, location registration/update, and roaming function with the mobility management device 200 through the S6a interface. .

The storage unit 520 is configured to store data necessary for the operation of the subscriber information management apparatus 500. In particular, the storage unit 520 includes subscriber profile information including service subscription information for a plurality of subscribers. . In addition, the subscriber profile information is stored in correspondence with identification information (eg, IMSI) of the user device 10 and may include preset APN information for the user device 10.

The control unit 530 is a component for performing the main function of the subscriber information management apparatus 500, for example, subscriber authentication and location registration. In particular, the control process of the control unit 530 according to the present invention will be described with reference to FIG. 4.

Referring to FIG. 4, when a request for registering a location for a specific user device 10 is received from the mobility management device 200 through the communication interface unit 510 (S110 ), the received user device ( The registration information of the user device 10 is performed by mapping the identification information of 10) and the identification information (eg, MMEI) of the mobility management device 200. In addition, a location registration procedure that extracts corresponding subscriber profile information based on the identification information of the user device 10 and provides it to the mobility management device 200 is performed.

At this time, the control unit 530 of the subscriber information management apparatus 500 according to the present invention, with reference to the subscriber profile information, checks whether the user device 10 is subscribed to a specific mobile communication service, and also, terminal performance It is checked whether the specific mobile communication service function is supported (S120).

As a result of the check, when the user device 10 is subscribed to a specific mobile communication service, and the terminal performance supports the specific mobile communication service (S130, S140), the control unit 530 is the user device 10 The set APN information is updated for a specific mobile communication service (S150). Here, the APN information can be updated by changing the OI (operator ID) portion of the APN information for a specific mobile communication service.

Then, after registering the location, the controller 530 provides subscriber profile information including the updated APN information to the mobility management device 200 (S160).

On the other hand, as a result of the check, in steps S130 and S140, if the user device 10 is not subscribed to a specific mobile communication service, or if the terminal performance does not support the specific mobile communication service, the control unit 530 controls the APN. The information is transmitted to the mobility management device 200 without updating for a specific mobile communication service (S170). That is, at this time, the transmitted APN does not include setting information corresponding to a specific mobile communication service.

Accordingly, the mobility management device 200 can check whether the user device 10 is subscribed to a specific mobile communication service by checking the APN information provided from the subscriber information management device 500.

5 is a block diagram showing the configuration of the mobility management apparatus 200 according to an embodiment of the present invention, and FIG. 6 is a flowchart illustrating an operation process of the mobility management apparatus 200.

Referring to FIG. 5, the mobility management device 200 may include a first communication interface unit 210, a second communication interface unit 220, a storage unit 230, and a control unit 240. .

The first communication interface unit 210, as a means for communicating with the wireless access device 100, according to the proposal of 3GPP, can transmit a control message with the wireless access device 100 through the S1-AP interface, In addition, NAS signaling with the user device 10 is processed through the wireless access device 100.

The second communication interface unit 220 is a means for communicating with the subscriber information management apparatus 500 that manages user authentication information and profiles. For example, according to the proposal of 3GPP, the subscriber information management apparatus (S6a interface) 500) and transmit and receive control messages for user authentication, location registration/update, and roaming functions.

The storage unit 230 is a means for storing data necessary for the operation of the mobility management device 200, and in particular, users of user devices 10 connected to the wireless access device 100 connected to the mobility management device 200. Save the context (UE Context). The user context is status information related to network access of the user device 10, and may include security context, roaming restriction information, performance information of the user device, S1 signaling connection ID, bearer configuration information, and the like. In particular, in the present invention, the user context stored in the storage unit 230 may include subscription information of a specific mobile communication service of the user device 10.

The control unit 240 is a means for performing and controlling the overall operation of the mobility management device 200 in conjunction with the first and second communication interface units 210 and 220 and the storage unit 230.

Specifically, the control unit 240 includes the functions of the mobility management device 200 described above, location registration/update for the user device 10, management of the user device 10 in an idle mode, and the user device (10) Selection of the serving gateway 300 and the PDN gateway 400 to manage and requests to create a session, and performs control related to roaming and authentication of the user device 10.

In particular, in the present invention, the control unit 240 manages a user context for supporting a specific mobile communication service. Specifically, when registering the initial location of the user device 10, the controller 240 uses the APN information among the subscriber profile information received from the subscriber information management device 500 through the second communication interface 220. Specific mobile communication service subscription information for the user device 10 may be checked and included in a specific user context and stored in the storage unit 230. Then, the controller 240 selects the serving gateway 300 and the PDN gateway 400 based on the APN information, and performs a session creation procedure through the selected serving gateway 300 and the PDN gateway 400. In addition, the control unit 240 controls to transmit the specific mobile communication service subscription information to the wireless access device 100 in the communication coverage area where the user device 10 has entered.

Referring to FIG. 6, a process of providing a mobile communication service by the mobility management device 200 having the above-described configuration will be described in more detail.

Referring to FIG. 6, the mobility management device 200 may receive a connection request from the user device 10 (S210). The connection request may be transmitted as an Attach request among NAS messages.

The mobility management device 200 receiving the connection request of the user device 10 transmits the identification information of the user device 10 and its own identification information to the subscriber information management device 500 to request location registration, , In response, the subscriber profile information for the user device 10 may be received from the subscriber information management device 500. Here, the subscriber profile information is information necessary for connection with the user device 10, APN information to which the user device 10 is subscribed, QoS profile (QCI, ARP, APN-AMBR, UE-AMBR, etc.) It may include.

As described above, the mobility management device 200 receiving the subscriber profile information for the user device 10 uses the APN information among the subscriber profile information to which the user device 10 is subscribed to a specific mobile communication service. It is judged (S230). More specifically, it is determined that the user device 10 is subscribed to a specific mobile communication service when the OI portion of the APN information is checked and is a preset value for a specific mobile communication service. The specific mobile communication service subscription information determined as described above may be included in a user context for the user device 10 and stored in the storage unit 230.

The user context is information related to network access of the user device 10 to maintain the connection state of the user device 10, security context, roaming restriction information, performance information of the user device 10, S1 signaling connection ID, And bearer configuration information.

In addition, the mobility management device 200 refers to the subscriber profile information, and selects the PDN gateway 400 to be used by the user device 10, wherein the APN information is updated for a specific mobile communication service. The mobility management device 200 selects the PDN gateway 400 as a PDN gateway (for example, the PDN gateway 401 of FIG. 2) preset for a specific mobile communication service, and the selected PDN gateway 400 ) To perform the session creation procedure (S240). Here, the session creation procedure may be the same as the session creation procedure proposed in 3GPP, for example.

Then, the mobility management device 200 requests the initial context setup to the wireless access device 100 of the communication coverage that the user device 10 has entered (S250). At this time, the initial context setup request may include specific mobile communication service subscription information. For example, the specific mobile communication service subscription information is transmitted using a specific field of a Subscription Profile ID for RAT/Frequency Selection (SPID), or the maximum bandwidth information (UE-AMBR) is preset for a specific mobile communication service. It can be provided in the form of setting by value.

Accordingly, the wireless access device 100 may determine whether the user device 10 subscribes to a specific mobile communication service and whether to support the terminal based on the information included in the initial context setup request, and the specific mobile communication according to the determination result. By selectively activating the service function, radio resource allocation and connection can be performed.

7 is a flowchart illustrating an initial access procedure of a mobile communication system to which a method for providing a mobile communication service according to an embodiment of the present invention is applied. In particular, FIG. 7 is an exemplary diagram based on a connection procedure according to a mobile communication standard according to the proposal of 3GPP.

Referring to FIG. 7, when the user device 10 wants to be connected to the mobile communication system by power on or the like, mobility management connected to the wireless access device 100 through a specific wireless access device 100 selected through a search procedure The connection request is transmitted to the device 200 (S305). The access request is transmitted through an Attach request message among NAS messages, and the identification information of the user device 10, for example, International Mobile Subscriber Identity (IMSI), Globally Unique Temporary Identifier (GUTI), and International Mobile Equipment (EIMI) Identity).

In this case, when the user device 10 transmits an access request including GUTI based on the access information of the previous network, the mobility management device 200 previously accessed the user device 10 based on the GUTI. By receiving information of the user device 10 from the mobility management device of a network, an identification procedure for the user device 10 may be performed.

Subsequently, the mobility management device 200 receiving the connection request of the user device 10 performs subscriber authentication and security processing for the user device 10 (S310). The mobility management device 200 requests and receives authentication information from the subscriber information management device 500 based on the identification information (IMSI) of the user device 10, and uses the received authentication information. 10) A mutual authentication procedure may be performed, and after authentication, a security key may be generated and set between the user device 10. Thereafter, the control message is encrypted and transmitted based on the generated security key.

After completing the authentication and security procedure, the mobility management device 200 registers the location of the user device 10, and checks with the subscriber information management device 500 the user to determine what service the user can use. A location registration request for the device 10 is transmitted (S315).

The subscriber information management device 500 receiving the registration registers the identification information of the mobility management device 200 as the location information of the user device 10, while the user device 10 is subscribed to a specific mobile communication service. It is checked whether the terminal performance is capable of supporting a specific mobile communication service (S320).

And, as a result of the check, if the user device 10 is subscribed to a specific mobile communication service, and the terminal performance can support a specific mobile communication service, the pre-registered APN information is updated for the specific mobile communication service. (S325).

Then, the subscriber information management apparatus 500 transmits the subscriber profile information including the updated APN information to the mobility management apparatus 200 through an Update Location ACK message (S330). Here, the subscriber profile information includes APN information for a service subscribed by a user, identification information of a PDN gateway 400 for accessing the APN, and subscribed QoS profile information (UE-AMBR, QCI, ARP, APN-AMBR) Etc.), subscription information for a specific mobile communication service (eg, LTE-A), and the identification information of the APN information and the PDN gateway may be a value updated for a specific mobile communication service. .

The mobility management apparatus 200 stores the subscriber profile information received from the subscriber information management apparatus 500, and in particular, determines whether or not a particular mobile communication service is subscribed from the APN information, and the specific mobile communication service subscription information according to the result. It may be stored together (S335).

In addition, the mobility management device 200 selects the serving gateway 300 and the PDN gateway 400 using the APN information, and the user device 10 between the selected serving gateway 300 and the PDN gateway 400. Create a session for (S340). Here, when the APN information is updated for a specific mobile communication service, the mobility management device 200 selects a PDN gateway preset for a specific mobile communication service with reference to domain information, and connects the PDN through the corresponding PDN gateway. To perform.

As described above, when the authentication and security, location registration, and session creation procedures are normally processed, the mobility management device 200 receives a connection acceptance message (Attach Accept) in response to a connection request to the user device 10 through the wireless access device 100. ) Is transmitted (S345 ). The connection acceptance message is transmitted to the wireless access device 100 through the Initial Context Setup Request message described later in the S1 signaling connection, and then the user device from the wireless access device 100 through the RRC Connection Reconfiguration message in the RRC connection. (10).

In addition, to control the mobility management device 200 and the wireless access device 100 to perform a procedure for allocating radio resources to the user device 10, the user device 10 initially moves to the selected wireless access device 100. A context setup request is transmitted (S350). At this time, the mobility management device 200 provides security related information, performance information of the user device 10 and bearer configuration information, and subscription information of the specific mobile communication service to the wireless access device 100 together. In particular, the mobile communication service subscription information may be recorded in a specific predetermined field of a Subscription Profile ID for RAT/Frequency Selection (SPID) included in the initial context setup request, or transmitted through maximum bandwidth information (UE-AMBR). have.

Therefore, the wireless access device 100 checks whether the user device 10 is subscribed to a specific mobile communication service by referring to a specific field of the SPID or the UE-AMBR included in the initial context setup request (S355), In addition, it is checked whether the specific mobile communication service function is supported by referring to the terminal performance information of the user device 10 (360).

Then, according to the confirmation result, a specific mobile communication service function is activated (S365), and radio resource allocation and connection with the user device 10 are performed (S370).

For example, the wireless access device 100 may correspond to the specific mobile communication service when the user device 10 is subscribed to a specific mobile communication service and the terminal performance can support the specific mobile communication service function. A function, for example, a carrier aggregation function is activated, and radio resources are allocated through this, and a connection is performed. On the other hand, if the user device 10 does not support a specific mobile communication service or is not subscribed to a specific mobile communication service, the wireless access device 100 does not apply carrier aggregation, according to the definition of the LTE standard. Connection can be performed by allocating radio resources.

Then, the wireless access device 100 transmits an initial context setup response message (Initial Context Setup Response) to the mobility management device 200 in response to the initial context setup request, informing that the connection is complete (S375).

In addition, the user device 10 in which the radio resource setting is completed also notifies the mobility management device 200 through the wireless access device 100 that the connection is complete (S380). The connection completion may be transmitted through an Attach Complete message among NAS messages, and the Attach Complete message is transmitted to the wireless access device 100 through a UL Information Transfer message, and then a mobility management device 200 through an Uplink NAS Transport message ).

As described above, the mobility management device 200 confirming that the wireless connection between the user device 10 and the wireless access device 100 is completed, the serving gateway 300 receives the downlink SI TEID received from the wireless access device 100. ) To perform a session update procedure to connect from the wireless access device 100 to the serving gateway 300.

Through the above-described process, a data transmission path is established through the wireless access device 100, the serving gateway 300, and the PDN gateway 400, through which the user device 10 can receive a data communication service.

The method for providing a mobile communication service according to the present invention may be implemented in a form of software readable through various computer means and recorded on a computer-readable recording medium. Here, the recording medium may include program instructions, data files, data structures, or the like alone or in combination. The program instructions recorded on the recording medium may be specially designed and configured for the present invention, or may be known and available to those skilled in computer software. For example, the recording medium includes magnetic media such as hard disks, floppy disks and magnetic tapes (Magnetic Media), compact disk read only memory (CD-ROM), optical media such as DVD (Digital Video Disk), and optical media. Includes magneto-optical media, such as a floppy disk, and hardware devices specifically configured to store and execute program instructions such as ROM, random access memory (RAM), flash memory, etc. do. Examples of program instructions may include high-level language code that can be executed by a computer using an interpreter or the like, as well as machine language codes produced by a compiler. Such a hardware device can be configured to operate as one or more software modules to perform the operation of the present invention, and vice versa.

In addition, although the present specification and the drawings have described preferred embodiments of the present invention, it is common in the technical field to which the present invention pertains that other modified examples based on the technical spirit of the present invention can be implemented in the exceptions of the embodiments disclosed herein It is obvious to those who have knowledge. In addition, although specific terms are used in the present specification and drawings, they are merely used in a general sense to easily describe the technical contents of the present invention and to help understand the present invention, and are not intended to limit the scope of the present invention.

Although the specification and drawings describe exemplary device configurations, the functional operations and subject implementations described herein may be implemented with other types of digital electronic circuits, or the structures disclosed herein and their structural equivalents. It may be implemented in the included computer software, firmware or hardware, or a combination of one or more of them. Implementations of the subject matter described herein are one or more computer program products, that is, one for computer program instructions encoded on a tangible program storage medium to control or thereby execute the operation of a device according to the invention. It can be implemented as the above modules. The computer-readable medium may be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of materials affecting a machine-readable propagated signal, or a combination of one or more of these.

A computer program (also known as a program, software, software application, script or code) mounted on a device according to the present invention and executing the method according to the present invention is a programming comprising a compiled or interpreted language or a priori or procedural language It can be written in any form of language, and can be deployed in any form, including standalone programs or modules, components, subroutines, or other units suitable for use in a computer environment. Computer programs do not necessarily correspond to files in the file system. The program is in a single file provided to the requested program, or in multiple interactive files (e.g., one or more modules, files storing subprograms or parts of code), or part of a file holding other programs or data (Eg, one or more scripts stored in a markup language document). The computer program may be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.

According to the present invention, an access point name defined to distinguish an existing packet data network or a service (for example, IMS) provided by a packet data network is set differently for each mobile communication service provided in a specific mobile communication network, thereby allowing the mobility management device to Through the access point name information provided from the subscriber information management device in response to the location registration request, it is possible to determine whether a specific mobile communication service is subscribed to the user device requesting access, and the subscription of the specific mobile communication service according to the determination Whether the wireless access device is subscribed to a specific mobile communication service and the user device capable of supporting the specific mobile communication service function can selectively provide the specific mobile communication service function. It has the effect.

In addition, the present invention can be created by separating sessions for two or more mobile communication services according to different mobile communication standards by using the access point name provided by the mobility management device from the subscriber information management device. It has an excellent effect of managing sessions and QoS separately.

In addition, the present invention actually identifies a specific mobile communication service subscription information of a user device to be established by using information provided from a mobility management device in a wireless access device provided with a specific mobile communication service, and a terminal provided from the user device By comparing with the performance information, among a plurality of user devices entering the coverage area, a specific mobile communication service is selectively provided to a user device that is subscribed to a specific mobile communication service and that the terminal performance can support a specific mobile communication service. It has an excellent effect.

10: user device 100: wireless access device
200: mobility management device 300: serving gateway
400: PDN gateway 500: subscriber information management device
600: subscriber policy management device

Claims (11)

The subscriber information management device receiving a location registration request for the user device from the mobility management device;
Updating, by the subscriber information management device, access point name (APN) information registered for the user device using the subscriber profile information of the user device for a specific mobile communication service; And
Transmitting, by the subscriber information management apparatus, subscriber profile information including the updated access point name information to the mobility management apparatus;
Mobile communication service providing method comprising a. According to claim 1,
Between the receiving step and the updating step,
Further comprising the step of determining whether the subscriber information management device subscribes to a specific mobile communication service for the user device by using the subscriber profile information of the user device.
The updating step,
A method of providing a mobile communication service, wherein the access point name information is updated by reflecting whether the identified specific mobile communication service is subscribed. According to claim 1,
Between the receiving step and the updating step,
The subscriber information management device using the terminal performance information of the user device to determine whether a specific mobile communication service support for the user device; further comprising,
The updating step,
A method of providing a mobile communication service, wherein the access point name information is updated by reflecting whether the identified specific mobile communication service is supported. According to claim 1,
The updating step,
A mobile communication service providing method, characterized in that the operator ID (OI) portion of the access point name is changed for a specific mobile communication service. When the mobility management device registers the initial location of the user device, receiving subscriber profile information including updated access point name (APN) information from the subscriber information management device;
Confirming, by the mobility management apparatus, whether the user device is subscribed to a specific mobile communication service by using access point name information among the received subscriber profile information; And
When the user device is subscribed to a specific mobile communication service, the mobility management device performing a session creation procedure through a preset PDN gateway for a specific mobile communication service;
Mobile communication service providing method comprising a. The method of claim 5,
After the step of performing,
Sending, by the mobility management device, an initial context setup request including the specific mobile communication service subscription information to a wireless access device selected by the user device;
Mobile communication service providing method further comprising a. A communication interface unit for communicating with the mobility management device;
Upon receiving a location registration request for a user device from the mobility management device, the access point name (APN) information registered for the user device is updated for a specific mobile communication service by using the subscriber profile information of the user device, and the A control unit for controlling subscriber profile information including updated access point name information to be transmitted to the mobility management device;
Subscriber information management device comprising a. A first communication interface unit for communicating with a wireless access device;
A second communication interface unit for communicating with a subscriber information management device that manages user authentication information and profiles;
When registering the initial location of the user device, when subscriber profile information including updated access point name (APN) information is received from the subscriber information management device, the access point name information of the received subscriber profile information is used to access the user device. A controller configured to determine whether to subscribe to a specific mobile communication service and to perform a session creation procedure through a PDN gateway preset for a specific mobile communication service when the user device is subscribed to a specific mobile communication service;
Mobility management device comprising a. The method of claim 8,
The control unit,
And controlling an initial context setup request including the specific mobile communication service subscription information to be transmitted to the wireless access device selected by the user device. The method of claim 8,
The control unit,
If the operator ID information of the access point name is information set for the feature mobile communication service, the mobility management device characterized in that it is determined to be subscribed to a specific mobile communication service. The method of claim 8,
The control unit,
When the initial context setup request for the user device is made to the wireless access device, the maximum bandwidth information for the user device is set to an assigned value for a specific mobile communication service and then transmitted.

Images