KR20150035142A - UE context management method using aggregated maximum bit rate and apparatus therefor - Google Patents

Abstract

The present invention relates to a method for managing a user context by using maximum bandwidth information which selectively provides a particular mobile communication system service to a user device supporting the particular mobile communication service by using maximum bandwidth information set to limit a maximum bandwidth for each user device among QoS parameters in a mobile communication system supporting two or more mobile communication services in accordance with different mobile communication standards, and to an apparatus therefor. When a subscriber policy management server generates and provides QoS and charging policies and policy and charging control (PCC) rules for a user device requesting access, the subscriber policy management server: checks subscriber profile information of the user device; and changes maximum bandwidth information allocated to the user device to a value corresponding to the particular mobile communication service when the user device subscribes to the particular mobile communication service. When a wireless access device allocates radio resources to the user device and connects the user device, the wireless access device: checks whether the maximum bandwidth information has a value corresponding to the particular mobile communication server and whether the user device supports the particular mobile communication service; and allocates the radio resources and performs connection by activating the particular mobile communication service function when the conditions are met. As a result, a particular mobile communication service is selectively provided to a user terminal subscribing to the particular mobile communication service and supporting the same.

Description

[0001] The present invention relates to a user context management method using maximum bandwidth information,

The present invention relates to a method and apparatus for managing a user context in a mobile communication system, and more particularly, to a method and apparatus for managing a user context in a mobile communication system supporting two or more mobile communication services according to different mobile communication standards And more particularly, to a user context management method using maximum bandwidth information for supporting a specific mobile communication service selectively for a user apparatus and an apparatus therefor.

Mobile communication is a communication system in which a user is allowed to communicate voice, image, data, and the like through a user device such as a mobile phone without any restriction on a location. As a first-generation mobile communication standard Since then, all-IP based 4G (4G) mobile communication standard that can provide UWB Internet access, IP phone, and multimedia streaming service has been proposed and commercialization has been attempted.

There are LTE Advanced (LTE-Advanced), which is a representative 4th generation mobile communication standard and improved LTE (Long Term Evolution). In addition to LTE advanced, LTE and HSPA + I can not.

LTE is based on Release 8, a wireless high-speed data packet access standard established by the 3rd Generation Partnership Project (3GPP) in December 2008, and is based on 4G wireless technology (4G ). LTE is an all-IP-based network that provides differentiated QoS for real-time and non-real-time services and can provide the efficiency of network resources. In addition, by introducing smart antenna technology (MIMO) To support speeds up to 12 times faster than HSDPA.

In addition, LTE-A is defined as improving the above-described LTE to provide a maximum transmission rate of 1 Gbps down and 500 Mbps upstream. This LTE-A provides higher data throughput than LTE through carrier aggregation (CA) and Coordinate Muti-Point (CoMP) technologies not supported by LTE. Coordinate Muti-Point (CoMP) is a technology that increases the cell boundary throughput by interference control by cooperation between neighboring base stations. In this case, Coordinate Muti-Point (CoMP) Technology.

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

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

Accordingly, in the case of a mobile communication system supported by different mobile communication services such as LTE and LTE-A, it is first checked whether the user equipment supports the LTE-A service, A service capability to the user equipment supporting the LTE-A service among the user equipment that has entered the coverage area of the LTE-A.

Patent Document 1: Korean Patent Laid-Open Publication No. 2013-0039394, April 22, 2013 (name: subscriber data allocation system and method thereof)

The present invention has been proposed in order to solve a problem in a mobile communication system that supports two or more mobile communication services according to different mobile communication standards and is a mobile communication system supporting two or more mobile communication services according to different mobile communication standards The system using the maximum bandwidth information set for the maximum bandwidth limitation of each user device among the QoS parameters, the user using the maximum bandwidth information supporting the specific mobile communication service selectively for the user equipment supporting the specific mobile communication service, A context management method and an apparatus therefor.

According to an aspect of the present invention, there is provided a method of managing a user context according to an embodiment of the present invention, the method comprising: receiving maximum bandwidth information allocated to a user equipment; Comparing the received maximum bandwidth information with a reference value set for a specific mobile communication service to determine whether to join a specific mobile communication service; Determining from the terminal capability information of the user equipment whether the user equipment supports a specific mobile communication service function; And activating a specific mobile communication service function for the user equipment when it is determined that the user equipment is subscribed to a specific mobile communication service and supports a specific mobile communication service function.

Here, the receiving of the maximum bandwidth information may be performed by the wireless access device receiving the initial context setup request from the mobility management apparatus and extracting the maximum bandwidth information included in the initial context setup request.

In addition, the method of managing a user context according to an embodiment of the present invention may include checking whether the wireless access device itself can support the specific mobile communication service function before activating the specific mobile communication service function Wherein the step of activating the specific mobile communication service function comprises the steps of: the radio access device itself can support a specific mobile communication service function, and the user equipment is subscribed to a specific mobile communication service, The mobile communication terminal can activate the specific mobile communication service function for the user device.

The specific mobile communication service function may include at least one of a carrier aggregation function and a coordination multi-point function.

According to another aspect of the present invention, there is provided a method of managing a user context, the method comprising: receiving information on a policy and a billing control rule for a user equipment from a PDN gateway; Determining from the subscriber profile information of the user equipment whether the user equipment is subscribed to a specific mobile communication service; Changing a maximum bandwidth information allocated to the user equipment to a value set for the specific mobile communication service when the mobile communication service is subscribed to the specific mobile communication service; And providing the PDN gateway with a policy and an accounting control rule including the changed maximum bandwidth information.

Here, the changed maximum bandwidth information may be transmitted to the mobility management apparatus after the session setup is performed by the PDN gateway, and is a UE-AMBR (Per User Equipment-Aggregated Maximum Bit Rate).

In addition, the step of providing the policy and accounting control rules to the PDN gateway may further provide subscription information of a specific mobile communication service to the PDN gateway through an extension field of a CCR-U response message.

In addition, upon receiving the maximum bandwidth information allocated to the user equipment, the wireless access apparatus according to an embodiment of the present invention determines whether to join a specific mobile communication service based on the maximum bandwidth information, The mobile communication terminal determines whether the user equipment supports a specific mobile communication service function through the information, and when the user equipment is subscribed to a specific mobile communication service and supports a specific mobile communication service function, A control unit for activating a service function and allocating radio resources to the user equipment; A wireless communication unit for communicating with the user equipment through the allocated radio resources and communicating with the user equipment; And a core network communication unit for transmitting and receiving data including the maximum bandwidth information from the mobility management apparatus.

In addition, the subscriber policy management apparatus according to the embodiment of the present invention generates policy and billing control rules from the subscriber profile information of the user equipment, checks whether the user equipment is subscribed to a specific mobile communication service, A controller for changing the maximum bandwidth information allocated to the user equipment to a value set for the specific mobile communication service when the service is subscribed to the service; And a communication interface unit for receiving a request for a policy and an accounting control rule for the user apparatus from the PDN gateway and transmitting the generated policy and accounting control rule.

According to the above-mentioned means for solving the problem, the present invention provides a mobile communication system supporting two or more mobile communication services according to different mobile communication standards, in which a subscriber policy management apparatus manages QoS for a user apparatus requesting connection and a policy And a PCC rule (Policy and Charging Control Rule), the subscriber profile information of the UE is checked, and when the UE is subscribed to a specific mobile communication service, the maximum bandwidth information To a value corresponding to the specific mobile communication service, and when the radio access device allocates and connects radio resources for the user equipment, the maximum bandwidth information is a value corresponding to a specific mobile communication service, If it is determined that the mobile communication service is supported, By activating the service function, the radio resources are allocated and the connection is performed, so that a specific mobile communication service can be selectively provided only to a user device subscribed to and supporting the specific mobile communication service.

In particular, the present invention provides a mobile communication service, which is subscribed to a specific mobile communication service and has a terminal capability capable of supporting the specific mobile communication service, to provide a specific mobile communication service, There is a great advantage that it can be implemented without changing the existing connection processing procedure.

1 is a diagram schematically illustrating a structure of a mobile communication system to which the present invention is applied.
2 is a block diagram showing a configuration of a radio access apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a subscriber profile management process of a wireless access device according to an embodiment of the present invention.
4 is a block diagram illustrating a configuration of a subscriber policy management apparatus according to an embodiment of the present invention.
5 is a flowchart illustrating a subscriber profile management method in a subscriber policy management apparatus according to an embodiment of the present invention.
6 is a flowchart illustrating an initial access procedure of a mobile communication system to which a method of managing a user context according to an exemplary 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. In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

Before describing a user context management method and an apparatus therefor according to the present invention, terms related to the present invention used in the following embodiments will be described as follows.

In the following description, the term " mobile communication service "is a service provided to communicate voice, image, and data through a user device without regard to a place, and may be provided based on various mobile communication standards and mobile communication technologies In particular, the mobile communication service according to the present invention can be classified according to the applied mobile communication standard. For example, the WCDMA mobile communication service and the CDMA2000 mobile communication service according to the 3G mobile communication standard, the 3.9 generation mobile communication standard And an LTE-A mobile communication service according to a fourth generation mobile communication standard, etc. The mobile communication service may be a mobile communication technology applied according to a mobile communication standard, In particular, in the case of LTE-A mobile communication service, Carrier Aggregation technology or CoMP technology can be applied. The.

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

In the following description, for the sake of convenience, an example in which an LTE mobile communication service and an LTE-A mobile communication service are provided together will be described. However, the present invention is not limited thereto, and can be applied to any mobile communication system providing two or more mobile communication services according to different mobile communication standards.

FIG. 1 is a diagram schematically illustrating a structure of a mobile communication system to which the present invention is applied, and a structure of a mobile communication system to which the present invention is applied will be described first.

First, a user apparatus 10 provided with a mobile communication service according to the present invention may be a wireless communication apparatus having a mobile communication function, for example, a smart phone, a tablet PC, or the like . In the present invention, the user equipment 10 is provided with a communication module according to a corresponding mobile communication standard, for example, an LTE modem and an LTE-A modem so as to be able to receive a mobile communication service provided through the mobile communication system . ≪ / RTI > At this time, the user equipment 10 having the LTE-A modem can support the LTE mobile communication service function such as Carrier Aggregation or CoMP defined in the 4th generation mobile communication standard. That is, it is possible to transmit and receive data using Carrier Aggregation or CoMP.

As shown in FIG. 1, the mobile communication system providing mobile communication service to the user equipment 10 includes management of subscriber information including a subscriber number and a location, connection with an external network, And an access network which is directly connected to the user device 10 through a radio resource to perform service connection and data transmission / reception. In the above, the external network may include at least one of a mobile communication network of another provider, an IP Multimedia Subsystem (IMS), or an Internet network.

The access network includes a plurality of radio access devices (100). Here, the wireless access point 100 acts as a base station or an access point that performs wireless data transmission / reception through a channel connected to the user device 10 after connecting the wireless channel, for example, (Base Station), a Base Transceiver Station (BTS), a Node B, an eNode B, and the like, and a wireless access pointer of a Wi-Fi network.

More specifically, the wireless access point 100 can be implemented in a BTS (Base Station Transmission System) in a synchronous (CDMA) network, and a base station controller (BSC) . In addition, it can be implemented as a NodeB and an RNC (Radio Network Controller) in an asynchronous (WCDMA) network and as an eNodeB as an evolved base station in an LTE (Long Term Evolution) network. In addition, the eNodeB can support only 3.9 generation mobile communication standard or up to LTE-A, the fourth generation mobile communication standard.

The wireless access devices 100 are distributed at different positions, have communication coverage of a predetermined range, and support the formation of a wireless communication channel for using the mobile communication service of the user device 10 entering the communication coverage. Specifically, the wireless access device 100 transmits a connection request from the user device 10 that has entered the communication coverage to the mobility management device 200, and transmits the access request from the user device 10 10).

Also, in the present invention, the wireless access device 100 may be a device supporting a specific mobile communication service (for example, an LTE-A mobile communication service) among two or more different mobile communication services provided by the mobile communication system, And non-supported devices. For example, while a plurality of radio access devices 100 provided in a mobile communication system to which the present invention is applied provide an LTE service, at least one of the plurality of radio access devices 100 may perform an LTE-A mobile communication service function, Specifically, Carrier Aggregation or CoMP can be selectively provided to the specific user device 10. [

To this end, the wireless access device 100 generates system information and broadcasts necessary control information in the communication coverage so that the user device 10 can search for itself. In this case, the system information includes a Public Land Mobile Network Identifier (PLMN ID), an eNB Cell Global ID (ECGI), and a Tracking Area ID TAI). ≪ / RTI >

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

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

Among the components of the core network, the mobility management apparatus 200 is a functional element for managing the movement of the user equipment 10, for example, a concept including a Mobility Management Entity (MME) defined in the 3GPP standard. Specifically, the mobility management apparatus 200 enters a communication coverage of an arbitrary wireless access point 100 and performs location registration and update with respect to the user apparatus 10 requesting connection. In addition, the mobility management apparatus 200 can manage the idle mode user equipment 10 and select the serving gateway 300 and the PDN gateway 400 to manage the user equipment 10 . The mobility management apparatus 200 may also perform functions related to roaming and authentication with respect to the user equipment 10. [ In addition, the mobility management apparatus 200 can process the bearer signal generated by the user apparatus 10. [ Here, a message transferred between the mobility management apparatus 200 and the user apparatus 10 for connection processing in a non-connected state is referred to as a NAS (Non Access Stratum) message. The NAS is an end-to-end protocol between the user equipment 10 and the core network, in particular, the mobility management apparatus 200, and is used for network connection management, authentication, call processing for establishing a bearer, session management,

At this time, the mobility management apparatus 200 supports a plurality of TAIs (Tracking Area Identity), and is connected to a plurality of wireless access points 100 that individually support TAIs. Accordingly, a plurality of wireless access points 100 supporting the same TAI have a connection with the same mobility management apparatus 200, and the wireless access points 100 supporting different TAIs are connected to other mobility management apparatuses 200 There is a possibility that you have.

The serving gateway 300 is connected to the mobility management apparatus 200 and the wireless access point 100 and serves as a mobility anchor at the time of handover between the wireless access points 100 of the user apparatus 10 or between networks . In particular, in the LTE network, the serving gateway 300 can serve as a mobility anchor when the user equipment 10 performs handover and as a mobility anchor when moving the 3GPP radio network.

The PDN gateway 400 allocates an IP (Internet Protocol) address of the user equipment 10. The PDN gateway 400 acts as a mobile anchor when moving between different types of networks (for example, a 3GPP wireless network and a non-3GPP wireless network). In addition, the PDN gateway 400 determines the bearer band to provide to the user equipment 10. [ In addition, the PDN gateway 400 performs forwarding and routing functions for packet data. To this end, the PDN gateway 400 obtains different policy and billing rules (PCC rules) for each user device 10 in cooperation with the subscriber policy management apparatus 600, and operates based on the policies and billing rules.

The subscriber information management apparatus 500 is a structure for managing information on the subscriber and mobility information. In particular, the subscriber information management device 500 stores service subscription information for each user device 10 and provides the service subscription information to the mobility management device 200. The service subscription information includes not only supplementary service subscription information but also subscription information for any mobile communication service based on different mobile communication standards provided in the mobile communication system. In addition, the subscriber information management device 500 registers and updates the mobility information of the user device 10 in accordance with the location registration / update request from the mobility management device 200. [

Lastly, the subscriber policy management apparatus 600 is for performing QoS adjustment between the core network and the external network (packet data network). The subscriber policy management apparatus 600 includes policy and charging control rules based on subscriber profile information And provides it to the PDN gateway 400. The subscriber policy management apparatus 600 may include a Policy and Charging Rules Function (PCRF) defined in 3GPP.

The user equipment 10 is connected to an external packet data network (PDN) such as an IMS network or the Internet via a data transmission path via the wireless access point 100, the serving gateway 300 and the PDN gateway 400. [ ). To this end, when the user device 10 becomes able to communicate with the specific wireless access device 100 selected through the search procedure in accordance with the wireless link synchronization, the mobility management device 200 transmits the NAS Request (NAS Request) message. The NAS request message may be an Attach Request message, a Tracking Area Update Request message, or a Service Request message, for example.

After the subscriber identification, the authentication and security procedure for the user equipment 10, the location registration procedure, and the session creation procedure are sequentially performed through the mobility management apparatus 200, the user equipment 10 transmits the authentication information to the wireless access apparatus 100, A data transmission path is formed through the serving gateway 300 and the PDN gateway 400, and data communication can be performed through the data transmission path.

However, if the user equipment 10 supports a specific mobile communication service (for example, LTE-A) function and is a normal subscriber subscribed to a specific mobile communication service, The user equipment 10 is selected and the LTE-A mobile communication service can be provided when the user equipment 10 enters the communication coverage of the radio access device 100 providing the LTE-A mobile communication service .

The subscriber policy management apparatus 600 according to the present invention checks the subscriber profile information of the user device 10 when a policy and a billing control rule for creating a session corresponding to the user device 10 are requested And determines whether or not the user equipment 10 is subscribed to a specific mobile communication service. When the user equipment 10 is subscribed to the specific mobile communication service, the maximum bandwidth Information to a value corresponding to the specific mobile communication service.

The subscriber policy management apparatus 600 provides the changed maximum bandwidth information and the specific mobile communication service subscription information of the user equipment 10 to the PDN gateway 400 so that the PDN gateway 400 reflects the changed maximum bandwidth information To perform session setting.

Here, the maximum bandwidth information represents a maximum user bandwidth available to the UE 10, which indicates UE-AMBR (Per User Equipment-Aggregated Maximum Bit Rate). The UE-AMBR limits the upper limit of the sum of MBR values of non-GBRs allocated to a single user equipment and can be updated by the Dynamic PCC rule. Accordingly, the PDN gateway 400 allocates the UE-AMBR for the user equipment 10 to a value specified for a specific mobile communication service by applying the Dynamic PCC rule, and proceeds to establish the session.

The maximum bandwidth information thus changed is provided to the wireless access point 100 through the mobility management apparatus 200. When the wireless access point 100 allocates radio resources to the user apparatus 10 and establishes a connection, Based on the maximum bandwidth information transmitted from the management apparatus 200, determines whether the user apparatus 10 is subscribed to a specific mobile communication service, and further determines, as the terminal capability information provided from the user apparatus 10, (10) can support a specific mobile communication service function. If all of the mobile communication service functions are satisfied, the specific mobile communication service function is activated to allocate the radio resources and perform a connection procedure with the user equipment (10). Here, the specific mobile communication service function may be, for example, Carrier Aggregation or CoMP according to LTE-A.

According to another aspect of the present invention, there is provided a mobile communication system for supporting two or more mobile communication services according to different mobile communication standards, the mobile communication system including a subscriber who is subscribed to a specific mobile communication service according to a specific mobile communication standard, It is possible to select a device and easily provide a specific mobile communication service.

2 is a block diagram showing a configuration of a radio access device 100 according to an embodiment of the present invention.

2, the wireless access apparatus 100 may include a wireless communication unit 110, a core network communication unit 120, and a control unit 130 as components.

The wireless communication unit 110 is configured to transmit and receive data through a wireless channel by being connected to the user device 10 entering the communication coverage (for example, Area 1) through the allocated radio resources. At this time, the wireless communication unit 110 may provide a wireless interface according to the E-UTRA protocol, for example.

The core network communication unit 120 is a component for communicating with components on the core network side, specifically, the mobility management apparatus 200 and the serving gateway 300. Here, the communication interface between the mobility management apparatus 200 and the serving gateway 300 may be based on different protocols. For example, the mobility management apparatus 200 transmits / receives a control message through the S1-AP protocol and transmits / receives data to / from the serving gateway 300 according to the GTP-U protocol. The core network communication unit 120 may include two or more communication interface units that communicate with each other according to different communication protocols.

The control unit 130 controls the entire operation of the wireless access point 100. As described above, the control unit 130 generates control information necessary for the corresponding communication coverage as system information so that the user apparatus 10 can search for itself Transmits a connection request from the user apparatus 10 that has received the connection request to the mobility management apparatus 200 and allocates radio resources to the user apparatus 10 under the control of the mobility management apparatus 200 And controls overall operation. In performing such a process, the control unit 130 selects a user device 10 that is subscribed to a specific mobile communication service and can support a specific mobile communication service function, and controls the mobile communication service function to provide a specific mobile communication service function.

3 is a flowchart illustrating an operation process of the wireless access device 100 according to an embodiment of the present invention, and the operation of the controller 130 according to the present invention will be described in detail with reference to the flowchart.

3, the controller 130 of the wireless access device 100 according to the present invention can receive the maximum bandwidth information allocated to the user apparatus 10 through the mobility management apparatus 200 (S105 ). The maximum bandwidth information may be generated by the subscriber identification procedure, the authentication / security procedure, and the session creation from the user equipment 10 completing the session creation procedure to the PDN gateway 400 to the wireless access apparatus 100 and the serving gateway 300 Is transmitted through an initial context setup request message transmitted from the mobility management apparatus 200 to the wireless access point 100. The initial context setup request message may include a UE-AMBR, an E-RAB ID, an E-RAB QoS, an S1S-GW TEID, security related information, and an NAS message (Attach Accept). Here, the UE-AMBR is the maximum bandwidth information that can be allocated to the UE 10, and when the UE 10 is subscribed to a specific mobile communication service, And PDN gateway 400 to a value designated for a specific mobile communication service.

Accordingly, when the maximum bandwidth information is received from the mobility management apparatus 200, the controller 130 of the wireless access point 100 compares the received maximum bandwidth information with a reference value for a specific mobile communication service (S110 ), And determines that the user equipment 10 is subscribed to a specific mobile communication service when the reference value is greater than the reference value (S115).

If it is determined that the user equipment 10 is subscribed to the specific mobile communication service, the control unit 130 of the wireless access device 100 determines whether the user equipment 10 performs specific mobile communication based on the terminal capability information acquired from the user equipment 10 It is confirmed whether the communication service is supported (S120, S125).

The control unit 130 activates the specific mobile communication service function when the user apparatus 10 is subscribed to a specific mobile communication service and the user apparatus 10 supports a specific mobile communication service function (S130) . Accordingly, the radio access device 100 allocates radio resources through the specific mobile communication service function, for example, Carrier Aggregation or CoMP function, and connects with the user device 10 through the allocated radio resource to transmit data Send and receive.

Conversely, if the received maximum bandwidth information is less than the reference value or if the user equipment 10 does not support a specific mobile communication service function, the control unit 130 of the wireless access point 100 deactivates the specific mobile communication service function. In this case, the radio access device 100 can allocate radio resources in a state in which the specific mobile communication service function, for example, Carrier Aggregation or CoMP function is not applied, and transmit / receive data through the allocated radio resources .

 In the above description, it is assumed that the wireless access point 100 supports a specific mobile communication service function. However, only some of the plurality of radio access devices 100 provided in the mobile communication system according to the present invention may have a specific mobile communication service function, and even if they have a specific mobile communication service function, There may be a case where the specific mobile communication service function is disabled according to the situation. For this, the controller 130 of the wireless access device 100 determines whether the wireless access point 100 supports a specific mobile communication service, that is, whether the wireless access point 100 has a specific mobile communication service function, It is possible to further confirm whether the communication service function can be normally operated. In this case, the steps S110 to S135 may be performed.

4 is a block diagram illustrating a configuration of a subscriber policy management apparatus 600 for controlling the maximum bandwidth information of a user context to be changed according to a subscription to a specific mobile communication service in the mobile communication system according to the present invention.

Referring to FIG. 4, the subscriber policy management apparatus 600 according to the present invention may include a communication interface unit 610, a storage unit 620, and a control unit 630.

The communication interface unit 610 is configured to communicate with the PDN gateway 400 and may operate according to, for example, a Diameter protocol.

The storage unit 620 is a device for storing data necessary for operation of the subscriber policy management apparatus 600 and may store subscriber profile information including service subscription information for each user device 10. [ Although the storage unit 620 is shown as a component in the subscriber policy management apparatus 600 in the present embodiment, the storage unit 620 may be a separate Subscriber Profile Repository (SPR) distinguished from the subscriber policy management apparatus 600, And may be connected through a communication protocol such as Diameter to provide subscriber profile information related to the subscriber and the subscriber according to a request of the subscriber policy management device 600. [

The control unit 630 is a configuration for controlling the entire operation of the subscriber policy management apparatus 600 that generates and provides a policy for QoS management and a PCC rule for each user apparatus 10. [ In particular, while generating the PCC rule, the controller 630 determines whether the user equipment 10 is subscribed to a specific mobile communication service based on the subscriber profile information. If the subscriber profile information is subscribed to the user equipment 10, And controls the allocated maximum bandwidth information to be updated to a value designated for the specific mobile communication service. The operation related to this will be described with reference to FIG.

5 is a flowchart illustrating an operation procedure of the subscriber policy management apparatus 600 for user context management according to the present invention.

5, the subscriber policy management apparatus 600 receives a request for a policy and a billing control rule for creating a session corresponding to the user apparatus 10 from the PDN gateway 400 through the communication interface unit 610 (S205 ).

In this case, the controller 630 of the subscriber policy management apparatus 600 checks the subscriber profile information of the user apparatus 10 from the storage unit 620 to determine a policy and a billing control rule for the user apparatus 10 (S210).

At this time, the controller 630 of the subscriber policy management device 600 may further determine whether the user device 10 is subscribed to a specific mobile communication service based on the subscriber profile information (S215).

When the user equipment 10 is subscribed to a specific mobile communication service, the subscriber policy management apparatus 600 transmits the maximum bandwidth information allocated by the mobility management apparatus 200 to the user equipment 10, To a value corresponding to the service (S220).

The control unit 630 of the subscriber policy management apparatus 600 provides the changed maximum bandwidth information and specific mobile communication service subscription information of the user equipment 10 to the PDN gateway 400 together with the policy and billing control rules, The PDN gateway 400 reflects the changed maximum bandwidth information to perform the session setup (S225).

Here, the maximum bandwidth information is the UE-AMBR, which can be updated by the Dynamic PCC rule.

The PDN gateway 400 allocates the UE-AMBR for the UE 10 to a value designated for a specific mobile communication service by applying the Dynamic PCC rule, and proceeds to establish a session.

The maximum bandwidth information thus changed is provided to the mobility management apparatus 200 through the PDN gateway 400 and the serving gateway 300. The mobility management apparatus 200 then reflects the changed maximum bandwidth information to the user context And provides it to the wireless access device 100.

As described above, when the radio resource is allocated to the user equipment 10 and the connection is established, the radio access device 100 transmits the maximum bandwidth information transmitted from the mobility management apparatus 200 to the user equipment 10 is subscribed to a specific mobile communication service and determines whether the user equipment 10 can support a specific mobile communication service function as the terminal capability information provided from the user equipment 10, It is possible to activate the specific mobile communication service function and allocate the radio resources and perform the connection procedure with the user equipment 10. [

6 is a flowchart illustrating an initial access procedure of a mobile communication system to which a method of managing a user context according to an exemplary embodiment of the present invention is applied. In particular, FIG. 6 is an exemplary diagram based on a connection procedure according to a mobile communication standard according to the 3GPP proposal.

Referring to FIG. 6, when the user apparatus 10 is to be connected to the mobile communication system by power on or the like, the mobility management apparatus 100 connected to the radio access apparatus 100 through the specific radio access apparatus 100 selected through the search procedure And transmits a connection request to the device 200 (S305). The connection request is transmitted through an Attach request message of the NAS message and is transmitted to the user equipment 10 using the identification information of the user equipment 10 such as International Mobile Equipment Identity (IMSI), Globally Unique Temporary Identifier (GUTI) Identity).

 If the user equipment 10 transmits a connection request including a GUTI based on the connection information of the previous network, the mobility management apparatus 200 determines whether the user equipment 10 has previously connected It is possible to perform the identification procedure for obtaining the IMSI information for the user equipment 10 by receiving the information of the user equipment 10 from the mobility management apparatus of one network.

Then, the mobility management apparatus 200 receiving the connection request of the user equipment 10 performs a subscriber authentication and security procedure for the user equipment 10 (S310). This is because the mobility management apparatus 200 requests and receives the authentication information from the subscriber information management apparatus 500 based on the identification information (IMSI) of the user apparatus 10, 10, and generating and setting a security key with the user device 10 after authentication. Thereafter, the control message can be encrypted and transmitted based on the generated security key.

After completing the subscriber authentication and security procedures, the mobility management apparatus 200 may perform a location registration procedure for the user apparatus 10 (S315). More specifically, the mobility management apparatus 200 registers the location of the user apparatus 10 and transmits the location information of the user apparatus 10 to the subscriber information management apparatus 500 in order to check which service the user can use. (Update Location request) to the mobile station. The subscriber information management apparatus 500 that has received the registration information registers the identification information of the mobility management apparatus 200 as the location information of the user apparatus 10, And transmits the extracted subscriber profile information to the mobility management apparatus 200 through an Update Location ACK message. 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 (UE0AMBR, QCI, ARP, APN-AMBR, , And subscription information for a particular mobile communication service (e.g., LTE-A).

Accordingly, the mobility management apparatus 200 stores the subscriber profile information received from the subscriber information management apparatus 500. At this time, the maximum bandwidth information for the UE 10, i.e. UE-AMBR, can be allocated by the mobility management apparatus 200. [

In addition, after the location registration procedure is performed, the mobility management apparatus 200 selects the serving gateway 300 and the PDN gateway 400 using the stored subscriber profile information, and transmits the selected serving gateway 300 and / And performs a session creation procedure for the user device 10 through the PDN gateway 400. [

This is accomplished by the mobility management apparatus 200 transmitting a session creation request to the selected serving gateway 300. The session creation request is transmitted to the PDN gateway 400 through the serving gateway 300, The PDN gateway 400 allocates an IP address for the user equipment 10 and transmits the IP address to the subscriber policy management apparatus 600 through the subscriber policy management apparatus 600 for resource allocation and QoS control according to the subscription service ) And a billing control rule (S320). Here, the policy and billing control rule request can be sent via a CCR message.

The subscriber policy management apparatus 600 generates a policy and a billing control rule corresponding to the subscription service based on the subscriber profile information. At this time, the subscriber policy management apparatus 600 according to the present invention extracts (UE-AMBR) allocated to the user equipment 10 is set to a value set in correspondence with a specific mobile communication service when the user equipment 10 is subscribed to the mobile communication service (S325).

When the subscriber policy management apparatus 600 provides policy and billing control rules to the PDN gateway 400, the subscriber policy management apparatus 600 transmits the specific mobile communication service subscription information of the user equipment 10 together with the changed maximum bandwidth information , And the changed maximum bandwidth information is applied (S330). More specifically, the subscriber policy management apparatus 600 records and transmits the specific mobile communication service subscription information to the extension field of the CCR-U response, and provides the changed maximum bandwidth information to the Dynamic PCC rule.

The PDN gateway 400 applies the received policy and billing control rules. In particular, the PDN gateway 400 allocates the maximum bandwidth information set for the specific mobile communication service to the user equipment 10 by applying the changed maximum bandwidth information , The session setup proceeds.

Then, the PDN gateway 400 transmits a session creation response message to the mobility management apparatus 200 through the serving gateway 300 to inform information about the established session (S335). At this time, the maximum bandwidth information changed to the value set for the specific mobile communication service is transmitted together.

The mobility management apparatus 200 reflects information related to the session including the changed maximum bandwidth information in the user context of the user device 10 and stores the information in operation S340.

If the authentication and security, the location registration, and the session creation procedure are normally performed as described above, the mobility management apparatus 200 transmits a connection acceptance message (message) to the user apparatus 10 in response to the connection request through the wireless access apparatus 100 Transmits an initial context setup request message to the wireless access device 100 to perform a procedure for assigning a radio resource to the user equipment 10 at step S345. Here, the connection acknowledgment message is transmitted to the radio access station 100 through an Initial Context Setup Request message, which will be described later, in the S1 signaling connection, and then transmitted to the radio access station 100 through the RRC Connection Reconfiguration message in the RRC connection. And may be transmitted from the access device 100 to the user device 10. [ In addition, the initial context setup request message includes information necessary for connection with the user equipment 10, for example, security related information, performance information of the user equipment 10, bearer setting information, and the maximum bandwidth information .

Upon receiving the initial context setup request, the wireless access device 100 checks and compares the maximum bandwidth information and the terminal capability information among the information included in the initial context setup request in operation S350. More specifically, it is checked whether the maximum bandwidth information is greater than or equal to a reference value set for a specific mobile communication service to check whether the user device 10 is subscribed to a specific mobile communication service, And confirms whether the user device 10 supports a specific mobile communication service function using the performance information. In addition, the wireless access point 100 can further confirm whether it has a specific mobile communication service function and can provide it.

Then, in accordance with the result, the radio access device 100 activates or deactivates the specific mobile communication service function (S355). Specifically, when the user equipment 10 is subscribed to a specific mobile communication service and supports a specific mobile communication service function, the radio access device 100 can provide a specific mobile communication service function, And activates a function corresponding to a specific mobile communication service, for example, a carrier aggregation function.

The wireless access point 100 allocates radio resources to the user equipment 10 and establishes a connection by applying the activated specific mobile communication service function (S360). On the other hand, if the wireless access point 100 can not provide a specific mobile communication service function, or if the user device 10 is not subscribed to a specific mobile communication service, It is possible to allocate radio resources and perform connection establishment as defined in the LTE standard without applying a specific mobile communication service function (e.g., Carrier Aggregation).

Upon completion of the connection setup with the user device 10, the wireless access device 100 transmits an Initial Context Setup Response message to the mobility management apparatus 200 in response to the initial context setup request In step S365, the user device 10 notifies the mobility management apparatus 200 of the completion of the connection through the wireless access device 100 in response to the connection acceptance. The Attach Complete message is transmitted to the wireless access point 100 through the UL Information Transfer message and then transmitted to the mobility management apparatus 200 through the Uplink NAS Transport message. Lt; / RTI >

The mobility management apparatus 200 confirms that the radio connection between the user apparatus 10 and the radio access apparatus 100 has been completed in this manner and transmits the downlink SI TEID received from the radio access apparatus 100 to the serving gateway 300 And performs a session update procedure to be connected from the wireless access point 100 to the serving gateway 300 (S370).

The mobility management apparatus 200 notifies the PDN gateway 400 via the serving gateway 300 that the context setup for the user apparatus 10 has been normally performed. This can be sent via the extension field in the Modify Bearer Request.

The data transmission path is connected through the wireless access device 100, the serving gateway 300, and the PDN gateway 400 through the above-described process, so that the user device 10 can receive the data communication service.

The user context management method according to the present invention may be implemented in a form of software readable by various computer means and recorded in a computer-readable recording medium. Here, the recording medium may include program commands, data files, data structures, and the like, alone or in combination. Program instructions to be recorded on a recording medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. For example, the recording medium may be an optical recording medium such as a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, a compact disk read only memory (CD-ROM), a digital video disk (DVD) Includes a hardware device that is specially configured to store and execute program instructions such as a magneto-optical medium such as a floppy disk and a ROM, a random access memory (RAM), a flash memory, do. Examples of program instructions may include machine language code such as those generated by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like. Such a hardware device may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be exemplary and explanatory only and is not restrictive of the invention, It is self-evident to those who have knowledge. Furthermore, although specific terms are used in this specification and the drawings, they are used in a generic sense only to facilitate the description of the invention and to facilitate understanding of the invention, and are not intended to limit the scope of the invention.

Although the present specification and drawings describe exemplary device configurations, the functional operations and subject matter implementations described herein may be embodied in other types of digital electronic circuitry, or alternatively, of the structures disclosed herein and their structural equivalents May be embodied in computer software, firmware, or hardware, including, or in combination with, one or more of the foregoing. Implementations of the subject matter described herein may be embodied in one or more computer program products, i. E. One for computer program instructions encoded on a program storage medium of the type for < RTI ID = 0.0 & And can be implemented as a module as described above. The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter that affects the machine readable propagation type signal, or a combination of one or more of the foregoing.

A computer program (also known as a program, software, software application, script, or code) that is loaded on an apparatus according to the present invention and which implements the method according to the present invention may be a compiled or interpreted language, a program containing a priori or procedural language Language, and may be deployed in any form including standalone programs or modules, components, subroutines, or other units suitable for use in a computer environment. A computer program does not necessarily correspond to a file in the file system. The program may be stored in a single file provided to the requested program, or in multiple interactive files (e.g., a file storing one or more modules, subprograms, or portions of code) (E.g., one or more scripts stored in a markup language document). A computer program may be deployed to run on multiple computers or on one computer, located on a single site or distributed across multiple sites and interconnected by a communications network.

The present invention relates to a method and apparatus for joining a specific mobile communication service without changing a connection procedure by using maximum bandwidth information for limiting a maximum bandwidth used for each user apparatus while performing a connection procedure for a user apparatus, A user apparatus having a terminal capability capable of supporting a communication service can be selected to provide a specific mobile communication service.

10: User device 100: Wireless connection device
200: mobility management apparatus 300: serving gateway
400: PDN gateway
500: Subscriber information management device 600: Subscriber policy management device

Claims (10)

A wireless access device,
Receiving maximum bandwidth information allocated to the user equipment;
Comparing the received maximum bandwidth information with a reference value set for a specific mobile communication service to determine whether to join a specific mobile communication service;
Determining from the terminal capability information of the user equipment whether the user equipment supports a specific mobile communication service function;
And activating a specific mobile communication service function for the user device when it is determined that the user equipment is subscribed to a specific mobile communication service and supports a specific mobile communication service function, How to manage. 2. The method of claim 1, wherein receiving the maximum bandwidth information comprises:
Wherein the wireless access device is configured to receive an initial context setup request from the mobility management device and to extract maximum bandwidth information included in the initial context setup request. The method according to claim 1,
Further comprising the step of confirming whether the wireless access device itself can support the specific mobile communication service function before activating the specific mobile communication service function,
The step of activating the specific mobile communication service function may include determining whether the mobile communication device itself can support a specific mobile communication service function and the user equipment is subscribed to a specific mobile communication service and supports a specific mobile communication service function The method comprising: activating a specific mobile communication service function for the user device. The method of claim 3,
Wherein the specific mobile communication service function includes at least one of a carrier aggregation function and a coordination multi-point function. The subscriber policy management apparatus comprises:
Receiving information on a policy and a billing control rule for a user equipment from a PDN gateway;
Determining from the subscriber profile information of the user equipment whether the user equipment is subscribed to a specific mobile communication service;
Changing a maximum bandwidth information allocated to the user equipment to a value set for the specific mobile communication service when the mobile communication service is subscribed to the specific mobile communication service;
And providing a policy and an accounting control rule including the changed maximum bandwidth information to the PDN gateway. 6. The method of claim 5,
Wherein the changed maximum bandwidth information is applied by the PDN gateway to perform session establishment and then forwarded to the mobility management apparatus. 6. The method of claim 5,
Wherein the maximum bandwidth information is a UE-AMBR (Per User Equipment-Aggregated Maximum Bit rate). 6. The method of claim 5, wherein providing the policy and billing control rules to the PDN gateway comprises:
Further providing subscription information of a specific mobile communication service to the PDN gateway through an extension field of a CCR-U response message. The method includes determining whether a specific mobile communication service is subscribed to based on the maximum bandwidth information, receiving the maximum bandwidth information allocated to the user equipment, determining whether to join the specific mobile communication service based on the maximum bandwidth information, And if the user equipment is subscribed to a specific mobile communication service and supports a specific mobile communication service function, the control unit activates a specific mobile communication service function for the user equipment and allocates radio resources to the user equipment ;
A wireless communication unit for communicating with the user equipment through the allocated radio resources and communicating with the user equipment; And
And a core network communication unit for transmitting and receiving data including the maximum bandwidth information from the mobility management apparatus. The method comprising: generating a policy and a billing control rule from subscriber profile information of a user equipment, checking whether the user equipment is subscribed to a specific mobile communication service, and if the user equipment is subscribed to a specific mobile communication service, A control unit for changing the bandwidth information to a value set for the specific mobile communication service;
And a communication interface unit receiving a request for a policy and an accounting control rule for the user equipment from the PDN gateway and transmitting the generated policy and accounting control rule.

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