CN100428855C - System and method for implementing service of access terminal - Google Patents

Abstract

The present invention provides a service implementation system and method for an access terminal. The present invention sets roaming range information for the access terminal, and judges the location information of the access terminal during the service implementation process of the access terminal to determine whether to allow The access terminal continues to implement services, so that users who have not opened the roaming range service can only carry out services in the designated user area, and realize the roaming restriction on the access terminal; the present invention can meet the roaming restriction requirements of different communication systems; thus through The technical scheme provided by the invention satisfies the operator's requirement for limited mobility management of the access terminal, enabling the operator to more flexibly realize the operation and management of the communication network.

Description

System and method for implementing service of access terminal

technical field

The invention relates to the technical field of network communication, in particular to a service realization system and method of an access terminal.

Background technique

Roaming restriction refers to restricting the roaming range of mobile users. Based on considerations of policy constraints, mobile license issues, and mobile network differentiated competition, operators will have requirements for roaming restrictions. Flexible limits.

In the current CDMA2000EVDO system, it is not possible to implement roaming restriction, and therefore, cannot meet the operator's roaming restriction requirements.

Contents of the invention

The purpose of the present invention is to provide a service implementation system and method for an access terminal. By setting the roaming range information of the access terminal and judging the location information of the access terminal during the service implementation process of the access terminal, the The roaming restriction on the access terminal meets the operator's roaming restriction requirement. In order to achieve the above purpose, the present invention provides a service implementation system for an access terminal, including: a storage module and a service control module;

The storage module includes:

Storage sub-module 1: store the corresponding relationship between each user area and sector carrier frequency in the mobile network;

Storage sub-module 2: store user area information that allows/prohibits roaming of the access terminal;

The business control module includes:

Determining the current roaming sub-module: during the service process of the access terminal, obtain the sector information of the access terminal, and determine the current user area of the access terminal according to the corresponding relationship between the sector information of the access terminal and the storage sub-module 1, and output;

Authentication sub-module: according to the information stored in the storage sub-module 2 and the current user area of the access terminal, authenticate whether the access terminal is currently in the allowed roaming range, and output the authentication result;

The service control sub-module: when receiving the information of successful authentication, continue the service of the access terminal, and reject the service of the access terminal when receiving the information of authentication failure.

Both the first storage submodule and the second storage submodule are located in AN-AAA; or

The first storage sub-module is located in the AN-AAA, and the second storage sub-module is located in the HLR;

When the first storage submodule is located in the AN-AAA, and the second storage submodule is located in the HLR, an interface for information exchange is provided between the HLR and the AN-AAA.

The determining current roaming submodule is located in the AN-AAA, the service control submodule is located in the AN, and the authentication submodule is located in the AN-AAA or in the HLR.

The present invention also provides a service realization method of an access terminal, including:

a1. Set the corresponding relationship between each user area and sector carrier frequency in the mobile network;

a2. Set the user area information that allows the access terminal to roam;

b. In the process of the access terminal implementing services, obtain the sector information of the access terminal, and determine the current user area of the access terminal according to the sector information of the access terminal and the corresponding relationship, and determine the current user area of the access terminal according to the allowed access terminal The roaming user area information and the current user area of the access terminal authenticate whether the access terminal is currently within the allowed roaming range;

If the authentication is successful, continue the service of the access terminal;

If the authentication fails, the service of the access terminal is rejected.

Described step a2 specifically comprises:

Set the user area information that allows the access terminal to roam when using a predetermined service.

Both the correspondence in a1 and the information in a2 are set in AN-AAA; or

The corresponding relationship in a1 is set in AN-AAA, and the information in a2 is set in HLR.

The service process implemented by the access terminal in step b includes: AT activating the PPP connection process and AT activating state switching process.

Described step b specifically comprises:

When the access terminal implements the service, the AN-AAA obtains the sector information of the access terminal, and determines the current user area of the access terminal according to the sector information of the access terminal and the corresponding relationship;

AN-AAA judges whether the access terminal is currently within the allowed roaming range according to the current user area of the access terminal and the user area information that allows the access terminal to roam;

If within the allowed roaming range, continue the service of the access terminal;

If it is not within the allowed roaming range, deny the service of the access terminal.

Described step b specifically comprises:

AN-AAA acquires the sector information of the access terminal during the service process of the access terminal, determines the current user area of the access terminal according to the sector information of the access terminal and the corresponding relationship, and transmits it to the HLR;

According to the current user area of the access terminal and the user area information that allows the access terminal to roam, the HLR authenticates whether the access terminal is currently in the allowed roaming range, and transmits the authentication result to the AN-AAA;

When the AN-AAA receives the information that the authentication is successful, it continues the service of the access terminal, and when it receives the information that the authentication fails, it refuses the service of the access terminal.

From the description of the above technical solution, it can be seen that the present invention sets the roaming range information for the access terminal, and judges the location information of the access terminal during the service process of the access terminal, so that users who have not activated the roaming range service can only The service is carried out in the specified user area, and the roaming restriction on the access terminal is realized; the roaming range restriction on the AT in the present invention can be: the roaming range restriction on the AT using predetermined services, so that the roaming restriction function is more refined, such as restricting Certain services can be carried out while roaming, while other services cannot be used while roaming, which makes the policy of roaming restriction more flexible; the present invention can implement roaming restriction by using the combination of AN and AN-AAA, and also A combination of AN, AN-AAA and HLR can be used to implement roaming restriction, so that the technical solution of the present invention can meet the roaming restriction requirements of different communication systems; thus, the technical solution provided by the present invention meets the requirements of operators for access terminals. The demand for limited mobility management enables operators to more flexibly realize the operation and management of communication networks.

Description of drawings

FIG. 1 is a first schematic diagram of a service realization system of an access terminal according to the present invention;

Fig. 2 is a flow chart 1 of the service realization method of the access terminal of the present invention;

FIG. 3 is the second flow chart of the service implementation method of the access terminal of the present invention;

FIG. 4 is a second schematic diagram of a service realization system of an access terminal according to the present invention.

Detailed ways

During the service process of the access terminal, the network side can easily obtain the location information of the access terminal. If the roaming range information in the mobile network is set for the access terminal, the network side can Information and roaming range information determine whether the access terminal is within its allowed roaming range, so that the network side can restrict the services of the access terminal, so as to achieve the purpose of restricting the roaming range of the access terminal.

Therefore, the core of the method and system of the present invention lies in: setting the roaming range information of the access terminal in the mobile network, obtaining the current roaming information of the access terminal during the service process of the access terminal, and according to the current roaming information of the access terminal Roaming information, roaming range information of the access terminal to judge whether the access terminal is currently within the allowed roaming range, if within the allowed roaming range, continue the service of the access terminal, if not within the allowed roaming range, reject The service of the access terminal.

The technical solution provided by the present invention will be further described below based on the core idea of the present invention.

For the mobile network, firstly, the coverage of the mobile network needs to be divided into several User Zones (user areas), that is, the coverage of the mobile network is divided into blocks, and the coverage of each block is a User Zone. Each User Zone can consist of several adjacent sectors.

Then, the present invention needs to set the roaming range information for the access terminal, that is, assign the access terminal the User Zone that allows it to roam, such as setting the User Zone that the user can roam when opening an account. The roaming range information here can be set for the access terminal, or it can be set for the access terminal and the service, that is, when the user zone that allows the roaming is allocated to the access terminal, the allowed service information can be added.

When the roaming range information is set for the access terminal, the network side does not restrict the services that the access terminal can implement within the allowed roaming range; when the roaming range information is set for the access terminal and services, the network side does not restrict the roaming The services realized within the roaming range are restricted, that is, the access terminal can only realize the predetermined services within the roaming range, so that the mobile network can effectively control which services the access terminal implements in which User Zone.

The roaming range information set for the access terminal may be specifically embodied as: setting the corresponding relationship between each user area and sector carrier frequency in the mobile network, and setting the user area information that allows the access terminal to roam. Here, setting the user area information that allows the access terminal to roam may be: setting the user area information that allows the access terminal to roam when using a predetermined service. In the following description, the user area information that allows the access terminal to roam includes the meaning of the user area information that allows the access terminal to roam when using a predetermined service.

The network side of the mobile network should store the corresponding relationship between each User Zone and sector carrier frequency, where the corresponding relationship can be the corresponding relationship between User Zone ID and sector carrier frequency. When the mobile network is an EVDO network, the corresponding relationship between the User Zone ID and the sector carrier frequency can be stored in the AN-AAA data table.

After the above settings are made, when the access terminal is implementing services, such as when the access terminal is activating a PPP connection or performing an active handover, the access terminal can report the sector information where it is located to the network side. In this way, the network The network side can determine the current User Zone ID corresponding to the access terminal according to the correspondence between the User Zone ID and the sector carrier frequency. Afterwards, the network side can determine the current corresponding User Zone ID of the access terminal according to the preset user zone information that allows the access terminal to roam. Whether the User Zone ID belongs to the User Zone ID information that allows roaming. If so, it is determined that the access terminal is within the allowed roaming range. The access terminal continues its business; if it does not belong, it is determined that the access terminal is within the prohibited roaming range, and the network side should send information such as rejecting PPP connection and refusing active state switching to the access terminal to refuse the access terminal to continue its roaming. business.

Since the network side can easily determine the services that the access terminal needs to implement from the information transmitted by the access terminal, when the roaming range information of the access terminal is set for the access terminal and services, the network side can also realize the The specific process of restricting the roaming range of the access terminal is basically the same as that described above, and will not be described in detail here.

The service realization system of the access terminal of the present invention mainly includes: a storage module and a service control module.

The main function of the storage module is to store the roaming range information of the access terminal in the mobile network. The function of the storage module is realized by the first storage sub-module and the second storage sub-module. Storage sub-module 1 is mainly used to store the corresponding relationship between user areas and sector carrier frequencies in the mobile network. The storage sub-module 2 is mainly used for storing user area information that allows the access terminal to roam.

The main function of the service control module is: during the process of implementing services at the access terminal, such as during the PPP connection or the process of allowing active state switching, according to the current roaming information of the access terminal, storage sub-module 1 and storage sub-module 2 store information to control the service of the access terminal.

The main functions of the service control module are realized by the determination of the current roaming sub-module, the authentication sub-module and the service control sub-module. It is determined that the current roaming sub-module and the authentication sub-module are all set in the AN-AAA, and when the service control sub-module is set in the AN, the first storage sub-module and the second storage sub-module are all set in the AN-AAA, at this time, the present invention The system is shown in Figure 1.

In Figure 1, when the AT activates the PPP connection, or performs Active switching, that is, when the active switching is allowed, the current sector carrier frequency information such as the sector carrier frequency index Sector id is reported to the AN-AAA through the AN, and the AN- The determination of the current roaming sub-module in the AAA queries the corresponding relationship data table between the UserZone ID and the sector carrier frequency in the storage sub-module 1 according to the Sector id, and can obtain the UserZone ID where the access terminal is currently located, and transmit it to the authentication sub-module, Then, the authentication sub-module performs authentication by querying the user zone information that allows the access terminal to roam in the storage sub-module 2 according to the User Zone ID where the access terminal is currently located, to determine whether the access terminal is allowed to continue the service, and the authentication The results shall be transferred to the service control sub-module of the AN. In this way, when the service control sub-module receives the successful authentication result, it allows the access terminal to continue the service by sending a Traffic Channel Assignment message to the AT or the like. When the service control sub-module receives the result of authentication failure, it rejects the access terminal to continue the service by sending a ConnectionDeny message to the AT or other methods. In this way, when the AT activates the PPP connection and switches the Active state, the roaming range of the AT is limited.

In the above implementation process, the present invention can extend the A12 interface message between AN and AN-AAA, such as extending the A12RADIUS Attributes message, so that the AN can query whether the AT can implement services in the current user area through the A12 interface message.

Taking the process of AT activating a PPP connection as an example, the service implementation method of the access terminal of the present invention will be described with reference to FIG. 2 .

In Fig. 2, in step 2-1, when the AT needs to activate the PPP connection, it reports a ConnectionRequest message to the AN.

In step 2-2, when the AN receives the ConnectionRequest message reported by the AT, it transmits the SectorId Lis, which is the cell list where the AT is currently located, to the AN-AAA through the A12Access Request message.

Go to step 2-3, AN-AAA searches the corresponding relationship data table between User Zone ID and sector carrier frequency according to the SectorId List carried in the A12Access Request message, obtains the current User Zone ID of AT, and then, according to the current User Zone of AT The ID looks up the user area information that allows the access terminal to roam, so as to determine whether the AT can access in the current cell. If the current User Zone ID of the AT belongs to the user area information that allows the access terminal to roam, AN-AAA determines that the AT can access in the current cell, and sends an A12Access Accept message to the AN; The AN-AAA determines that the AT cannot access the current cell, and sends an A12Access Reject message to the AN.

Go to step 2-4, when AN receives the A12Access Accept message, assign a traffic channel to AT, and send a TrafficChannelAssignment message to AT; when AN receives the A12Access Reject message, reject AT's PPP connection establishment request, and send a ConnectionDeny message to AT .

The method for realizing the service of the access terminal of the present invention will be described below with reference to FIG. 3 , taking the handover in the AT active state as an example.

In Fig. 3, in step 3-1, when the active set of the AT changes, that is, an active state handover is required, the AT sends a RouteUpdate message to the AN.

In step 3-2, when the AN receives the RouteUpdate message reported by the AT, it transmits the SectorId List, which is the cell list where the AT is currently located, to the AN-AAA through the A12Access Request message.

Go to step 3-3, AN-AAA searches the corresponding relationship data table between User Zone ID and sector carrier frequency according to the SectorId List carried in the A12Access Request message, obtains the current User Zone ID of AT, and then, according to the current User Zone of AT The ID looks up the user area information that allows the access terminal to roam, so as to determine whether the AT can access in the current cell. If the current User Zone ID of the AT belongs to the user area information that allows the access terminal to roam, AN-AAA determines that the AT can access in the current cell, and sends an A12Access Accept message to the AN; The AN-AAA determines that the AT cannot access the current cell, and sends an A12Access Reject message to the AN.

In step 3-4, when AN receives the A12Access Accept message, it notifies AT to update the active set by sending a TrafficChannel Assignment message to AT; when AN receives the A12Access Reject message, it does not initiate the operation of updating the active set.

The present invention needs to expand the A12 interface message so that the AN can report the SectorID List of the access terminal and the Cause attribute indicating the AT business process to the AN-AAA, such as AT activation of the PPP connection, activation state update, etc.

After extending the Access Request message in the A12 interface message, the SectorID List attribute in the Access Request message is defined as follows:

Type=26

Length = variable

Vendor-ID=2011

Vendor-Type=201

Vendor-Length = variable

Vendor-Value＝SectorID1(128Bit)+SectorID2(128Bit)+...

The number of SectorIDs carried in the Access Request message can be up to 6.

The Cause attribute in the Access Request message is defined as follows:

Type=26

Length=12

Vendor-ID=2011

Vendor-Type=202

Vendor-Length=6

Vendor-Value=×

Wherein, when Vendor-Value=0, it means that the AT activates the PPP connection, and when Vendor-Value=1, it means that the AT activates switching.

In the process of activating a PPP connection or active handover, if the location update authentication is successful, the access terminal is allowed to continue to carry out services, and the Access-Accept message sent by AN-AAA to AN must contain the Cause attribute, and the value of the Cause attribute The value is the same as the value of the Cause attribute in the Access-Request.

In the process of activating a PPP connection or active handover, if the location update authentication fails, the access terminal is prohibited from continuing to carry out services. The value is the same as the value of the Cause attribute in the Access-Request.

In the above description process for Figure 1, Figure 2, and Figure 3, if it is necessary to implement service-based roaming restrictions, when the access terminal performs the PPP connection activation process or the Active handover process, the AN needs to update the AT's current The service option and AT's current Sector id are reported to AN-AAA, and AN-AAA judges whether AT can use the current service in the current cell. Other processes are basically the same as those described in the above embodiments, and will not be described in detail here.

By improving the roaming range restriction on AT to: restricting the roaming range of AT using predetermined services, the roaming restriction function is more detailed, such as restricting certain services that can be carried out while roaming, while other services cannot be used in roaming use in case of Therefore, the policy of roaming restriction is more flexible.

When it is determined that the current roaming sub-module is set in AN-AAA, the authentication sub-module is set in HLR, and the service control sub-module is set in AN, storage sub-module 1 is set in AN-AAA, and storage sub-module 2 is set in HLR In this case, the system of the present invention is shown in Figure 4.

In Figure 4, when the AT activates the PPP connection, or performs Active switching, that is, when the active switching is allowed, the current Sector id of the call is reported to AN-AAA through the AN, and the determination of the current roaming sub-module in AN-AAA is based on the Sector id Query the corresponding relationship data table between the User Zone ID and the sector carrier frequency in the storage sub-module 1, you can obtain the User Zone ID where the access terminal is currently located, and transmit it to the authentication sub-module in the HLR, and then the authentication sub-module By querying the user zone information that allows the access terminal to roam in the storage submodule 2 of the HLR according to the User Zone ID where the access terminal is currently located, authentication is performed to determine whether the access terminal is allowed to continue the service, and the authentication result of the HLR should be It is transmitted to the determine current roaming submodule in AN-AAA. It is determined that the current roaming sub-module transmits the A12Access Accept message to the service control sub-module of the AN when receiving the information that the authentication is successful, and it is determined that the current roaming sub-module transmits the A12Access Reject message to the AN when receiving the information that the authentication fails. In the service control submodule of AN. In this way, when the service control sub-module receives the A12Access Accept message, it allows the access terminal to continue the service by sending a Traffic Channel Assignrment message to the AT or the like. When the service control sub-module receives the A12Access Reject message, it rejects the access terminal to continue the service by sending a ConnectionDeny message to the AT and other methods. In this way, the roaming range of the AT is limited when the AT activates the PPP connection and switches the Active state.

In the foregoing embodiments, an interface for information exchange needs to be added between the HLR and the AN-AAA. The user area information stored in the HLR that allows the access terminal to roam can be set when the user opens an account.

By adopting the HLR-based roaming restriction scheme, the unification of the roaming restriction scheme of CDMA20001X and CDMA2000EV-DO can be realized.

From the descriptions in the above embodiments, it can be seen that the present invention can realize the roaming restriction function of the access terminal in the communication system, so that users who have not subscribed to the roaming range service can only carry out business in the designated user area, which satisfies the requirements of the operation. To meet the operator's demand for limited mobility management of access terminals, the operator can more flexibly realize the operation and management of the communication network.

Although the present invention has been described by way of example, those of ordinary skill in the art know that there are many variations and changes in the present invention without departing from the spirit of the invention, and the claims of the application document of the present invention include these variations and changes.

Claims (9)

1. A service implementation system for an access terminal, comprising: a storage module and a service control module; The storage module includes: Storage sub-module 1: store the corresponding relationship between each user area and sector carrier frequency in the mobile network; Storage sub-module 2: store user area information that allows/prohibits roaming of the access terminal; The business control module includes: Determining the current roaming sub-module: during the service process of the access terminal, obtain the sector information of the access terminal, and determine the current user area of the access terminal according to the corresponding relationship between the sector information of the access terminal and the storage sub-module 1, and output; Authentication sub-module: according to the information stored in the storage sub-module 2 and the current user area of the access terminal, authenticate whether the access terminal is currently in the allowed roaming range, and output the authentication result; The service control sub-module: when receiving the information of successful authentication, continue the service of the access terminal, and reject the service of the access terminal when receiving the information of authentication failure. 2. A service realization system for an access terminal according to claim 1, characterized in that: Both the first storage submodule and the second storage submodule are located in AN-AAA; or The first storage sub-module is located in the AN-AAA, and the second storage sub-module is located in the HLR; When the first storage submodule is located in the AN-AAA, and the second storage submodule is located in the HLR, an interface for information exchange is provided between the HLR and the AN-AAA. 3. The service implementation system for access terminals according to claim 1, wherein the determining current roaming submodule is located in AN-AAA, the service control submodule is located in AN, and the authentication The submodules are located in AN-AAA or in the HLR. 4. A service implementation method for an access terminal, comprising the steps of: a1. Set the corresponding relationship between each user area and sector carrier frequency in the mobile network; a2. Set the user area information that allows the access terminal to roam; b. In the process of the access terminal implementing services, obtain the sector information of the access terminal, and determine the current user area of the access terminal according to the sector information of the access terminal and the corresponding relationship, and determine the current user area of the access terminal according to the allowed access terminal The roaming user area information and the current user area of the access terminal authenticate whether the access terminal is currently within the allowed roaming range; If the authentication is successful, continue the service of the access terminal; If the authentication fails, the service of the access terminal is rejected. 5. The method for implementing services of an access terminal according to claim 4, wherein the step a2 specifically includes: Set the user area information that allows the access terminal to roam when using a predetermined service. 6. A service implementation method for an access terminal according to claim 4, characterized in that: Both the correspondence in a1 and the information in a2 are set in AN-AAA; or The corresponding relationship in a1 is set in AN-AAA, and the information in a2 is set in HLR. 7. The method for implementing services of an access terminal according to claim 4, wherein the process of implementing services by the access terminal in step b includes: AT activating a PPP connection process or AT activating state switching process. 8. A method for implementing a service of an access terminal according to claim 4, wherein said step b specifically comprises: When the access terminal implements the service, the AN-AAA obtains the sector information of the access terminal, and determines the current user area of the access terminal according to the sector information of the access terminal and the corresponding relationship; AN-AAA judges whether the access terminal is currently within the allowed roaming range according to the current user area of the access terminal and the user area information that allows the access terminal to roam; If within the allowed roaming range, continue the service of the access terminal; If it is not within the allowed roaming range, deny the service of the access terminal. 9. A method for realizing services of an access terminal according to claim 4, wherein said step b specifically comprises: AN-AAA obtains the sector information of the access terminal during the service process of the access terminal, determines the current user area of the access terminal according to the sector information of the access terminal and the corresponding relationship, and transmits it to the HLR; According to the current user area of the access terminal and the user area information that allows the access terminal to roam, the HLR authenticates whether the access terminal is currently in the allowed roaming range, and transmits the authentication result to AN-AAA; When the AN-AAA receives the information that the authentication is successful, it continues the service of the access terminal, and when it receives the information that the authentication fails, it refuses the service of the access terminal.

Images