Method, system and equipment for packet network roaming limitation

A technology of packet domain and roaming authority, applied in the field of communication, can solve problems such as unresolved user roaming restrictions, unable to manage user roaming restrictions, and achieve effective management

Inactive Publication Date: 2008-06-11

HUAWEI TECH CO LTD

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AI-Extracted Technical Summary

Problems solved by technology

However, for the CDMA HRPD network, there is currently no solution to the roaming restriction on u...

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Method used

[0158] After the AAA server of the system provided by the embodiment of the present invention is responsible for signing the roaming authority with the user, the AAA server or the group access gateway is responsible for checking the roaming authority and making a roaming restriction judgment, so that the user can roam range of control.

[0171] The solution prov...

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Abstract

The invention discloses a method, system and device for realizing PS domain roaming restriction, belonging to the communication field, wherein the method includes the following steps: when a terminal user is accessed to a high-speed packet data network, positional information of a user can be obtained from a packet access gateway, and roaming permission information signed by the user can be obtained from an authorization, verification and charging AAA server; whether the positional information is matched with the roaming permission information signed by the user is judged; finally, according to the judgment, the invention carries out PS domain user roaming restriction. The system comprises a packet access gateway and an AAA server, wherein the AAA server comprises a positional information receiving unit, a first judgment unit and a first processing unit; the access gateway comprises a roaming permission information receiving unit, a second judgment unit and a second processing unit. Through expanding parameters, the invention transmits user positional information or roaming permission information signed by a user and realizes effective management of a roaming user; moreover, the invention solves the roaming restriction problem of a VoIP user, thereby lowering the operating risk of an operator.

Application Domain

Radio/inductive link selection arrangementsNetwork connections

Technology Topic

AuthorizationRoaming +2

Image

Examples

Experimental program(7)

Example Embodiment

[0035] Example 1

[0036] The embodiment of the present invention provides a method for restricting roaming in the packet domain. This embodiment uses the user AT to sign the user roaming authority in AN-AAA; when the user AT accesses the high-speed packet data network, when accessing the HRPD network, AN-AAA is responsible for checking the roaming authority and performing roaming restrictions. Method to implement packet domain roaming restriction, the specific steps are as follows:

[0037] S11, AN-AAA signs a roaming authority contract with the user AT, AN-AAA saves the roaming area authority information subscribed by the AT, where the information about the roaming authority subscribed by the user includes a list of roaming areas in which the user is allowed to roam. It can include a list of roaming areas where users are not allowed to roam;

[0038] Among them, the roaming area signed by AT in AN-AAA can be a collection of one or more sectors.

[0039] S12: When the AT accesses the HRPD network, after receiving the access request message from the AT, the AN sends an access request message to AN-AAA. The access request message carries the current location information of the AT, and the location information may be Sector list information of the current location area of the AT The content of the sector list information is the sector number, which is used to identify the coverage area of a carrier frequency on the base station;

[0040] When AT sends an access request message to AN-AAA, it uses RADIUS (Remote Authentication Dial In User Service) to extend the original A12 interface Access Request message to achieve location update, and increase the reporting of AT’s current location area sector List information SectorID List, Cause attributes, among them,

[0041] The SectorID List attribute can be defined as follows:

[0042] Type=26

[0043] Length = variable

[0044] Vendor-ID = 2011 (vendor name)

[0045] Vendor-Type=201

[0046] Vendor-Length = variable

[0047] Vendor-Value=SectorID1(128Bit)+SectorID2(128Bit)+...... (maximum 6)

[0048] The Cause property is defined as follows:

[0049] Type=26

[0050]Length=12

[0051] Vendor-ID = 2011 (vendor name)

[0052] Vendor-Type=202

[0053] Vendor-Length=6

[0054] Vendor-Value=

[0055] 0, activate PPP connection

[0056] 1. Active state switching.

[0057] S13. After receiving the access request message, AN-AAA learns the roaming authority information subscribed by the user from the information it saves, and determines whether the current location information of the AT carried in the access request message is consistent with the roaming authority subscribed previously If the information matches, the roaming restriction is performed according to the judgment result, wherein, if the stored roaming authority information is the roaming area list that allows the user to roam, it is judged whether the AT’s current location area sector list is in the said list that allows the AT to roam. In the user area list, if it is, the AT is allowed to access; otherwise, the AT is restricted from accessing services in the current sector; if the stored roaming authority information is a roaming area list that does not allow the user to roam, it is judged that the AT is currently Whether the location area sector list of is in the list of user areas where the AT is not allowed to roam, if so, the AT is not allowed to access; otherwise, the AT is allowed to access services in the current sector.

[0058] The following is a detailed description of whether the roaming restriction decision occurs when the AT activates the PPP connection or when the AT's active state is switched:

[0059] 1) When AT performs business access, it needs to activate the PPP connection. At this time, the roaming restriction judgment can be made when the AT activates the PPP connection. Refer to Figure 2, which is the flow chart of the roaming restriction method when the AT activates the PPP connection. Proceed as follows:

[0060] Step 101: AT sends a connection request message Connection Request to AN, where the connection request message is used to request the establishment of an air link connection with AN;

[0061] Step 102: After receiving the Connection Request message Connection Request sent by the AT, the AN sends an access request message A12 Access Request to AN-AAA. The access request message carries the SectorIDList information of the AT current location area sector list;

[0062] Step 103: After the AN-AAA receives the access request message A12 Access Request sent by the AN, it learns that the user has signed according to the AT current location area sector list information carried in the access request message and from the information stored by itself. Determine whether the list of sectors where the AT is currently located is in the list of user areas that the AT is allowed to roam. If so, go to step 104; otherwise, go to step 106;

[0063] Step 104: AN-AAA allows AT to access under the roaming sector, and sends an access acceptance message A12 AccessAccept to AN;

[0064] Step 105: After receiving the access acceptance message A12 Access Accept, the AN sends a traffic channel assignment message Traffic Channel Assignment to the AT. When the AT receives the traffic channel assignment message TrafficChannelAssignment, it successfully accesses the HRPD network and ends.

[0065] Step 106: AN-AAA does not allow AT to access in this sector, and sends an access rejection message A12 AccessReject to AN;

[0066] Step 107: After receiving the access rejection message A12 Access Reject, the AN sends a ConnectionDeny message to the AT, rejecting the AT to establish a PPP connection in the sector, and ending.

[0067] 2) The change of the roaming area when the AT is in the active state will cause the active set of the AT to change. At this time, the roaming restriction judgment can be made when the AT is switched in the active state. See Figure 3 for the roaming restriction when the AT is switched in the active state. The method flow chart, the specific steps are as follows:

[0068] Step 101': AT sends a route update message Route Update to AN;

[0069] When AT detects a location change, AT will actively initiate a location update operation and send a route update message RouteUpdate to AT;

[0070] Step 102': After receiving the route update message RouteUpdate sent by the AT, the AN sends an access request message A12 Access Request to AN-AAA. The access request message carries the current location information of the AT, that is, the current location area sector of the AT. List information SectorID List;

[0071] Step 103': After AN-AAA receives the access request message A12 Access Request sent by AN, it judges whether the AT current location area sector list information carried in the access request message is In the list of user areas where the AT is allowed to roam, if yes, go to step 104'; otherwise, go to step 106';

[0072] Step 104': AN-AAA allows AT to access under the roaming sector, and sends an access acceptance message A12 AccessAccept to AN;

[0073] Step 105': After receiving the access acceptance message A12 Access Accept, the AN notifies the AT to update the active set, and sends the traffic channel assignment message TrafficChannelAssignment to the AT. When the AT receives the traffic channel assignment message TrafficChannelAssignment, it successfully accesses the HRPD network. end.

[0074] Step 106': AN-AAA does not allow AT to access this sector, and sends an access rejection message A12 AccessReject to AN;

[0075] Step 107': After receiving the A12 Access Reject message, the AN does not initiate the update of the active set and ends.

[0076] In this step 107', the AN does not initiate the action to update the active set, so the AT cannot get the traffic channel assignment message TrafficChannelAssignment of the traffic channel under the roaming sector, and the AT cannot get the new traffic channel, which makes it impossible to transmit in the roaming area. For any data, the roaming restriction on the AT is successfully realized.

[0077] The embodiment of the present invention uses AN-AAA and AT to sign the roaming authority. When AT accesses the HRPD network, AN-AAA is responsible for checking the roaming authority and making roaming restriction judgments, thus realizing the control of the user's roaming range .

Example Embodiment

[0078] Example 2

[0079] The embodiment of the present invention provides a method for restricting roaming in the packet domain. In this embodiment, AN-AAA is responsible for signing the roaming authority with the AT. When the AT accesses the HRPD network, the AN sends an access request message to the AN-AAA. -AAA returns an access acceptance message to AN, which carries the signed roaming authority information, AN saves the access acceptance message, and AN is responsible for checking roaming authority, and the method of making roaming restriction judgment realizes packet domain roaming restriction ,Specific steps are as follows:

[0080] S21, AN-AAA and the user AT subscribe to the roaming authority of the AT, AN-AAA saves the roaming authority information of the AT subscription, wherein the information of the roaming authority subscribed by the user includes a list of roaming areas in which the user is allowed to roam. It may also include a list of roaming areas where users are not allowed to roam;

[0081] Then, when AT accesses the HRPD network, after AN receives the access request from AT, AN sends an access request message to AN-AAA.

[0082] S22. After receiving the access request message, AN-AAA returns an access request response message, namely, an access accept message, to AN. The access accept message carries the roaming authority information of the AT contract, and the original A12 is extended by RADIUS. Interface access accept message to carry roaming authority information;

[0083] When AN-AAA returns an access acceptance message to AN, it extends the original A12 Access Accept message through RADIUS, and the message carries the roaming authority information subscribed by the AT.

[0084] S23. The AN judges whether the AT’s current location information matches the previously signed roaming authority information, and performs roaming restriction according to the judgment result. Wherein, if the stored roaming authority information is a roaming area list that allows the user to roam, it judges that the AT is currently Whether the location area sector list of is in the list of user areas that the AT is allowed to roam, if so, the AT is allowed to access; otherwise, the AT is restricted from accessing services in the current sector; if the stored roaming authority information When it is a list of roaming areas where the user is not allowed to roam, it is judged whether the AT's current location area sector list is in the list of user areas where the AT is not allowed to roam. If it is, the AT is not allowed to access; otherwise Allow the AT to access services in the current sector.

[0085] The following is a detailed description of whether the roaming restriction decision occurs when the AT activates the PPP connection or when the AT's active state is switched:

[0086] 1) When AT performs business access, it needs to activate the PPP connection. At this time, the roaming restriction judgment can be made when the AT activates the PPP connection. Refer to Figure 4, which is the flow chart of the roaming restriction method when the AT activates the PPP connection. Proceed as follows:

[0087] Step 201: AT sends a connection request message Connection Request to AN, where the connection request message is used to request the establishment of an air link connection with AN;

[0088] Step 202: After receiving the Connection Request message Connection Request sent by AT, AN sends an access request message A12 Access Request to AN-AAA;

[0089] Step 203: After the AN-AAA receives the access request message A12 Access Request sent by the AN, it returns an access acceptance message A12 Access Accept to the AN. The access acceptance message A12 Access Accept carries the roaming authority information of the AT's subscription. That is, it carries a list of user areas allowed for the AT to roam;

[0090] Step 204: After receiving the access acceptance message A12 Access Accept returned by AN-AAA, the AN judges whether the SectorID List of the AT's current location area is in the user area list that allows the AT to roam. If so, go to step 205; Otherwise, go to step 206;

[0091]Step 205: The AN sends a traffic channel assignment message TrafficChannelAssignment to the AT, allowing the AT to establish a PPP connection under the roaming sector, and the process ends.

[0092] Step 206: The AN sends a connection rejection message ConnectionDeny to the AT, rejecting the AT to establish a PPP connection in the sector, and ending.

[0093] 2) The change of the roaming area when the AT is in the active state will cause the active set of the AT to change. At this time, the roaming restriction judgment can be made when the AT is switched in the active state. See Figure 5 for the roaming restriction when the AT is switched in the active state. The method flow chart, the specific steps are as follows:

[0094] Step 201': AT sends a route update message Route Update to AN;

[0095] When AT detects a location change, AT will actively initiate a location update operation and send a route update message RouteUpdate to AT;

[0096] Step 202': After receiving the Route Update message Route Update sent by AT, AN sends an access request message A12 Access Request to AN-AAA;

[0097] Step 203': After AN-AAA receives the access request message A12 Access Request sent by the AN, it returns an access acceptance message A12 Access Accept to the AN, and the access acceptance message A12 Access Accept carries the roaming authority information of the AT subscription. That is, it carries a list of user areas that the AT is allowed to roam;

[0098] Step 204': After receiving the access acceptance message A12 Access Accept returned by AN-AAA, the AN judges whether the SectorIdList of the AT's current location area is in the list of user areas that the AT is allowed to roam. If so, go to step 205 '; Otherwise, go to step 206';

[0099] Step 205': The AN notifies the AT to update the active set, sends a traffic channel assignment message TrafficChannelAssignment to the AT, and ends.

[0100] Step 206': The AN does not initiate the action of updating the active set and ends.

[0101] In this step 206', the AN does not initiate the action of updating the active set, and the AT cannot get the traffic channel assignment message TrafficChannelAssignment of the traffic channel under the roaming sector. Because the AT cannot get the new traffic channel, it cannot be transmitted in the roaming area. For any data, the roaming restriction on the AT has been successfully realized.

[0102] The embodiment of the present invention uses AN-AAA and AT to sign the roaming authority. When AT accesses the HRPD network, when AN sends an access request message to AN-AAA, AN-AAA returns to AN the user area that allows AT to roam. The access of the list accepts the message, and then, the AN is responsible for checking the roaming authority and making roaming restriction judgments, which realizes the control of the user's roamable range.

[0103] The packet access gateways in Embodiments 1 and 2 of the present invention take AN as an example.

Example Embodiment

[0104] Example 3

[0105] The embodiment of the present invention provides a method for restricting roaming in the packet domain. In this embodiment, AAA and AT are used to sign the roaming authority. When the PDSN authenticates the service access request to the AAA, the AAA is responsible for checking the roaming authority, and The method of making the roaming restriction judgment realizes the packet domain roaming restriction. The specific steps are as follows:

[0106] S31, AAA and the user AT sign the roaming authority of the AT, and AAA saves the roaming authority information of the AT contract. The information of the roaming authority of the user's subscription includes a list of roaming areas that the user is allowed to roam, and may also include non- The area list of roaming areas where the user is allowed to roam;

[0107] Among them, the roaming area signed by AN-AAA and AT can be a collection of one or more sectors.

[0108] S32: When the AT accesses the PDSN through the HRPD network, the PDSN sends an access request message RADIUSAccess Request to AAA, which carries the current location information of the AT, and the location information may be the current location area sector list information of the AT ;

[0109] When sending an access request message to AAA, the original RADIUS Access Request message is extended by RADIUS to achieve location update, and the SectorID List and Cause attributes of the sector list information reported in the current location area of the AT are added.

[0110] The content of the sector list information is the sector number, which is used to identify the coverage area of a carrier frequency on the base station.

[0111] S33. After receiving the access request message RADIUS Access Request, the AAA learns the roaming authority information of the user's subscription from the information it saves, and determines whether the current location information of the AT carried in the service access request message is the same as that of the previous subscription. If the roaming authority information matches, the roaming restriction is performed according to the judgment result. If the stored roaming authority information is a roaming area list that allows the user to roam, it is judged whether the AT’s current location area sector list is in the said allow the AT to perform roaming. In the roaming user area list, if it is, the AT is allowed to access; otherwise, the AT is restricted from accessing services in the current sector; if the stored roaming authority information is a roaming area list that does not allow the user to roam, it is judged Whether the current location area sector list of the AT is in the list of user areas where the AT is not allowed to roam, if so, the AT is not allowed to access; otherwise, the AT is allowed to access services in the current sector.

[0112] In the following, the embodiment of the present invention is described by taking the case where the roaming restriction decision occurs when the AT activates the PPP connection as an example. When AT performs business access, it needs to activate the PPP connection. At this time, the roaming restriction judgment can be made when the AT activates the PPP connection. Refer to Figure 6, which is the flow chart of the roaming restriction method when the AT activates the PPP connection. The specific steps are as follows :

[0113] Step 301: AAA signs a contract with the AT, the signed roaming authority information is the roaming area information that allows the AT to roam, and AAA saves the roaming authority information subscribed by the AT, that is, the list of user areas that the AT is allowed to roam;

[0114] Step 302: When the AT accesses the PDSN through the HRPD network, the PDSN sends an access request message RADIUS Access Request to AAA, which carries the current location area sector list information SectorID List of the AT;

[0115] Step 303: After receiving the access request message RADIUS Access Request sent by the PDSN, the AAA learns the user's subscription according to the SectorID List information of the AT current location area sector list carried in the access request message and the information stored by itself Determine whether the list of sectors where the AT is currently located is in the list of user areas that allow the AT to roam, if so, go to step 304; otherwise, go to step 306;

[0116] Step 304: AAA allows AT to access under the roaming sector, and sends an access acceptance message AccessAccept to PDSN;

[0117] Step 305: After the PDSN receives the Access Accept message, it allows the AT to access and ends.

[0118] Step 306: AAA does not allow AT to access under the roaming sector, and sends an access rejection message AccessReject to PDSN;

[0119] Step 307: After receiving the Access Reject message, the PDSN prohibits the AT from accessing and ends.

[0120] In addition, the roaming restriction decision can also occur when the AT is switched in the active state, because the change of the roaming area when the AT is in the active state will cause the active set of the AT to change. At this time, the roaming restriction judgment can be made when the AT is switched in the active state. The method is the same as above and will not be repeated here.

[0121] In the embodiment of the present invention, the service access gateway is illustrated by taking PDSN as an example, and in specific applications, it may also be an AGW (Access Gateway, access gateway) or the like.

[0122] In the embodiment of the present invention, the AAA and the AT sign the roaming authority. When the AT accesses the PDSN through the HRPD network, the AAA is responsible for checking the roaming authority and making roaming restriction judgments, thereby realizing the control of the user's roaming range.

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Classification and recommendation of technical efficacy words

Effective management

Method, system and equipment for packet network roaming limitation

A technology of packet domain and roaming authority, applied in the field of communication, can solve problems such as unresolved user roaming restrictions, unable to manage user roaming restrictions, and achieve effective management

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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