CN1992665B - Method for acquiring accessing gateway information of wireless LAN - Google Patents
Method for acquiring accessing gateway information of wireless LAN Download PDFInfo
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Abstract
The invention discloses a method to obtain wireless LAN access gateway information, the method including: packet data gateway sends the request to obtain the Wireless LAN access gateway information to the certification authentication billing server; after the certification authentication billing server receives the request to obtain the wireless LAN access gateway information, it obtains the wireless LAN access gateway information serviced for the user terminal currently, and sends the obtained wireless LAN access gateway information to the packet data gateway. In this invention, the related packet data gateway in the user terminal communication process obtains all relevant information of wireless LAN access gateway serviced for the user terminal, so that the packet data gateway sends all obtained relevant information of wireless LAN access gateway serviced for the user terminal to the network entities for processing user's data, in order to the network entities for processing user's data does data processing of user terminal.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method that makes packet data gateway obtain accessing gateway information of wireless LAN.
Background technology
Along with the rise and the development of wireless lan (wlan) technology, the intercommunication cooperative business of WLAN and various wireless mobile communication networks has become the emphasis of present development.When WLAN and third generation partner program (3GPP) network interworking, if user terminal is roamed, user terminal then inserts in the home network of 3GPP system by on-site WLAN, if user terminal is roamed, user terminal then at first inserts in the accesses network of 3GPP system by on-site WLAN, and then in the access belonging network.
In the intercommunication of WLAN and 3GPP network, WLAN (wireless local area network) IAD (WAG) among the WLAN and the packet data gateway (PDG) in the 3GPP network all play an important role in intercommunication.WAG can charge at the communication process that user terminal is carried out in WLAN, produces charge information; PDG then is the critical point of carrying out data interaction between the network entity of user terminal and responsible processes user data, such as, PDG can charge by the communication process that the 3GPP network is carried out to user terminal, and provide charge information to off-line accounting system by the Wz interface, so that off-line accounting system carries out a series of processes such as follow-up charging and business statistics analysis to this user terminal.In addition, in the intercommunication of WLAN and 3GPP network, when user terminal is roamed, PDG is arranged in the 3GPP network of user terminal ownership, when roaming took place user terminal, PDG can be arranged in the 3GPP network of user terminal ownership, also can be arranged in the 3GPP network of user terminal access.
When user terminal establishes a communications link by WLAN access 3GPP network requests, PDG can send to authentication (AAA) server and dispose strategy request, after aaa server receives the deployment strategy request, can obtain relevant information into the WAG of subscriber terminal service, and according to this relevant information to the WAG deployment strategy, return policy deployment to PDG then and reply.But at present, the relevant information in that aaa server does not but carry WAG in the policy deployment that PDG returns is replied that is to say, in the intercommunication of WLAN and 3GPP network, PDG can't obtain the relevant information of WAG, such as, the title of WAG and the address information of WAG etc.And because PDG is the critical point of carrying out data interaction between the network entity of user terminal and responsible processes user data, if PDG can't obtain the relevant information of WAG, then PDG can't provide the relevant information of WAG to the network entity of being responsible for processes user data, thereby brings great inconvenience for follow-up data service processing procedure.Such as, off-line accounting system must could be realized accurate billing to user terminal with reference to the charge information of the charge information of PDG and WAG, and because PDG can't obtain the relevant information of WAG, can't be by providing the relevant information of WAG to off-line accounting system with the information interactive process of off-line accounting system, like this, then caused off-line accounting system can't discern the charge information that WAG sends, can't realize accurate billing, thereby greatly reduced the QoS of network user terminal.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of obtaining accessing gateway information of wireless LAN, so that PDG can provide the relevant information of WAG to the network entity of being responsible for processes user data.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of method of obtaining accessing gateway information of wireless LAN, this method comprises:
The request that A, packet data gateway will obtain accessing gateway information of wireless LAN is sent to authentication and authorization charging server;
B, authentication and authorization charging server are after receiving the request of obtaining accessing gateway information of wireless LAN, obtain the information of current WLAN (wireless local area network) IAD for subscriber terminal service, and the information of the WLAN (wireless local area network) IAD that obtained is sent to packet data gateway.
When described packet data gateway was arranged in the home network of user terminal, described authentication and authorization charging server was the authentication and authorization charging server in the user terminal home network.
When described user terminal is roamed, in step B, the described step of obtaining the information of current WLAN (wireless local area network) IAD for subscriber terminal service comprises: the information of obtaining current WLAN (wireless local area network) IAD for subscriber terminal service in the database of the special use from self or Home Network of the authentication and authorization charging server in the described user terminal home network.
This method further comprises: the information of WLAN (wireless local area network) IAD in other network of configuration in the authentication and authorization charging server in described user terminal home network or in the private database of Home Network;
When roaming takes place in described user terminal, in step B, the described step of obtaining the information of current WLAN (wireless local area network) IAD for subscriber terminal service comprises: the information of obtaining current WLAN (wireless local area network) IAD for subscriber terminal service in the database of the special use from self or Home Network of the authentication and authorization charging server in the described user terminal home network.
When roaming takes place in described user terminal, in step B, the described step of obtaining the information of current WLAN (wireless local area network) IAD for subscriber terminal service comprises: the request that the authentication and authorization charging server in the described user terminal home network will obtain accessing gateway information of wireless LAN is sent to the proxy authentication mandate accounting server in the user terminal access network; Proxy authentication mandate accounting server in this user terminal access network obtains the information of current WLAN (wireless local area network) IAD for subscriber terminal service from self or in private database of Home Network, and the information of the WLAN (wireless local area network) IAD that obtained is sent to authentication and authorization charging server in the user terminal home network; Authentication and authorization charging server in the user terminal home network obtains the information of WLAN (wireless local area network) IAD by reception.
When described packet data gateway was arranged in the accesses network of user terminal, described authentication and authorization charging server was the proxy authentication mandate accounting server in the user terminal access network.
In step B, proxy authentication mandate accounting server in the user terminal access network receives after the request of obtaining accessing gateway information of wireless LAN, and before obtaining accessing gateway information of wireless LAN, further comprise: the request that the proxy authentication mandate accounting server in the user terminal access network will obtain accessing gateway information of wireless LAN is sent to the authentication and authorization charging server in the user terminal home network, and the authentication and authorization charging server in the user terminal home network is sent to proxy authentication mandate accounting server in the user terminal access network with response message.
Authentication and authorization charging server in described packet data gateway and the described user terminal home network carries out information interactive process by self-defining message.
Proxy authentication mandate accounting server in described packet data gateway and the described user terminal access network carries out information interactive process by self-defining message.
Authentication and authorization charging server in described packet data gateway and the described user terminal home network carries out information interactive process by existing message.
Proxy authentication mandate accounting server in described packet data gateway and the described user terminal access network carries out information interactive process by existing message.
Described request of obtaining accessing gateway information of wireless LAN is an authentication request;
In step B, the authentication and authorization charging server in the described user terminal home network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the authentication and authorization charging server in the described user terminal home network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authentication response.
Described request of obtaining accessing gateway information of wireless LAN is an authentication request;
In step B, the proxy authentication mandate accounting server in the described user terminal access network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the proxy authentication mandate accounting server in the described user terminal access network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authentication response.
Described request of obtaining accessing gateway information of wireless LAN is an authorization requests;
In step B, the authentication and authorization charging server in the described user terminal home network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the authentication and authorization charging server in the described user terminal home network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authorization response.
Described request of obtaining accessing gateway information of wireless LAN is an authorization requests;
In step B, the proxy authentication mandate accounting server in the described user terminal access network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the proxy authentication mandate accounting server in the described user terminal access network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authorization response.
Described request of obtaining accessing gateway information of wireless LAN is the policy deployment request of carrying the accessing gateway information of wireless LAN required parameter;
In step B, the authentication and authorization charging server in the described user terminal home network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the authentication and authorization charging server in the described user terminal home network is carried at policy deployment with the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in replying.
Described request of obtaining accessing gateway information of wireless LAN is the policy deployment request of carrying the accessing gateway information of wireless LAN required parameter;
In step B, the proxy authentication mandate accounting server in the described user terminal access network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the proxy authentication mandate accounting server in the described user terminal access network is carried at policy deployment with the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in replying.
The information of described WLAN (wireless local area network) IAD comprises: the title of WLAN (wireless local area network) IAD, and/or, the address of WLAN (wireless local area network) IAD, and/or, the information of the public land mobile radio communication at WLAN (wireless local area network) IAD place.
Further comprise after step B: described packet data gateway is sent to the network entity of being responsible for the user data processing with the information of received WLAN (wireless local area network) IAD.
The network entity that described responsible user data is handled is an off-line accounting system.
This shows that in the present invention, related PDG can be retrieved as the various relevant informations of the WAG of subscriber terminal service by the reciprocal process with aaa server in the user terminal communication process.Like this, this PDG just can be in subsequent process be sent to the network entity of being responsible for processes user data with the various relevant informations of the WAG that is obtained, so that this network entity carries out the data handling procedure at user terminal.Such as, this PDG is sent to off-line accounting system with the various relevant informations of the WAG that obtained, this off-line accounting system then can identify the charge information that WAG sends according to the various relevant informations of received WAG, thereby realize accurate billing, greatly improved the QoS of network user terminal.
Description of drawings
Fig. 1 makes PDG obtain the flow chart of first kind of execution mode of WAG information by the existing message in the policy deployment process when user terminal is roamed in the present invention.
Fig. 2 makes PDG obtain the flow chart of second kind of execution mode of WAG information by the existing message in the policy deployment process when user terminal is roamed in the present invention.
Fig. 3 be in the present invention when roaming and PDG take place and are arranged in home network in user terminal the existing message by the policy deployment process make PDG obtain the flow chart of first kind of execution mode of WAG information.
Fig. 4 be in the present invention when roaming and PDG take place and are arranged in home network in user terminal the existing message by the policy deployment process make PDG obtain the flow chart of second kind of execution mode of WAG information.
Fig. 5 be in the present invention when roaming and PDG take place and are arranged in accesses network in user terminal the existing message by the policy deployment process make PDG obtain the flow chart of first kind of execution mode of WAG information.
Fig. 6 be in the present invention when roaming and PDG take place and are arranged in accesses network in user terminal the existing message by the policy deployment process make PDG obtain the flow chart of second kind of execution mode of WAG information.
Fig. 7 be in the present invention when PDG is arranged in the user terminal home network the existing message by licensing process make PDG obtain the flow chart of WAG information.
Fig. 8 be in the present invention when PDG is arranged in the user terminal access network the existing message by licensing process make PDG obtain the flow chart of WAG information.
Embodiment
Core concept of the present invention is: the request that PDG will obtain WAG information is sent to aaa server; Aaa server will be sent to PDG for the information of the WAG of subscriber terminal service after receiving the request of obtaining WAG information.
Wherein, when user terminal is roamed, above-mentioned PDG and aaa server are respectively PDG and the aaa server in the user terminal home network, that is to say that the detailed process of above-mentioned interacting message is: the request that the PDG in the user terminal home network will obtain WAG information is sent to the aaa server in the user terminal home network; Aaa server in the user terminal home network obtains the information of current WAG for subscriber terminal service after receiving the request of obtaining WAG information, and the information of the WAG that obtained is sent to PDG in the user terminal home network.
When user terminal is roamed, and when PDG was arranged in the home network of user terminal, the detailed process of above-mentioned interacting message can be sent to the aaa server in the user terminal home network for the request that: the PDG in the user terminal home network will obtain WAG information; The request that aaa server in the user terminal home network will obtain WAG information is sent to the aaa server of acting on behalf of in the user terminal access network; This acts on behalf of aaa server will be sent to aaa server in the user terminal home network for the information of the WAG of subscriber terminal service; Aaa server in the user terminal home network is sent to the information of the WAG that receives the PDG in the user terminal home network again.In addition, if dispose the information of the WAG in other network in the aaa server of user terminal home network, the interacting message situation when then the detailed process of above-mentioned interacting message also can be roamed with user terminal is identical.
When user terminal is roamed, and when PDG was arranged in the accesses network of user terminal, the detailed process of above-mentioned interacting message can be sent to the aaa server of acting on behalf of in the user terminal access network for the request that: the PDG in the user terminal access network will obtain WAG information; This acts on behalf of aaa server directly will be sent to PDG in the user terminal access network for the information of the WAG of subscriber terminal service, perhaps, the aaa server of acting on behalf of in the user terminal access network is sent to aaa server in the user terminal home network with the received request of obtaining WAG information, aaa server in the user terminal home network is sent to the aaa server of acting on behalf of in the user terminal access network with response message, after this is acted on behalf of aaa server and receives response message, obtain the information of WAG again, and the information of being obtained for the WAG of subscriber terminal service is sent to PDG in the user terminal access network.
In the detailed process of above-mentioned interacting message, each bar message can be the self-defining message of the present invention, also can be existing message.
In addition, need to prove, receive the relevant information of the WAG that aaa server sends at PDG after, PDG can be in subsequent process by with the information interactive process of the network entity of responsible processes user data, the various relevant informations of WAG are sent to the network entity of being responsible for processes user data, such as off-line accounting system.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
In following embodiment, be that example describes implementation procedure of the present invention in detail with the WAG information that makes PDG be retrieved as subscriber terminal service alternately by existing each bar message.
Fig. 1 makes PDG obtain the flow chart of first kind of execution mode of WAG information in the present invention when user terminal is roamed.Referring to Fig. 1, in the intercommunication of WLAN and 3GPP network, when user terminal was roamed, PDG was arranged in the home network of user terminal, at this moment, the present invention can specifically may further comprise the steps by the process that the existing message in the policy deployment process makes PDG obtain the relevant information of WAG:
Step 101: user terminal is set up the tunnel PDG that asks to be sent in the user terminal home network by WLAN.
Step 102: after the PDG in the user terminal home network receives the tunnel request of setting up, authentication request is sent to aaa server in the user terminal home network.
Here, after aaa server in the user terminal home network receives authentication request, obtain the information of user terminal by attaching position register/home subscriber server, and, according to the user terminal information that is obtained to after the subscriber terminal authority success, the authentication success message is sent to PDG in the user terminal home network.
Step 103: the PDG in the user terminal home network is after receiving the authentication success message, and structure carries the policy deployment request of WAG information request parameter, and the policy deployment request of being constructed is sent to aaa server in the user terminal home network.
Here, the PDG in the user terminal home network carries WAG information request parameter in the policy deployment request, is in order to return the relevant information of WAG by this WAG information request parameter notice aaa server.When concrete realization, also can not carry WAG information request parameter in this policy deployment request.
Step 104: after the aaa server in the user terminal home network received the policy deployment request of carrying WAG information request parameter, obtaining current was the information of the WAG of subscriber terminal service.
Here, the present invention can be in advance the information of all WAG in this aaa server place network of configuration in aaa server or in private database, such as, the title of WAG, and/or the address of WAG, and/or the information of the PLMN at WAG place (comprising Mobile Country Code MCC and Mobile Network Code etc.) etc.Like this, in this step, the user terminal number that carries in the aaa server basis policy deployment request that receives in the user terminal home network finds the information of corresponding WAG in self or in the private database, promptly having obtained current is the information of the WAG of subscriber terminal service.
Step 105: the aaa server in the user terminal home network is sent to WAG according to the information of the WAG that is obtained with the policy download request.
After step 106:WAG received the policy download request, the implementation strategy deployment was replied policy download the aaa server that is sent in the user terminal home network then.
Here, WAG can further carry the various information of self in the policy download that sends to aaa server is replied, such as the title of WAG, and/or the address of WAG, and/or the information (comprising Mobile Country Code MCC and Mobile Network Code etc.) of the public land mobile radio communication (PLMN) at WAG place etc.
Step 107: the aaa server in the user terminal home network is according to the WAG information request parameter of carrying in the policy deployment request, the information of WAG is carried at policy deployment is sent to PDG in the user terminal home network in replying.
Fig. 2 makes PDG obtain the flow chart of second kind of execution mode of WAG information in the present invention when user terminal is roamed.Referring to Fig. 2, in the intercommunication of WLAN and 3GPP network, when user terminal was roamed, PDG was arranged in the home network of user terminal, at this moment, the present invention can also specifically may further comprise the steps by the process that the existing message in the policy deployment process makes PDG obtain the relevant information of WAG:
Step 201～step 204 is all identical with all descriptions of step 101～step 104.
Step 205 is all identical with all descriptions of step 107.
According to process shown in Figure 2, after policy deployment is replied the PDG that is sent in the user terminal home network, aaa server in the user terminal home network can continue to carry out the process that the policy download request is sent to WAG, WAG carries out policy deployment after receiving the policy download request, then policy download is replied the aaa server that is sent in the user terminal home network.
Referring to Fig. 1 and Fig. 2, because the aaa server in the user terminal home network can obtain the information of WAG from the database of self or a special use, therefore, in order to return the information of WAG more in time to PDG, obtain in the process of WAG information at the PDG that makes shown in Figure 2, aaa server in the user terminal home network is not carried out and shown in Figure 1 is carried out mutual process with WAG, that is to say, aaa server in the user terminal home network is not after the policy download that receives WAG is replied, again the information of WAG is sent to the PDG in the user terminal home network, but after the information of having obtained WAG, immediately the information of WAG is sent to the PDG in the user terminal home network.
Fig. 3 takes place to make PDG obtain the flow chart of first kind of execution mode of WAG information when roaming and PDG are positioned at home network when user terminal in the present invention.Referring to Fig. 3, in the intercommunication of WLAN and 3GPP network, when user terminal roaming and PDG take place was arranged in the home network of user terminal, the present invention can specifically may further comprise the steps by the process that the existing message in the policy deployment process makes PDG obtain the relevant information of WAG:
Step 301～step 303 is all identical with all descriptions of step 101～step 103.
Step 304: the aaa server in the user terminal home network is sent to the aaa server of acting on behalf of in the user terminal access network with the policy download request.
Step 305: this acts on behalf of the information that aaa server obtains the WAG in the user terminal access network, and promptly current is the information of the WAG of subscriber terminal service.
Here, the present invention can be in advance the information of all WAG in this aaa server place network of configuration in aaa server or in private database, such as, the title of WAG, and/or the address of WAG, and/or the information of the PLMN at WAG place (comprising Mobile Country Code MCC and Mobile Network Code etc.) etc.Like this, in this step, the user terminal number that carries in the aaa server basis policy deployment request that receives in the user terminal access network finds the information of corresponding WAG in self or in the private database, promptly having obtained current is the information of the WAG of subscriber terminal service.
Step 306: the aaa server of acting on behalf of in the user terminal access network is sent to WAG according to the information of the WAG that is obtained with the policy download request.
Step 307: the WAG in the user terminal access network carries out policy deployment, then policy download is replied the aaa server of acting on behalf of that is sent in the user terminal access network.
Here, in order to ensure acting on behalf of the various information that aaa server can obtain WAG, the WAG in the user terminal access network can also be further be carried at policy download with self information and be sent in replying and acts on behalf of aaa server.
Step 308: the aaa server of acting on behalf of in the user terminal access network is carried at policy download with the information of the WAG in the user terminal access network and is sent to aaa server in the user terminal home network in replying.
Step 309: the aaa server in the user terminal home network obtains the information of WAG from the policy download that receives is replied, and the information of the WAG that obtained is carried at policy deployment is sent to PDG in the user terminal home network in replying.
Fig. 4 takes place to make PDG obtain the flow chart of second kind of execution mode of WAG information when roaming and PDG are positioned at home network when user terminal in the present invention.Referring to Fig. 4, in the intercommunication of WLAN and 3GPP network, when user terminal roaming and PDG take place was arranged in the home network of user terminal, the present invention can also specifically may further comprise the steps by the process that the existing message in the policy deployment process makes PDG obtain the relevant information of WAG:
Step 401～step 403 is all identical with all descriptions of step 101～step 103.
Step 404: after the aaa server in the user terminal home network received the policy deployment request of carrying WAG information request parameter, obtaining current was the information of the WAG of subscriber terminal service.
Here, the present invention can be in advance the information of all WAG in aaa server or in one or more other networks (just non-aaa server place network) that this aaa server of configuration is managed in private database, such as, the title of WAG, and/or the address of WAG, and/or the information of the PLMN at WAG place (comprising Mobile Country Code MCC and Mobile Network Code etc.) etc.Like this, in this step, the user terminal roaming number that carries in the aaa server basis policy deployment request that receives in the user terminal home network finds the information of corresponding WAG in self or in the private database, promptly having obtained current is the information of the WAG of subscriber terminal service.
Step 405 is all identical with all descriptions of step 107.
Referring to Fig. 3 and Fig. 4, if the aaa server in the user terminal home network has stronger disposal ability, can from the database of self or a special use, obtain the information of WAG in other network, so, in order to return the information of WAG more in time to PDG, obtain in the process of WAG information at the PDG that makes shown in Figure 4, aaa server in the user terminal home network can not carried out in the process shown in Figure 3 by the process that aaa server obtains WAG information of acting on behalf of in the user terminal access network, but after the deployment request that the PDG in receiving the user terminal home network sends, immediately the information of WAG is sent to the PDG in the user terminal home network.
In addition, according to process shown in Figure 4, policy deployment is being replied the PDG that is sent in the user terminal home network, after making this PDG obtain the information of WAG, aaa server in the user terminal home network can continue to carry out the policy download request is sent to the process of acting on behalf of aaa server in the user terminal access network, this is acted on behalf of aaa server the policy download request is sent to WAG in the user terminal access network, be current for the WAG of subscriber terminal service, after WAG carries out policy deployment, policy download is replied the aaa server of acting on behalf of that is sent in the user terminal access network, and this is acted on behalf of aaa server and policy download is replied the aaa server that is sent in the user terminal home network again.
Fig. 5 takes place to make PDG obtain the flow chart of first kind of execution mode of WAG information when roaming and PDG are positioned at accesses network when user terminal in the present invention.Referring to Fig. 5, in the intercommunication of WLAN and 3GPP network, when user terminal roaming and PDG take place was arranged in the accesses network of user terminal, the present invention can specifically may further comprise the steps by the process that the existing message in the policy deployment process makes PDG obtain the relevant information of WAG:
Step 501: user terminal is set up the tunnel PDG that asks to be sent in the user terminal access network by WLAN.
Step 502: after the PDG in the user terminal access network receives the tunnel request of setting up, authentication request is sent to aaa server in the user terminal home network by the aaa server of acting on behalf of in the user terminal access network.
Here, after aaa server in the user terminal home network receives authentication request, obtain the information of user terminal by attaching position register/home subscriber server, according to the user terminal information that is obtained to after the subscriber terminal authority success, by the aaa server of acting on behalf of in the user terminal access network authentication success message is sent to PDG in the user terminal access network.
Step 503: the PDG in the user terminal access network is after receiving the authentication success message, and structure carries the policy deployment request of WAG information request parameter, and the policy deployment request of being constructed is sent to the aaa server of acting on behalf of in the user terminal access network.
Here, the PDG in the user terminal access network carries WAG information request parameter in the policy deployment request, is in order to notify corresponding aaa server to return the information of WAG by this WAG information request parameter.
Step 504: after the acting on behalf of aaa server and receive the policy deployment request of carrying WAG information request parameter in the user terminal access network, this policy deployment request of carrying WAG information request parameter is sent to aaa server in the user terminal home network.
Step 505: after the aaa server in the user terminal home network receives the policy deployment request of carrying WAG information request parameter, the policy download request is sent to the aaa server of acting on behalf of in the user terminal access network.
Step 506: the aaa server of acting on behalf of in the user terminal access network obtains current information for the WAG in the user terminal access network of subscriber terminal service.
Here, the present invention can be in advance the information of all WAG in this aaa server place network of configuration in aaa server or in private database, such as, the title of WAG, and/or the address of WAG, and/or the information of the PLMN at WAG place (comprising Mobile Country Code MCC and Mobile Network Code etc.) etc.Like this, in this step, the aaa server of acting on behalf of in the user terminal access network finds the information of WAG corresponding in this accesses network according to the user terminal number that carries in the policy deployment request that receives in self or in the private database, promptly obtained the information of current WAG for subscriber terminal service.
Step 507: the aaa server of acting on behalf of in the user terminal access network is sent to WAG according to the information of the WAG that is obtained with the policy download request.
After step 508:WAG received the policy download request, the implementation strategy deployment was replied policy download the aaa server of acting on behalf of that is sent in the user terminal access network then.
Here, WAG can be further carries the various information of self in replying sending to the policy download of acting on behalf of aaa server, such as the title of WAG, and/or the address of WAG, and/or the information of the PLMN at WAG place (comprising Mobile Country Code MCC and Mobile Network Code etc.) etc.
Step 509: the aaa server of acting on behalf of in the user terminal access network is replied policy download the aaa server that is sent in the user terminal home network.
Here, act on behalf of the information of the WAG that aaa server can be carried in the step 506 to be obtained in policy download is replied.In addition,, carry the information of WAG during policy download is replied, then in this step, act on behalf of aaa server can also carry the WAG that the policy download of returning from WAG obtains replying in policy download is replied information if in step 508.
Step 510: the aaa server in the user terminal home network receives after policy download replys, and policy deployment is replied the aaa server of acting on behalf of that is sent in the user terminal access network.
Step 511: the aaa server of acting on behalf of in the user terminal access network receives after policy deployment replys, and the information of WAG is carried at policy deployment is sent to PDG in the user terminal access network in replying.
Fig. 6 takes place to make PDG obtain the flow chart of second kind of execution mode of WAG information when roaming and PDG are positioned at accesses network when user terminal in the present invention.Referring to Fig. 6, in the intercommunication of WLAN and 3GPP network, when user terminal roaming and PDG take place was arranged in the accesses network of user terminal, the present invention can also specifically may further comprise the steps by the process that the existing message in the policy deployment process makes PDG obtain the relevant information of WAG:
Step 601～step 603 is all identical with all descriptions of step 501～step 503.
Step 604～step 606 is all identical with all descriptions of step 506～step 508.
Step 607: the aaa server of acting on behalf of in the user terminal access network is carried at policy deployment with the information of WAG and is sent to PDG in the user terminal access network in replying.
By above-mentioned Fig. 5 and process shown in Figure 6 as can be seen, in process shown in Figure 5, the aaa server of acting on behalf of in the user terminal access network is that the corresponding Indication message that the aaa server in receiving the user terminal home network is sent is after policy download request or policy deployment are replied, be that policy download request or policy deployment are replied correspondingly, thereby can guarantee the legitimacy and the controllability of message interaction process to WAG or PDG transmission Indication message.And in the process shown in Figure 6, in order to make PDG more in time obtain the relevant information of WAG apace, in the user terminal access network act on behalf of aaa server not with the user terminal home network in aaa server carry out any alternately, just the information with WAG is sent to PDG.
Fig. 7 be in the present invention when PDG is arranged in the user terminal home network the existing message by licensing process make PDG obtain the flow chart of WAG information.Referring to Fig. 7, no matter whether user terminal is roamed, and when PDG was arranged in the user terminal home network, the present invention may further comprise the steps by the detailed process that the existing message in the licensing process makes PDG obtain WAG information:
Step 701: user terminal is set up the tunnel PDG that asks to be sent in the user terminal home network by WLAN.
Step 702: after the PDG in the user terminal home network receives the tunnel request of setting up, carry out the authentication information acquisition process with aaa server in the user terminal home network.
Here, the aaa server in the user terminal home network obtains the authentication information of user terminal by attaching position register/home subscriber server, and, according to the user end certification information of being obtained user terminal is being authenticated.
Step 703: behind authentication success, PDG in user terminal home network structure carries the authorization requests of WAG information request parameter, and the authorization requests of being constructed is sent to aaa server in the user terminal home network.
Here, the PDG in the user terminal home network carries WAG information request parameter in authorization requests, is in order to return the relevant information of WAG by this WAG information request parameter notice aaa server.When concrete realization, also can not carry WAG information request parameter in this authorization requests.
Step 704: the aaa server in the user terminal home network obtains the information of current WAG for subscriber terminal service, and the information of the WAG that obtained is carried at the PDG that is sent in the authorization response in the user terminal home network.
Here, when user terminal was roamed, then obtaining current in the database of the aaa server special use from self or in the present networks in the user terminal home network was the information of the WAG of subscriber terminal service.When roaming takes place in user terminal, if the aaa server side in the user terminal home network then, such as in the aaa server in the user terminal home network self or be provided with the information of the WAG of outer net in the database of a special use, then in this step, the aaa server in the user terminal home network remain from self or the database of a special use in the present networks in obtain the information of current WAG for subscriber terminal service; The information of the WAG of outer net if only being provided with the information of WAG in the Home Network, the aaa server side in the user terminal home network is not set, then in this step, the aaa server in the user terminal home network is acted on behalf of the information that aaa server obtains current WAG for subscriber terminal service from the user terminal access network.
Fig. 8 be in the present invention when PDG is arranged in the user terminal access network the existing message by licensing process make PDG obtain the flow chart of WAG information.Referring to Fig. 8, when user terminal roaming and PDG take place was arranged in the user terminal access network, the present invention may further comprise the steps by the detailed process that the existing message in the licensing process makes PDG obtain WAG information:
Step 801: user terminal is set up the tunnel PDG that asks to be sent in the user terminal access network by WLAN.
Step 802: after the PDG in the user terminal access network receives the tunnel request of setting up, carry out the authentication information acquisition process with aaa server in the user terminal home network.
Here, the aaa server in the user terminal home network obtains the authentication information of user terminal by attaching position register/home subscriber server, and, according to the user end certification information of being obtained user terminal is being authenticated.
Step 803: behind authentication success, PDG in user terminal access network structure carries the authorization requests of WAG information request parameter, and the authorization requests of being constructed is sent to the aaa server of acting on behalf of in the user terminal access network.
Step 804: the aaa server of acting on behalf of in the user terminal access network is sent to aaa server in the user terminal home network with the authorization requests that receives.
Step 805: the aaa server in the user terminal home network is sent to the aaa server of acting on behalf of in the user terminal access network with authorization response.
Step 805: act on behalf of the information that aaa server obtains current WAG for subscriber terminal service in the user terminal access network, and the information of the WAG that obtained is carried at the PDG that is sent in the authorization response in the user terminal access network.
In the present invention, when making PDG obtain the information of WAG by existing message authentication authorization and accounting request in the verification process and authentication response, the principle of specific implementation process and above-mentioned Fig. 7 and process shown in Figure 8 is identical.
By said process, related PDG has then obtained the information of current WAG for subscriber terminal service in the user terminal communication process.Like this, in subsequent process, this PDG then can be sent to the information of the WAG that obtained the network entity of being responsible for processes user data, make the network entity of being responsible for processes user data obtain the complete business information of user terminal in a communication service, thereby bring great convenience for follow-up data service processing procedure.The information of the WAG that obtained can be sent to off-line accounting system such as, this PDG, like this, off-line accounting system then can be discerned the charge information that WAG sends, thereby realizes the accurate billing to user terminal.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1. a method of obtaining accessing gateway information of wireless LAN is characterized in that, this method comprises:
The request that A, packet data gateway will obtain accessing gateway information of wireless LAN is sent to authentication and authorization charging server;
B, authentication and authorization charging server are after receiving the request of obtaining accessing gateway information of wireless LAN, obtain the information of current WLAN (wireless local area network) IAD for subscriber terminal service, and the information of the WLAN (wireless local area network) IAD that obtained is sent to packet data gateway.
2. method according to claim 1 is characterized in that, when described packet data gateway was arranged in the home network of user terminal, described authentication and authorization charging server was the authentication and authorization charging server in the user terminal home network.
3. method according to claim 2, it is characterized in that, when described user terminal is roamed, in step B, the described step of obtaining the information of current WLAN (wireless local area network) IAD for subscriber terminal service comprises: the information of obtaining current WLAN (wireless local area network) IAD for subscriber terminal service in the database of the special use from self or Home Network of the authentication and authorization charging server in the described user terminal home network.
4. method according to claim 2, it is characterized in that this method further comprises: the information of WLAN (wireless local area network) IAD in other network of configuration in the authentication and authorization charging server in described user terminal home network or in the private database of Home Network;
When roaming takes place in described user terminal, in step B, the described step of obtaining the information of current WLAN (wireless local area network) IAD for subscriber terminal service comprises: the information of obtaining current WLAN (wireless local area network) IAD for subscriber terminal service in the database of the special use from self or Home Network of the authentication and authorization charging server in the described user terminal home network.
5. method according to claim 2, it is characterized in that, when roaming takes place in described user terminal, in step B, the described step of obtaining the information of current WLAN (wireless local area network) IAD for subscriber terminal service comprises: the request that the authentication and authorization charging server in the described user terminal home network will obtain accessing gateway information of wireless LAN is sent to the proxy authentication mandate accounting server in the user terminal access network; Proxy authentication mandate accounting server in this user terminal access network obtains the information of current WLAN (wireless local area network) IAD for subscriber terminal service from self or in private database of Home Network, and the information of the WLAN (wireless local area network) IAD that obtained is sent to authentication and authorization charging server in the user terminal home network; Authentication and authorization charging server in the user terminal home network obtains the information of WLAN (wireless local area network) IAD by reception.
6. method according to claim 1 is characterized in that, when described packet data gateway was arranged in the accesses network of user terminal, described authentication and authorization charging server was the proxy authentication mandate accounting server in the user terminal access network.
7. method according to claim 6, it is characterized in that, in step B, proxy authentication mandate accounting server in the user terminal access network receives after the request of obtaining accessing gateway information of wireless LAN, and before obtaining accessing gateway information of wireless LAN, further comprise: the request that the proxy authentication mandate accounting server in the user terminal access network will obtain accessing gateway information of wireless LAN is sent to the authentication and authorization charging server in the user terminal home network, and the authentication and authorization charging server in the user terminal home network is sent to proxy authentication mandate accounting server in the user terminal access network with response message.
8. according to any described method in the claim 2 to 5, it is characterized in that the authentication and authorization charging server in described packet data gateway and the described user terminal home network carries out information interactive process by self-defining message.
9. according to claim 6 or 7 described methods, it is characterized in that the proxy authentication mandate accounting server in described packet data gateway and the described user terminal access network carries out information interactive process by self-defining message.
10. according to any described method in the claim 2 to 5, it is characterized in that the authentication and authorization charging server in described packet data gateway and the described user terminal home network carries out information interactive process by existing message.
11., it is characterized in that the proxy authentication mandate accounting server in described packet data gateway and the described user terminal access network carries out information interactive process by existing message according to claim 6 or 7 described methods.
12. method according to claim 10 is characterized in that, described request of obtaining accessing gateway information of wireless LAN is an authentication request;
In step B, the authentication and authorization charging server in the described user terminal home network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the authentication and authorization charging server in the described user terminal home network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authentication response.
13. method according to claim 11 is characterized in that, described request of obtaining accessing gateway information of wireless LAN is an authentication request;
In step B, the proxy authentication mandate accounting server in the described user terminal access network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the proxy authentication mandate accounting server in the described user terminal access network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authentication response.
14. method according to claim 10 is characterized in that, described request of obtaining accessing gateway information of wireless LAN is an authorization requests;
In step B, the authentication and authorization charging server in the described user terminal home network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the authentication and authorization charging server in the described user terminal home network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authorization response.
15. method according to claim 11 is characterized in that, described request of obtaining accessing gateway information of wireless LAN is an authorization requests;
In step B, the proxy authentication mandate accounting server in the described user terminal access network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the proxy authentication mandate accounting server in the described user terminal access network is carried at the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in the authorization response.
16. method according to claim 10 is characterized in that, described request of obtaining accessing gateway information of wireless LAN is the policy deployment request of carrying the accessing gateway information of wireless LAN required parameter;
In step B, the authentication and authorization charging server in the described user terminal home network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the authentication and authorization charging server in the described user terminal home network is carried at policy deployment with the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in replying.
17. method according to claim 11 is characterized in that, described request of obtaining accessing gateway information of wireless LAN is the policy deployment request of carrying the accessing gateway information of wireless LAN required parameter;
In step B, the proxy authentication mandate accounting server in the described user terminal access network comprises the step that the information of WLAN (wireless local area network) IAD is sent to packet data gateway: the proxy authentication mandate accounting server in the described user terminal access network is carried at policy deployment with the information of WLAN (wireless local area network) IAD and is sent to packet data gateway in replying.
18. method according to claim 1, it is characterized in that, the information of described WLAN (wireless local area network) IAD comprises: the title of WLAN (wireless local area network) IAD, and/or, the address of WLAN (wireless local area network) IAD, and/or, the information of the public land mobile radio communication at WLAN (wireless local area network) IAD place.
19. method according to claim 1 is characterized in that, further comprises after step B: described packet data gateway is sent to the network entity of being responsible for the user data processing with the information of received WLAN (wireless local area network) IAD.
20. method according to claim 19 is characterized in that, the network entity that described responsible user data is handled is an off-line accounting system.
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| CN2005101378210A CN1992665B (en) | 2005-12-31 | 2005-12-31 | Method for acquiring accessing gateway information of wireless LAN |
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| CN1612539A (en) * | 2003-10-29 | 2005-05-04 | 华为技术有限公司 | Method for establishing service connection in wireless LAN |
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