CN101765087B

CN101765087B - Method for user position update in the interwork of WiMAX access network and 3G core network

Info

Publication number: CN101765087B
Application number: CN200810232168.XA
Authority: CN
Inventors: 彭勇明
Original assignee: Xi'an Xinyou Communication Equipment Co Ltd
Current assignee: Xi'an Xinyou Communication Equipment Co Ltd
Priority date: 2008-11-10
Filing date: 2008-11-10
Publication date: 2013-03-13
Anticipated expiration: 2028-11-10
Also published as: CN101765087A

Abstract

The present invention relates to a method for user position update in the interwork of a WiMAX access network and a 3G core network. The present invention is characterized in that the WiMAX access network how to deploy and design is designed in the access process of a WIMAX terminal to touch a position updating process with an HSS (Home Subscriber Server); and by the position updating process, a WiMAX user completes the position updating process successfully by using the HSS. Compared with the prior art, the present invention has the advantages of that the position updating process when the WiMAX access network and the 3G core network interwork is realized; only the design and the development of a software module IWM (Interworking Module ) are related; the existing hardware platform, 3G core network and WiMAX network reference model do not need to make any modification; and the IWM module function is independent, so the IWM module can be conveniently deployed in ASN and CSN net units of the WiMAX wireless access network.

Description

Method for user position update when a kind of WiMAX Access Network and 3G core net interconnecting

Technical field

Method for user position update when the present invention relates to a kind of WiMAX Access Network and 3G core net interconnecting, be used at WiMAX terminal access procedure, how to dispose, design the access network of WiMAX, trigger the position update flow with HSS (HomeSubscriber Server), by this flow process, WiMAX user is successfully completed user's position update flow by HSS.

Background technology

In recent years, WiMAX (Worldwide Interoperability for Microwave Access) technology constantly heats up, up to now, the whole world has been disposed and has been surpassed a hundreds of WiMAX try net, comprehensively embodied in recent years market to the thriving demand of broadband, RFDC, reflected that also Telecom Carriers and equipment vendor pursue high efficiency, the trend of solution cheaply.WiMAX compares with existing other wireless communication technology, has the higher availability of frequency spectrum and economy, in the market competition of fierceness, is expected to become the new lover in market.

But, to become the road of wireless access market mainstream technology be tortuous to WiMAX.Topmost reason is that existing 2G, 3G technology are very ripe, in occupation of most markets of radio communication.Therefore, at the initial stage of WiMAX development, WiMAX is as useful the replenishing of 3G technology, for 3G subscription provides than the existing 3G technology RFDC of wide bandwidth more, with this cutting point as market, progressively enlarges the coverage of WiMAX.For reaching this purpose, the WiMAX Access Network will utilize existing ripe 3G core net, for WiMAX provides authentication, authentication, billing of services, make WiMAX user access IP backbone by the 3G core net.

In the reference model of WiMAX Forum to the WiMAX Radio Access Network, SS (Subscriber Station)/MS (Mobile Station) is user terminal, comprise fixing and portable terminal, ASN (Access Service Network) is access service network, and CSN (Connectivity Service Network) is connectivity serving network.The user is mutual by ASN and CSN, finishes authentication, authentication and billing function.By this reference model, WiMAX user can access Internet, but can not access the 3G core network.

For with the 3G network intercommunication, in the reference model of the WiMAX Radio Access Network of WiMAX Forum definition, compare with above-mentioned technology, CSN and 3G AAA (Authentication have been increased, Authorization, andAccounting) the Wa interface of Server, the Wn interface of CSN and WAG (Wireless Access Gateway).3G AAA Server is authentication, authentication, the accounting server of 3G core net, and WAG is wireless broadband access gateway.By the Wa interface, finish authentication, authentication and charging to the access WiMAX network user, by the Wn interface, the user is from WAG accessing group data gateway, and then from PDG (Packet DATA Gateway) access Internet.But problem is: the WiMAX access network is to 3G core network report user's positional information, to such an extent as to because the 3G core net does not have user's positional information, when the user is in idle condition, come the paging request to this user of automatic network will failure.

Summary of the invention

The technical problem that solves

For fear of the deficiencies in the prior art part, method for user position update when the present invention proposes a kind of WiMAX Access Network and 3G core net interconnecting, designed the implementation method of IWM Client and IWM Server at connectivity serving network CSN and access service network ASN, the method has been finished the realization that the position of WiMAX access network and the intercommunication of 3G core network is upgraded.

Technical scheme

Basic thought of the present invention is: in ASN, designed IWM client IWM Client and in CSN, designed IWM service end IWM Server, IWM Client and IWM Server can:

1) in access service network ASN, trigger user position update message, receive from the position of the IWM Server among the CSN and upgrade response message and insert subscriber data message;

2) in CSN, finish the intercommunication of location update message and the location update message that the attaching position register HSS in the 3G core network defines of ASN transmission, and response message is upgraded in the position of HSS change with the insertion subscriber data message, and then be forwarded to the IWM Client of ASN;

3) the IWM Server among the CSN has route forwarding function, that is: when a plurality of ASN accessed the 3G core net by a CSN simultaneously, CSN can be transmitted to correct target ASN with the response message from HSS exactly;

4) the IWM Server among the CSN is as SGSN (the Serving GPRS Support Node) equipment access of 3G core network;

5) message between IWM Client and the IWM Server is newly-increased and self-defining.

Technical characterictic of the present invention is that in the WiMAX access network step of user position update is as follows when receiving the user position update request of IWM Client:

Step 1:IWM Server receives the user position update request of IWM Client, is MAP_Update_Gprs_location_Req message corresponding to 3GPP with message conversion, sends to home subscriber server, and it is that holding fix upgrades response that User Status is set;

After step 2:IWM Server received that response is upgraded in the position of home subscriber server, response message was upgraded in the position that is converted to intermodule, sends to IWM Client, User Status is set is inserted into user data requests for waiting;

Step 3:IWM Server receives the insertion user data requests of home subscriber server IWM Server, is converted to the insertion user data requests message of intermodule, sends to IWM Client, User Status is set is inserted into the user data response request for waiting;

Step 4:IWM Server receives the insertion user data response of IWM Client, is MAP_Insert_Subscriber_Data_Rsp message corresponding to 3GPP with message conversion, sends to home subscriber server, and the identifying user position is updated successfully;

The step of user position update is as follows when ASN finishes the authorizing procedure that network initiates for the user of request access:

After the user that step 1:ASN accesses for request finished the authorizing procedure of network initiation, IWM Client sent the user position update request to IWMServer, and it is that holding fix upgrades response that User Status is set;

Step 2:IWM Client receives the position renewal response of IWM Server, this User Status of sign is set is inserted into user data requests for waiting;

Step 3: receive the insertion user data requests of IWM Server, the user data of receiving is stored;

Step 4:IWM Client sends to IWM Server and inserts the user data response message, the success of mark user position update.

Beneficial effect

Method for user position update when the WiMAX Access Network that the present invention proposes and 3G core net interconnecting, with respect to the prior art major advantage:

The flow process that the position is upgraded when 1) having realized WiMAX access network and the intercommunication of 3G core network;

2) only relate to the design and development of software module IWM, the existing hardware platform needn't be made any modification;

3) existing 3G core network needn't be made any modification;

4) existing WiMAX network reference model needn't be made any modification;

5) the IWM functions of modules is independent, can be deployed to easily among the ASN and CSN network element of WiMAX Radio Access Network.

Description of drawings

Fig. 1: WiMAX, the 3G core net interconnecting network reference model of the present invention's design

Fig. 2: method for user position update flow chart when ASN finishes the authorizing procedure that network initiates for the user of request access

Fig. 3: method for user position update flow chart when IWM Server receives the user position update request of IWM Client

Fig. 4: embodiment of the invention schematic diagram

Embodiment

Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:

The realization condition of present embodiment:

(1) the WiMAX Radio Access Network is built by existing 3G operator;

(2) 3G operator is IMSI (International MobileSubscriber Identity) number of burning user on the subscriber card that accesses terminal of WiMAX, and the WiMAX terminal is supported AKA (the Authentication and Key Agreement) authentication mode of EAP (Extensible AuthenticationProtocol);

(3) increase all WiMAX users' CAMEL-Subscription-Information at the HSS of 3G core net, finish these users' networking, the work of opening an account;

(4) in the ASN of WiMAX access network, increase IWM Client software module in the software systems, and finish functional test;

(5) in the CSN of WiMAX access network, increase IWM Server software module in the software systems, and finish functional test;

(6) finish the test of WiMAX wireless network, finish the test of WiMAX Radio Access Network and 3G core net interconnecting;

(7) at the covering area of WiMAX wireless network, open the WiMAX terminal that has networked, by the signaling instrument, follow the tracks of between ASN and the CSN, Signalling exchange between CSN and the HSS, whether the latest position information of checking this user at HSS user's handling desk exists, and whether the CAMEL-Subscription-Information that the maintenance console in ASN is observed this user obtains.

Accompanying drawing 4 be in above-mentioned condition in when, a user occuring entering the WiMAX Radio Access Network when, IWM Server cooperates mutually among the IWM Client among the ASN and the CSN, finishes the concrete steps that this user's position is upgraded:

Step 1: a user enters the WiMAX Radio Access Network, and access service network ASN begins to process this user's access request;

Step 2: after access service network was finished the authorizing procedure that this user's network initiates, its IWM Client sent the user position update request to IWM Server, and it is that holding fix upgrades response that User Status is set;

Step 3: the IWM Server of connectivity serving network receives the user position update request of IWM Client, be MAP_Update_Gprs_location_Req message corresponding to 3GPP with message conversion, send to home subscriber server, it is that holding fix upgrades response that User Status is set;

Step 4: home subscriber server sends the position to IWM Server and upgrades response, and after IWM Server received this message, response message was upgraded in the position that is converted to intermodule, sends to IWM Client, User Status is set is inserted into user data requests for waiting;

Step 5:IWM Client receives the position renewal response of IWM Server, this User Status of sign is set is inserted into user data requests for waiting;

Step 6: home subscriber server sends to IWM Server and inserts user data requests, after IWM Server receives this message, be converted to the insertion user data requests message of intermodule, send to IWM Client, User Status is set is inserted into the user data response request for waiting;

Step 7: receive the insertion user data requests of IWM Server, the user data of receiving is saved in this locality;

Step 8:IWM Client sends to IWM Server and inserts the user data response message, this user position update success of mark;

Step 9:IWM Server receives the insertion user data response of IWM Client, is MAP_Insert_Subscriber_Data_Rsp message corresponding to 3GPP with message conversion, sends to home subscriber server, identifies this user position update success.

Claims

1. the method for user position update when a WiMAX Access Network and 3G core net interconnecting is characterized in that: increase IWM Client software module in the software systems in the ASN of WiMAX access network, and finish functional test; In the CSN of WiMAX access network, increase IWM Server software module in the software systems, and finish functional test; The step of user position update is as follows when the interoperability module server I WM of connectivity serving network CSN Server receives the user position update request of interoperability module client IWM Client of access service network ASN:

Step 3: home subscriber server sends to IWM Server and inserts user data requests, after IWM Server receives this message, be converted to the insertion user data requests message of intermodule, send to IWM Client, User Status is set is inserted into the user data response request for waiting; When receiving, IWM Client the insertion user data requests of IWM Server the user data of receiving is saved in this locality; IWM Client sends to IWM Server and inserts the user data response message, this user position update success of mark;

After the user that step 1:ASN accesses for request finished the authorizing procedure of network initiation, IWM Client sent the user position update request to IWM Server, and it is that holding fix upgrades response that User Status is set;