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Method for carrying out authentication for terminal user identification module in IP multimedia subsystem

A technology for a multimedia subsystem and a terminal user, which is applied in the field of authentication by a terminal user identification module, can solve the problems of complicated card replacement, increased difficulty for operators to promote IM services, and complicated card replacement operations, and achieves the effect of reducing the difficulty of promotion.

Active Publication Date: 2006-04-05
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

However, if the user wants to change the card, he must go to a special business point authorized by the operator to replace it. In order to ensure the continuity of the business, the IMSI in the new card must be related to the IMSI in the old card. belong to the same HLR, therefore, the actual operation of changing the card must be very cumbersome
[0027] To sum up, if you want to use the IM service at present, the user's terminal user identification module must contain an ISIM module. Obviously, this requires relatively high requirements for the terminal user identification module, and often requires the user to replace his own SIM card or USIM card to achieve
However, changing the card is very cumbersome in actual operation, which will inevitably greatly reduce the attractiveness of IM services and increase the difficulty for operators to promote IM services

Method used

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  • Method for carrying out authentication for terminal user identification module in IP multimedia subsystem
  • Method for carrying out authentication for terminal user identification module in IP multimedia subsystem
  • Method for carrying out authentication for terminal user identification module in IP multimedia subsystem

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Embodiment Construction

[0063] because image 3 The shown processing process needs to verify the AUTN. For the SIM module and the USIM module, verifying the AUTN will bring frequent resynchronization problems. Therefore, the core idea of ​​the present invention is: when the S_CSCF needs to authenticate the UE, it uses The three-tuple authentication vector is used for authentication to avoid the verification of the SQN. In this way, the authentication vector sent by the HSS to the S_CSCF should also be a triplet.

[0064] Taking the SIM and the USIM as the terminal user identification module as examples, the solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0065] Figure 4 Shown is the authentication process of SIM card accessing the IM domain, which corresponds to the following steps:

[0066] Step 401, when the UE needs to use the IMS service, it sends a registration request to the S_CSCF through the P_CSCF and the I_CSCF in seq...

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Abstract

The invention discloses a method to identify terminal user identification module in IP multimedia subsystem, which comprises: after receiving register request from UE, IMS determines the UE's triple identification vector composed of at least RAND and SRES, keeps SRES and sends RAND to UE; UE transmits RAND to its identification module for calculating and returning RES to IMS; IMS decides whether SRES and RES same; if yes, passes the identification; or else, fails. This invention realizes identification without ISIM, decreases spread difficulty for IM business, and changes a little to existing network.

Description

technical field [0001] The present invention relates to authentication technology for mobile terminal, more precisely, relates to a method for authenticating terminal user identity module in IP Multimedia Subsystem (IMS). Background technique [0002] With the development of multimedia services, multimedia services for mobile terminals have appeared at present. The IMS system that provides multimedia services for mobile terminals such as figure 1 As shown, the system is initially a sub-domain superimposed on the existing packet domain of the third generation network (3G), and this sub-domain is specially used to support IP multimedia services. When the conditions are ripe, the IMS system can also serve users who access in other ways such as terminal local area network (WLAN). [0003] The IMS system is mainly composed of a call control entity and a media gateway component, and the session initiation protocol (SIP) is mainly used to transmit control signaling between each c...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04L29/06H04W12/06
Inventor 谢红王金城朱东铭顾炯炯
Owner HUAWEI TECH CO LTD
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