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Method for confirming service call control function selection starting time

A technology for control functions and service calls, applied in user identity/authority verification, electrical components, connection management, etc., and can solve problems such as increasing the load of the Cx interface

Inactive Publication Date: 2009-07-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the user is the object to be accessed, if the user's registration status saved by the HSS is a logout status, the HSS will directly send the user's S-CSCF capability information to the I-CSCF without performing other effective prevention options. -CSCF measures, which may also cause the I-CSCF to initiate an invalid S-CSCF selection process, increase the load of the Cx interface, and at the same time put forward high requirements for the processing capacity of the I-CSCF

Method used

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  • Method for confirming service call control function selection starting time
  • Method for confirming service call control function selection starting time
  • Method for confirming service call control function selection starting time

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0044] In the present invention, the selection of the S-CSCF occurs in the following situations: 1. When the user registers, if the previously allocated S-CSCF is currently unavailable, the HSS must send the user's S-CSCF capability information to the I-CSCF , for the I-CSCF to choose; 2. When the user registers for the first time, the HSS determines whether the S-CSCF has been allocated when the unregistered user is the access object. If it has been allocated, the HSS needs to determine whether to initiate For the selection of S-CSCF, if necessary, return the capability information required by the I-CSCF to select the S-CSCF and the allocated S-CSCF in the return message of the query request, and save the selected S-CSCF, otherwise ,...

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Abstract

Two kinds of method on realizing selection of service call controlling function entity, and one of them is HSS judging some public user identifier is not registered but provided service by S-CSCF, then sending the S-CSCF capability information of the user to the I-CSCF when the set condition of the selection S-CSCF is satisfied, otherwise sending the S-CSCF name providing service to the user to the I-CSCF without I-CSCF to select again. Another is performing the modification directly in local database by operation maintenance after HSS judging some S-CSCF is satisfied the set condition of the selection S-CSCF. In this way, the S-CSCF reselection course by the I-CSCF is not required. HSS returns the relative S-CSCF capability information only when the S-CSCF reselection is required by I-CSCF definitude. Applying the invention, the time of initiating S-CSCF selection is reduced, the Cx interface load is decreased, and the invalid S-CSCF selection initiated by the I-CSCF is avoided.

Description

technical field [0001] The present invention relates to a technique for initiating Serving Call Control Function (S-CSCF) selection in Internet Protocol (IP) Multimedia Subsystem (IMS) domain, and in particular to a method for determining when to initiate S-CSCF selection. Background technique [0002] With the development of broadband network, mobile communication is not limited to traditional voice communication, and various media services such as audio, video, picture and text will be gradually developed. A variety of media services can meet various needs of users by combining with data services such as presence, short message, webpage (WEB) browsing, location information, push service (PUSH) and file sharing. [0003] Driven by a variety of data service applications, standard organizations such as 3GPP and 3GPP2 have successively launched the IMS architecture, aiming to use a standardized open structure in the mobile network to realize a variety of multimedia service app...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L29/06H04W76/02
CPCH04W76/02H04W76/10
Inventor 朱东铭武亚娟
Owner HUAWEI TECH CO LTD
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