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Transmission method and device for request message in SIP multimedia system

A multimedia system and request message technology, applied in the transmission system, digital transmission system, electrical components, etc., can solve problems such as no clear implementation plan, achieve the effects of avoiding repeated judgments, simplifying operations, and improving system performance

Inactive Publication Date: 2007-07-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, if the request message received by the AS is a request for media resources by the S-CSCF, there is no specific implementation plan for how to route the request message to the corresponding MRFC

Method used

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  • Transmission method and device for request message in SIP multimedia system
  • Transmission method and device for request message in SIP multimedia system
  • Transmission method and device for request message in SIP multimedia system

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] In the first embodiment of the present invention, the SIP multimedia system is IMS.

[0036]As shown in Fig. 2, in step 210, when the S-CSCF entity of the IMS receives the request message from the AS, it judges whether the request message is a message to visit the S-CSCF entity for the first time. Specifically, when the S-CSCF entity of the IMS receives a request message from the AS, it first checks whether the highest item of the "Route" header field in the request message contains the original dialogue identifier, and if so, it indicates that the S-CSCF entity If the request message has been received before, go to step 220 and perform subsequent processing on the request message according to the prior art. If it does not exist, then determine that the req...

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Abstract

The method can route the request message of AS to the appointed net element. In the invention, the S-CSCF entity decides if the received request message satisfies a preset condition; if yes, then ignores the initial filter rule match, and directly sends the request message to the relevant net element. There are three typical preset conditions, the first one is that the request message contains a preset special ID; the second one is that the user's subscription data contains a preset special ID; the third one is that the request address of the request message contains a special address.

Description

technical field [0001] The invention relates to a SIP-based multimedia communication system, in particular to message routing technology in the SIP multimedia system. Background technique [0002] With the rapid development of communication technology, people's expectations and requirements for communication are getting higher and higher. The characteristics of high bandwidth, multi-service and high quality of the third generation (3rd Generation, referred to as "3G") mobile communication system are very attractive. the consumer market. [0003] In the 3G network architecture, with the continuous maturity of the packet technology, the traditional telecommunication network based on circuit switching is developing towards the broadband telecommunication network based on packet switching, in which the Session Initiation Protocol (Session Initation Protocol, referred to as "SIP") protocol is used as the The call control signaling of the packet telecommunication core network is ...

Claims

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Application Information

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IPC IPC(8): H04L12/58H04L29/06
CPCH04L65/1016H04L29/08648H04L29/06319H04L65/1006H04L65/1096H04L29/06312H04L65/1063H04L65/1066H04L67/16H04L29/06197H04L29/0638H04L29/06217H04L65/1104H04L67/51
Inventor 李辉
Owner HUAWEI TECH CO LTD
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