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Transmission method and device for request message in SIP multimedia system

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

Inactive Publication Date: 2009-08-05
HUAWEI TECH CO LTD
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  • Claims
  • Application Information

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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] Such as figure 2 As shown, in step 210, when the S-CSCF entity of the IMS receives the request message from the AS, it is judged 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 t...

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Abstract

A method and apparatus for transmitting request messages in a SIP multimedia system. The method includes: an S-CSCF entity forwards a request message according to a routing way of the SIP message after receiving a request message that meets the preset conditions; or performs initial filter criteria matching for the request message if the request message does not meet the preset conditions. In the present invention, the S-CSCF entity judges whether the received request message meets the preset conditions; and, if the received request message meets the preset conditions, the S-CSCF entity ignores the matching of initial filter criteria against the request message and sends the request message to the corresponding NE. Therefore, the S-CSCF entity does not perform initial filter criteria matching for the request message that needs only to be routed, and triggers the AS related services, so that the request message of the AS can be routed to the corresponding NE successfully. This avoids repetitive judgment on the received request message, simplifies the operation, and improves the system performance.

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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Patent Type & Authority Patents(China)
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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