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Method and device for processing session message in IMS network

A message and network technology, applied in the field of communication, can solve problems such as the inability to complete logical processing correctly

Active Publication Date: 2009-06-17
INVT SPE LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0036] The present invention provides a method and device for processing session messages in an IMS network to solve the problem of whether the wrong new session message is associated with the original session message when the S-CSCF in the existing IMS network is processing the B2BUA call. and lead to the problem that the logical processing cannot be completed correctly

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  • Method and device for processing session message in IMS network
  • Method and device for processing session message in IMS network
  • Method and device for processing session message in IMS network

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Embodiment Construction

[0078] In an IMS network, two key header fields that affect call service logic processing are P-Asserted-Identity header field and Request-URI header field. In the B2BUA mode, if the first session message received by the application server (AS) from the S-CSCF and the second session message generated by the AS have no relationship in business logic, the AS compares the two header fields in the second session message Both are subject to modification. In order to enable the Service-Call Session Control Function (S-CSCF) to correctly detect and process the second session message forwarded by the AS, in the present invention, the AS generates the corresponding Route header field according to whether the preceding and following session messages are logically associated with the service.

[0079] There are two ways to determine whether the previous and subsequent session messages are related in business logic:

[0080] 1. The business logic executed by the AS itself determines whet...

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Abstract

A method for processing SIP requests in an IMS network comprises: an AS in the IMS network receiving a first SIP request forwarded by a S-CSCF entity, generating a second SIP request and deciding whether it is needed to associate the second SIP request with the first SIP request in terms of service logic at the S-CSCF entity, if it is needed to associate two requests, removing the URI of the AS from the Route header of the first SIP request; otherwise, regenerating the Route header of the second SIP request in the originating UA behavior mode and sending the second SIP request to the S-CSCF entity. The present invention also discloses a system for processing SIP requests in an IMS network, comprising an AS and a S-CSCF entity. The present invention also discloses an AS for processing SIP requests in an IMS network and a network entity for service control.

Description

technical field [0001] The invention relates to an IMS network in the communication field, in particular to a method and device for processing session messages in a B2BUA mode in the IMS network. Background technique [0002] In an IMS network, a service-call session control function (S-CSCF) usually does not specifically execute related services, and the logic of related services is placed on an application server (AS). When the S-CSCF receives a session initiation message, it will match the session message according to the initial filtering rules (iFC) contained in the User Profile downloaded by the user when registering. According to the matched rules, the S-CSCF will receive Incoming session messages are forwarded to the relevant AS. During this session, the AS can play different roles. One of the possible modes is that AS acts as the Originate mode, and its mode is as follows Figure 1A As shown, another possible mode is that the AS acts as a B2BUA (Back-to-Back User ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L65/1016H04L29/06217H04L65/1006H04L29/08576H04L29/06197H04L29/08621H04L29/06312H04L67/146H04L65/1063H04L67/14H04L65/1104
Inventor 朱奋勤武亚娟
Owner INVT SPE LLC
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