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Dialogue establishing method and system based on dialogue correlation identifier

A technology for session establishment and association identification, which is applied in the transmission system, electrical components, wireless communication, etc., and can solve the problem that the Replacement process cannot be performed.

Active Publication Date: 2012-02-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the call passes through one or more B2BUA devices (such as Session Border Controllers (SBC, Session Border Controllers)), and the / these B2BUA devices modify the Dialog ID of the call, resulting in the failure of the subsequent Replacement process

Method used

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  • Dialogue establishing method and system based on dialogue correlation identifier
  • Dialogue establishing method and system based on dialogue correlation identifier
  • Dialogue establishing method and system based on dialogue correlation identifier

Examples

Experimental program
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Embodiment Construction

[0088] The basic idea of ​​the present invention is that by setting the dialog associated information identifying the initiated dialog, and inserting the dialog associated information when generating the call request and the request with the Replaces header, in this way, B2BUA receives the call request carrying the dialog associated information , the dialog associated information will not be modified, but directly copied and sent to other network elements; and the call request receiver saves the dialog associated information after receiving the call request carrying the dialog associated information. When one party to a session initiates a request with a Replaces header, the other party to the session can directly determine the replacement dialog based on the session-associated information after receiving the request with a Replaces header that carries the session-associated information, so as to realize the related conference business Establish. When the B2BUA or the call rec...

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PUM

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Abstract

The invention discloses a dialogue establishing method based on a dialogue correlation identifier, which comprises setting dialogue correlation information used for identifying an initiated dialogue. The method also comprises the following steps: inserting the dialogue correlation information in a calling request initiated by a calling request initiator; generating a calling request sent to a calling request receiver after an application server (AS) executing back-to-back user agent (B2BUA) action receives the calling request, wherein the calling request sent to the calling request receiver carries the dialogue correlation information; establishing the dialogue after the calling request receiver receives the calling request sent by the B2BUA, and saving the dialogue correlation information. The invention also discloses a dialogue establishing system based on the dialogue correlation identifier. The invention realizes the rapidness of dialogue confirmation, and simultaneously is compatible with the existing dialogue establishing process, and the generality of the technical scheme is ensured.

Description

technical field [0001] The invention relates to the establishment technology of conference services, in particular to a method and system for establishing a session based on a dialog association identifier. Background technique [0002] The 3rd Generation Partnership Project (3GPP, 3rd Generation Partner Project) defines that when an application server (AS, Application Server) processes a Session Initiation Protocol (SIP, Session Initiation Protocol) message, the behavior mode can be proxy (Proxy), routing back-to-back User Agent (Routing B2BUA, Routing Back to Back User Agent) or Initial Back to Back User Agent (Initiating B2BUA). When the AS adopts the Routing B2BUA or Initiating B2BUA behavior mode, the session identifier (Dialog ID) on both sides of the AS is modified by the AS, and the Dialog ID on both sides of the AS will be different. [0003] figure 1 Create a flowchart for the session when there is a B2BUA in the call request path, such as figure 1 As shown, for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02H04L29/06
CPCH04W76/11
Inventor 高扬
Owner ZTE CORP
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