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Method and system for implementing resource release

A technology for resource release and session establishment request, applied in the field of communication, can solve problems such as session update request collision, and achieve the effect of avoiding meaningless forwarding and collision

Inactive Publication Date: 2010-05-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, since each B2BUA unit will forward and initiate a session update request, the user terminal will receive a large number of meaningless session update requests in the end. If the B2BUA unit sends a new session update request to both sides after receiving the session update request, it will Will cause a collision of session update requests

Method used

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  • Method and system for implementing resource release
  • Method and system for implementing resource release
  • Method and system for implementing resource release

Examples

Experimental program
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Embodiment Construction

[0128] In the current field of communication technology, the implementation of the Session Timers protocol on the B2BUA unit has the problem of multiple meaningless forwarding and collisions of session update request information. The present invention solves the above problem by removing the function of the B2BUA unit to actively initiate a session update request. In addition, during the session establishment process, by changing the B2BUA unit, it can actively initiate a session update request to the calling terminal and the called terminal, so that even when the calling terminal and the called terminal do not support the Session Timers protocol, the The Session Timers protocol can be successfully established.

[0129] During the session establishment process, after receiving the session establishment request message, the B2BUA unit judges whether the session establishment request message contains the Supported header field with the time timer tag, and if so, sends the session...

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Abstract

This method includes: (1) After receiving the conversation building request message (CBR) not including the Supported Head-Domain with Timer-Mark (SHT), the back-to-back user agent unit (BUA) adds SHTinto the request message. (2) All node-devices (ND) negotiate to appoint the renewing node-devices (RN) and decide that except RN, all other node-devices on the conversation path (CP) do not start CBR. (3) After the conversation built, every RN respectively starts the conversation renewing request message (CRR) toward the connecting NDs on its both sides on CP. This scheme solves the problems ofthe meaningless transferring CRR and the messages collision during the conversation procedure. It enables the resource to release even if both calling / called terminals do not support the Session Timers protocol. This invention also discloses simultaneously a system realizing resource release.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and system for realizing resource release. Background technique [0002] In recent years, with the development of mobile communication technology, a single voice communication method can no longer fully meet the needs of users, and new multimedia communication methods are constantly emerging. These multimedia communications are not only simple video and audio communications, but also include instant messaging, co-location browsing, collaborative work, streaming media, etc., especially the integration of new communication methods and traditional voice services, which are more accepted by the public. Among the many session control systems based on Internet and telecommunications network convergence, most of the session control systems use Session Initiation Protocol (SIP) as the session control protocol, and the most representative one is Internet Protocol M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/18H04W76/02H04W76/06
CPCH04W76/06H04W76/30
Inventor 杨伟强
Owner HUAWEI TECH CO LTD
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