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Method and system for realizing anchor of media

An implementation method and anchoring technology, applied in the field of call technology, can solve the problems of signaling consumption and long call establishment time

Inactive Publication Date: 2012-02-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Apparently, in the anchor media method implemented in the call initiation process in the prior art, additional signaling is consumed, resulting in a long call establishment time

Method used

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  • Method and system for realizing anchor of media
  • Method and system for realizing anchor of media
  • Method and system for realizing anchor of media

Examples

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Embodiment Construction

[0047] figure 1 A flow chart of the method for realizing media anchoring in the present invention, such as figure 1 shown, including the following steps:

[0048] Step 100: After receiving the SDP request, the ALG carries the media resource information in the SDP request and the media resource information of the media processing entity allocated by the ALG in the SDP request to be forwarded, and forwards the SDP request.

[0049]In this step, the media resource information of the initiator of the SDP request is carried in the SDP request received by the ALG, and the ALG will allocate the media resource information of the media processing entity used to connect to the destination party of the SDP request (that is, the media resource information related to the ALG information). The SDP request forwarded by the ALG is forwarded to the AS via the S-CSCF.

[0050] The SDP request can be carried by the SIP INVITE message.

[0051] Step 101: the AS receives the SDP request, and d...

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Abstract

The invention discloses a method and system for realizing the anchor of a media. The method comprises the following steps of: after an application-level gateway (ALG) receives a session description protocol (SDP) request, carrying media resource information in the SDP request, which is received by the ALG, in the SDP request required to be forwarded and media resource information of a media processing entity, which is distributed by the ALG; forwarding the media resource information to the SDP request; after an application server (AS) receives the SDP request, determining whether the ALG is required for anchoring the media and transmitting a media anchor indication for expressing whether the ALG is required for anchoring the media as well as a session initial protocol (SIP) message responded by the SDP; and after the ALG receives the SIP message, determining whether the media is anchored. Whether the ALG is required for anchoring the media is realized by the AS by calling an existing signaling in the establishment process without an extra signaling, thereby the signaling consumption is saved and further the call establishment duration is shortened.

Description

technical field [0001] The present invention relates to the call technology in IP Multimedia Subsystem (IMS, IP Multimedia Core Network Subsystem), especially a method and system for realizing media anchoring. Background technique [0002] IMS is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project), which builds an open and flexible service environment. IMS supports multimedia applications and can provide users with rich multimedia services. [0003] In the IMS service system, the control layer and the service layer are separated, and the control layer does not provide specific services, but only provides necessary functions such as triggering, routing, and charging to the service layer. [0004] The service triggering and control functions in the control layer are performed by a call session control function (CSCF, Call Session Control Function). The call session control function is divided into: pr...

Claims

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Application Information

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IPC IPC(8): H04L29/06
CPCH04W76/02H04W76/10
Inventor 谢振华
Owner ZTE CORP
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