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Method, apparatus and communication system for transferring media stream

A media stream and transfer request technology, applied in the field of communication, can solve the problems of media stream record confusion and waste of storage resources, etc.

Inactive Publication Date: 2011-11-23
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the embodiments of the present invention provide a method, device, and communication system for transferring media streams, so as to solve the problems of media stream record confusion and storage resource waste after media streams are returned in the prior art. The technical solution is as follows:

Method used

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  • Method, apparatus and communication system for transferring media stream
  • Method, apparatus and communication system for transferring media stream
  • Method, apparatus and communication system for transferring media stream

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Assume that UE-1 and UE-2 have media stream connections media1 and media2 respectively with the same Remote-UE (peer UE), and the media stream media2 in UE-2 is transferred from UE-1 to UE- 2. In this embodiment, UE-2 sends a media stream return request to UE-1 after learning that the return operation needs to be performed, and completes the subsequent return process. The method flow chart can be found in figure 1 shown, including:

[0055] S101. UE-2 receives an operation request for media2, initiates a return process according to the request, and deletes a record of a media stream transfer relationship related to media2.

[0056] After UE-2 receives the operation request for media2, it judges whether media2 is transferred from UE-1 to UE-2 according to the stored media stream transfer relationship record, and if so, initiates a return request and executes the subsequent return in this embodiment process; if not, initiate a transfer request, that is, transfer media2 ...

Embodiment 2

[0073] Assume that UE-1 and UE-2 have media stream connections media1 and media2 respectively with the same peer UE, and the media stream media2 in UE-2 is transferred from UE-1 to UE-2 through the transfer process in the early stage. In this embodiment, UE-2 sends a media stream transfer request to UE-1, and UE-1 judges whether the transferred-in media stream is the transferred-out media stream, and completes the subsequent return process. The method flow chart can be found in figure 2 shown, including:

[0074] S201. UE-2 sends a media stream transfer request message to UE-1. The source identifier of the media stream to be transferred is carried in the message, so that UE-1 can determine whether the media stream to be transferred is transferred out by itself.

[0075] The transfer media stream request message may be carried by refer. In the refer message, the source identifier of media2 needs to be included, so that UE-1 can determine whether media2 is a media stream tran...

Embodiment 3

[0086] Assume that UE-1 and UE-2 have media stream connections media1 and media2 respectively with the same peer UE, and the media stream media2 in UE-2 is transferred from UE-1 to UE-2 through the transfer process in the early stage. In this embodiment, UE-2 sends a return media stream request message to the SCC AS after learning that the return operation needs to be performed, and the SCC AS completes the subsequent return process. The method flow chart can be found in image 3 shown, including:

[0087] S301. UE-2 receives an operation request for media2, initiates a return process according to the request, and deletes a record of a media stream transfer relationship related to media2.

[0088] The specific implementation of this step is the same as that described in S101.

[0089] S302. UE-2 sends a return media stream request message to the SCC AS.

[0090] The specific implementation of this step is similar to that described in S102, except that the sending destination...

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Abstract

The embodiment of the invention discloses a method, a device and a communication system for transferring media stream. After a first user device transfers the media stream to a second user device, the second user device transfers the media stream to the first user device; the method for transferring the media stream comprises: receiving the request massage for returning the media stream which is sent by the second user device; restoring the sending and receiving of the media stream on the first user device according to the request message for returning the media stream. With the technical proposal of the embodiment of the invention, the record confusion of the media stream in the first user device can be avoided. After the return is finished, a service centralizing and conversation continuity application server SCC AS or the second user device can delete the correlative media-stream transfer relation records so as to avoid the waste of storing resources.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method, device and communication system for transferring media streams. Background technique [0002] IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) is a service network based on IP (Internet protocol, Internet Protocol) switching, supports multiple services such as voice, video, and data, and is considered to be the core technology of the next-generation communication network. A UE (User Equipment, user equipment) can access an IMS network through a packet-switched access network to perform multimedia services. The core of IMS is CSCF (Call Session Control Function, call session control function) and various AS (Application Server, application server), S-CSCF (Serving-CSCF, serving CSCF) is responsible for routing the call request to the correct AS, AS is responsible for executing business logic. [0003] The SC (Service Continuity, business continuity) project...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/08H04W28/02
Inventor 金辉龙水平段小嫣
Owner HUAWEI DEVICE CO LTD