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A method for establishing group session

A technology for group conversation and conversation establishment, which is applied in the field of communication, can solve the problems of wasting network resources, multiple media ports and network resource occupation, etc., and achieve the effect of improving the use of system resources, simplifying the response mode, and realizing simplification

Active Publication Date: 2008-01-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0040] In order to solve the problem in the prior art that multiple media ports and network resources are always occupied, thereby wasting network resources, the present invention provides a method for establishing a group session

Method used

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  • A method for establishing group session
  • A method for establishing group session
  • A method for establishing group session

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0081] As shown in Figure 5, the flow of an embodiment in which the client creates a second session through the first session identifier is as follows:

[0082] Steps 501-502, Bob sends the INVITE message of setting up the second session to the control function server, and this message carries the first session identification (ID), Bob's media parameters (comprising port number, coding scheme, and the protocol (such as MSRP) adopted in transmission , file type, size, etc. related description). The media parameters are described by the SIP protocol as follows:

[0083] REQUEST-URI:

[0084] / / The requested object is a member of the session, with an instruction to create a new session

[0085] After receiving the INVITE message sent by Bob, the control function server obtains the group members (in this embodiment, Rose and Jack) participating in the group session corresponding to the first session ID in the invitation message, and assigns a second session ID for the second ses...

no. 2 example

[0095] As shown in Figure 6, the flow of the client exiting the second session is as follows:

[0096] Steps 601-608, Bob sends a request for establishing a second session (RTP video) to the control function server, and the control function server sends a request to join the sub-session (RTP video) to participants Rose and Jack of the first session (voice session), Rose and Jack join the second session.

[0097] Steps 609-610, Bob sends a BYE message to the control function server to end the session, and the message carries the first session identifier;

[0098] In steps 611-612, the control function server returns an OK response message to Bob, and closes the first session and the second session established in the first session.

[0099] If the control function server receives the request to end the first session, in addition to releasing the resources occupied by the session with Bob, it also sends a message to other clients (Rose, Jack) to end all one-way Bob in the first ...

no. 3 example

[0101] As shown in FIG. 7 , if BOB invites Rose and Jack to enter the voice session, Rose enters, but Jack does not enter because he is busy, but Bob knows the voice session identifier (ID). Later Bob and Rose establish a video session again. The procedure for the client to join the second session is as follows:

[0102] Step 701, Jack sends an INVITE message to request to join the first session, and the INVITE message carries the first session identifier. The SIP description of the message is as follows:

[0103] REQUEST-URI:

[0104] Step 702, Jack successfully joins the first session, and the control function server returns an OK response message to Jack, which carries all second session identifiers and media types of the second session in the first session, that is, the video session identifier and the media type of the video session . The message is described in XML, and the SIP format is as follows:

[0105] Content-Type: application / sub_session_set +xml (applicati...

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Abstract

The invention provides a method of establishing group conversation. The method includes: A. calling client side sends the message which can establish the second conversation in the first conversation to a server and the message carries the first conversation mark; B. the server obtains the group member list of the group conversation corresponding with the first conversation mark; C. the server sends out the request of establishing the second conversation to the group members and establishes the second conversation. The invention solves the problem of network resources waste caused by consistent occupation of the interfaces and network resources of a plurality of media in the same conversation in the prior art.

Description

Technical field: [0001] The invention relates to the communication field, in particular to a method for establishing group conversations. Background technique: [0002] PTT (Push to Talk) is a half-duplex voice service that communicates by pressing function keys. Currently, it includes many implementation methods, such as Motorola's iDEN and Nokia's Tetra. PoC (PTT over Cellular) is a PTT service implemented on a packet network defined by OMA (Open Mobile Alliance). It adopts VoIP (packet voice) and half-duplex mode to meet the needs of PoC clients at low cost and high efficiency. (hereinafter referred to as the client) real-time communication requirements. Through this service, the client can initiate a PoC session to a single client or a group, realizing a one-to-one or one-to-many session. [0003] In a PoC session, servers are divided into control function and participation function servers according to logical functions. The control function server provides centraliz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/58
Inventor 伍旭刚张生庭李林
Owner HUAWEI TECH CO LTD
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