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Method and system for establishing group call/group broadcast

A method of establishing a group call technology, applied in the field of mobile communication, can solve the problems of network construction cost, long time, high maintenance cost, etc., and achieve the effect of reducing the number of message interactions and speeding up the initiation process.

Inactive Publication Date: 2010-03-24
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this process requires the process of establishing a link on the SD channel and assigning it to the TCH channel. This process requires multiple message signaling interactions such as immediate assignment and assignment, and the immediate assignment message is affected by the timing of sending. takes longer
Reducing the exchange of a message does not improve the performance of the entire initiation process very much
Moreover, since the establishment of the SD channel is temporary, and the channel needs to be released in the end, the entire initiation process still needs more than 800 milliseconds
When special departments such as public security and fire protection require that the call establishment time of the fast group call service be around hundreds of milliseconds, the above-mentioned prior art group call / multicast establishment methods cannot meet the requirements
In addition, the dedicated digital trunking system of iDEN and TETRA technology can be used to realize the call establishment of the fast group call service within hundreds of milliseconds. Low utilization rate, high cost of network construction and maintenance

Method used

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  • Method and system for establishing group call/group broadcast
  • Method and system for establishing group call/group broadcast
  • Method and system for establishing group call/group broadcast

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Embodiment Construction

[0049] The basic principle of the present invention is: send a notification message with the at least one service channel information on the notification channel, so that the mobile station knows in advance which channels in the current cell can be used to initiate a group call / multicast; The way that the mobile station applies for the traffic channel to the base station controller is changed to the way that the base station controller actively configures the traffic channel for the group call / multicast service, and directly accesses and initiates the group call / multicast on the traffic channel. Therefore, there is no need to go through the process of immediately assigning and assigning messages, reducing the number of message interactions and no longer being affected by the timing of sending immediately assigned messages; at the same time, because there is no need for independent dedicated channel establishment and release process, thus greatly speeding up the process of initi...

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Abstract

The method comprises: a) presetting a service channel at network side; b) sending a notice message containing at least one service channel message on the notice channel; c) directly sending the request of initiating the group call / multicast on the relevant channel in at least one service channel.

Description

technical field [0001] The present invention relates to the group call / multicast technology in the field of mobile communication, in particular to a group call / group call that realizes fast group call calls in a trunked communication network based on GSM (Clobal System for Mobilec Communication, Global System for Mobile Communications). Broadcast establishment method and system. Background technique [0002] GSM is a common mobile communication system at present. In addition to realizing basic mobile communication services, people have also developed a technology for realizing group call communication in GSM. The GSM-R system is a communication system for realizing group calls, and it is a set of international standards for railway mobile communication formulated by Europe. GSM-R uses GSM communication technology as the service bearer, and provides VGCS (Voice Group Call Service) to the mobile station (MS) through the eMLPP (enhanced Multi-LeverPrecedence and Pre-emption, e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/28H04Q7/38
Inventor 刘冯
Owner HUAWEI TECH CO LTD
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