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Call method and system for trunked communication

A trunking communication and call method technology, applied in the field of communication, can solve problems such as call failure, failure to connect users, failure to realize emergency call access, etc., and achieve the effect of access

Inactive Publication Date: 2009-02-11
CHANGZHOU XIAOGUO INFORMATION SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In trunking communication applications, due to the particularity of trunking calls, many users may stay in a trunking session for a long time, so when there is an urgent matter to call some users, these users cannot be connected, resulting in call failure; in addition , even if the called user is in the idle state, if the air interface resources of the service cell where the called user is located are insufficient, the emergency call access cannot be realized

Method used

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  • Call method and system for trunked communication
  • Call method and system for trunked communication
  • Call method and system for trunked communication

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Embodiment Construction

[0038] In trunking communication, each terminal user can belong to multiple different groups, and can participate in various conversations, such as: group call, point-to-point call, etc. Cluster communication generally adopts the half-duplex PTT (Push-To-Talk) method, which is the so-called push-to-talk method. For the convenience of users, each terminal has a separate button in an obvious position to initiate an emergency call. When pressing this button, the user can select the number for the emergency call. It should be noted that the terminal refers to a terminal supporting trunking services.

[0039] The present invention provides a trunking communication calling method and system, the core idea of ​​which is: after the called user receives the emergency call invitation message, if in the conversation state, exit the original conversation, and the trunking switching center connects with the calling user emergency call; if it is idle, the emergency call with the calling us...

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Abstract

The invention relates to a group communication method and relative system, wherein said method comprises that: called user receives emergence invitation message, if it is communicating, getting out the communication, the group exchanger connects the emergence communication with caller; if it is free, exchanger connects it to the caller. And the system comprises calling terminal, called terminal and group exchanger; the calling terminal sends the emergence call, and sends emergence call information to the exchange; the exchanger invites the called terminal.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a trunking communication emergency call method and system. Background technique [0002] Trunking communication refers to a dedicated mobile communication technology in which multiple users (departments, groups) share a group of wireless channels and use these channels dynamically. It has experienced the development process from analog technology to digital technology. Compared with the public cellular mobile system, the digital trunking communication system has the following characteristics: call connection is fast; half-duplex communication mode is used; and trunking services such as single call, group call, and broadcast call can be supported. [0003] The trunking communication system has the characteristics of specific dispatching function, group call function and quick call, so it plays a huge role in the field of professional communication. Its main application obje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/28H04Q7/38
Inventor 漆宝剑孟秋轶李帅兵赵静鑫
Owner CHANGZHOU XIAOGUO INFORMATION SERVICES
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