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Call information updating method for trunking communication system terminal

A system terminal and call information technology, which is applied in wireless communication, safety devices, electrical components, etc., can solve the problems of reducing system reliability, terminals not joining calls in time, and terminals not being able to know group calls/broadcasts and related information in time , to achieve the effect of improving efficiency, safety and reliability

Active Publication Date: 2011-09-28
SHENZHEN SED WIRELESS COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the prior art, there is no complete and perfect call information update method of the trunking communication system, and the terminal cannot know the ongoing group call / broadcast and related information in time, which may cause the terminal not to join the necessary call in time, thereby reducing the system reliability
Especially, in the GSM-R network, the existing technology has greatly affected the efficiency and security of railway dispatching command communication

Method used

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  • Call information updating method for trunking communication system terminal
  • Call information updating method for trunking communication system terminal
  • Call information updating method for trunking communication system terminal

Examples

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Embodiment Construction

[0031] Such as figure 1 As shown, an embodiment of a method for updating call information of a trunked communication system terminal includes the following steps:

[0032] Step 1. After the terminal enters the cell, if the terminal is not in the call state, perform steps 2-5;

[0033] Step 2, the terminal decodes the message of the BCCH channel, obtains system message 1, and obtains configuration parameters of the NCH channel from the system message 1, and starts NCH channel monitoring according to the configuration parameters;

[0034] Step 3, if a group call / broadcast is established, after the terminal monitors the notification message of the group call / broadcast sent by the network on the NCH channel, save the group call / broadcast information of the group call / broadcast in the terminal;

[0035] Step 4. If there is a change in the group call / broadcast information, after the terminal monitors the group call / broadcast notification message sent by the network on the NCH chann...

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Abstract

The invention discloses a call information updating method for a trunking communication system terminal. The method comprises the following steps that: after entering a cell, a terminal executes the subsequent steps if not in a call state; the terminal decodes a message of a broadcast control channel (BCCH) to obtain a system message 1, obtains configuration parameters of a notification channel (NCH) from the system message 1, and starts NCH listening according to the configuration parameters; if a group call / broadcast is established, the terminal saves the information of the group call / broadcast at the terminal after listening to a group call / broadcast notification message transmitted in the NCH by a network; if the information of the group call / broadcast is changed, the terminal compares and updates the information of the group call / broadcast saved at the terminal after listening the group call / broadcast notification message transmitted in the NCH by the network; and the terminal displays the information of the group call / broadcast in real time, wherein the information comprises information on group number and information on whether the group call / broadcast is initiated by the terminal or not.

Description

technical field [0001] The invention relates to a method for updating call information of a cluster communication system terminal. Background technique [0002] Group call / broadcast service is an important service of the trunking communication system. It breaks through the limitations of point-to-point communication. It can establish group calls in a simple way, realize specific functions such as dispatching command and emergency notification, and is especially suitable for railway traffic command and dispatch. department. [0003] Voice Group Call Service (VGCS) is a telecommunication service. The group call service defines a point-to-multipoint voice communication mode in which multiple parties participate (mobile stations or fixed-line telephones), some of whom can speak, and multiple parties listen. The voice group call service can call all members of the group with one group function code (group ID), and the mobile users participating in the same voice group call serv...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W12/00H04W76/02
Inventor 罗江友乔绍虎曾敏寇晓琦朱烜伟孙鑫孔庆富
Owner SHENZHEN SED WIRELESS COMM TECH
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