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Method for keeping information synchronizntion of group between terminal side and network side in group communication system

A technology of group information and trunking communication, applied in the direction of radio/induction link selection and arrangement, selection of devices, etc., can solve the problem that the terminal cannot make a group call correctly, cannot ensure that the group information and group information are the same, etc., to ensure that the The effect of group information synchronization, ensuring integrity and correctness

Active Publication Date: 2007-02-21
SHENZHEN ZTE TRUNKING TECH CORP
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] However, the methods provided by the current prior art cannot ensure that all the group information of a specific terminal on the network side is the same as all the group information stored on the specific terminal. Once some error causes the group information on the terminal to be incorrect, Then the terminal may not be able to make group calls correctly, so there must be a clear method to ensure that the corresponding group information on the terminal side and the network side are the same, so as to strengthen the correctness and security of the trunking system

Method used

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  • Method for keeping information synchronizntion of group between terminal side and network side in group communication system
  • Method for keeping information synchronizntion of group between terminal side and network side in group communication system
  • Method for keeping information synchronizntion of group between terminal side and network side in group communication system

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Embodiment Construction

[0025] figure 1 Shown is a flow chart of a method for maintaining group information synchronization between the terminal side and the network side in the trunking communication system of the present invention, including the following steps:

[0026] The communication terminal generates a random number according to the group information stored on the terminal side, and calculates the random number and the group information of each group to generate a terminal side checksum (step 101);

[0027] The communication terminal sends the random number and the terminal side checksum to the network side (step 102);

[0028] The network side calculates through the same algorithm and the group information that the network side has successfully updated according to the random number received, and generates a network side checksum (step 103);

[0029] The network side compares the received terminal side checksum with the calculated network side checksum (step 104);

[0030] When the compar...

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Abstract

The method comprises: according to the group information saved in the terminal side the communication terminal generates a random number and a terminal side check sum, and sends them to the network side; according to the received random number, terminal side check sum and the group information saved in network side, the network side decides whether or not to initiate a group information renew in order to keep the group information of terminal side synchronous with the one of network side.

Description

technical field [0001] The invention relates to the field of trunking communication systems, in particular to a method for keeping group information synchronous between a terminal side and a network side in a trunking communication system. Background technique [0002] The trunking communication system was born in the 1970s. The earliest trunking communication system was an analog system. The digital trunking technology emerged around the world in the mid-1990s, and a digital trunking network appeared in China in the late 1990s. The most important feature of trunking technology is the ability to schedule and group calls. The dispatching function of the trunking service refers to initiating calls to a certain number of terminals at the same time, allowing these terminals to participate in a call at the same time; the group call function of the trunking service refers to calling a group number on a communication terminal, and all The terminal calls into a call at the same tim...

Claims

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Application Information

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IPC IPC(8): H04Q7/28
Inventor 李永奇任岗陈云斌
Owner SHENZHEN ZTE TRUNKING TECH CORP
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