Digital cluster communication method with the control channel frequency hopping function

A digital trunking communication and control channel technology, which is applied in the communication between multiple stations, multiplex communication, code division multiplexing system, etc., can solve the problem that the control channel can not hop frequency, etc., to improve the resistance Interference ability, effect of improving frequency utilization

Active Publication Date: 2007-08-08
SYNERTONE COMM TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a digital trunking communication method with control channel frequency hopping function, by setting control channel frequency hopping and frequency hopping networking in the case of control channel frequency hop

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  • Digital cluster communication method with the control channel frequency hopping function
  • Digital cluster communication method with the control channel frequency hopping function
  • Digital cluster communication method with the control channel frequency hopping function

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Embodiment Construction

[0051] The present invention will be further described below in conjunction with accompanying drawing:

[0052] 1. Technical problems to be solved

[0053] In the FHMA (Frequency Hopping Multiple Access, Frequency Hopping Multiple Access) digital trunking communication system, the control channel adopts fixed frequency, and only the traffic channel adopts frequency hopping spread spectrum technology. The disadvantage of this scheme is that the anti-intentional interference ability is poor. When the control channel does not hop frequency, the control channel may be seriously interfered but the quality of the service channel is still good. Due to the failure of the control channel, the entire wireless communication system will be damaged at this time. unable to work properly.

[0054] Aiming at this problem, the present invention proposes a control channel frequency hopping method, which solves the problem of frequency hopping networking in the case of control channel frequency...

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Abstract

The invention relates to one digital integral communication method with control signal channel jump frequency function, which comprises integral group mode and direct mode, wherein, the former is to store information base devices divided into single base station module and multi-base module; the latter one is to store information basic device with mobile bench work mode; the jump frequency comprises control signal jump frequency and business signal jump frequency by use of TDMA system, wherein, the Nts hour gap to form one frame hollow one to form one frame.

Description

technical field [0001] The invention relates to wireless communication technology, and mainly refers to a digital trunking communication method with a control channel frequency hopping function. Background technique [0002] Frequency hopping is one of the most commonly used spread spectrum methods. Its working principle refers to the communication method in which the carrier frequency of the transmission signal of the transmitting and receiving parties changes discretely according to a predetermined rule. controlled by random jumps. From the perspective of the time domain, the frequency hopping signal is a multi-frequency frequency shift keying signal; from the perspective of the frequency domain, the frequency spectrum of the frequency hopping signal hops randomly at unequal intervals on a wide frequency band. [0003] Compared with fixed frequency communication, frequency hopping communication is more concealed and difficult to be intercepted. As long as the other party...

Claims

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Application Information

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IPC IPC(8): H04Q7/28H04B7/26H04J13/06H04B1/713
Inventor 姚忠邦杨德刚
Owner SYNERTONE COMM TECH CO LTD
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