Self-addressed communication method applied to interphone

Abstract

The invention relates to a self-addressed communication method applied to an interphone, supporting a voice traffic and a data traffic and comprising the steps of subnet frequency allocation and automatic idle channel allocation, wherein the step of subnet frequency allocation comprises collection and uniform allocation of frequency resources, each user unit selects a subnet Zone with a number, each subnet Zone contains a frequency congregation without three-step intermodulation interference and adjacent-channel interference, and different user units use different frequency congregations without the three-step intermodulation interference and the adjacent-channel interference; and the step of automatic idle channel allocation comprises the steps of uniformly managing channels in each subnet Zone and automatically allocating the channels according to the traffic requirements. The self-addressed communication method applied to the interphone solves the problem of overlow using efficiency of frequency spectrum and simultaneously greatly enhances anti-interference capability on the basis of reserving the characteristics of rapid calling, simple use and the like of the current conventional mobile communication.

Description

technical field [0001] The present invention relates to the field of LMR (Land Mobile Radio, LMR for short), land mobile wireless communication, more specifically, relates to a self-selecting address communication method applied to walkie-talkies. Background technique [0002] Today, with the rapid development of my country's economy, walkie-talkies, as a flexible, convenient and fast means of information communication, are increasingly valued by people. Although the market is prosperous, it is quite chaotic. There are counterfeit and shoddy products flooding the market, professional walkie-talkies out of control, and radio order Chaos, hidden dangers to social security and other issues. [0003] The current outstanding problems in the use of low-end walkie-talkie frequencies: [0004] ① The mutual interference between walkie-talkies is serious. At present, there are widespread irregular use of spectrum, even cross-band use, which is easy to be interfered by other devices a...

AI Technical Summary

Problems solved by technology

[0004] ① The mutual interference between walkie-talkies is serious

At present, there are widespread irregular use of spectrum, even cross-band use, which is easy to be interfered by other devices and interfere with the work of other dedicated frequency band wireless devices

[0005] ② Spectrum use efficiency is low

Since there are 1 control channel and 159 service channels in the shared 2M frequency range, when the traffic is heavy, the time to search for idle channels will be greatly increased, and the time required for call establishment is very long

[0011] 2. High call collision rate

Since the centerless call establishment instructions are all sent on the only control channel, when the calls are frequent, it is easy to transmit collisions, resulting in call failures

[0012] 3. The misjudgment rate of channel status is high

[0013] 4. Short battery life

Since the centerless call establishment instructions are sent on the only control channel, the terminals within the call range will need to receive each instruction, so the time in the receiving state will be greatly increased, and the increase in working time will directly affect the use of the battery life

[0014] As mentioned above, conventional land mobile wireless communication equipment LMR has great deficiencies in spectrum utilization efficiency, anti-interference ability and spectrum resource management. Some current technologies such as centerless technology can solve the above problems to a certain extent, but Its own technology has congenital defects, which bring the problem of excessive call delay and increased call collision probability to the current wireless communication, which leads to the increase of call loss rate. At the same time, the dial management of the centerless technology brings inconvenience to the current users and inflexibility issues

[0015] Therefore, the present invention will propose a self-selecting address communication method applied to walkie-talkies. On the basis of retaining the fast and simple use of current conventional mobile communication calls, it can solve the problem of low spectrum utilization efficiency and greatly improve the anti-interference ability.

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