Frequency hopping communication method for digital non-center communication system

Abstract

The present invention discloses a frequency hopping communication method for digital centreless communication systems, which includes procedures below: Service frequency points are divided into one or a plurality of frequency hopping sequence sets. A calling broadcasting station detects state of each service frequency point and selects a frequency hopping sequence set of higher quality. After acquisition of time slot synchronization for the calling broadcasting station and a designated service frequency point, the calling broadcasting station initiates a call request to a called broadcasting station and transfers the call request to the designated service frequency point and the time slot. After receiving the call request from the calling broadcasting station, the called broadcasting station transfers to the service frequency point and the time slot designated by the call request of the calling broadcasting station. The calling broadcasting station communicates with the called broadcasting station on the designated frequency point and the time slot. Different call frames circularly use each service frequency point in a selected frequency hopping sequence set through frequency hopping until communication is finished. The method reduces impact of selective frequency attenuation on normal communication of broadcasting stations and improves communication efficiency.

Description

technical field [0001] The invention relates to a physical channel multiplexing method of a wireless communication system, in particular to a frequency-hopping communication method of a service channel of a digital centerless communication system. Background technique [0002] In the existing digital centerless communication system, without the control of the central node, direct communication can be realized between the terminals. Therefore, in a centerless communication system, the design of the structure, call signaling flow, and terminal status will affect the performance of the entire system. [0003] At present, the digital centerless communication system is mainly implemented based on the TDD (Time Division Duplex) digital communication system, which has a certain time slot structure, and its typical communication implementation mode is half-duplex. During the entire communication process, the receiving and transmitting stations always occupy a specific time slot on ...

AI Technical Summary

Problems solved by technology

During the entire communication process, the receiving and transmitting stations always occupy a specific time slot on a certain frequency point for communication. When the occupied frequency point is in the position of frequency selective fading, it will cause great damage to normal communication. , or even cause a complete failure of normal communication, so it is necessary to take appropriate measures to overcome

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