Co-channel full duplex communication method of digital non-center communication system

Abstract

The invention relates to an identical frequency duplex communication method which is applicable to receiving and transmitting a communication state that needs a real-time interaction between radio stations, thus improving communication efficiency. The technic proposal of the invention is that the method comprises that: (1) a frequency of a digital center-less communication system is divided into aplurality of frequency spots and time slots; (2) the frequency spots are classified into a control frequency spot and a business frequency spot; (3) the inspection business frequency spot state of acalling station is that an access frequency spot and two different time slots on the frequency spot are selected; (4) the calling station launch a calling request on the control frequency spot; (5) the calling station is switched to the assigned business frequency spot and the time slot for waiting for receiving the information of a called station; (6) the called station carries out cyclic inspection for the control frequency spot and searches if the calling corresponds to the control frequency spot. If correspondence exists, the called station switches into the assigned frequency spot and time slot and directly communicates with the calling station; (7) the calling station and the called station carry out the duplex communication on the assigned frequency spots and time slots; (8) after communication, both stations release channels.

Description

technical field [0001] The invention relates to a full-duplex communication method, in particular to a same-frequency full-duplex communication method of a digital centerless communication system. Background technique [0002] In the existing digital centerless communication system, the typical communication implementation mode is half-duplex. In the half-duplex mode, the calling station and the called station need to share the mastership of the channel in a time-division multiplexed manner. At the same time, only one party can occupy the communication channel as the originating station at the same time, and a certain protocol needs to be set. Transferring the mastership of the channel back and forth between the receiving and generating stations, arbitrating multiple parties' requests for channel mastering, etc., will bring a certain amount of resource overhead, and is not conducive to communication applications that require real-time interaction between the receiving and ge...

AI Technical Summary

Problems solved by technology

In the half-duplex mode, the calling station and the called station need to share the master control of the channel in a time-division multiplexed manner. At the same time, only one party can occupy the communication channel as the sending station at the same time, and a certain protocol needs to be set. Transferring the mastership of the channel between the receiving and generating stations, arbitrating multiple parties' requests for channel mastering, etc., this will bring a certain amount of resource overhead, and is not conducive to communication applications that require real-time interaction between the receiving and generating stations Happening

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