Asymmetric time division multiplexing method of digital radio transmission and realizing system thereof

Abstract

The invention discloses an asymmetric time division multiplexing method of digital radio transmission, and a system comprising a main control end and a group of controlled ends in communication with the main control end is provided in the method. The system has three states: an idle state, an uplink state and a downlink state, and keeps the synchronization time of t ms at the start of each frequency hopping period for transmitting synchronous pockets. The invention also discloses the system of the asymmetric time division multiplexing method of digital radio transmission, comprising the main control end and the controlled ends in communication with the main control end, wherein the main control end comprises a main control radio transmit-receive unit, a main control timing unit and a maincontrol arbitration unit, and each controlled end comprises a controlled radio transmit-receive unit, a controlled timing unit and a controlled arbitration unit. The invention automatically finishes the synchronous time correction of the main control end and the controlled ends in the communication process, ensures the communication stability, and also solves the problems of time synchronization,transmit-receive arbitration, and the like in communication transmission control.

Description

technical field [0001] The invention relates to a digital wireless transmission method and a realization system, in particular to an asymmetric time-division multiplexing method of digital wireless transmission and a realization system thereof. Background technique [0002] With the development of wireless communication technology, due to the unique advantages of digital signals in terms of anti-interference and security compared with analog signals, more and more consumer and monitoring products have added digital wireless transmission functions. [0003] Traditional digital wireless transmission can only support two-way communication between a master control terminal and a controlled terminal; or it can support one-to-many functions by broadcasting, but it cannot realize two-way communication. Moreover, because the clock frequency of each device cannot be completely consistent in engineering, the system will also cause instability in time synchronization during long-term o...

AI Technical Summary

Problems solved by technology

[0003] Traditional digital wireless transmission can only support two-way communication between a master control terminal and a controlled terminal; or it can support one-to-many functions by broadcasting, but it cannot realize two-way communication

Moreover, because the clock frequency of each device cannot be completely consistent in engineering, the system will also cause unstable time synchronization during long-term operation

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