A synchronization method and device, a synchronization system, and a computer-readable storage medium

Abstract

This application discloses a synchronization method, including: the first device sequentially 1 To frequency point F N Periodically transmit the first PSS sequence and the first PDSCH control information, the first PSS sequence and the first PDSCH control information are used by the second device to perform the first PSS detection and the first PDSCH control information detection; f 1 to frequency point f M Receive signals on the Internet and perform second PSS sequence detection; when the second PSS sequence is detected, the first device obtains the second half-frame synchronization information, and performs second PDSCH control information detection according to the second half-frame synchronization information; when the second PSS sequence is detected When the second PDSCH control information is received, the first device obtains the synchronization information of the second frame and enters the synchronization state. The application also discloses a synchronization device, a synchronization system, and a computer-readable storage medium. In this application, one device periodically sends PSS sequence and PDSCH control information, and the other device performs PSS detection and PDSCH control information detection, effectively realizing anti-interference and fast synchronization between the two devices.

Description

technical field [0001] The present application relates to but not limited to the technical field of communication, and specifically relates to a synchronization method and device, a synchronization system, and a computer-readable storage medium. Background technique [0002] Unmanned aircraft, referred to as Unmanned Aerial Vehicle (UAV), is an unmanned aircraft controlled by radio remote control equipment and its own program control device. It involves sensor technology, communication technology, information processing technology, intelligent control technology and power propulsion technology, etc., and is a product of high-tech content in the information age. [0003] The drone synchronization process is a process in which the remote controller and the aircraft realize time synchronization and frequency synchronization. Time synchronization is to adjust the time values ​​of clocks distributed in different places to a certain degree of accuracy or compliance through time co...

AI Technical Summary

Problems solved by technology

The problem with this method is that the data processing is relatively complicated, and the operating frequency and memory of the central processing unit (CPU) of the terminal equipment are relatively high, which is not conducive to reducing the power consumption of the terminal and is not suitable for engineering applications. In addition, this method is also Not suitable for strong interference and long-distance scenes

Although this method can solve the problems of high power consumption of the transceiver duplexer in the traditional UAV frequency division multiplexing system and is not conducive to lightweight design, the MCS-51 single-chip microcomputer it uses cannot adapt to strong interference scenarios and is not suitable for long-distance synchronization. Wait

Images