A synchronization method, device, device and storage medium for a wireless communication system

Abstract

The invention discloses a synchronization method, device and equipment of a wireless communication system and a computer readable storage medium. According to the method, conjugate multiplication processing needs to be carried out on received signals and locally-stored synchronization sequences through signals delayed by T sampling periods of the received signals and the locally-stored synchronization sequences, cross-correlation values are calculated through processed target sequences and local sequences, and therefore synchronization operation is executed; due to the mode of calculating thecross-correlation value, the peak value dispersion phenomenon caused by high-speed movement is avoided, so that if the target sequence has the same signal as the local sequence, the peak value of thecross-correlation value can have a sharp peak value, and the working performance in a high-dynamic environment is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication systems, and more specifically, to a synchronization method, device, equipment, and computer-readable storage medium for a wireless communication system. Background technique [0002] In recent years, with the rapid development of technologies such as high-speed rail and unmanned aerial vehicles, the demand for high-speed communication in high-dynamic environments is increasing. However, the high-speed movement of communication equipment will introduce large Doppler frequency shift and Doppler expansion. , therefore, the performance of the wireless broadband communication system will be severely degraded when it is applied in a high dynamic environment. It is particularly important to break through the key technology of wireless broadband communication in a high dynamic environment. Time-frequency synchronization is the primary module of the receiver, which affects the wireless...

AI Technical Summary

Problems solved by technology

However, when the SCFDE system works in a highly dynamic environment, these synchronization methods are basically no longer applicable. This is because the high-speed motion will cause rapid changes in the transmission channel, and the rapid change in channel transmission characteristics will make the channel responses irrelevant and destroy the repeating structure. Correlation characteristics, resulting in the inconspicuous peak of the autocorrelation function, thus invalidating the peak detection synchronization method based on the delay correlation of the received signal

Images