Synchronization method, device and equipment of wireless communication system and storage medium
A wireless communication system and a technology for synchronizing operation are applied in the fields of equipment and computer-readable storage media, devices, and synchronization methods for wireless communication systems, and can solve problems such as failure, destruction of repetitive structure correlation characteristics, and insignificant peak value of autocorrelation function. , to achieve the effect of improving work performance
Active Publication Date: 2020-01-14
NAT UNIV OF DEFENSE TECH
View PDF8 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
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However, when the SCFDE system works in a highly dynamic environment, these synchronization methods are basically no longer applicable.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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0060] In recent years, both civil and military communications have placed increasing demands on the transmission capacity of the system, and the theory and technology of broadband wireless communications have made considerable progress. Transmission systems such as OFDM and SCFDE have become two typical transmission schemes for current wireless broadband communication. They have been widely used in various transmission protocols and stan...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More 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 of a wireless communication system. Background technique [0002] In recent years, with the rapid development of high-speed rail, drones and other technologies, there is an increasing demand for high-speed communication in a highly dynamic environment. However, the high-speed movement of communication equipment will introduce a large Doppler shift and Doppler expansion. Therefore, when the wireless broadband communication system is applied to a high dynamic environment, its performance will be severely degraded. 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 wireless broadband communication. One of the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L7/00
CPCH04L7/0054H04L27/2655
Inventor 辜方林魏急波曹阔赵海涛
Owner NAT UNIV OF DEFENSE TECH