Wireless communication system

Abstract

The invention relates to a wireless communication system, comprising a wireless communication array and a wireless signal transmit-receive chain. The wireless communication array comprises a first array fiber, an optical branching device, and a plurality of wireless communication nodes. The first array fiber transmits a first signal optical signal. The optical branching device conducts branching on the first signal optical signal, obtaining a branching optical signal. The wireless communication node simultaneously and synchronously sends a first pulse signal. The wireless signal transmit-receive chain comprises a synchronizing controller, a first signal fiber, a plurality of first passive optical branching devices, a plurality of wireless signal transmit-receive nodes, a plurality of second passive optical branching devices, and a second signal fiber. The synchronizing controller generates a receiving and controlling instruction and sends it to the wireless signal transmit-receive node, which generates a first communication optical signal based on the first pulse signal.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a wireless communication system. Background technique [0002] So far, the purpose of all mobile communication systems is to solve personal communication. Therefore, from the first generation mobile communication system to the current 5G mobile communication system, all the development of mobile communication technology is to improve the quality of personal communication. Therefore, it is unrealistic to try to solve the vehicle-to-ground communication of high-speed trains under wide-area conditions based on the existing mobile communication technology or existing infrastructure. In fact, GSM-R, which evolved from GSM technology, is increasingly unable to meet the increasingly urgent information and intelligent vehicle-to-ground communication needs of high-speed railway transportation, and there is no effective progress in this technology. And the technical progress...

AI Technical Summary

Problems solved by technology

Long-distance wireless communication due to climate change, such as rain, snow, fog and other harsh weather phenomena will not only reduce the quality of wireless communication, but even interrupt communication, so that wireless communication will lose the important support means of high-speed rail informatization and intelligence will directly lead to the failure of high-speed rail informatization and intelligence

[0006] Similarly, although wireless optical communication is not affected by the Doppler effect, it has too high requirements on meteorological conditions and the high complexity of the system. At present, it is not possible to see the possibility of this technology being applied to high-speed rail communication, while satellite communication In addition to the limitation of communication bandwidth, weak satellite signals and too many railway tunnels in high-latitude areas are also the main reasons that limit the application of satellite communication in high-speed rail vehicle-ground communication

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