Radio frequency signal dynamic coverage system and method taking wireless laser communication as carrier

Abstract

The invention discloses a radio frequency signal dynamic coverage system and method taking wireless laser communication as a carrier, at least comprising a base station, movable access points and terminal users, the base station modulates radio frequency signals on wireless laser signals and sends the signals to one or more movable access points, and the movable access points freely move within a certain range; after receiving the wireless laser signal, the movable access point converts the wireless laser signal into a wireless radio frequency signal and sends the wireless radio frequency signal to a terminal user; the base station and the movable access point are respectively provided with a positioning and tracking subsystem so as to realize bidirectional wireless laser communication; the mobile access points dynamically adjust the positions of the mobile access points and output radio frequency beams according to the number and positions of the terminal users, and dynamic coverage of radio frequency signals is achieved; wireless laser communication is used as a carrier, the constraint of traditional optical fiber communication is removed, the radio frequency coverage area can be dynamically adjusted, the high rate and the high bandwidth of the optical carrier radio frequency system are kept, the coverage range of the system is expanded, and the flexibility of the system is improved.

Description

technical field [0001] The invention belongs to the field of wireless communication technology, in particular to wireless laser communication technology and radio frequency wireless communication technology, and relates to a radio frequency signal dynamic coverage system and method using wireless laser communication as a carrier. Background technique [0002] The traditional optical carrier radio frequency technology combines the advantages of large bandwidth of light with the flexibility of radio frequency wireless access. It has the advantages of small size, light weight, low loss, anti-electromagnetic interference and high transmission quality. Large loss and weak anti-interference ability. However, the traditional optical carrier RF technology is based on optical fiber to transmit signals. The position of the optical link is relatively fixed and cannot be dynamically adjusted, and the coverage area of ​​the RF signal must be based on the optical fiber wiring design, whic...

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Problems solved by technology

[0002] The traditional radio frequency over optical technology combines the advantages of large bandwidth of light and the flexibility of radio frequency wireless access. It has the advantages of small size, light weight, low loss, anti-electromagnetic interference and high transmission quality, and can solve the problems existing in traditional microwave transmission systems. Large loss, weak anti-interference ability and other problems

However, the traditional RF-on-fiber technology is based on optical fiber transmission signals, and its optical link position is relatively fixed and cannot be adjusted dynamically. Moreover, the coverage area of ​​RF signals must be based on the wiring design of optical fibers, which limits the coverage and freedom of RF.

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