Radio-over-fiber switching system

Abstract

A radio-over-fiber switching system comprises a radio-over-fiber switch, remote radiofrequency units, analog optical fiber circuits and radiating antennas, signals are transmitted between radio-over-fiber switch and the remote radiofrequency units by the analog optical fiber circuits, and the radiating antennas are connected with the remote radiofrequency units. The radio-over-fiber switch consists of at least four WiFi (wireless fidelity) access points, time division duplex units, radiofrequency switch units, at least two electronic-to-optical conversion units, optical switch units and a control circuit, the WiFi access points are used for receiving and transmitting WiFi radiofrequency signals, the time division duplex units are used for receiving, transmitting and separating the WiFi radiofrequency signals which are transmitted from or to the WiFi access points, the radiofrequency switch units are used for switching and distributing the WiFi radiofrequency signals, the electronic-to-optical conversion units are used for converting the WiFi radiofrequency signals from the radiofrequency switch units into optical signals, the optical switch units are used for switching and distributing the optical signals, and the control circuit is used for controlling at least two photoelectric conversion units which are used for converting the optical signals from the optical switch units into WiFi radiofrequency signals and controlling the radiofrequency switch units and the optical switch units.

Description

【Technical field】 [0001] The invention relates to an optical-carrying wireless switching system. 【technical background】 [0002] At present, WiFi wireless local area network is becoming more and more popular, and has become the first choice for establishing a wireless local area network. But the signal coverage range of a common WiFi access point is: about 50-100 meters indoors; about 100-150 meters outdoors. [0003] In order to expand the coverage of WiFi signals, the main methods currently adopted by the industry include: increasing the radiation power of WiFi devices. [0004] However, increasing the radiation power of WiFi devices has certain disadvantages, because WiFi devices use the ISM operating frequency band, which itself limits the increase in radiation power, so the method of increasing the radiation power of WiFi devices and expanding the coverage of WiFi signals is adopted Inadequate. [0005] Meanwhile, in the network deployment method in the prior art, th...

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Problems solved by technology

[0004] However, increasing the radiation power of WiFi devices has certain disadvantages, because WiFi devices use the ISM operating frequency band, which itself limits the increase in radiation power, so the method of increasing the radiation power of WiFi devices and expanding the coverage of WiFi signals is adopted Inadequate

[0005] At the same time, in the network deployment method of the prior art, the communication capacity of the remote access point is fixed, so it is inconvenient to allocate and reconfigure the communication capacity

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