Communication system, related equipment and method

Abstract

The invention discloses a communication system, related equipment and a method. The communication system comprises CO equipment and a plurality of RRHs, the plurality of RRHs form a ring network through optical fibers, and the CO equipment is connected to the ring network; the CO equipment is used for modulating a baseband signal to N first optical carriers generated by the CO equipment to obtain N second optical carriers; the plurality of RRHs are used for receiving N second optical carriers and transmitting the N second optical carriers to the ring network through a first optical fiber, and any one of the plurality of RRHs is used for acquiring a target optical carrier from the received second optical carriers; and converting the target optical carrier into an electric signal, and transmitting the electric signal as a downlink signal. According to the embodiment of the invention, the all-optical communication system is realized through the layout of the optical devices on the architecture and the optical ring network topology mode, and the communication system has a self-healing protection function.

Description

technical field [0001] The present application relates to the communication field, and in particular to a communication system, related equipment and method. Background technique [0002] In the current mainstream form of wireless base stations, distributed base stations are the mainstream, and the wireless remote radio head (ramoteradio head, RRH) and baseband unit (baseband unit, BBU) are mainly deployed through remote radio. The interface between the BBU and the RRH is called the fronthaul interface. The fronthaul interface carries the traffic from the RRH to the BBU. There are many ways to carry the fronthaul traffic, such as common public radio interface (common public radio interface, CPRI) / enhanced common Public radio interface (enhanced common public radio interface, eCPRI) / radio over fiber (ROF), etc., these are to control traffic by adjusting function deployment. Moreover, different numbers of TRXs will also bring huge differences in fronthaul traffic. The change ...

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Problems solved by technology

[0005] However, the ROF base station only realizes the transmission of wireless signals on the optical fiber. Most of the parts except the transmission are still processed by electrical signals. The CO equipment will use key electrical components such as DAC and ADC. The processing method of electrical devices brings problems such as high cost, high power consumption, and limited bandwidth.

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