WDM sensing protection system and sensing protection method applied to 5G fronthaul

Abstract

The invention discloses a wavelength division multiplexing perception protection system and perception protection method applied to 5G forward transmission. Active wavelength division equipment is high in manufacturing cost, large in power consumption and difficult to take electricity, and passive wavelength division equipment lacks management means and has no backup protection. The system comprises an AAU side device, a main optical fiber, a standby optical fiber and a DU side device. The AAU side device comprises an AAU color light module, an AAU side passive wavelength division multiplexer,a main optical splitter and an AAU side optical link monitoring module. The AAU side optical link monitoring module comprises an AAU acquisition module and an AAU control module. The DU side device comprises a DU color light module, a DU side passive wavelength division multiplexer, an optical switch, a DU side optical link monitoring module and a DU side monitoring management module. The DU sideoptical link monitoring module comprises a DU acquisition module and a DU control module. According to the invention, the problem of weak fault sensing capability of the optical fiber link of the passive optical multiplexing network is solved, and the real-time monitoring of key network nodes is realized.

Description

technical field [0001] The invention belongs to the technical field of 5G fronthaul communication, and specifically relates to a semi-active wavelength division multiplexing sensing protection system applied to 5G fronthaul. The wavelength division multiplexing system performs aggregation transmission, integrates the optical network perception module, realizes the optical link monitoring function, and protects the aggregation optical fiber to form a unified management and control perception protection system and its perception protection method. Background technique [0002] At present, the LTE era of wireless communication has been fully popularized, and 5G has entered the quasi-commercial stage. What is different from the past is that 5G is no longer just an increase in network speed from 2G to 3G to 4G, but to expand communication between people to connect everything, and gradually create a fully mobile and fully connected digital society. It can even be said that 4G is ...

AI Technical Summary

Problems solved by technology

In the 5G era, a huge number of base stations means high construction investment, site support, site leasing and maintenance costs

Among them, active WDM equipment has high cost, high power consumption, and difficulty in obtaining power, while passive WDM equipment has problems such as lack of management methods, no backup protection, and weak perception of fiber link failures.

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