Optical and Wireless Converged Access Network Based on Periodic Arrayed Waveguide Grating

Abstract

An optical and wireless convergence access network based on periodic array waveguide grating comprises a local side, a feeder optical fiber, an optical distributed network pool based on second light splitting, several distributed optical fibers, several wireless user units and several optical network units. The local side is connected to the optical distributed network pool through the feeder optical fiber. A part of a primary optical splitting system of the optical distributed network pool is connected to the wireless user units, and the other part of the primary optical splitting system is connected with each optical network unit through a secondary optical splitting unit. As for cable users, a local light wave pool realizes light wave resource transfer through a local virtual base-band light wave combined exchange pool. As for wireless Fronthaul users, a local virtual base station cluster realizes modulation and demodulation of radio-frequency signals through the light wave pool and is then connected to the virtual base-band light wave combined exchange pool through the light wave pool. As for wireless Backhaul users, uplink and downlink data are outputted to the light wave pool through the virtual base-band light wave combined exchange pool. According to the invention, upgrading and reconstruction are easily carried out based on present networks, and costs are low.

Description

technical field [0001] The present invention relates to the technical field of optical communication, in particular to an optical and wireless fusion access network based on a periodic arrayed waveguide grating. Background technique [0002] With the emergence of high-performance wireless terminal devices (smart phones, tablet computers, etc.) and the widespread promotion of a large number of multimedia services such as videophones, high-definition video, interactive games, and data sharing, users' demand for wireless access bandwidth has increased dramatically. At the same time, it is a mainstream development direction of PON to support family, enterprise, wireless and other full-service access. Therefore, how to realize a large amount of high-bandwidth wireless data access by means of the framework of the optical access network system, and then realize the fusion of optical and wireless data is the mainstream direction of the current access network system. [0003] In ord...

AI Technical Summary

Problems solved by technology

The existence of this effect will require more resource allocation on the one hand, and on the other hand will cause a waste of resources, that is, irrational resource allocation will appear

However, this problem has not been fully considered in the UniPON system

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