Method for sharing optical fiber for cloud-based wired and wireless access network, and system and apparatus for same

摘要

A system for sharing an optical fiber for a cloud-based wired and wireless access network, includes: a centralization device to generate summing signals by respectively summing multi-channel optical signals input from a wireless donor unit group and by summing multi-channel wired signals input from a wired donor unit group or generate wavelength-converted signals by wavelength-converting the multi-channel optical signals or the multi-channel wired signals, multiplex the summing signals or the wavelength-converted signals, and distribute the summing signals or the wavelength-converted signals to a plurality of devices connected to the centralization device via a shared optical fiber; and a distribution device group to generate corresponding optical signals by demultiplexing the summing signals or the wavelength-converted signals in units of wavelengths, and transmit the corresponding optical signals or the multi-channel wired signals to a wireless remote unit group and/or a wired remote unit group via a preset optical fiber.

主权项

1. A system for delivering uplink signals and downlink signals between a plurality of donor units and a plurality of remote units in cloud-based radio access network (C-RAN), the system comprising:
a centralization device connected to the plurality of donor units; and a plurality of distribution devices, each distribution device connected to a respective subset of the plurality of remote units, wherein the centralization device and the plurality of distribution devices are interconnected through optical fibers forming an optical ring network, wherein the centralization device is configured to
receive a plurality of downlink signals from the plurality of donor units andoptically transmit the plurality of downlink signals to the plurality of distribution devices at respective wavelengths assigned to the each distribution devices, and said each distribution device is configured to
receive a plurality of uplink signals from the respective subset of the plurality of remote units andoptically transmit the plurality of uplink signals to the centralization device at the assigned wavelengths, and wherein the plurality of donor units includes a plurality of wireless donor units and a plurality of wired donor units, and the plurality of remote units include a plurality of wireless remote units and a plurality of wired remote units, wherein the centralization device comprises a first transmission rate converter configured to
receive downlink signals from a part of the plurality of donor units at low transmission rate,process the received downlink signals to generate summing signals, each summing signal carrying at least two downlink signals, andconvert summing signals at different wavelengths to generate optical summing signals at high transmission rate,wherein the first transmission rate converter comprisesa first wireless transmission rate converter configured to
receive downlink signals from a part of the plurality of wireless donor units, andprocess the received downlink signals to generate summing signals, andconvert the summing signals at different wavelengths to generate optical summing signals, anda first wired transmission rate converter configured to
receive downlink signals from a part of the plurality of wired donor units,process the received downlink signals to generate summing signals, andconvert the summing signals at different wavelengths to generate optical summing signals.