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Base band migration system for wireless fronthaul of passive optical network

A passive optical network and migration system technology, which is applied in the field of baseband migration based on time division wavelength division multiplexing passive optical network wireless fronthaul, can solve problems such as high energy consumption, inability to meet future access network capacity requirements, and low efficiency, etc. To achieve the effect of easy centralized processing, easy upgrade and transformation, and improved resource utilization

Active Publication Date: 2014-09-24
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Due to the shortcomings of low efficiency and high energy consumption, the existing macro base station deployment scheme can no longer meet the capacity requirements of the future access network. In order to further improve the utilization rate of system resources and meet the requirements of high-bandwidth business development, it is necessary to improve the deployment scheme of wireless base stations , PON access mode and wavelength resource scheduling mechanism

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  • Base band migration system for wireless fronthaul of passive optical network

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0023] The baseband migration system based on time division wavelength division multiplexing passive optical network (TWDM-PON) wireless fronthaul provided by the present invention makes full use of the low-cost and high-efficiency radio remote unit (RRU), and baseband processing unit (BBU) In the case of separation, high-efficiency and high-speed signal coverage is carried out in the area where the user is located, which improves the low base station coverage and low downlink rate caused by...

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Abstract

The invention discloses a base band migration system for wireless fronthaul of a passive optical network. The system comprises a base band processing unit (BBU), radio remote units (RRU) and the passive optical network, wherein the passive optical network is a passive optical fiber net (TWDM-PON) based on time and wavelength division multiplexing, the base band wavelength of the passive optical network is migratory, the BBU is arranged in a central apparatus room and used for processing base band signals and sending the signals to the RRUs of each remote node through the TWDM-PON, the RRUs convert the signals into electric radio frequency signals which are then amplified and output, and the BBU and the RRUs are separated. The base band migration system is low in cost, high in speed, efficiency, power budget and capacity, and large in transmission distance.

Description

technical field [0001] The present invention relates to the technical field of optical communication, in particular to a baseband migration method based on time division wavelength division multiplexing passive optical network (TWDM-PON) wireless fronthaul. Background technique [0002] With the large-scale development of wireless access networks, optical fiber access networks, and Internet services, users' demand for bandwidth is getting higher and higher, and the system capacity of access networks needs to be expanded urgently, and the improvement of system resource utilization is imminent. Due to its low efficiency and high energy consumption, the existing macro base station deployment scheme can no longer meet the capacity requirements of future access networks. In order to further improve system resource utilization and meet the requirements of high-bandwidth business development, it is necessary to improve the deployment scheme of wireless base stations , the access mo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04J14/02
Inventor 杜维嘉刘源郭梓栋毕美华何浩胡卫生
Owner SHANGHAI JIAO TONG UNIV
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