A Optical Access Network System Based on Multilayer Ring Structure

Abstract

The invention discloses an optical access network system based on a multi-layer ring structure. The optical access network system includes an optical link terminal layer, a first layer of remote node layer, a second layer of remote node layer and an optical network unit layer; wherein, the optical link terminal layer includes a plurality of optical link terminal units; the first layer of remote node layer includes a plurality of first layer remote nodes, and each first layer of remote nodes is interconnected to form a ring; the second layer The remote node layer includes a plurality of second-layer remote nodes, and each second-layer remote node is interconnected to form a ring; the optical network unit layer includes a plurality of optical network units, and each of the optical network units is interconnected to form a ring. The present invention is based on the optical access network system of the multi-layer ring structure, by combining the remote nodes of the first layer in the remote node layer of the first layer, the remote nodes of the second layer in the remote node layer of the second layer and the Each optical network unit in the optical network unit layer is interconnected to form a ring, which can effectively realize the flexible selection of transmission links and improve the energy efficiency, robustness and flexibility of the network.

Description

technical field [0001] The invention relates to the technical field of network connection, in particular to an optical access network system based on a multi-layer ring structure. Background technique [0002] With the rapid development of the information industry, the communication network as its pillar has been greatly improved in recent years in terms of network coverage, transmission rate, and network scale. However, the construction of a large number of high-speed communication networks also brings huge energy consumption. In 2010, my country's annual network energy consumption has reached one-third of the annual power generation of the Three Gorges Project. At the same time, the "Twelfth Five-Year Plan for the Communication Industry" also clearly listed network energy saving and consumption reduction as one of the key points of network development. From the perspective of the long-term development of the information technology industry, the work of energy saving and ...

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Problems solved by technology

[0004] However, because the existing optical access network structure is limited by the network rate and access capacity, it cannot meet the high-speed, large access capacity, and long-distance access requirements of the future optical access network.

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