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Signal dispatching method and system in optical transmission network

A technology of signal scheduling and optical transport network, which is applied in the direction of optical multiplexing system, selection device of multiplexing system, multiplexing communication, etc. Problems such as ODU1/ODU2/ODU3 connection level functions not implemented

Active Publication Date: 2006-09-13
HUAWEI TECH CO LTD
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Problems solved by technology

[0037] The disadvantage of prior art 2 is that this technology is based on the scheduling of OTU1 / OTU2 / OTU3 signal transmission units, and does not realize the connection level function of ODU1 / ODU2 / ODU3, so the connection monitoring and management of OTN networks cannot be realized, and it is not a complete The OTN equipment unit only completes the scheduling function of OTU1 / OTU2 / OTU3
The asynchronous mapping of OTU1 / OTU2 / OTU3 has different filling methods, so the transmission units cannot communicate with each other, and can only form an independent OTN network of OTU1 or OTU2 or OTU3, which limits the OTN network networking

Method used

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  • Signal dispatching method and system in optical transmission network
  • Signal dispatching method and system in optical transmission network
  • Signal dispatching method and system in optical transmission network

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Embodiment Construction

[0112] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0113] The core idea of ​​the present invention is: on the basis of the existing high-speed asynchronous crossover technology, in order to unify the ODU1 / ODU2 / ODU3 signal scheduling unit, the received optical signal is converted into an electrical signal by photoelectricity, and after the demapping process is performed, Adapt to a unified granular level, and perform asynchronous cross scheduling processing in the same asynchronous cross matrix based on the granular level.

[0114] During the adaptation process, if the signal rate is greater than the unified particle level, the current signal is decomposed into multiple signals so that the rate of each signal meets the unified particle level; if the signal rate is equal to the unified particle level The signal can be directly sent to the asynchronous cross matrix for asynchronous cross scheduling after...

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Abstract

This invention discloses a signal dispacth method in an optical transmission network including: converting received signals to electric signals to be de-imaged and adapted to a unified particle grade to be processed with asynchronous cross dispatch in an asynchronous cross matrix. This invention also discloses a system including: a photoelectric conversion unit, a de-image unit, an adaptive device, in which, the asynchronous cross matrix receives optical signals to be converted into electric signals by the photoelectric conversion unit to be input into the de-image unit then enters into the adaptive device to be processed and output in a unified particle grade, then enters into the asynchronous cross matrix to be dispatched.

Description

Technical field [0001] The present invention relates to a signal scheduling technology in an optical transport network (OTN), in particular to a method and system for realizing signal scheduling in an OTN. Background technique [0002] Optical transmission system (OTH) technology is a new generation transmission system after Synchronous Digital Hierarchy (SDH) / Synchronous Optical Network (Sonet). The advantage of the OTN network is to meet the explosive development requirements of data bandwidth. It is a transparent transmission technology developed for the large-capacity and coarse-grained scheduling requirements of the backbone network level, and adopts digital encapsulation technology. [0003] In order to realize the data transmission in OTH, the International Telecommunication Union Standards Department (ITU-T) G.709 recommends defining the optical data unit (ODUk), where k=1, 2, 3, as three levels of connection signals, and the rates are respectively for: [0004] ODU1: 239...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04J14/00
Inventor 肖新邹世敏
Owner HUAWEI TECH CO LTD
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