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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 OTN network connection monitoring and management cannot be realized

Active Publication Date: 2010-01-20
HUAWEI TECH CO LTD
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  • Claims
  • Application Information

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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

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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 accompanying 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 scheduling unit of the ODU1 / ODU2 / ODU3 signal, the received optical signal is converted into an electrical signal through photoelectricity, and after demapping processing, Adapt to a unified granular level, and perform asynchronous cross-connect scheduling processing in the same asynchronous cross-connect matrix based on the granular level.

[0114] During the adaptation process, if the rate of the signal is greater than the unified granular level, the current signal is decomposed into multiple signals so that the rate of each signal meets the unified granular level; if the signal rate is equal to the unified granular level At the granular level, the signal can be directly sent to the asyn...

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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 signal scheduling technology in optical transport network (OTN), in particular to a method and system for realizing signal scheduling in OTN. Background technique [0002] Optical Transport Hierarchy (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 to meet the large-capacity and coarse-grained scheduling requirements at the backbone network level, and adopts digital encapsulation technology. [0003] In order to realize data transmission in OTH, the International Telecommunication Union Standardization Department (ITU-T) G.709 proposes to define the optical data unit (ODUk), where k=1, 2, 3, as three levels of connection signals, the rates are respectively for: [0004] ODU1: 239...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04J14/00
Inventor 肖新邹世敏
Owner HUAWEI TECH CO LTD
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