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Multichannel serialized frame positioning method and device based on ODU (Optical Data Unit) frames in OTN (Optical Transport Network) system

A multi-channel, serialized technology, applied in the direction of link quality-based transmission modification, transmission system, digital transmission system, etc., can solve the problems of high implementation cost, large circuit scale, and many resources, and reduce circuit power consumption. , reduce the design scale, the effect of high search accuracy

Active Publication Date: 2016-06-15
FENGHUO COMM SCI & TECH CO LTD
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Problems solved by technology

In this processing mode, although the processing efficiency is high, when the number of low-rate ODU frames contained in the high-rate ODU frame is relatively large, the circuit scale and resources required for parallel processing of the framing process are relatively large , high power consumption, which in turn makes the implementation cost high

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  • Multichannel serialized frame positioning method and device based on ODU (Optical Data Unit) frames in OTN (Optical Transport Network) system
  • Multichannel serialized frame positioning method and device based on ODU (Optical Data Unit) frames in OTN (Optical Transport Network) system

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] see figure 1 As shown, the embodiment of the present invention provides a multi-channel serialized framing method based on an ODU frame in an OTN system, including the following steps:

[0037] Step S1: Determine whether it is necessary to switch channels, if so, switch channels, and go to step S3; otherwise, do not switch channels, and go to step S2.

[0038] Wherein, the judgment in step S1 whether it is necessary to switch channels specifically includes the following steps: judging whether the channel number of the current undetermined frame is the same as the channel number of the previous fixed frame, if so, then it is not necessary to switch channels, otherwise, it is necessary to switch channels. Among them, when judging whether the channel number of the current pending frame is the same as the channel number of the pre...

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Abstract

The invention discloses a multichannel serialized frame positioning method and device based on ODU frames in an OTN system, and relates to the technical field of frame positioning in the OTN system. The method comprises following steps of judging whether a channel needs to be switched, if so, after switching the channel, reading the frame positioning process list of a current channel; determining the specific links of the current channel needing to be processed; or, doing not switch the channel; reading the frame positioning process list of the switched channel; determining the specific links of the switched channel needing to be processed; processing corresponding links according to the determined specific processing links; temporarily storing the processing data and state information of the corresponding links in a buffer; and updating the frame positioning process list of the current channel. According to the method and the device provided by the invention, the low speed ODU frames can be positioned in the OTN system; moreover, the circuit design scale is reduced; the circuit resource and circuit power consumption are reduced; and the realization cost is reduced.

Description

technical field [0001] The present invention relates to the technical field of framing in an OTN (Optical Transport Network, Optical Transport Network) system, in particular to a multi-channel serialized framing method and device based on an ODU (Optical Data Unit, Optical Data Unit) frame in an OTN system. Background technique [0002] In the OTN system, for the processing of low-rate ODU services, it is usually necessary to multiplex multiple low-rate ODU frames into one high-rate ODU frame, perform corresponding processing and then demultiplex into multiple low-rate ODU frames in the same way frame. During the entire process of multiplexing and demultiplexing, the low-rate ODU frame is processed as a whole as a part of the high-rate ODU frame, and the specific structure of the low-rate ODU frame is not concerned. This causes the frame header position of the low-rate ODU frame to be lost during the process of multiplexing and demultiplexing. Therefore, before processing t...

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Application Information

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IPC IPC(8): H04L1/00H04J3/16
CPCH04J3/1664H04L1/0007
Inventor 胡烽海增强朱齐雄戴莹春饶清文
Owner FENGHUO COMM SCI & TECH CO LTD
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