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ODU identification method for different mapping rates of OTN signal

An identification method and ODU technology, applied in multiplexing system selection devices, electrical components, transmission systems, etc., can solve problems such as limited applications, and achieve the effects of simple processing, strong adaptability, and high accuracy

Active Publication Date: 2021-06-15
电信科学技术第五研究所有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its technical solution is to group by JC information. This technical solution identifies specific scenarios and its application is limited.

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  • ODU identification method for different mapping rates of OTN signal
  • ODU identification method for different mapping rates of OTN signal
  • ODU identification method for different mapping rates of OTN signal

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing:

[0024] as attached figure 1 Shown, a kind of OTN signal different mapping rate ODU identification method of the present invention comprises:

[0025] Overhead information preprocessing: According to the JC information in the ODU4 OPUk overhead, obtain the number of ODUj structure objects mapped in ODU4, the logical TS with the largest number occupied by each structure object ODUj, and the GMP adjustment control information of each structure object ODUj; the GMP adjustment control information is used Remove padding blocks when ODU4 parses ODUj;

[0026] FAS TS location analysis: predict the FAS scanning location information of different ODUj through ODUk adjustment control information, and at the same time make strong judgment through iterative matching, and confirm the logical TS occupied by its structural objects according to the distribution law of FAS;

[0027] MFAS T...

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Abstract

The invention discloses an ODU identification method for different mapping rates of an OTN signal. The method comprises the following steps: preprocessing overhead information; carrying out FASTS position analysis; carrying out MFASTS position analysis; and analyzing the remaining TS. The method is based on the predicted line spacing scanning FAS and iterative matching, the universality is high, the accuracy is high, and the processing is relatively simple, wherein the mapped ODU0 / ODU1 / ODU3 can be effectively identified and processed not only in single but also blended manner, and the MFAS scanning matching design is carried out on the basis of FAS position determination; ODUj normative design is analyzed on the basis of combined residual TS; the method is suitable for relatively complex ODU2 recognition, and recognition of all different ODUj is supplemented; thus, the OTN line is effectively analyzed, the structure object mapped by the OTN can be identified under the condition that the OTNMSI information is invalid, and the method has very important application value.

Description

technical field [0001] The invention relates to a method for identifying ODUs with different mapping rates of OTN signals. Background technique [0002] According to the OTN (Optical Transport Network, Optical Transport Network) standard technical protocol description, the entire ODUk frame is a 4*3824 matrix block, and the first 14 columns of the first row are FAS (Frame Alignment Signal) / MFAS (MultiFrame Alignment Signal) / OTUk (Optical Transport Unit-k) overhead, and columns 15 and 16 are OPUkoverhead (optical channel payload unit k overhead). After 17 columns of the entire ODUk (Optical Data Unit-k, optical data unit) frame matrix block is an OPUk (Optical Payload Unit-k) payload (payload) area. For ODU4 (ODU: Optical Data Unit), columns 3817 to 3824 are fixed padding fields. The size of the FS (Fixed stuff, fixed filling) field, the depth of the MSI (Multiplex Structure Identifier, multiplexing structure identifier), the JC rate adjustment method, and the field role of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04L29/06
CPCH04Q11/0062H04Q11/0067H04L69/22
Inventor 雷红海钟良志康珑耀侯浩东
Owner 电信科学技术第五研究所有限公司