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Method and device for processing ODUk frames

A frame header, consistent technology, applied in the field of communication, can solve the problem of not providing multiple ODUk frame alignment methods, etc., to save resources, reduce complexity, and improve efficiency.

Active Publication Date: 2012-03-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] There is no method for aligning multiple ODUk frames in the prior art

Method used

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  • Method and device for processing ODUk frames
  • Method and device for processing ODUk frames
  • Method and device for processing ODUk frames

Examples

Experimental program
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Embodiment Construction

[0039] During the data transmission process of the system, user services are first mapped to multiple low-order ODUk frames according to high and low bytes, and then mapped to high-order ODUk frames. Due to different mapping and demapping paths, and each path is independent of each other, when the low-order ODUk that finally carries customer services is demapped from the high-order ODUk, the frame header will not be aligned. If the low-order ODUk carrying the customer service is not aligned, the customer service cannot be restored.

[0040] In order to achieve alignment, it is necessary to find a starting point for alignment. Since customer services are mapped to ODUk frames at the same time, as long as the frame headers of each ODUk are aligned during mapping (ODUk is the frame structure defined in G.709, The frame header is used to indicate the beginning of the frame in the frame structure. When the customer service is mapped to multiple ODUk, as long as the frame headers of...

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Abstract

The invention provides method and device for processing ODUk frames. The method comprises the steps as follows: in the detection of the ODUk frames, when detecting a frame header of one ODUk frame is detected, the ODUk frame is subjected to mapping resolution; data generated by the mapping solution are cached; and according to whether the cached data reach the set quantity, the data are read or not. With the method and the device, a plurality of ODUk frames can be aligned, and the business of users can be restored correctly, thereby reducing the complication of design, enhancing the efficiency and saving resources.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for processing ODUk frames in an OTN system. Background technique [0002] As the types of customer services and transmission capacity continue to increase, transmission equipment needs to be able to flexibly support user services to be mapped to multiple low-order optical channel data unit (ODUk) frames at the same time, k can be defined as 0, 1, 2, 3. .. and other integers are used to meet the needs of service transmission capacity. [0003] During the data transmission process of the system, user services are first mapped to multiple low-order ODUk frames according to the high and low bytes. These low-order ODUk frames adopt a unified frame format, and then are mapped to high-order ODUk. Demapping paths, and each path is independent of each other, then when the low-order ODUk that finally carries customer services is demapped from the high-order ODUk, the frame h...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04J3/16
Inventor 江小炜杜凯王春光阮景林
Owner ZTE CORP
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