Method and apparatus for transferring c-value in flexe overhead frame

By utilizing the regular sequence changes of C values ​​in the FlexE protocol to receive and send multiple FlexE overhead frames, the problem of unstable C value transmission when the FlexE protocol code block is modified to a 257 code block is solved, thus realizing reliable C value transmission and accurate switching of the client calendar.

WO2026056279A1 Publication Date: 2026-03-19ZTE CORP
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Patent Information

Application Number
PCT/CN2025/091340
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-09-13
Filing Date
2025-04-25
Publication Date
2026-03-19

AI Technical Summary

Technical Problem

When the FlexE protocol code block is modified to the 257 code block, the existing technology cannot reliably transmit the C value, causing most judgment principles to fail and making it impossible to accurately determine the switching of the customer's calendar.

Method used

By receiving and sending multiple FlexE overhead frames, utilizing the regular sequence changes of C values, the correct C value is obtained and determined. The FlexE overhead frame containing the C value of the client calendar is switched according to the regular sequence of C values. This method and apparatus employs a C value transmission method based on regular sequence changes.

Benefits of technology

It ensures reliable transmission of the C value when the FlexE protocol code block is modified to a 257 code block, thus ensuring accurate switching of the customer's calendar and improving the reliability of transmission.

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Abstract

Provided in the embodiments of the present disclosure are a method and apparatus for transferring a C-value in a FlexE overhead frame. The method comprises: receiving a plurality of FlexE overhead frames, wherein C-values carried in the plurality of FlexE overhead frames change according to a regular sequence; acquiring the C-values in the plurality of FlexE overhead frames; and on the basis of a correct C-value in at least one FlexE overhead frame and the regular sequence of the C-values, determining a FlexE overhead frame on which a C-value indicating the switching of a client calendar is located. By means of the present disclosure, the problem of how to reliably transfer a C-value when a FlexE protocol code block is modified into a 257b code block is solved.
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