Ethernet Check Code Processing for Idle Block Insertion

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Solution Overview

Problem

In Ethernet data transmission, the insertion or deletion of idle blocks leads to inconsistencies in check codes generated at the sender and receiver, resulting in high check error probabilities and poor transmission quality evaluation accuracy.

Innovation Solution

A check code processing method that integrates check bits from each byte of a code block to generate a first sequence, allowing for consistent check code calculation across transmission cycles, even when idle blocks are inserted or deleted, by using Bit Interleaved Parity (BIP) check codes and Operation Administration and Maintenance (OAM) blocks to transmit check codes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If idle blocks are inserted or deleted in Ethernet data transmission, then data transmission flexibility is improved, but check code consistency deteriorates

Engineering Contradiction:

Improvedata transmission flexibilityVSAvoidcheck code consistency

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a special check code block as an intermediary element that carries check code information independently of the data blocks. This mediator allows the receiver to verify data integrity without being affected by the insertion or deletion of idle blocks, thus resolving the contradiction between transmission flexibility and check code consistency.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the check code calculation by applying it only to non-idle blocks and excluding idle blocks from the check code generation process. This segmentation allows the check code to remain consistent even when idle blocks are dynamically inserted or deleted, maintaining reliability while preserving transmission flexibility.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If idle blocks are inserted or deleted, then transmission cycle variation is improved, but check error probability increases

Engineering Contradiction:

Improvetransmission cycle variationVSAvoidcheck error probability

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies check code calculation in advance to all non-idle blocks before transmission, generating a check code that accounts for all actual data blocks. This preliminary action ensures that even if idle blocks are later inserted or deleted, the check code remains valid and check error probability does not increase.

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If check code is calculated including idle blocks, then check coverage is improved, but check code stability deteriorates

Engineering Contradiction:

Improvecheck coverageVSAvoidcheck code stability

Core Design Contradiction:

Measurement precisionVSStability of the object's composition

Solution Approach 1:

The patent applies different quality rules to different parts of the data stream: non-idle blocks are included in check code calculation while idle blocks are excluded. This local differentiation ensures that check coverage maintains precision for actual data while stability is preserved by excluding the variable idle blocks from the check code generation.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11546088B2Check code processing method, electronic device and storage medium

Publication Date: 2023.01.03 CHINA MOBILE COMM GRP CO LTD

AI summary

Disclosed in embodiments of this disclosure are a check code processing method, an electronic device and a storage medium. The check code processing method comprising: performing operations on m bits of the nth byte of a code block to obtain the nth bit of a first sequence; and performing operation on the first sequence of the code block with a same transmission period to obtain a check code.