Communication Device Frame Transfer Error Detection

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Solution Overview

Problem

In IEEE 802.1CB, the removal process for duplicate frames is performed after checking the consistency of data in the frame to avoid processing frames with errors as duplicates, which increases transfer delay.

Innovation Solution

A communication device with a communication unit, a transfer unit, an error detection unit, and a transfer disablement control unit that disables frame transfer if an error is detected, allowing for immediate data transfer without waiting for de-duplication processes to complete.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the removal process for duplicate frames is performed after checking the consistency of data in the frame, then the reliability of frame processing is improved, but the transfer delay increases

Engineering Contradiction:

Improveframe processing reliabilityVSAvoidtransfer delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the frame processing into two independent parts: error detection (performed on all frames) and de-duplication (performed only on frames without errors). This segmentation allows reliable error checking to proceed in parallel with fast de-duplication for clean frames, resolving the contradiction between reliability and transfer delay.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary error detection on all received frames before proceeding to the de-duplication process. By checking for errors first and filtering out corrupted frames, the system prepares a clean set of frames for de-duplication, ensuring reliability while enabling parallel processing that reduces overall delay.

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If the de-duplication process waits for error checking to complete, then processing accuracy is improved, but the efficiency of frame reception decreases

Engineering Contradiction:

Improveprocessing accuracyVSAvoidframe reception efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent divides the processing workflow into segmented stages: error detection stage and de-duplication stage. Frames that pass error detection are immediately forwarded to de-duplication in parallel, while frames with errors are handled separately. This segmentation maintains processing accuracy through systematic error checking while dramatically improving frame reception efficiency through parallel execution.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary error detection mechanism that acts as a filter between frame reception and de-duplication. This intermediary checks frame integrity and routes frames appropriately, ensuring that de-duplication operates on valid frames (maintaining accuracy) while enabling simultaneous processing of multiple frames (improving efficiency).

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12218752B2Communication device, processor, communication method, and computer program product

Publication Date: 2025.02.04 KK TOSHIBA

AI summary

According to an embodiment, a communication device includes a communication unit, a transfer unit, an error detection unit, and a transfer disablement control unit. The communication unit receives a frame. The transfer unit transfers the frame to a frame storage unit of a transfer destination. The error detection unit detects an error in the frame. The transfer disablement control unit disables transfer by the transfer unit when an error is detected by the error detection unit.