Chip-to-Chip FEC Conversion Using Concatenated Outer Encoding

Solution Overview

Problem

Existing FEC code type conversion processes in data transmission increase delay and power consumption, affecting efficiency.

Innovation Solution

A method and apparatus that encode a first data stream using a concatenated FEC code type without first decoding, combining multiple FEC code types to form a second data stream, thereby simplifying the conversion process and reducing delay and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If FEC code type conversion is performed by decoding and re-encoding, then the FEC code type can be changed to adapt to different transmission requirements, but the delay and power consumption increase

Engineering Contradiction:

ImproveFEC code type adaptabilityVSAvoidconversion delay

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent segments the FEC code conversion process into two independent parts: the original FEC encoding (performed by the sending device) and an additional outer FEC encoding (performed by the transponder). This segmentation eliminates the need for complete decoding and re-encoding, as only an additional encoding layer is added to the already-encoded data stream, thereby reducing conversion delay while maintaining adaptability to different transmission requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sending device performs preliminary FEC encoding on the data before transmission. The transponder then adds an outer FEC encoding layer without needing to decode the original data first. This preliminary action by the sending device enables the transponder to perform only the necessary additional encoding, reducing the overall conversion time and delay.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If FEC code type conversion is performed by decoding and re-encoding, then the FEC code type can be changed to adapt to different transmission requirements, but the power consumption increases

Engineering Contradiction:

ImproveFEC code type adaptabilityVSAvoiddevice power consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the FEC code conversion process into two independent parts: the original FEC encoding (performed by the sending device) and an additional outer FEC encoding (performed by the transponder). This segmentation eliminates the need for complete decoding and re-encoding, as only an additional encoding layer is added to the already-encoded data stream, thereby reducing conversion delay while maintaining adaptability to different transmission requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sending device performs preliminary FEC encoding on the data before transmission. The transponder then adds an outer FEC encoding layer without needing to decode the original data first. This preliminary action by the sending device enables the transponder to perform only the necessary additional encoding, reducing the overall conversion time and delay.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If traditional FEC code type conversion is used, then code adaptability is achieved, but data transmission efficiency decreases due to increased delay and power consumption

Engineering Contradiction:

ImproveFEC code type adaptabilityVSAvoiddata transmission efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent segments the FEC code conversion process into two independent parts: the original FEC encoding (performed by the sending device) and an additional outer FEC encoding (performed by the transponder). This segmentation eliminates the need for complete decoding and re-encoding, as only an additional encoding layer is added to the already-encoded data stream, thereby reducing conversion delay while maintaining adaptability to different transmission requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sending device performs preliminary FEC encoding on the data before transmission. The transponder then adds an outer FEC encoding layer without needing to decode the original data first. This preliminary action by the sending device enables the transponder to perform only the necessary additional encoding, reducing the overall conversion time and delay.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3958485B1Data transmission method and device

Publication Date: 2026.01.28 HUAWEI TECH CO LTD

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AI summary

Embodiments of this application disclose a data transmission method. The method includes: A first chip receives a first data stream sent by a second chip, where the first data stream is a data stream obtained through encoding by using a first forward error correction (FEC) code type; and the first chip encodes the first data stream at least once, to obtain a second data stream, where the second data stream is a concatenated FEC code stream obtained through encoding by using at least the first FEC code type and a second FEC code type. It can be learned that an FEC code type conversion process is simplified, both a delay and device power consumption that are required during FEC code type conversion are reduced, and data transmission efficiency is improved. In addition, the embodiments of this application further disclose a data transmission apparatus.