Multi-Channel Coded Bit Sequences for Radio Reliability

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Solution Overview

Problem

Existing communication technologies, such as PDCP duplication and erasure code application in integrated access and backhaul, improve communication reliability but significantly reduce frequency utilization efficiency, leading to suboptimal overall performance.

Innovation Solution

A communication device generates multiple bit sequences with different contents using error correction coding methods and distributes them across multiple channels, maintaining reliability while enhancing frequency utilization efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If packet duplication is used to improve communication reliability, then reliability is improved, but frequency utilization efficiency is remarkably reduced

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidfrequency utilization efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The invention divides the original data into multiple segments and applies different error correction coding methods to each segment, creating multiple coded bit sequences. These segments are then distributed across multiple channels, allowing the system to achieve both reliability through redundancy and frequency utilization efficiency by transmitting different coded versions rather than duplicating identical data.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the coding parameters by applying different error correction coding methods (such as different code rates, coding schemes, or redundancy levels) to different segments of the same data. This parameter variation allows the system to optimize for both reliability and spectral efficiency, as different coded versions can be more efficiently packed into available frequency resources while still providing error correction capabilities.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the same data is transmitted through multiple channels, then communication reliability is improved, but frequency utilization efficiency is remarkably reduced

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidfrequency resource waste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

Instead of creating exact copies of the same data for multiple channels, the invention creates coded variations of the original data through error correction coding. These coded copies contain the same information content but differ in their bit sequences and redundancy structures, allowing more efficient use of frequency resources while maintaining the ability to recover the original data through any successful channel reception.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS12355564B2Communication device, communication method, and communication system
Publication Date: 2025.07.08 SONY GROUP CORP
  • US12355564B2 patent drawing
  • US12355564B2 patent drawing
  • US12355564B2 patent drawing

AI summary

A communication device performs radio communication by using a plurality of channels, and includes: a generation unit that generates a plurality of bit sequences having different contents by applying predetermined coding processing based on a predetermined error correction coding method to a transmission data sequence; and a distribution unit that distributes the plurality of bit sequences to the plurality of channels.