Communication Apparatus Packet Coding Discriminator Reliability Efficiency

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing communication technologies face a trade-off between improving communication reliability and maintaining frequency utilization efficiency, as methods like PDCP duplication enhance reliability but reduce efficiency.

Innovation Solution

A communication apparatus that includes a discriminator to determine whether to execute packet coding, a generator to create encoded bit sequences from transmission data, and a distributor to send these sequences to multiple channels, thereby optimizing both reliability and 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 significantly reduced

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

Solution Approach 1:

The invention segments the transmission data into multiple codeblocks and applies different coding schemes to different segments. Some codeblocks use packet duplication for reliability, while others use single transmission with enhanced coding for efficiency, resolving the contradiction between reliability and frequency utilization efficiency through selective application of transmission strategies.

Inventive Principle:
Principle #1Segmentation

2Productivity

If encoding is performed in units of packets to improve frequency utilization efficiency, then frequency utilization efficiency is improved, but communication reliability is reduced

Engineering Contradiction:
Improvefrequency utilization efficiencyVSAvoidcommunication reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The invention applies different coding qualities to different parts of the data transmission. Critical data segments receive enhanced protection through packet duplication and robust coding, while less critical segments use more efficient single-transmission coding, achieving local optimization that balances overall reliability and frequency utilization efficiency.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention combines multiple coding approaches (packet duplication, single transmission with enhanced coding, and selective retransmission) into a composite transmission strategy. This composite approach leverages the strengths of each method to achieve both improved frequency utilization efficiency and maintained communication reliability.

Inventive Principle:
Principle #40Composite materials

3Reliability

If the same data is transmitted on multiple channels to improve reliability, then reliability is improved, but the same data redundancy reduces frequency utilization efficiency

Engineering Contradiction:
Improvecommunication reliabilityVSAvoiddata redundancy
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The invention applies packet duplication selectively to only those codeblocks that require enhanced reliability, rather than duplicating all data. This partial application of duplication reduces unnecessary redundancy while maintaining reliability for critical data segments, resolving the contradiction between reliability improvement and redundancy reduction.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS20250175281A1Communication apparatus, communication method, and communication system
Publication Date: 2025.05.29 SONY GROUP CORP
  • US20250175281A1 patent drawing
  • US20250175281A1 patent drawing
  • US20250175281A1 patent drawing

AI summary

A communication apparatus includes a discriminator that determines whether or not to execute packet coding for generating a plurality of encoded bit sequences having different contents from one transmission data sequence, according to a predetermined condition, a generator that generates a plurality of bit sequences from one transmission data sequence using the packet coding in a case where it is determined that the packet coding is to be performed, and generates one or a plurality of bit sequences from one transmission data sequence without using the packet coding in a case where it is determined that the packet coding is not to be performed, and a distributor that distributes the plurality of bit sequences to a plurality of channels in a case where the plurality of bit sequences has been generated from the one transmission data sequence.