IDMA Interleave Control for Higher-Capacity Wireless Links

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Solution Overview

Problem

Current wireless communication technologies related to IDMA require further performance improvement to effectively manage increased data traffic and interference in 5G wireless communication systems.

Innovation Solution

A wireless communication device and method that employs advanced interleave setting and deinterleave setting techniques, including adaptive interleave length and pattern control, to enhance signal processing and resource allocation in IDMA systems, optimizing communication capacity and reducing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If IDMA is applied to reduce inter-cell interference and intracell interference, then communication reliability is improved, but device complexity increases due to advanced interleave setting and deinterleave setting requirements

Engineering Contradiction:
Improvecommunication reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting interleave lengths and patterns based on communication conditions. The base station and terminal device adaptively modify interleave parameters to optimize interference cancellation performance while managing computational complexity, resolving the contradiction between reliability improvement and device complexity increase.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If adaptive interleave length and pattern control is implemented, then communication capacity increases, but processing time increases due to advanced signal processing requirements

Engineering Contradiction:
Improvecommunication capacityVSAvoidprocessing time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by pre-configuring interleave patterns and lengths based on channel conditions and traffic requirements. The base station prepares multiple interleave configurations in advance, allowing the system to quickly adapt to changing conditions without extensive real-time processing, thus increasing communication capacity while minimizing processing time delays.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3200369B1Wireless communication device, wireless communication method, and computer program using IDMA (interleave division multiple access)
Publication Date: 2022.08.31 SONY GROUP CORP
  • EP3200369B1 patent drawingFigure 1~2
  • EP3200369B1 patent drawingFigure 3
  • EP3200369B1 patent drawingFigure 4

AI summary

[Object] To provide a wireless communication device, a wireless communication method and a program capable of contributing to improvement of wireless communication technology related to IDMA. [Solution] Provided is a wireless communication device including: a wireless communication unit that performs wireless communication using interleave division multiple access (IDMA) with another wireless communication device; and a controller that controls an interleave length in an interleave process for IDMA by the wireless communication unit.