Point Cell Transmission Grouping for Lower Wireless Control Load

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Solution Overview

Problem

Existing power concentration techniques for wireless communication, such as pointforming, do not always achieve high communication performance when applied to radio access networks due to excessive freedom in selecting transmission devices, leading to inefficiencies in control and processing load.

Innovation Solution

A system for efficiently selecting transmission devices by grouping them into groups based on predetermined criteria, allowing terminal devices to identify and connect with optimal groups for communication via point cells, reducing processing requirements and enhancing communication performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If power concentration technique (pointforming) is applied to radio access network, then spatial multiplex capability is improved, but control complexity and processing load increase excessively

Engineering Contradiction:
Improvespatial multiplex capabilityVSAvoidcontrol complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the radio access network into multiple transmission device groups, where each group is responsible for a specific point cell. This segmentation reduces the control complexity by dividing the overall system into manageable units, while still maintaining the spatial multiplex capability through coordinated operation of multiple groups.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a group dimension in addition to the traditional cell dimension. Instead of managing individual transmission devices or single cells, the system operates at the group level, adding a hierarchical dimension that simplifies control while enabling advanced spatial multiplexing through group coordination.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If transmission devices are selected freely for point cell formation, then communication performance is improved, but processing load and control overhead increase

Engineering Contradiction:
Improvecommunication performanceVSAvoidprocessing load
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs preliminary grouping of transmission devices into fixed groups before point cell formation. This preliminary action reduces the processing load during operation, as the system only needs to select among pre-defined groups rather than evaluating all possible device combinations in real-time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent assigns specific transmission device groups to specific point cells, creating localized responsibilities. Each group is optimized for its designated point cell, which improves communication performance through specialized configuration while reducing overall processing load by limiting the search space for device selection.

Inventive Principle:
Principle #3Local quality

3Productivity

If multiple transmission devices are coordinated for point cell formation, then frequency utilization efficiency is improved, but device complexity and coordination overhead increase

Engineering Contradiction:
Improvefrequency utilization efficiencyVSAvoidcoordination overhead
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple transmission devices into coordinated groups that operate together for point cell formation. This merging improves frequency utilization efficiency through coherent signal combination while managing coordination overhead by establishing fixed group structures with predefined relationships.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system enables high communication performance by efficiently selecting transmission devices, reducing processing load and improving frequency utilization efficiency, capacity, speed, reliability, and density.

Implementation Method 1

a technique of concentrating power at a specific point using a phase difference of a near field

Methodology Applied
Scientific EffectPhase difference:

Data Source

PatentEP4694274A1Terminal device, control device, communication method, and information processing method
Publication Date: 2026.02.11 SONY GROUP CORP
  • EP4694274A1 patent drawingFigure 1
  • EP4694274A1 patent drawingFigure 2
  • EP4694274A1 patent drawingFigure 3

AI summary

A terminal device performs communication via a point cell formed by two or more transmission devices among a plurality of transmission devices. The terminal device includes an acquisition unit that acquires information for identifying a transmission device group, and a communication control unit that executes processing related to the communication via the point cell based on the information acquired.