Communication Control Device Position-Based Statistical Resource Allocation

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Solution Overview

Problem

In cellular communication systems, reducing the amount of control information transmitted between base stations and terminal apparatuses is desirable to maximize wireless resources, but existing methods struggle to minimize channel state information (CSI) and effectively utilize statistical data for resource assignment, especially due to varying channel states across different positions within a cell.

Innovation Solution

The system generates statistical information related to channel states based on position within a cell, using channel-related and position-related data to create region-specific statistical information, which reduces the need for frequent CSI updates and allows for more efficient wireless resource assignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If channel state information (CSI) is transmitted frequently to maintain accurate resource assignment, then resource allocation accuracy is improved, but the amount of control information increases reducing available wireless resources

Engineering Contradiction:
Improvechannel state information accuracyVSAvoidamount of control information
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The system pre-calculates and stores statistical information about channel states for different positions within the cell before resource assignment occurs. This preliminary preparation allows the base station to quickly determine appropriate resources without requiring frequent real-time CSI transmissions, thereby reducing control information overhead while maintaining assignment accuracy

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of transmitting actual real-time CSI data frequently, the system uses pre-collected statistical information that copies the essential characteristics of channel states. This statistical representation captures the necessary channel behavior patterns without requiring continuous transmission of detailed channel measurements

Inventive Principle:
Principle #26Copying

2Quantity of substance

If statistical information is used for resource assignment, then control information is reduced, but the system cannot adapt to varying channel states across different positions within a cell

Engineering Contradiction:
Improveamount of control informationVSAvoidadaptability to position-specific channel states
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The cell is divided into multiple positions or regions, and separate statistical information is prepared for each position. This segmentation allows the system to account for position-specific channel characteristics while still using pre-calculated statistical data, maintaining adaptability without requiring real-time CSI transmissions for each user

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies different statistical information to resource assignments based on the specific position of the terminal within the cell. Each position has its own tailored statistical characteristics that reflect local channel conditions, enabling position-specific optimization while reducing overall control information requirements

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3018923B1Communication control device and communication control method
Publication Date: 2021.08.04 SONY GROUP CORP
  • EP3018923B1 patent drawingFigure 1
  • EP3018923B1 patent drawingFigure 2
  • EP3018923B1 patent drawingFigure 3

AI summary

[Object] Tobe able to further reduce the amount of the control information transmitted/received within the cell [Solution] Provided is a communication control apparatus including: an acquisition unit configured to acquire channel-related information related to a channel state of a terminal apparatus located within a cell, and position-related information related to a position of the terminal apparatus; and a generation unit configured to generate statistical information related to the channel state according to the position in the cell on the basis of the channel-related information and the position-related information. The statistical information is information used for assignment of a wireless resource in the cell.