Interference Cancellation Parameter Acquisition for Cell Measurement

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing mechanisms for cell selection and handover in non-orthogonal multiple access systems do not consider interference cancellation, leading to suboptimal measurement and reporting processes.

Innovation Solution

A device with an acquisition unit to gather parameters related to interference cancellation and a control unit to perform measurement or measurement reporting based on these parameters, allowing for informed cell selection and handover decisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If interference cancellation is performed on the user side, then communication quality is improved, but measurement reporting does not reflect the actual cell availability leading to suboptimal cell selection

Engineering Contradiction:

Improvecommunication qualityVSAvoidcell selection adaptability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The base station performs preliminary actions by determining measurement parameters (such as offset values or measurement thresholds) based on the user's interference cancellation capability before the user performs measurement reporting. This allows the measurement reporting to be adjusted in advance to reflect the actual communication quality when interference cancellation is applied, enabling more accurate cell selection and handover decisions.

Inventive Principle:

Principle #10Preliminary action

2Device complexity

If measurement reporting is performed without considering interference cancellation, then the existing mechanism is simple, but the measurement accuracy does not reflect actual communication conditions

Engineering Contradiction:

Improvemeasurement mechanism complexityVSAvoidcell measurement accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The invention changes the measurement parameters (such as adding offset values or adjusting thresholds) based on the user's interference cancellation capability. This allows the measurement reporting to accurately reflect communication quality under interference cancellation conditions without fundamentally changing the measurement mechanism structure, thus improving measurement precision while maintaining reasonable complexity.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If cells are selected based on traditional measurement reporting, then the selection process is straightforward, but the selected cells may not be optimal for users with interference cancellation capability

Engineering Contradiction:

Improvecell selection process simplicityVSAvoidcell communication capability

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The base station uses feedback about the user's interference cancellation capability to adjust measurement parameters and cell selection criteria. This feedback mechanism allows the cell selection process to remain straightforward from the user's perspective while enabling the network to make more informed decisions that optimize communication capability for users with interference cancellation features.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10764773B2Apparatus including an acquirer to acquire a parameter for a user relating to interference cancellation and a controller to perform measurement reporting of a cell in accordance with the parameter

Publication Date: 2020.09.01 SONY GROUP CORP

AI summary

[Object] To enable measurement or measurement to be performed in consideration of interference cancellation.[Solution] There is provided a device including: an acquisition unit configured to acquire a parameter for a user relating to interference cancellation; and a control unit configured to perform measurement or measurement reporting with respect to a cell in accordance with the parameter.