Resolving Transmit Receive Beam Conflicts in Self-Interference Measurement

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Solution Overview

Problem

Current wireless communication systems face challenges in configuring self-interference measurements due to conflicts between configured transmit and receive beams, which can lead to unsupported self-interference measurement configurations and increased self-interference, particularly in full duplex communication scenarios.

Innovation Solution

A method and apparatus are provided to determine and resolve conflicts between configured transmit and receive beams by prioritizing self-interference measurement types and canceling specific transmissions or measurements, allowing for reliable full duplex communication by selecting beam pairs that minimize self-interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If self-interference measurement configuration is performed using configured transmit and receive beams, then measurement capability is improved, but beam conflict occurs leading to unsupported configuration

Engineering Contradiction:

Improveself-interference measurement capabilityVSAvoidconfiguration supportability

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The system performs preliminary determination of beam conflicts before finalizing the self-interference measurement configuration. The apparatus checks whether configured transmit and receive beams conflict with each other in advance, and resolves conflicts by selecting alternative beam pairs before the measurement configuration is activated, ensuring the configuration is supported and reliable

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The apparatus introduces an intermediate beam selection mechanism that acts as a mediator between the configured beams and the measurement process. When a conflict is detected, the system selects alternative transmit and receive beam pairs from available beam sets, ensuring that the measurement configuration can be supported without direct beam conflict

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If transmit and receive beams are configured for self-interference measurement, then measurement function is enabled, but self-interference increases

Engineering Contradiction:

Improvemeasurement function enablementVSAvoidself-interference level

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The system applies local quality optimization by selecting specific transmit and receive beam pairs with particular directional characteristics suitable for each measurement scenario. The apparatus evaluates different beam pairs and selects those with optimal spatial separation properties, ensuring that each local measurement configuration uses beams with qualities that minimize self-interference while enabling the measurement function

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system changes beam selection parameters dynamically based on conflict detection. When self-interference measurement is configured, the apparatus modifies the transmit and receive beam parameters by selecting alternative beam pairs from available sets, adjusting the spatial and directional parameters to reduce self-interference while maintaining measurement capability

Inventive Principle:

Principle #35Parameter changes

3Reliability

If beam conflict resolution is performed by canceling transmissions or measurements, then conflict is resolved, but communication productivity decreases

Engineering Contradiction:

Improveconfiguration validityVSAvoidcommunication throughput

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

Instead of canceling entire transmissions or measurements, the system applies partial action by selectively resolving only the conflicting beam pairs while maintaining non-conflicting configurations. The apparatus identifies specific conflicting transmit-receive beam pairs and resolves only those, allowing other beams to continue operating, thus maintaining communication productivity while ensuring configuration validity

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11812457B2Conflict resolution for self interference measurement

Publication Date: 2023.11.07 QUALCOMM INC

AI summary

A configuration to enable a wireless device to resolve a conflict between configured transmit beams and configured receive beams in a self-interference measurement configuration. The first wireless device receives, from a second wireless device, a configuration for a self-interference measurement. The first wireless device determines whether a conflict is present between a configured transmit beam and a configured receive beam. The first wireless device resolves the conflict between the configured transmit beam and the configured receive beam. Similarly, a second wireless device configures a configuration for a self-interference measurement for a first wireless device. The second wireless device determines whether a conflict is present between a configured transmit beam and a configured receive beam of the configuration. The second wireless device resolves the conflict between the configured transmit beam and the configured receive beam. The second wireless device transmits, to the first wireless device, the configuration for the self-interference measurement.