Interference-Based Beam Failure Detection Under Temporary Interference

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face high signaling overhead, high power consumption, and long recovery times due to beam failure detection procedures triggered by temporary interference, which are not effectively distinguished from poor channel conditions.

Innovation Solution

Implement interference-aware beam failure detection techniques that adjust beam failure parameters, such as beam failure indication counts and block error rate thresholds, based on the likelihood of temporary interference, reducing unnecessary beam failure declarations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If beam failure detection procedures are triggered by temporary interference, then beam failure recovery is initiated, but signaling overhead increases and power consumption increases

Engineering Contradiction:

Improvebeam failure detection accuracyVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting beam failure detection thresholds and parameters based on interference conditions. The system modifies detection sensitivity and recovery triggers according to the detected interference level, allowing the system to distinguish between temporary interference and genuine beam failure, thereby reducing unnecessary recovery procedures and associated power consumption while maintaining reliable detection.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If beam failure detection procedures are triggered by temporary interference, then beam failure recovery is initiated, but recovery time increases

Engineering Contradiction:

Improvebeam failure detection accuracyVSAvoidrecovery time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system changes detection parameters dynamically based on interference characteristics. By adjusting thresholds and recovery triggers according to interference level, the system avoids initiating recovery procedures for temporary interference, thereby reducing recovery time while maintaining accurate detection of genuine beam failures through modified detection criteria.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If beam failure detection procedures are triggered by temporary interference, then beam failure recovery is initiated, but signaling overhead increases

Engineering Contradiction:

Improvebeam failure detection accuracyVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements parameter changes in the detection and signaling mechanisms. By dynamically adjusting detection thresholds and signaling triggers based on interference conditions, the system reduces unnecessary signaling for temporary interference while maintaining reliable detection of genuine beam failures, thereby reducing overall signaling overhead and system complexity.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12413290B2Techniques for interference-based beam failure detection

Publication Date: 2025.09.09 QUALCOMM INC

AI summary

Methods, systems, and devices for wireless communications are described that provide for interference-aware beam failure detection procedures. One or more beam failure parameters may be adjusted based on a likelihood of temporary interference being present for a communications beam. The beam failure parameters may include beam failure indication (BFI) counts or count thresholds that may be adjusted based on a likelihood of BFIs being the result of temporary interference. Additionally or alternatively, one or more measurement thresholds that trigger a BFI may be adjusted based on a likelihood of a presence of temporary interference.