Beam Failure Indicators for Noise and Interference
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively distinguishing and addressing beam failures due to noise and interference, which affects communication quality and reliability, particularly in environments with obstructions or local interference.
Innovation Solution
User equipment (UE) and base stations employ beam failure indicators (BFIs) selected based on measurements of reference signals, allowing for differentiation between noise-related and interference-related failures, enabling targeted beam adjustment and resource management to improve communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure recovery procedures are triggered frequently to address noise or interference, then communication reliability may be improved, but network resources and battery power are consumed excessively
Solution Approach 1:
The patent applies local quality by differentiating between beam failures caused by noise versus interference. The system uses measurement criteria to identify the specific cause of beam failure and selects appropriate recovery procedures accordingly. This localized differentiation ensures that recovery actions are taken only when necessary and appropriate, avoiding unnecessary resource consumption while maintaining communication reliability.
Solution Approach 2:
The patent changes the parameter of beam failure indication by introducing multiple types of BFIs (first BFI for noise-related failures, second BFI for interference-related failures). This parameter differentiation allows the system to adjust recovery strategies based on the specific failure cause, optimizing the balance between reliability improvement and energy consumption.
2Reliability
If beam failure recovery procedures are triggered frequently to address noise or interference, then communication reliability may be improved, but network resources are consumed excessively
Solution Approach 1:
The system applies local quality by distinguishing between different failure causes (noise versus interference) and applying appropriate recovery procedures only when necessary. This localized approach prevents unnecessary network resource consumption while maintaining communication reliability through targeted interventions.
Solution Approach 2:
The patent implements feedback mechanisms where the base station measures reference signals and provides feedback information about the cause of beam failure (noise-related or interference-related). This feedback enables the user equipment to make informed decisions about whether to trigger recovery procedures, optimizing the use of network resources while maintaining reliability.
3Reliability
If multiple types of beam failure indicators are implemented to distinguish noise and interference, then communication quality is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing beam failure indicators into multiple types (first BFI for noise-related failures, second BFI for interference-related failures). This segmentation allows the system to handle different failure causes separately with appropriate recovery procedures, improving communication quality while keeping the complexity manageable through structured classification.
Solution Approach 2:
The system changes the parameter of beam failure indication by introducing multiple BFI types with different meanings. This parameter differentiation enables the system to convey specific failure cause information without requiring complex additional signaling mechanisms, thus improving communication quality while limiting the increase in device complexity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, at least one reference signal associated with at least one beam. The UE may generate a beam failure indicator (BFI) based at least in part on one or more measurements of the at least one reference signal at the UE. The BFI may be selected (e.g., by the UE or by the base station) from two or more types of BFI based at least in part on one or more measurements associated with the at least one beam at the base station. Numerous other aspects are described.