Per-Beam Failure Detection for Multi-Beam Wireless Communications
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing beam failures due to complex and dynamic environments, leading to signal attenuation or blockage, which undermines established wireless channel measuring and reporting mechanisms.
Innovation Solution
The implementation of a method for wireless communication that involves communicating with a network entity via multiple beams, performing beam failure detection per beam, and triggering a beam failure recovery procedure when a beam failure is detected, thereby addressing the issue of temporary degradation of radio conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beam failure detection is performed per beam in multi-beam communications, then beam failure detection accuracy and speed are improved, but device complexity increases
Solution Approach 1:
The patent segments the beam failure detection process by performing detection independently for each beam in the plurality of beams. Each beam has its own failure detection counter and parameters, allowing parallel processing and improving overall detection accuracy without requiring a single complex detection mechanism to handle all beams simultaneously.
Solution Approach 2:
The patent applies local quality by configuring beam-specific failure detection parameters for each beam in the plurality of beams. This allows tailored detection thresholds and counters for each beam, enabling accurate detection of beam-specific failures while maintaining manageable complexity through standardized local implementations.
2Reliability
If beam failure detection parameters are configured for each beam, then detection reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent implements universality by using a standardized failure detection counter and parameter structure that can be applied to all beams in the plurality of beams. This universal approach allows reliable beam-specific detection through parameter configuration rather than unique detection mechanisms for each beam, reducing the information overhead required for signaling.
3Reliability
If beam failure recovery procedure is triggered for each beam failure, then communication reliability is improved, but time latency increases
Solution Approach 1:
The patent applies preliminary action by maintaining failure detection counters and configuring detection parameters in advance for each beam before actual failures occur. This pre-prepared state enables rapid triggering of recovery procedures when beam failures are detected, reducing the time latency between failure detection and recovery initiation while maintaining high communication reliability.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for beam failure detection per beam. A method that may be performed by a user equipment (UE) includes communicating with a network entity via a plurality of beams associated with a cell; performing a beam failure detection procedure per beam of the plurality of beams; and triggering a beam failure recovery procedure for a first beam of the plurality of beams in response to detecting a first beam failure for the first beam.