Beam Failure Recovery Control Across Multiple TRPs
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Solution Overview
Problem
In future radio communication systems, controlling beam failure detection and recovery in multiple transmission/reception points (TRPs) or user equipment (UE) panels is not adequately addressed, leading to potential communication throughput reduction and quality degradation.
Innovation Solution
A terminal equipped with a receiving section for beam failure detection reference signals and a control section that manages beam failure recovery procedures in units of transmission/reception points or sets, including multiple points, to enhance beam failure detection and recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure detection is performed in multiple TRPs/UE panels, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments the beam failure detection and recovery process by TRP/panel index, allowing independent detection and recovery control for each transmission/reception point. The control section manages beam failure recovery procedures in units of one TRP or a set including multiple TRPs, enabling granular control that improves reliability without overwhelming complexity
Solution Approach 2:
The patent applies local quality by allowing different beam failure recovery control strategies for different TRPs or panels based on their individual conditions. The receiving section receives BFD-RSs corresponding to multiple TRPs, and the control section can selectively manage recovery procedures for specific TRPs or groups, optimizing performance for each local condition
2Reliability
If beam failure recovery procedure is controlled in units of one TRP or TRP set, then communication quality is maintained, but control complexity increases
Solution Approach 1:
The control section segments the beam failure recovery control into manageable units (one TRP or a TRP set), allowing systematic management of multiple TRPs. This segmentation enables the control section to handle each unit independently while maintaining overall system quality
Solution Approach 2:
The patent implements dynamic control where the control section can adaptively determine whether to manage beam failure recovery for individual TRPs or groups of TRPs based on real-time conditions. This dynamic approach allows flexible control that maintains communication quality while managing complexity through adaptive decision-making
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a receiving section that receives one or more beam failure detection reference signals (BFD-RSs) corresponding to a plurality of transmission/reception points, and a control section that, when radio link quality of at least part of configured BFD-RSs is less than a threshold value, controls beam failure recovery procedure in units of one transmission/reception point or in units of a transmission/reception point set including a plurality of transmission/reception points.