Autonomous Beam Failure Detection Criteria Selection
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Solution Overview
Problem
Current wireless communication systems face high control overhead and processing delays in beam failure detection due to reliance on base station signaling, which limits the autonomy and efficiency of user equipment (UE) in detecting beam failures.
Innovation Solution
The UE autonomously selects criteria for detecting beam failure by performing measurements on beam failure detection reference signals, reducing the need for base station signaling and enabling faster reaction times to beam failure events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE relies on base station signaling for beam failure detection criteria, then the control overhead is high and processing delays occur, but the UE autonomy and reaction speed are reduced
Solution Approach 1:
The UE autonomously selects and applies criteria for beam failure detection without requiring continuous base station signaling. The UE performs measurements on beam failure detection reference signals and independently determines when beam failure occurs, enabling self-service operation that reduces control overhead and increases detection speed.
Solution Approach 2:
The base station pre-configures beam failure detection reference signals and parameters before actual failure detection is needed. This preliminary setup allows the UE to immediately perform measurements and detect beam failures without waiting for real-time signaling, reducing processing delays while maintaining controlled overhead through pre-established configurations.
2Loss of time
If the UE autonomously selects criteria for beam failure detection, then control overhead is reduced and processing delays are minimized, but the complexity of UE decision-making increases
Solution Approach 1:
The patent defines specific parameter thresholds and measurement criteria that the UE uses to autonomously determine beam failure. By establishing concrete parameter changes (such as reference signal received power thresholds, signal-to-interference-plus-noise ratio criteria), the UE can make automated decisions without complex decision-making processes, reducing both processing delay and decision-making complexity.
Solution Approach 2:
The UE continuously monitors beam failure detection reference signals and provides feedback about the measurement results to determine whether beam failure criteria are met. This feedback mechanism enables the UE to autonomously and rapidly detect beam failures by comparing real-time measurements against predefined criteria, minimizing processing delays while keeping the decision-making process systematic and manageable.
3Adaptability or versatility
If the base station signals a level of autonomy for beam failure detection, then UE flexibility and capability utilization improve, but the signaling overhead increases
Solution Approach 1:
Instead of requiring full base station control for all beam failure detection operations, the system implements partial autonomy where the UE independently handles beam failure detection based on pre-configured parameters. This partial action approach allows the UE to operate autonomously for detection tasks while the base station maintains overall control, improving UE flexibility without requiring excessive signaling overhead for every decision.
Solution Approach 2:
The system dynamically adjusts the level of autonomy based on operational conditions and UE capabilities. The base station can signal different autonomy levels, allowing the UE to adapt its behavior accordingly. This dynamic approach enables the system to optimize between base station control and UE autonomy based on real-time needs, improving flexibility while managing signaling overhead through conditional configurations.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use the techniques described herein to efficiently detect beam failure. In one aspect, the UE may autonomously select one or more criteria for detecting beam failure. The UE may then perform measurements on beam failure detection reference signals received from the base station and use the selected one or more criteria to detect beam failure. Because the UE may select the one or more criteria without signaling from the base station, control overhead between the UE and the base station may be reduced.