User Equipment Partial Beam Failure Detection Multiple TRPs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In future radio communication systems like NR, controlling beam failure detection and recovery across multiple transmission/reception points (TRPs) is challenging, leading to potential decreases in communication throughput and quality.
Innovation Solution
The system configures reference signals for beam failure detection and recovery, allowing user equipment to detect partial beam failures and recover using available beams, thereby reducing resource waste and improving recovery speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure detection is performed in multiple TRPs, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments beam failure detection into individual TRP-level operations. Each TRP independently monitors its own beam quality using dedicated reference signals, allowing the system to manage multiple TRPs through modular, independent detection units rather than a monolithic complex system.
Solution Approach 2:
The patent applies local quality by configuring different beam failure detection parameters and reference signals for each TRP based on its specific characteristics. Each TRP has customized detection thresholds and reference signal configurations tailored to its local channel conditions, enabling optimized detection without requiring uniform complex processing across all TRPs.
2Reliability
If partial beam failure recovery is implemented, then communication quality is improved, but measurement precision requirements increase
Solution Approach 1:
The patent implements partial beam failure recovery by triggering recovery procedures only when a subset of TRPs experience beam failure, rather than requiring all TRPs to fail. This partial action approach allows the system to recover from localized failures using available good TRPs, avoiding the need for overly precise measurements across the entire system while still achieving high communication quality.
Solution Approach 2:
The patent enables self-service by allowing the UE to autonomously identify available TRPs for recovery and initiate beam failure recovery procedures independently. The UE uses locally available measurement information to determine recovery actions without requiring centralized coordination or extremely precise cross-TRP measurements, reducing overall measurement precision requirements.
3Measurement precision
If multiple reference signals are configured for beam failure detection, then detection accuracy is improved, but loss of time increases
Solution Approach 1:
The patent applies dynamics by enabling the system to adaptively select which reference signals to monitor based on current operational conditions. When TRPs are available, the system uses those for detection; when TRPs fail, it switches to alternative reference signals. This dynamic adaptation allows high detection accuracy through multiple reference signals while minimizing detection time by only measuring what is currently available and relevant.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
For proper beam failure detection or beam failure recovery even when a plurality of transmission points are used, an aspect of user equipment of the present disclosure includes: a receiving section configured to receive information regarding a number or proportion of at least one of a beam, a link, and a reference signal used to specify partial beam failure detection with respect to one or more transmission/reception points; and a control section configured to perform partial beam failure detection at one or a plurality of transmission/reception points based on the information.