Partial Beam Failure Reporting for 5G NR Reliability
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in effectively managing beam failures across multiple beams, leading to suboptimal performance and reliability in wireless communication networks.
Innovation Solution
A method is introduced where user equipment (UE) performs beam failure detection and reports partial beam failure indicators to the base station, allowing for configuration of aperiodic partial beam failure reports with customizable parameters for each beam, enabling periodic or aperiodic transmission based on specific conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure detection is performed per beam in multiple beam systems, then beam management reliability is improved, but system complexity and reporting overhead increase
Solution Approach 1:
The patent segments beam failure detection and reporting by introducing partial beam failure reports that focus on specific beams rather than requiring comprehensive reporting across all beams. This segmentation allows individual beam monitoring while reducing overall system complexity through selective reporting mechanisms.
Solution Approach 2:
The patent applies local quality by configuring different parameters for different beams, allowing each beam to have customized detection thresholds, reporting periodicity, and failure criteria. This enables tailored beam management where each beam can be monitored according to its specific characteristics and importance.
2Measurement precision
If partial beam failure reports are transmitted periodically, then beam failure detection accuracy is improved, but uplink resource consumption increases
Solution Approach 1:
The patent implements periodic action through configurable reporting periodicity for partial beam failure reports. The system can transmit reports at regular intervals when beam failure conditions are detected, balancing detection accuracy with resource efficiency by adjusting the periodicity according to network conditions and beam importance.
Solution Approach 2:
The patent applies parameter changes by allowing dynamic adjustment of reporting parameters such as periodicity, threshold values, and trigger conditions. These parameters can be modified based on network conditions, beam priority, and resource availability, enabling optimization between detection accuracy and resource consumption.
3Reliability
If comprehensive beam failure reporting is implemented across all beams, then network reliability is improved, but signaling overhead and processing burden increase
Solution Approach 1:
The patent extracts only the essential beam failure information from comprehensive beam data by implementing partial beam failure reports. Instead of reporting on all beams, the system identifies and reports only on beams that exhibit failure conditions or meet specific criteria, reducing signaling overhead while maintaining network reliability.
Solution Approach 2:
The patent applies partial action by implementing selective beam failure reporting where only certain beams or certain aspects of beam failure are reported based on predefined criteria. This partial reporting approach reduces processing burden and signaling overhead while still providing sufficient information for effective beam management and network reliability maintenance.
Data Source
AI summary
A user equipment (UE) may perform a beam failure procedure per beam of multiple beams and transmit, to a base station, a partial beam failure (BF) report. The base station may transmit, to the UE, a configuration of the partial BF report, and the UE may generate and transmit the partial BF report for the base station to perform the beam management. The parameters of the aperiodic partial BF report may be configured with the same or different parameters for each beam. The partial BF report may include at least one of a current beam failure indication (BFI) count or a channel measurement for each beam. The partial BF report may be transmitted periodically or aperiodically.