UE Beam Reporting Using Panel Capability Metrics for Throughput
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Solution Overview
Problem
Existing UE beam reporting methods do not adequately consider the varying capabilities of different UE panels with different numbers of TX/RX chains, leading to sub-optimal network node scheduling and reduced DL/UL throughput.
Innovation Solution
UEs evaluate metrics such as the number of TX/RX chains, P-MPR, maximum output power, and estimated throughput when selecting beams for reporting, rather than relying solely on RSRP/SINR, to improve beam reporting accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE beam reporting relies solely on RSRP/SINR metrics, then the reporting process is simple, but the scheduling accuracy and throughput are reduced
Solution Approach 1:
The patent changes the parameters used for beam reporting from only RSRP/SINR to include panel properties such as number of TX/RX chains, P-MPR, and maximum output power. This allows the network node to make more informed scheduling decisions that account for the actual capabilities of different UE panels, thereby improving throughput despite increased reporting complexity.
Solution Approach 2:
The patent segments the beam reporting process into two parts: traditional signal quality metrics (RSRP/SINR) and panel capability metrics (number of chains, P-MPR, output power). This segmentation allows the network to separately evaluate both the channel conditions and the UE's transmission capabilities, leading to more accurate scheduling.
2Productivity
If UE panels with different numbers of TX/RX chains are not differentiated, then the system operation is simple, but the scheduling optimization is limited
Solution Approach 1:
The patent applies local quality by having each UE panel report its specific capabilities (number of TX/RX chains, P-MPR, maximum output power) rather than treating all panels uniformly. This allows the network node to optimize scheduling decisions for each panel based on its individual characteristics, improving overall system throughput.
3Productivity
If P-MPR events are not considered in beam reporting, then the reporting process is simpler, but the impact of P-MPR on throughput is not mitigated
Solution Approach 1:
The patent implements preliminary action by having UEs report P-MPR values in advance as part of the beam reporting process. This allows the network node to proactively identify and mitigate the impact of P-MPR events on throughput by making informed scheduling decisions before actual transmissions occur.
Data Source
AI summary
A method and user equipment (UE) for providing beam reports for UEs that use different kinds of antenna panels are disclosed. According to one aspect, a method includes performing a first performance measurement on a first beam associated with a first antenna panel having a first panel property. The method also includes performing a second performance measurement of a second beam associated with a second antenna panel having a second panel property. The method further includes selecting one of the first beam and the second beam based at least in part on the first panel property and the second panel property. The process also includes transmitting a beam report including the selected one of the first beam and the second beam.