Antenna Panel Beam Mapping for Wireless UE
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Solution Overview
Problem
In wireless communication systems, user equipment (UE) may experience degraded performance due to the use of suboptimal antenna panels for beam indications, especially when the UE moves or rotates, leading to inefficient communication and increased network overhead.
Innovation Solution
A UE initiates the generation and transmission of a report to a base station indicating a mapping between beam indications and antenna panels, allowing the UE to switch to a better antenna panel without waiting for a scheduled beam report, thereby improving communication quality and reducing network overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE waits for a scheduled beam report to switch antenna panels, then the base station can coordinate the switching, but the UE suffers communication degradation during the waiting period
Solution Approach 1:
The UE performs preliminary actions by autonomously determining antenna panel switching based on blockage detection before the scheduled beam report is received. The UE proactively switches to a different antenna panel when blockage is detected, rather than waiting for the base station's scheduled beam report, thus preventing communication degradation in advance
Solution Approach 2:
The UE serves itself by autonomously making antenna panel switching decisions based on its own blockage detection, without requiring immediate base station intervention. The UE independently evaluates its communication quality and performs switching operations, reducing dependency on scheduled base station commands
2Reliability
If the UE autonomously switches antenna panels without base station coordination, then communication quality improves immediately, but network overhead and signaling resources increase
Solution Approach 1:
The UE provides feedback to the base station about its antenna panel switching decisions and blockage conditions. This feedback mechanism allows the base station to maintain awareness of UE antenna configurations and provide coordinated responses, balancing autonomous UE action with network-level coordination to manage signaling overhead
Solution Approach 2:
The UE performs partial autonomous switching actions rather than complete independent operation. The UE autonomously switches panels when blockage is detected but still reports to the base station, performing just enough autonomous action to maintain communication quality while avoiding excessive signaling by not requiring base station approval for each switch
3Adaptability or versatility
If multiple beam indications are mapped to multiple antenna panels, then the system provides redundancy and adaptability, but the device complexity increases
Solution Approach 1:
The system segments beam indications into separate mappings for different antenna panels. Each beam indication is associated with specific antenna panel(s), allowing the UE to independently manage and switch between panel-specific beam mappings. This segmentation simplifies the management of multiple antenna panels by organizing beam indications in a structured, panel-specific manner
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a report indicating a mapping between antenna panels and reference signal beam indications. The UE may transmit the report and apply the mapping to the antenna panels for reference signals. Numerous other aspects are provided.