UE Beam Reporting Using Base Station Candidate Indications
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing beam reporting for user equipment (UE) in wireless communication networks, particularly in scenarios where multiple beams need to be simultaneously transmitted and received.
Innovation Solution
A method where a user equipment (UE) receives an indication of multiple candidate beams from a base station, determines a first and second beam based on measurements, and transmits this information back to the base station, allowing for simultaneous communication on these beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE performs repeated beam reporting procedures to ensure reliable communication, then the reliability of communication is improved, but the power consumption and resource usage increase
Solution Approach 1:
The base station performs preliminary beam determination and identifies a set of candidate beams before the UE needs to report beam information. By pre-determining the candidate beams and providing this information to the UE, the system reduces the need for repeated beam reporting procedures, thereby lowering UE power consumption while maintaining communication reliability through the pre-selected candidate beams.
2Adaptability or versatility
If the UE performs repeated beam reporting procedures to adapt to changing channel conditions, then the adaptability is improved, but the resource usage and time consumption increase
Solution Approach 1:
The base station pre-determines a set of candidate beams and provides this information to the UE in advance. This preliminary action enables the UE to quickly select from the pre-identified candidate beams when channel conditions change, reducing the time required for beam reporting while maintaining adaptability to changing wireless environments.
3Measurement precision
If the system uses detailed beam measurement and reporting procedures, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The base station performs preliminary measurements and beam determinations, identifying a set of candidate beams with associated reference signal resources. By shifting the measurement and analysis workload to the base station before providing the candidate beam set to the UE, the system maintains measurement precision while reducing the complexity of beam reporting procedures that the UE must execute.
Data Source
AI summary
Various aspects of the present disclosure generally relate to indicating beams for user equipment beam reporting. In some aspects, a user equipment (UE) may receive, from a base station, an indication of a plurality of candidate beams on which the base station is able to simultaneously transmit communications to the UE, and determine a first beam and a second beam from among the plurality of candidate beams, based at least in part on one or more measurements of the plurality of candidate beams. The UE may transmit an indication of the first beam and the second beam to the base station, and receive communications simultaneously on the first beam and the second beam. Numerous other aspects are provided.