Asymmetric Antenna Panel Beam Reporting for Uplink Sounding
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Solution Overview
Problem
Existing wireless communication systems with asymmetric antenna panels face challenges in power saving, overheating, and flexibility due to inadequate granularity in beam reporting, which does not consider the quantity of antenna elements per port, leading to reduced control and inefficient uplink sounding.
Innovation Solution
A UE receives reference signals, performs measurements, and reports beam information including a request for uplink sounding based on changes in antenna elements per port, with network entities scheduling SRS transmission accordingly, using trigger conditions and machine learning for prediction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If beam reporting does not consider antenna elements per port, then the reporting mechanism is simpler, but power saving and flexibility are reduced
Solution Approach 1:
The patent introduces a new parameter dimension to beam reporting by incorporating antenna elements per port information. This parameter change enables the system to distinguish between different antenna configurations, thereby improving power saving and flexibility while maintaining manageable complexity through structured reporting formats.
Solution Approach 2:
The beam reporting mechanism is segmented into different types of reports (e.g., first beam reports for initial configuration, second beam reports for updates) based on antenna element changes. This segmentation allows the system to handle complexity by processing reports in manageable chunks rather than all at once.
2Device complexity
If beam reporting lacks granular control, then the system is simpler to implement, but control over asymmetric antenna panels is reduced
Solution Approach 1:
The patent applies local quality by providing granular control specifically for asymmetric antenna panels while maintaining a unified reporting structure. The system identifies and handles asymmetric configurations (where antenna elements per port differ) with specialized control mechanisms, while symmetric configurations follow standard procedures.
3Productivity
If uplink sounding is not optimized, then the communication system is simpler, but communication efficiency is reduced
Solution Approach 1:
The patent implements feedback mechanisms where the network entity receives beam reports containing antenna element information and uses this feedback to optimize uplink sounding configurations. The network adjusts sounding parameters based on the reported asymmetric antenna panel characteristics, improving communication efficiency through continuous adaptation.
Solution Approach 2:
The system performs preliminary configuration of uplink sounding parameters based on beam reports received before actual data transmission. By pre-configuring the sounding mechanism according to the antenna elements per port information, the system optimizes communication efficiency without adding complexity during the actual data transmission phase.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a reference signal via a downlink beam from a network entity. The UE may perform measurements on the reference signal and report the measurements to the network entity via a beam report. In some examples, the beam report may indicate a request for uplink sounding at the UE or may indicate a downlink rank associated with each downlink beam indicated in the beam report. The UE may transmit the beam report in accordance with a trigger condition, such as a change in a quantity of antenna elements of an antenna port of the UE satisfying a threshold. The network entity may schedule a sounding reference signal (SRS) to be transmitted by the UE in accordance with the request, and the UE may transmit the SRS according to the scheduling.