Beam Management for Reduced Transmission Power
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Solution Overview
Problem
Existing approaches to manage beams emitted by user equipment (UE) towards subjects to prevent exceeding maximum permissible exposure (MPE) often result in performance degradation or misinterpretation by base stations, lacking effective methods for beam selection and power management that balance exposure reduction with communication efficiency.
Innovation Solution
Implementing a beam/panel selection based on uplink reception power, which involves reporting specific power reduction values and beamforming characteristics to the base station, allowing for informed beam switching and power adjustment to maintain communication quality while adhering to MPE limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam power is increased to maintain communication quality, then communication efficiency is improved, but maximum permissible exposure (MPE) limits are exceeded
Solution Approach 1:
The patent implements dynamic beam power adjustment where the base station continuously monitors received power levels and adjusts the UE's transmission power accordingly. The system transitions from static power levels to dynamic power control, allowing real-time optimization of communication efficiency while maintaining MPE compliance through feedback-based power adaptation.
Solution Approach 2:
The patent changes the power parameter dynamically based on channel conditions and MPE requirements. By adjusting transmission power levels as a variable parameter rather than using fixed power, the system can optimize communication performance when MPE limits are not critical, and reduce power when subject protection is prioritized, thus resolving the contradiction between efficiency and safety.
2Object-affected harmful factors
If beam switching is implemented to avoid subjects, then exposure is reduced, but beam selection accuracy is insufficient
Solution Approach 1:
The patent implements a feedback mechanism where the base station receives power information from the UE and uses this feedback to make informed beam selection decisions. The feedback loop enables the base station to accurately assess channel conditions and subject proximity, allowing precise beam selection that balances exposure reduction with communication quality, thereby resolving the accuracy insufficiency problem.
3Object-affected harmful factors
If power reduction is applied to comply with MPE, then exposure limits are met, but communication performance degrades
Solution Approach 1:
The patent applies preliminary power adjustment based on predicted channel conditions and subject locations before actual transmission occurs. By pre-calculating appropriate power levels and beam directions, the system可以避免 excessive power reduction that would degrade communication performance, while still ensuring MPE compliance, thus resolving the performance degradation contradiction.
Data Source
AI summary
The present application relates to devices and components including apparatus, systems, and methods to provide beam management for beams with reduced maximum transmission power.