Uplink Power Control for Interference and Battery Life
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Solution Overview
Problem
Current wireless communication systems face challenges in managing uplink transmission power effectively, leading to interference issues and reduced battery life in User Equipment (UE) devices, as existing power control methods do not adequately adapt to radio propagation channel conditions and interference from other user equipment within and between cells.
Innovation Solution
A Transmit Power Control (TPC) scheme for User Equipment (UE) that receives power control factors, including resource block power and path loss compensation factors, to determine optimal transmission power for uplink transmission beams, reducing interference and improving battery life by adapting to path loss and interference conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink transmission power is increased to improve signal quality and extend coverage, then link budget is enhanced, but interference with other UEs increases and battery life is reduced
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmission power based on path loss compensation factors and interference conditions. The system modifies power parameters in response to changing channel conditions, achieving optimal link budget while minimizing interference through adaptive power control.
Solution Approach 2:
The patent implements feedback mechanisms where the UE monitors interference levels and path loss conditions, then adjusts transmission power accordingly. The base station provides power control commands based on received signal quality, creating a closed-loop system that balances link budget requirements with interference reduction.
2Reliability
If uplink transmission power is increased to maintain communication quality, then signal reliability is improved, but battery life is reduced
Solution Approach 1:
The patent uses parameter changes to dynamically adjust transmission power based on actual channel conditions and path loss. By modifying power parameters adaptively rather than using fixed high power, the system maintains signal quality while reducing unnecessary energy consumption and extending battery life.
Solution Approach 2:
The patent implements dynamic power control where transmission power is continuously adjusted based on real-time channel conditions, path loss measurements, and base station feedback. This dynamic approach ensures sufficient signal quality only when necessary, minimizing energy consumption and preserving battery life.
3Adaptability or versatility
If conventional power control methods are used, then device complexity is low, but adaptability to radio propagation channel conditions is insufficient
Solution Approach 1:
The patent achieves improved adaptability through parameter changes by implementing path loss compensation factors and interference-based power adjustments. The system modifies power parameters in response to measured channel conditions, providing adaptive control without requiring fundamentally complex new mechanisms.
Solution Approach 2:
The patent applies self-service principles by enabling the UE to autonomously measure path loss, estimate interference conditions, and adjust its own transmission power based on base station feedback. This self-adjusting capability improves adaptability to channel conditions while keeping the overall system complexity manageable.
Data Source
AI summary
Uplink Transmission Power Control (TPC) techniques configured to compensate for variations in path loss and/or interference on a plurality of uplink transmission beams.