User Equipment Multi-Antenna Power Allocation by Path Loss
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Solution Overview
Problem
Existing wireless communication technologies face challenges in increasing uplink transmission rates while reducing power consumption in user equipment (UE) with multiple antennas due to complex and uncertain transmission environments that increase modulation difficulty.
Innovation Solution
A transmission power allocation method for user equipment (UE) that calculates path loss for each antenna, adjusts transmission power based on maximum path loss, and applies specific power adjustments to achieve power balance across antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-antenna technology is applied in uplink transmissions, then transmission rate is improved, but power consumption increases and modulation difficulty increases due to complex transmission environment
Solution Approach 1:
The patent applies different transmission power levels to different antenna ports based on their specific path loss characteristics. Instead of uniform power allocation, each antenna port is assigned power according to its individual channel conditions, achieving local optimization of power distribution to reduce overall power consumption while maintaining transmission performance.
Solution Approach 2:
The patent dynamically adjusts transmission power parameters based on calculated path loss values for each antenna port. By changing the power parameter adaptively according to channel conditions, the system optimizes the balance between transmission rate and power consumption, avoiding excessive power usage in channels with already good signal quality.
2Productivity
If transmission power is increased to improve uplink transmission rate, then transmission rate is improved, but power consumption increases
Solution Approach 1:
The patent implements non-uniform power allocation where each antenna port receives power tailored to its specific path loss characteristics. Antenna ports with lower path loss receive reduced power while those with higher path loss receive appropriate power boosts, achieving energy-efficient transmission that maintains overall system performance without excessive total power consumption.
3Device complexity
If uniform power allocation is used across all antenna ports, then device complexity is reduced, but transmission performance deteriorates in complex transmission environments
Solution Approach 1:
The patent implements differentiated power allocation for each antenna port based on individual path loss measurements. This local optimization approach improves transmission performance in complex environments by adapting to specific channel conditions, while the automation of path loss calculation and power determination keeps implementation complexity manageable.
Solution Approach 2:
The system automatically calculates path loss for each antenna port and determines optimal power allocation without requiring complex external control or manual configuration. The UE autonomously performs measurements, calculations, and power adjustments, simplifying the overall system architecture while achieving adaptive optimization.
Data Source
AI summary
A transmission power allocation method is provided. The transmission power allocation method is applied in user equipment (UE). The transmission power allocation method includes the following steps. The UE calculates the target power. The UE calculates the path loss of each antenna of the UE. The UE adjusts the transmission power of each antenna, except for a first antenna which corresponds to the maximum path loss, based on the maximum path loss.