Multi-Panel Uplink Power Control Under UE Power Limits
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing transmission power across multiple panels in simultaneous transmission scenarios, leading to potential overheating and interference issues.
Innovation Solution
A method and apparatus for a user equipment (UE) to determine and adjust transmission powers of multiple uplink channels based on control resource set (CORESET) indices, ensuring the total power does not exceed the UE's maximum capacity, thereby optimizing power distribution across channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission power is increased for simultaneous transmission across multiple panels, then transmission capability and productivity are improved, but the risk of overheating and interference increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmission power levels based on the identified panel with the highest temperature. The base station modifies power parameters for specific panels rather than uniformly reducing all panel powers, allowing the system to maintain high transmission capability while preventing overheating in specific high-temperature panels.
2Object-affected harmful factors
If transmission power is uniformly reduced across all panels, then overheating risk is reduced, but transmission capability and productivity deteriorate
Solution Approach 1:
The patent implements local quality by applying differential power control to different panels based on their individual temperature conditions. Instead of uniform power reduction, the system identifies specific panels with temperatures above a threshold and applies power reduction only to those panels, while maintaining full power transmission capability for panels operating within safe temperature ranges.
Solution Approach 2:
The patent applies dynamics by implementing real-time monitoring and adaptive power adjustment. The base station continuously monitors panel temperatures and dynamically modifies transmission power parameters in response to changing thermal conditions, allowing the system to optimize between transmission capability and overheating prevention based on current operational states.
3Object-affected harmful factors
If transmission power is selectively reduced based on panel temperature, then overheating is prevented while maintaining transmission capability, but system complexity increases
Solution Approach 1:
The patent applies feedback by implementing a closed-loop system where the base station monitors panel temperatures and uses this information to adjust transmission power parameters. The temperature monitoring mechanism provides continuous feedback to the base station, which then modifies power allocation based on real-time thermal conditions, creating an adaptive control system that prevents overheating while maintaining transmission efficiency.
Data Source
AI summary
The present disclosure relates to a method comprises determining first transmission power of a first uplink channel and second transmission power of a second uplink channel; and transmitting the first uplink channel using the first transmission power using a first uplink grant and transmitting the second uplink channel to the BS using the second transmission power on the basis of a second uplink grant, wherein, if the first uplink channel and the second uplink channel are transmitted simultaneously, one of the first transmission power and the second transmission power is selected based on a first CORESET index associated with the first uplink grant and a second CORESET index associated with the second uplink grant, and the one selected transmission power is reduced such that the sum of the first transmission power and the second transmission power conforms to the maximum transmission power of the UE.