MTRP Uplink Power Allocation for Multiple UE Panels
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Solution Overview
Problem
In communication systems supporting multiple transmission and reception points (MTRP), existing methods fail to efficiently allocate transmission power across multiple panels of a terminal, given the terminal's limited maximum transmission power, leading to suboptimal communication performance.
Innovation Solution
A method and apparatus for uplink power control in a communication system that determines and differentially allocates transmission power to each panel based on link qualities and/or priorities, ensuring the total power does not exceed the terminal's maximum capacity, while optimizing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal uses multiple panels for communication with multiple TRPs, then communication reliability and capacity are improved, but the transmission power is exceeded because the terminal's maximum transmission power is limited
Solution Approach 1:
The patent segments the total transmission power into panel-specific power budgets. Each panel is assigned a portion of the total power based on its link quality and communication requirements, ensuring that the sum of panel powers does not exceed the terminal's maximum transmission power while maintaining reliable communication across multiple TRPs
Solution Approach 2:
The patent applies different power allocation strategies to different panels based on their individual link qualities. Panels with better link quality receive different power levels compared to panels with poorer link quality, optimizing the power distribution to maintain communication reliability while staying within power limits
2Device complexity
If equal power is allocated to all panels, then the power allocation is simple, but communication efficiency is reduced because panels with better link quality cannot transmit at optimal power levels
Solution Approach 1:
The patent implements dynamic power allocation where the power assigned to each panel changes based on real-time link quality measurements and communication requirements. The base station determines optimal power levels for each panel considering factors such as path loss, interference, and quality of service requirements, enabling the system to adapt to varying communication conditions
Solution Approach 2:
The patent changes the power allocation parameters dynamically based on link quality metrics. The base station adjusts power levels for each panel according to measured link conditions, transforming the static equal-power approach into a dynamic adaptive power distribution that optimizes communication efficiency
Data Source
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AI summary
Disclosed are a method and device for uplink power control in a communication system supporting MTRP. A method for a UE comprises the steps of: determining a first transmission power of a first panel among multiple panels of the UE; determining a second transmission power of a second panel among the multiple panels; performing first UL transmission via the first panel by using the first transmission power; and performing second UL transmission via the second panel by using the second transmission power.