High-Resolution TPMI Power Scaling for Uplink Amplifier Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently allocating power to antenna ports for uplink transmissions, particularly when high-resolution TPMIs are received, as existing methods may result in overloading power amplifiers.
Innovation Solution
The proposed solution involves scaling and splitting uplink transmit power based on high-resolution TPMIs by calculating ratios and thresholds for each antenna port, ensuring that power is allocated efficiently and within the capacity of power amplifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution TPMI is used for uplink transmission, then transmission precision and signal quality are improved, but power amplifier overload risk increases
Solution Approach 1:
The patent changes the power allocation parameters by calculating power ratios based on TPMI coefficient amplitudes and comparing them against thresholds. This dynamic parameter adjustment ensures that high-resolution TPMI transmissions do not cause power amplifier overload while maintaining transmission precision.
Solution Approach 2:
The patent applies local quality by allocating different power levels to different antenna ports based on their specific TPMI coefficient characteristics. Each antenna port receives power according to its individual ratio calculation, optimizing local power distribution to prevent overload while maintaining overall transmission quality.
2Reliability
If power is allocated to multiple antenna ports, then transmission diversity and reliability are improved, but power distribution complexity increases
Solution Approach 1:
The patent simplifies power distribution complexity by using threshold-based parameter changes. Instead of complex optimization algorithms, the system compares calculated power ratios against predefined thresholds to determine power allocation, reducing computational complexity while maintaining transmission reliability across multiple antenna ports.
Solution Approach 2:
The patent manages power distribution complexity by applying local quality principles to each antenna port independently. Each port's power allocation is determined by its specific ratio calculation and threshold comparison, allowing parallel processing and simplifying the overall distribution complexity.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE), or some other network node, may scale uplink shared channel transmit power based on a received high-resolution transmitted precoding matrix indicator (TPMI) from a network node. For example, the UE may calculate a ratio for one or more antenna ports of the UE based on coefficient amplitudes from the TPMI, and may determine the scaling factor based on a comparison between the ratio and a threshold. The described techniques may also enable the UE to split power for the one or more antenna ports of the UE based on the received high-resolution TPMI. For example, the UE may calculate a ratio for each antenna port based on coefficient amplitudes from the TPMI, and may determine how power is to be split across antenna ports based on a comparison between the ratio and a threshold.