Compression Point Reporting for Power Amplifier Distortion Control

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Solution Overview

Problem

Power amplifiers in wireless communication systems introduce distortion during signal amplification, leading to non-linear distortion and interference, which is not effectively managed by existing technologies, affecting communication performance.

Innovation Solution

Enhanced reporting of decibel compression point information is implemented to determine and manage power allocation, allowing for more accurate and efficient use of power amplifiers, reducing distortion and interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If power amplifiers amplify signals in wireless communication systems, then transmission power is increased, but non-linear distortion and interference are introduced

Engineering Contradiction:
Improvetransmission powerVSAvoidnon-linear distortion
Core Design Contradiction:
PowerVSObject-generated harmful factors

Solution Approach 1:

The patent changes the operating parameters of power amplifiers by determining compression point information (such as P1dB) and using this to adjust power allocation. The base station configures different power amplifiers with different power values based on their compression point characteristics, thereby optimizing the linear operating range and reducing non-linear distortion while maintaining transmission power.

Inventive Principle:
Principle #35Parameter changes

2Power

If power amplifiers are used to increase transmission power, then communication coverage is improved, but measurement precision of distortion characteristics is insufficient

Engineering Contradiction:
Improvetransmission powerVSAvoiddistortion measurement precision
Core Design Contradiction:
PowerVSMeasurement precision

Solution Approach 1:

The patent replaces traditional subjective or coarse distortion evaluation methods with objective, quantifiable compression point measurements. By using specific measurement techniques to determine P1dB and other compression point parameters, the system achieves precise characterization of power amplifier distortion characteristics, enabling data-driven power allocation decisions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If traditional power allocation methods are used, then system simplicity is maintained, but communication performance is degraded due to unmanaged distortion

Engineering Contradiction:
Improvepower allocation complexityVSAvoidcommunication performance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the base station receives compression point information from user equipment, determines optimal power allocation based on this feedback, and configures power amplifiers accordingly. This closed-loop approach enables the system to adapt to actual distortion characteristics and optimize communication performance while managing complexity through structured feedback processing.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12587970B2Decibel compression point information reporting
Publication Date: 2026.03.24 QUALCOMM INC
  • US12587970B2 patent drawing
  • US12587970B2 patent drawing
  • US12587970B2 patent drawing

AI summary

This disclosure provides systems, methods, and devices for wireless communication that support compression point information reporting and enhanced power allocation operations. In a first aspect, a method of wireless communication includes receiving a reference signal and transmitting compression point information responsive to the reference signal, where the compression point information is determined based on the reference signal. The method of wireless communication further includes receiving a transmission responsive to the compression point information and in accordance with a power allocation based on the transmission of the compression point information. Other aspects and features are also claimed and described.