Analog front end non-linear model estimation
EP4771785A2Pending Publication Date: 2026-07-08QUALCOMM INC
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2024-08-01
- Publication Date
- 2026-07-08
AI Technical Summary
Technical Problem
Wireless communications systems face challenges such as signal attenuation and interference from blocker signals, leading to intermodulation distortion and reduced signal-to-noise ratio (SNR) in wireless communications devices.
Method used
A method for estimating a non-linear model of an analog front end (AFE) in wireless communications devices, using far-field training where a second device transmits a known signal to determine the non-linear model, allowing for the application of a correction model to linearize the AFE's response.
Benefits of technology
This approach improves system performance by increasing the effective dynamic range of the AFE, reducing distortions such as IM3 distortion, and minimizing the unnecessary consumption of time-frequency resources and power.
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Smart Images
Figure US2024040494_06032025_PF_FP_ABST
Abstract
Certain aspects of the present disclosure provide techniques for analog front end (AFE) non-linear model estimation. An example method includes transmitting a first message including a request for a second wireless communications device to transmit a signal to the first wireless communications device, receiving, from the second wireless communications device, the signal based on the first message, determining a non-linear model of an AFE of the first wireless communications device based on the signal received from the second wireless communications device, and taking one or more actions based on the determined non-linear model of the AFE.
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