System and method for IQ mismatch calibration and compensation
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United States of America
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Jul 2, 2024
Grant Date -
N/A
app pub date -
Sep 17, 2021
filing date -
Sep 17, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for providing IQ mismatch (IQMM) compensation includes: estimating an overall frequency response of a compensation filter by stepping through a frequency range starting at an initial frequency and performing (1) through (3) at each step, a selected frequency at each step being a multiple of a subcarrier frequency of the initial frequency: (1) sending a single tone signal at the selected frequency, (2) determining a first response of a mismatched signal at the selected frequency and a second response of the mismatched signal at an image frequency of the selected frequency, and (3) estimating a frequency response of the compensation filter at the selected frequency based on the first response and the second response; generating time-domain filter taps based on the estimated overall frequency response of the compensation filter; determining a time delay based on the time-domain filter taps; and generating a compensated signal based on the time delay.
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International Classification(s)
- 2021 Application Filing Year
- H04L Class
- 33798 Applications Filed
- 20288 Patents Issued To-Date
- 60.03 % Issued To-Date
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- H04L Class
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