Methods and apparatuses for digital pre-distortion
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United States of America Patent
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May 4, 2021
Grant Date -
Jun 18, 2020
app pub date -
Feb 24, 2020
filing date -
Aug 10, 2017
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Abstract
A method is provided. The method, comprises: power amplifying, with at least two parallel power amplifiers, at least two pre-distorted signals each corresponding to a unique transmit band, wherein each power amplifier operates in a unique transmit band; and pre-distorting, with a single pre-distortion system, at least two signals in different transmit bands, where the pre-distortion of each of the at least two signals is based upon a portion of a corresponding power amplified, pre-distorted signal, and where the pre-distortion diminishes certain IMD products in the corresponding power amplified, pre-distorted signal.
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