Samsung electronics co., ltd. (20250007544). POWER AMPLIFIER-AWARE MODULATION
Contents
POWER AMPLIFIER-AWARE MODULATION
Organization Name
Inventor(s)
Joonyoung Cho of Portland OR US
Jianzhong Zhang of Dallas TX US
Chance Anthony Tarver of Arlington TX US
POWER AMPLIFIER-AWARE MODULATION
This abstract first appeared for US patent application 20250007544 titled 'POWER AMPLIFIER-AWARE MODULATION
Original Abstract Submitted
methods and apparatuses for dynamically adjusting parameters of a modulation scheme and parameters of a digital pre-distorter (dpd) to pre-compensate for distortion effects of a power amplifier (pa). a user equipment (ue) comprises a modulator configured to generate modulation symbols from input bits according to an adjusted symbol constellation, a dpd operably configured to generate pre-distorted symbols, and a pa configured to amplify the pre-distorted symbols to generate transmission symbols that include distortion effects of the pa. the adjusted symbol constellation is adjusted from a target symbol constellation such that the generated modulation symbols pre-compensate for the distortion effects. the dpd is further configured to generate the pre-distorted symbols from the modulation symbols using a pre-distortion function to further pre-compensate for the distortion effects, and update the pre-distortion function such that a difference between the transmission symbols and a scaled version of the target symbol constellation is reduced.
