Patent ID: 9209753
Filing Date: 2015-12-08
Classification: H03F,H04B,H04L

Abstract:
1. A predistortion correction method comprising: performing, based on a digital predistortion model, non-linear processing on an input transmit signal to obtain higher-order distortion time-domain signals, wherein performing non-linear processing comprises using a set of non-linear operators from the digital predistortion model on the input transmit signal to obtain higher-order distortion time-domain signals; and obtaining, after performing processing on the higher-order distortion time-domain signals, a predistortion signal to be input to a power amplifier, wherein a process of converting the higher-order distortion time-domain signals to the predistortion signal comprises bandwidth limitation processing, so that the predistortion signal to be input to the power amplifier is a predistortion signal whose bandwidth is within a preset bandwidth.