公开(公告)号：US20190280730A1

公开(公告)日：2019-09-12

申请号：US16424500

申请日：2019-05-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lie ZHANG ,  Erni ZHU ,  Yuxiang XIAO

IPC: H04B1/62 ,  H04B1/04

Abstract: This application relates to the field of communications technologies, and in particular, to a digital predistortion processing method and apparatus. This application provides a digital predistortion processing method and apparatus. Digital predistortion processing of a multichannel power amplifier is supported through deprecoding processing by using one feedback link and one digital predistortion processor. In addition, after being amplified by a power amplifier, a precoded signal is fed back to the feedback link for predistortion parameter calculation, to improve quality of a transmit signal. The digital predistortion processing method and apparatus that are provided in embodiments of this application are intended to improve output linearity and efficiency of a multi-transmit-channel power amplifier while reducing implementation costs and complexity of a transmit device, and further improve overall system performance.