公开(公告)号：US20140184327A1

公开(公告)日：2014-07-03

申请号：US14198919

申请日：2014-03-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun LI ,  Xianfeng LI ,  Yanzhao PANG

IPC: H03F1/32

CPC classification number: H03F1/3241 ,  H03F1/3247 ,  H03F1/3294 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/336 ,  H04L27/368

Abstract: Embodiments of the present invention disclose a method for implementing a compensation filter and an apparatus for signal bandwidth compensation. The apparatus includes: a digital predistortion filtering unit, a compensation filter, a conversion unit, and a power amplifier; where the digital predistortion filtering unit receives an original signal, performs predistortion processing on the original signal; the compensation filter receives the predistortion signal, compensates for distortion caused during a process of transmitting the predistortion signal to the power amplifier, and outputs a compensated predistortion signal to the conversion unit; the conversion unit receives the compensated predistortion signal, converts the compensated predistortion signal into an analog signal, performs frequency mixing processing, and outputs a predistortion signal experiencing the frequency mixing to the power amplifier; the power amplifier receives the predistortion signal experiencing the frequency mixing, amplifies the predistortion signal experiencing the frequency mixing, and outputs an amplified signal.

Abstract translation: 本发明的实施例公开了一种用于实现补偿滤波器的方法和用于信号带宽补偿的装置。 该装置包括：数字预失真滤波单元，补偿滤波器，转换单元和功率放大器; 其中数字预失真滤波单元接收原始信号，对原始信号执行预失真处理; 补偿滤波器接收预失真信号，补偿在将预失真信号发送到功率放大器的过程中引起的失真，并将补偿的预失真信号输出到转换单元; 转换单元接收经补偿的预失真信号，将经补偿的预失真信号转换为模拟信号，进行混频处理，并将经频率混频的预失真信号输出到功率放大器; 功率放大器接收经历频率混合的预失真信号，放大经历频率混合的预失真信号，并输出放大的信号。