Staas & Halsey LLP
Method for implementing compensation filter and apparatus for signal bandwidth compensation
An apparatus for signal bandwidth compensation is disclosed. 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.
HUAWEI TECHNOLOGIES CO., LTD.
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Yanzhao Jun Xianfeng
Pang Li Li