Huawei Technologies Co., Limited

Xianfeng Li

Yanzhao Pang

Jun Li

Xuekun Zhang

Hui Song

Huaping Shi

Sergio Bianchi

Christian Mazzucco

Xiaobin Song

Bangmei Deng

Yaoming Chen

Jian Pu

A receiving device and signal processing method, the method including monitoring quality parameters of N received signals in real time, wherein the N received signals are obtained by N receive antennas from a same transmit antenna, predicting, according to the quality parameters, whether quality of a first combined signal that is obtained after combination processing is performed on the N received signals is superior to quality of a received signal whose quality is optimal in the N received signals, determining the first combined signal as a to-be-processed signal in response to predicting that the quality of the first combined signal is superior to the quality of the received signal, and determining a to-be-processed signal according to M received signals of the N received signals in response to predicting that the quality of the first combined signal is inferior to the quality of the received signal.

Receiving device and received signal processing method

The present invention relates to the field of communications technologies and discloses a data processing method and apparatus to obtain a DPD non-linear distortion compensation coefficient under a QPSK mode. The embodiments of the present invention receive a first data flow, and perform interpolation into the first data flow to obtain a second data flow; receive a third data flow, and calculate a data flow signal quality difference between the third data flow and the second data flow; and obtain a DPD non-linear distortion compensation coefficient according to the data flow signal quality difference and the third data flow or the second data flow. The embodiments of the present invention are applicable to the scenarios of obtaining a DPD non-linear distortion compensation coefficient in QPSK mode.

Data processing method and apparatus

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.

Method for implementing compensation filter and apparatus for signal bandwidth compensation

A transmitting device, a transmit power control method and a control device thereof in a microwave system are provided. The transmitting device includes a transmit power control module, adapted to acquire a switching event of a modulation mode of the microwave system, and adjust a transmit power of a radio frequency transmitting module according to the switching event and a preset power control mode; and the radio frequency transmitting module, adapted to send a microwave signal to a communication peer end by adopting the transmit power adjusted by the transmit power control module. Through setting the power control module, the gain of an AM microwave system is enhanced, and the service impairment caused by the AM microwave system when actuating an ATPC function is avoided. Correspondingly, a transmit power control method in a microwave system is also provided, which enables to switch to a low modulation mode as quickly as possible without causing the service impairment when the signal is deteriorated and enhances the system gain when the signal quality is improved.

Transmitting device, transmit power control method and control device thereof in microwave system

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Chengdu, China

Xianfeng Li