Huawei Technologies Co., Limited

Xikun Zhang

Jie Sun

Wei Chen

Wei Zhu Chen

Weimin Yin

Yijun Sun

Song Li

Siqing Ye

Yiping Sun

Qianhua Wei

Yongge Su

Yawen Zhang

Xuekun Li

Yanhui Wang

Qiao Wu

Dandong He

Xiaolun Wang

A method and network equipment for controlling power amplification are disclosed. The method for controlling power amplification includes outputting a voltage signal according to the state of network equipment. When the network equipment is in an idle state, at least one power amplifier transistor is switched off according to a voltage signal.

Method and device for controlling power amplification

A power amplification device, including a first amplification branch, a second amplification branch, a harmonic injection circuit, and a first output matching circuit. A first amplifier in the first amplification branch supports a first frequency. A second amplifier in the second amplification branch supports the first frequency and a second frequency, and the second amplifier is turned off for a signal of the first frequency that has a power value lower than an enabling threshold. The harmonic injection circuit injects a signal of the second frequency that is input from a second input terminal (I) to a signal of the first frequency that is input from a first input terminal (I) to obtain a signal of the first frequency that has undergone harmonic injection.

Power amplification device

A method and network equipment for controlling power amplification are disclosed. The method for controlling power amplification includes outputting a voltage signal according to the state of an NE. The voltage signal is applied to a grid electrode or a base electrode of at least one power amplifier transistor in a power amplifier.

One aspect of the present invention provides a method for improving power amplification efficiency of a Doherty power amplifier. The method is applied to a Doherty power amplifier that has two paths of Doherty circuit units connected in parallel. The method includes: when output power of the Doherty power amplifier is within a low out power range, adjusting, by a bias circuit, gate voltages of main power amplifiers and peak power amplifiers in the two paths of Doherty circuit units connected in parallel, in order to cause the peak power amplifiers to be in an off state, and the main power amplifiers in the two paths of Doherty circuit units connected in parallel to be in a main power amplification state and a peak power amplification state respectively.

Doherty power amplifier, and method and device for improving power amplification efficiency of Doherty power amplifier

A method and an NE for controlling power amplification are provided. The method for controlling power amplification includes: outputting a voltage signal according to the state of an NE; applying the voltage signal to a grid electrode or a base electrode of at least one power amplifier transistor in a power amplifier. Thus, static power dissipation of the power amplifier can be eliminated when no RF power is output, and the efficiency of the power amplifier can be improved by using the above method and NE.

A high-efficiency power amplifier is provided, including a drive amplifier and a final power amplifier, and further including a first digital pre-distortion (DPD) correction module and a second DPD correction module. The first DPD correction module is configured to pre-distort nonlinear characteristics of drive signals output by the drive amplifier, and the second DPD correction module is connected to the first DPD correction module in series, and is configured to pre-distort nonlinear characteristics of amplified signals output by the final power amplifier. Another high-efficiency power amplifier is also provided, including a drive amplifier and a final power amplifier, and further including a second multi-path control module, a fourth DPD correction module, and a second gating module. The overall efficiency of the high-efficiency power amplifier is increased by improving the working efficiency of the drive amplifier. Further, higher overall efficiency is also achieved for a power amplifier with a higher gain.

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Shenzhen, China

Xikun Zhang