Power Amplifiers, Transceivers and Base Stations
A power amplifier and signal technology, applied in the fields of power amplifiers, transceivers and base stations, can solve the problems of difficulty, low efficiency, wide radio frequency operating bandwidth, etc.
Active Publication Date: 2016-09-28
HUAWEI TECH CO LTD
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- Description
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- Application Information
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Problems solved by technology
However, in the Doherty power amplifier, since the design of the combined output circuit is related to the operating frequency, after the operating frequency deviates from the set center frequency, the working state deviates from the optimal active load pulling state, resulting in a decrease in efficiency. Wide RF operating bandwidth
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[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] figure 1 is a schematic structural diagram of the power amplifier provided by Embodiment 1 of the present invention. The power amplifier provided by the embodiment of the present invention can be integrated in any network element equipment that needs to perform wireless signal power amplification, such as a base station.
[0026] Suc...
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Embodiments of the present invention provide a power amplifier, a transceiver, and a base station. The power amplifier includes: a signal control unit, configured to generate a mode control signal and an auxiliary power amplifier control signal; a signal processing unit, configured to separately process an envelope signal and a radio-frequency signal; an envelope modulator, configured to output a fixed voltage or output an amplified envelope signal under the control of the mode control signal; a primary power amplifier, configured to perform amplification processing on the received radio-frequency signal that is input from the signal processing unit; and at least one auxiliary power amplifier, configured to operate or be disabled under the control of the auxiliary power amplifier control signal, and when in an operating state, perform amplification processing on the received radio-frequency signal that is input from the signal processing unit. The power amplifier, the transceiver, and the base station that are provided in the embodiments of the present invention optimize operating performance of the power amplifier.
Description
technical field [0001] The invention relates to wireless communication technology, in particular to a power amplifier, transceiver and base station. Background technique [0002] The power amplifier is an indispensable part of the wireless base station, and the efficiency of the power amplifier is the decisive factor affecting the efficiency of the base station. At present, in order to improve the utilization efficiency of spectrum, wireless communication adopts a variety of modulation signals of different formats, and these modulation signals have different peak-to-average ratios. The peak-to-average ratio signal has high requirements on the power amplifier of the base station, so the power amplifier of the base station can use the power back-off method to amplify these peak-to-average ratio signals without distortion, but this is very inefficient, and high-efficiency power Amplifiers mainly include envelope tracking amplifiers and Doherty power amplifiers. [0003] The e...
Claims
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IPC IPC(8): H04W52/52H03F3/20
CPCH03F1/0288H03F1/0222H03F3/189H03F3/19H03F3/245H03F3/602H03F3/72H03F2200/451H03F2203/7215H03F2203/7221H03F2203/7236H04B1/40H04W88/08
Inventor 戈黎明孙捷苏永革
Owner HUAWEI TECH CO LTD