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A power amplifier, radio frequency remote unit and base station

A technology of power amplification and power amplifier, which is applied in the field of communication and can solve the problems of limited power amplifier efficiency improvement

Active Publication Date: 2021-06-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a power amplification device, a remote radio unit and a base station, which are used to solve the problem that the efficiency of the power amplifier is limited when the power amplification device based on the existing structure is working.

Method used

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  • A power amplifier, radio frequency remote unit and base station
  • A power amplifier, radio frequency remote unit and base station
  • A power amplifier, radio frequency remote unit and base station

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Embodiment Construction

[0031] The application will be further described below in conjunction with the accompanying drawings.

[0032] The solutions described in the embodiments of the present application can be used in various communication systems, such as the second generation (2ndGeneration, 2G) communication system, the third generation (3rd Generation, 3G) communication system, long term evolution (Long TermEvolution, LTE) In the system, or in the fifth generation (5th Generation, 5G) communication system and more possible communication systems for subsequent evolution.

[0033] The power amplifying device provided in the embodiment of the present application can be integrated in any network element equipment that needs to amplify wireless signal power, such as a base station. The power amplifying device provided in the embodiment of the present application may work in the radio frequency part of the base station, for example, may be arranged in a radio remote unit (Radio Remote Unit, RRU) of t...

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Abstract

A power amplifying device, a radio remote unit and a base station are used to improve power amplifier efficiency. The power amplification device includes an envelope modulator (201), a main power amplifier (202) and a first auxiliary power amplifier (203). The envelope modulator (201), connected with the drain of the main power amplifier (202), is used to obtain the envelope voltage according to the received envelope signal, and outputs the envelope voltage to the drain of the main power amplifier (202); The power amplifier (202) is used to amplify the signal input by the gate of the main power amplifier (202), and by being connected with the envelope modulator (201), the envelope received from the envelope modulator (201) Voltage as operating voltage, and by being connected with the first auxiliary power amplifier (203), to the drain electrode output envelope voltage of the first auxiliary power amplifier (203); The first auxiliary power amplifier (203) is to the first auxiliary power amplifier ( 203) the gate input signal is amplified and connected through the main power amplifier (202), and the envelope voltage received from the main power amplifier (202) is used as the working voltage.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a power amplification device, a remote radio unit and a base station. Background technique [0002] A power amplifier (Power Amplifier, PA) is an important part of a wireless communication base station. The power amplifier can be referred to simply as a power amplifier. The efficiency of the power amplifier determines the power consumption, size, and thermal design of the base station. At present, in order to improve spectrum utilization efficiency, wireless communication uses a variety of modulation signals of different formats, such as Orthogonal Frequency Division Multiplexing (OFMA), Code-Division Multiple Access (CDMA), Time division multiple access (TDMA), etc., according to relevant protocols, signals of these systems have different peak-to-average power ratios (Peak-to-Average Power Ratio, PAPR), for example, the peak-to-average power ratio of OFDM si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F3/20
CPCH03F3/20H03F1/0288H03F3/19H03F3/245H03F2200/102H03F2200/451H03F1/0222H03F3/211
Inventor 张顺忠张立鹏蔡中华
Owner HUAWEI TECH CO LTD