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    Power amplifier control method and apparatus, and power amplifier control system
    1.
    发明授权
    Power amplifier control method and apparatus, and power amplifier control system 有权

    公开(公告)号：US10511266B2

    公开(公告)日：2019-12-17

    申请号：US16016394

    申请日：2018-06-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lipeng Zhang ,  Zhonghua Cai ,  Kaizhan Wang ,  Wei Jiao ,  Zhiyuan Pang ,  Sheng Zhu

    IPC: H03F3/68 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  H03F1/32 ,  H03F1/56 ,  H03F3/24 ,  H03F3/60

    Abstract: A power amplifier control method is disclosed. A phase modulation control signal may be generated according to an envelope signal that is output by a baseband unit. The phase modulation may be performed on a signal of a main power amplifier link and/or an auxiliary power amplifier link in the Doherty power amplifier circuit according to the phase modulation control signal, so that a phase difference between the signal of the main power amplifier link and the signal of the auxiliary power amplifier link after the phase modulation is a specified value corresponding to a current value of the envelope signal, where the specified value is an optimal phase value of a Doherty power amplifier circuit when the supply voltage of the Doherty power amplifier circuit is an envelope voltage corresponding to the current value of the envelope signal. High-efficiency power amplifier technology is realized.

    Power Amplifier, Radio Remote Unit, and Base Station
    2.
    发明申请
    Power Amplifier, Radio Remote Unit, and Base Station 审中-公开

    公开(公告)号：US20190190458A1

    公开(公告)日：2019-06-20

    申请号：US16284489

    申请日：2019-02-25

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lipeng Zhang ,  Zhonghua Cai ,  Ting Li ,  Kaizhan Wang

    IPC: H03F1/02 ,  H03F3/195 ,  H03F3/21 ,  H04B1/16 ,  H03F3/24 ,  H03F1/56

    Abstract: A power amplifier, a radio remote unit (RRU), and a base station, where the power amplifier includes an envelope controller, a main power amplifier, and an auxiliary power amplifier. The main power amplifier and the auxiliary power amplifier both set an envelope voltage output by the envelope modulator as operating voltages, and because the operating voltages of the main power amplifier and the auxiliary power amplifier may be adjusted simultaneously, symmetry of the power amplifier is improved, and an efficiency loss occurring probability is low, thereby enhancing efficiency of the power amplifier.

    Power amplifier, radio remote unit, and base station
    4.
    发明授权
    Power amplifier, radio remote unit, and base station 审中-公开

    公开(公告)号：US10673384B2

    公开(公告)日：2020-06-02

    申请号：US16284489

    申请日：2019-02-25

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lipeng Zhang ,  Zhonghua Cai ,  Ting Li ,  Kaizhan Wang

    IPC: H03F1/02 ,  H04B1/16 ,  H03F1/56 ,  H03F3/195 ,  H03F3/21 ,  H03F3/24

    Abstract: A power amplifier, a radio remote unit (RRU), and a base station, where the power amplifier includes an envelope controller, a main power amplifier, and an auxiliary power amplifier. The main power amplifier and the auxiliary power amplifier both set an envelope voltage output by the envelope modulator as operating voltages, and because the operating voltages of the main power amplifier and the auxiliary power amplifier may be adjusted simultaneously, symmetry of the power amplifier is improved, and an efficiency loss occurring probability is low, thereby enhancing efficiency of the power amplifier.

    Power amplification apparatus, remote radio unit, and base station
    7.
    发明授权
    Power amplification apparatus, remote radio unit, and base station 有权

    公开(公告)号：US11128259B2

    公开(公告)日：2021-09-21

    申请号：US16521517

    申请日：2019-07-24

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shunzhong Zhang ,  Lipeng Zhang ,  Zhonghua Cai

    IPC: H03F1/02 ,  H03F3/24 ,  H03F3/19 ,  H03F3/21

    Abstract: A power amplification apparatus, a remote radio unit, and a base station are provided to improve power amplification efficiency. The power amplification apparatus includes an envelope modulator, a main power amplifier, and a first auxiliary power amplifier. The envelope modulator is configured to obtain an envelope voltage based on a received envelope signal and output the envelope voltage to the drain of the main power amplifier. The main power amplifier is connected to the envelope modulator and configured to use the envelope voltage as an operating voltage, and is connected to the first auxiliary power amplifier, to output the envelope voltage to a drain of the first auxiliary power amplifier. The first auxiliary power amplifier is configured to use the envelope voltage received from the main power amplifier as an operating voltage.

    Power amplifier, radio remote unit, and base station
    8.
    发明授权
    Power amplifier, radio remote unit, and base station 有权

    公开(公告)号：US10230333B2

    公开(公告)日：2019-03-12

    申请号：US15888507

    申请日：2018-02-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lipeng Zhang ,  Zhonghua Cai ,  Ting Li ,  Kaizhan Wang

    IPC: H03F1/02 ,  H04B1/16 ,  H03F1/56 ,  H03F3/195 ,  H03F3/21 ,  H03F3/24

    Abstract: A power amplifier, a radio remote unit (RRU), and a base station, where the power amplifier includes an envelope controller, a main power amplifier, and an auxiliary power amplifier. The main power amplifier and the auxiliary power amplifier both set an envelope voltage output by the envelope modulator as operating voltages, and because the operating voltages of the main power amplifier and the auxiliary power amplifier may be adjusted simultaneously, symmetry of the power amplifier is improved, and an efficiency loss occurring probability is low, thereby enhancing efficiency of the power amplifier.

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