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公开(公告)号：US20170237455A1
公开(公告)日：2017-08-17
申请号：US15585642
申请日：2017-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Siqing Ye , Jinming Wang , Erni Zhu , Chen Wang , Lan You
CPC classification number: H04B1/0475 , H03F1/3247 , H03F3/19 , H03F3/21 , H03F3/24 , H03F2200/102 , H03F2200/451 , H03F2201/3233 , H04B2001/0408 , H04L25/49
Abstract: An analog predistorter (APD) core module including a radio frequency delay module, an envelope module, and a contact matrix module. The radio frequency delay module is configured to receive a feed-forward radio frequency signal, generate multiple radio frequency delay signals with different delays according to the feed-forward radio frequency signal, and output each radio frequency delay signal to the contact matrix module. The envelope module is configured to receive the feed-forward radio frequency signal, perform envelope detection on the feed-forward radio frequency signal to obtain multiple envelope signals with different delays, and output each envelope signal to the contact matrix module. The contact matrix module is configured to receive each radio frequency delay signal, each envelope signal, and a predistortion coefficient from an exterior source, and generate a predistortion signal according to the predistortion coefficient, each radio frequency delay signal, and each envelope signal.
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公开(公告)号：US09853664B2
公开(公告)日：2017-12-26
申请号：US15382030
申请日：2016-12-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xingwen Li , Wei Huang , Siqing Ye , Jinming Wang
CPC classification number: H04B1/0475 , H03F3/189 , H03F3/19 , H03F3/211 , H03F3/24 , H03F3/245 , H03F2200/102 , H03F2200/451 , H03F2203/21142 , H04B2001/0425
Abstract: A apparatus for radio frequency power amplification, a radio frequency power amplification method, a transmitter, and a base station that can reduce nonlinear signal distortion factors are disclosed. The radio frequency power amplification system includes: a radio frequency signal generation circuit, configured to process a baseband digital signal, to obtain an original radio frequency signal; a radio frequency signal processing circuit, configured to process the original radio frequency signal, to obtain N processed radio frequency signals, where N is greater than or equal to 2; a power amplifier, configured to perform power amplification on each of the N processed radio frequency signals, to obtain N amplified radio frequency signals; and a combiner, configured to combine the N amplified radio frequency signals.
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公开(公告)号：US20180191387A1
公开(公告)日：2018-07-05
申请号：US15909520
申请日：2018-03-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Rong , Fuquan Zhang , Jinming Wang , Bingxin Li , Chen Wang
Abstract: A signal processing arrangement for a transmitter includes an in-phase modulator configured to receive an in-phase signal (I) and configured to modulate the in-phase signal (I); a quadrature modulator configured to receive a quadrature signal (Q) and configured to modulate the quadrature signal (Q); an in-phase demodulator configured to demodulate the modulated in-phase signal (I) and to output a demodulated in-phase signal (I); a quadrature demodulator configured to demodulate the modulated quadrature signal (Q) and to output a demodulated quadrature signal (Q); an in-phase harmonic filter configured to perform a filtering on harmonics in the demodulated in-phase signal (I) and to output an in-phase digital signal (I); and a quadrature harmonic filter configured to perform a filtering on harmonics in the demodulated quadrature signal (Q) and to output a quadrature digital signal (Q).
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公开(公告)号：US20170149460A1
公开(公告)日：2017-05-25
申请号：US15382030
申请日：2016-12-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xingwen Li , Wei Huang , Siqing Ye , Jinming Wang
CPC classification number: H04B1/0475 , H03F3/189 , H03F3/19 , H03F3/211 , H03F3/24 , H03F3/245 , H03F2200/102 , H03F2200/451 , H03F2203/21142 , H04B2001/0425
Abstract: A apparatus for radio frequency power amplification, a radio frequency power amplification method, a transmitter, and a base station that can reduce nonlinear signal distortion factors are disclosed. The radio frequency power amplification system includes: a radio frequency signal generation circuit, configured to process a baseband digital signal, to obtain an original radio frequency signal; a radio frequency signal processing circuit, configured to process the original radio frequency signal, to obtain N processed radio frequency signals, where N is greater than or equal to 2; a power amplifier, configured to perform power amplification on each of the N processed radio frequency signals, to obtain N amplified radio frequency signals; and a combiner, configured to combine the N amplified radio frequency signals.
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Patent Agency Ranking
公开(公告)号：US11387785B2
公开(公告)日：2022-07-12
申请号：US17080058
申请日：2020-10-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yushan Zheng , Fuquan Zhang , Jinming Wang
Abstract: A radio frequency transmitter includes N transmit channels, where each transmit channel includes one nonlinear module, a primary correction circuit, coupled to each of N nonlinear modules that correspond to the N transmit channels, and configured to provide a primary correction signal for the N nonlinear modules, and N secondary correction circuits, where the N secondary correction circuits are coupled to the N nonlinear modules respectively, and each secondary correction circuit is configured to provide a secondary correction signal for a nonlinear module coupled to the secondary correction circuit.
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公开(公告)号：US20210044259A1
公开(公告)日：2021-02-11
申请号：US17080058
申请日：2020-10-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yushan Zheng , Fuquan Zhang , Jinming Wang
Abstract: A radio frequency transmitter includes N transmit channels, where each transmit channel includes one nonlinear module, a primary correction circuit, coupled to each of N nonlinear modules that correspond to the N transmit channels, and configured to provide a primary correction signal for the N nonlinear modules, and N secondary correction circuits, where the N secondary correction circuits are coupled to the N nonlinear modules respectively, and each secondary correction circuit is configured to provide a secondary correction signal for a nonlinear module coupled to the secondary correction circuit.
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公开(公告)号：US10516424B2
公开(公告)日：2019-12-24
申请号：US15909520
申请日：2018-03-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Rong , Fuquan Zhang , Jinming Wang , Bingxin Li , Chen Wang
Abstract: A signal processing arrangement for a transmitter includes an in-phase modulator configured to receive an in-phase signal (I) and configured to modulate the in-phase signal (I); a quadrature modulator configured to receive a quadrature signal (Q) and configured to modulate the quadrature signal (Q); an in-phase demodulator configured to demodulate the modulated in-phase signal (I) and to output a demodulated in-phase signal (I); a quadrature demodulator configured to demodulate the modulated quadrature signal (Q) and to output a demodulated quadrature signal (Q); an in-phase harmonic filter configured to perform a filtering on harmonics in the demodulated in-phase signal (I) and to output an in-phase digital signal (I); and a quadrature harmonic filter configured to perform a filtering on harmonics in the demodulated quadrature signal (Q) and to output a quadrature digital signal (Q).
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公开(公告)号：US10243600B2
公开(公告)日：2019-03-26
申请号：US15690860
申请日：2017-08-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Cheng Zhang , Jinming Wang , Chen Wang , Bingxin Li
Abstract: Embodiments of the present invention provide a receiver and a wireless communications apparatus. The receiver includes: an attenuation circuit, configured to receive an input signal, and obtain a first signal according to the input signal; a low-noise amplification circuit, configured to receive the first signal, and obtain a second signal according to the first signal; an orthogonal down-frequency conversion circuit, configured to receive the second signal, and process the second signal to obtain an output signal; and a control circuit, configured to separately control the attenuation circuit and the low-noise amplification circuit according to power of an interference signal included in the output signal, so as to determine whether the attenuation circuit attenuates the input signal and whether the low-noise amplification circuit amplifies the first signal.
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公开(公告)号：US09893748B2
公开(公告)日：2018-02-13
申请号：US15585642
申请日：2017-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Siqing Ye , Jinming Wang , Erni Zhu , Chen Wang , Lan You
CPC classification number: H04B1/0475 , H03F1/3247 , H03F3/19 , H03F3/21 , H03F3/24 , H03F2200/102 , H03F2200/451 , H03F2201/3233 , H04B2001/0408 , H04L25/49
Abstract: An analog predistorter (APD) core module including a radio frequency delay module, an envelope module, and a contact matrix module. The radio frequency delay module is configured to receive a feed-forward radio frequency signal, generate multiple radio frequency delay signals with different delays according to the feed-forward radio frequency signal, and output each radio frequency delay signal to the contact matrix module. The envelope module is configured to receive the feed-forward radio frequency signal, perform envelope detection on the feed-forward radio frequency signal to obtain multiple envelope signals with different delays, and output each envelope signal to the contact matrix module. The contact matrix module is configured to receive each radio frequency delay signal, each envelope signal, and a predistortion coefficient from an exterior source, and generate a predistortion signal according to the predistortion coefficient, each radio frequency delay signal, and each envelope signal.
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