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

IPC: H04B1/04 ,  H03F1/32 ,  H03F3/195 ,  H03F3/21 ,  H03F3/24

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).

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

IPC: H03F1/32 ,  H03F3/213 ,  H04B1/04

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.

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

IPC: H03F1/32 ,  H03F3/213 ,  H04B1/04

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.

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

IPC: H04B1/00 ,  H04B1/04 ,  H03F1/32 ,  H03F3/195 ,  H03F3/21 ,  H03F3/24

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).