公开(公告)号：US20210167810A1

公开(公告)日：2021-06-03

申请号：US17172715

申请日：2021-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dror Regev ,  Doron Ezri ,  Shimon Shilo

IPC: H04B1/7107 ,  H04B1/04 ,  H04L5/14

Abstract: A radio frequency (RF) front end for wireless communications, in particular for use in a half duplex (HD) and/or full duplex (FD) transceiver. The RF front end is based on a quadrature balanced power amplifier (QBPA). The RF front end includes an antenna port for outputting a transmit signal to and receiving a receive signal from an antenna, and a receive port for outputting the receive signal to a signal processing section. Further, the QBPA is configured to receive a transmit input signal at a first port, receive a cancellation input signal at a fourth port, and receive the receive signal at a second port coupled to the antenna port.

公开(公告)号：US11303321B2

公开(公告)日：2022-04-12

申请号：US17172715

申请日：2021-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dror Regev ,  Doron Ezri ,  Shimon Shilo

IPC: H04B1/7107 ,  H04B1/04 ,  H04L5/14

Abstract: A radio frequency (RF) front end for wireless communications, in particular for use in a half duplex (HD) and/or full duplex (FD) transceiver. The RF front end is based on a quadrature balanced power amplifier (QBPA). The RF front end includes an antenna port for outputting a transmit signal to and receiving a receive signal from an antenna, and a receive port for outputting the receive signal to a signal processing section. Further, the QBPA is configured to receive a transmit input signal at a first port, receive a cancellation input signal at a fourth port, and receive the receive signal at a second port coupled to the antenna port.

公开(公告)号：US10326480B2

公开(公告)日：2019-06-18

申请号：US15803002

申请日：2017-11-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dror Regev ,  Shimon Shilo ,  Doron Ezri ,  Chirn Chye Boon ,  Xiang Yi ,  Junping Zhang ,  Gengen Hu ,  Dong Liang ,  Sheng Liu

IPC: H04B1/00 ,  H04B1/18

Abstract: The communication receiver comprises a mixer being configured to mix the communication signal with a periodic mixing signal having a mixing frequency fC to obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency fRF+fC and a second frequency spectrum portion comprising the spectral range of interest being situated around fRF−fC; a first demodulator being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion on the basis of a first local oscillator frequency fLO1; and a second demodulator being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion on the basis of a second local oscillator frequency fLO2.