公开(公告)号：US11994576B2

公开(公告)日：2024-05-28

申请号：US17198785

申请日：2021-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Luzhou Xu ,  Ricky Lap Kei Cheung ,  Hsing Kuo Lo ,  Jianghua Ying ,  Yuan Su

IPC: G01S13/524 ,  G01S13/32 ,  G01S13/58 ,  G01S7/288 ,  G01S13/931

CPC classification number: G01S13/582 ,  G01S13/32 ,  G01S13/524 ,  G01S13/584 ,  G01S7/2883 ,  G01S13/931

Abstract: A radar system transmits pulses towards a target and receives pulses reflected back therefrom. Based on samples (of the received pulses) corresponding to a CPI, a first 2D matrix having a slow-time index and a fast-time index is generated. A slow-time FFT is performed to convert the slow-time index to a Doppler bin index to produce a second 2D matrix having the Doppler bin index and the fast-time index. Thereafter, a 1D interpolation is performed along the Doppler bin index to produce a third 2D matrix having a Velocity bin index and the fast-time index. Thereafter, a fast-time FFT is performed to convert the fast-time index to a Range bin index to produce a fourth 2D matrix having the Velocity bin index and a Range bin index. A distance to and a velocity of a target is determined based on the fourth 2D matrix.

公开(公告)号：US20210336638A1

公开(公告)日：2021-10-28

申请号：US17370657

申请日：2021-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Luzhou Xu ,  Ricky Lap Kei Cheung ,  Hsing Kuo Lo ,  Yan Li ,  Yuan Su

IPC: H04B1/00 ,  H04B1/04 ,  H04B7/0413

Abstract: Embodiments of this disclosure provide a system and method for wireless communication and wireless sensing in a low-cost common transceiver structure. In particular, the common transceiver structure may have a common digital-to-analog converter (DAC) configured to convert a digital wireless communication signal and a digital wireless sensing signal into an analog wireless communication signal and an analog wireless sensing signal, respectively. The common transceiver may also have a common transmitting antenna configured to transmit the analog wireless communication signal and the analog wireless sensing signal.

公开(公告)号：US20210266217A1

公开(公告)日：2021-08-26

申请号：US17193641

申请日：2021-03-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mu Zhou ,  Ricky Lap Kei Cheung ,  Yi Cao

IPC: H04L27/38 ,  H04L27/00 ,  H04L27/20 ,  H04L27/26

Abstract: An apparatus for correcting a deviation between a plurality of transmission channels includes a first transmission channel and a second transmission channel. The apparatus also includes a phase offset unit configured to set a phase offset between the first transmission channel and the second transmission channel such that a phase deviation between the first transmission channel and the second transmission channel deviates from zero, a power detection unit configured to detect signal powers of the first transmission channel and the second transmission channel under the phase offset, a processing unit configured to determine, based on the detected signal powers, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value includes a phase correction value, and a phase correction unit configured to set the phase correction value between the first transmission channel and the second transmission channel.

公开(公告)号：US20200328929A1

公开(公告)日：2020-10-15

申请号：US16913125

申请日：2020-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mu Zhou ,  Ricky Lap Kei Cheung ,  Yi Cao

IPC: H04L27/38 ,  H04L27/26 ,  H04L27/00 ,  H04L27/20

Abstract: An apparatus includes a phase offset unit configured to set a phase offset between the first transmission channel and the second transmission channel such that a phase deviation between the first transmission channel and the second transmission channel deviates from zero, a power detection unit configured to detect signal powers of the first transmission channel and the second transmission channel under the phase offset, a processing unit configured to determine, based on the detected signal powers, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value includes a phase correction value, and a phase correction unit configured to set the phase correction value between the first transmission channel and the second transmission channel.

公开(公告)号：US11444820B2

公开(公告)日：2022-09-13

申请号：US17193641

申请日：2021-03-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mu Zhou ,  Ricky Lap Kei Cheung ,  Yi Cao

IPC: H04L27/38 ,  H04L27/00 ,  H04L27/20 ,  H04L27/26

Abstract: An apparatus for correcting a deviation between a plurality of transmission channels includes a first transmission channel and a second transmission channel. The apparatus also includes a phase offset unit configured to set a phase offset between the first transmission channel and the second transmission channel such that a phase deviation between the first transmission channel and the second transmission channel deviates from zero, a power detection unit configured to detect signal powers of the first transmission channel and the second transmission channel under the phase offset, a processing unit configured to determine, based on the detected signal powers, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value includes a phase correction value, and a phase correction unit configured to set the phase correction value between the first transmission channel and the second transmission channel.

公开(公告)号：US20210215816A1

公开(公告)日：2021-07-15

申请号：US17198785

申请日：2021-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Luzhou Xu ,  Ricky Lap Kei Cheung ,  Hsing Kuo Lo ,  Jianghua Ying ,  Yuan Su

IPC: G01S13/524 ,  G01S13/58 ,  G01S13/32 ,  G01S13/24 ,  G01S7/288

Abstract: A radar system transmits pulses towards a target and receives pulses reflected back therefrom. Based on samples (of the received pulses) corresponding to a CPI, a first 2D matrix having a slow-time index and a fast-time index is generated. A slow-time FFT is performed to convert the slow-time index to a Doppler bin index to produce a second 2D matrix having the Doppler bin index and the fast-time index. Thereafter, a 1D interpolation is performed along the Doppler bin index to produce a third 2D matrix having a Velocity bin index and the fast-time index. Thereafter, a fast-time FFT is performed to convert the fast-time index to a Range bin index to produce a fourth 2D matrix having the Velocity bin index and a Range bin index. A distance to and a velocity of a target is determined based on the fourth 2D matrix.

公开(公告)号：US10944618B2

公开(公告)日：2021-03-09

申请号：US16913125

申请日：2020-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mu Zhou ,  Ricky Lap Kei Cheung ,  Yi Cao

IPC: H04L27/38 ,  H04L27/00 ,  H04L27/20 ,  H04L27/26

Abstract: An apparatus includes a phase offset unit configured to set a phase offset between the first transmission channel and the second transmission channel such that a phase deviation between the first transmission channel and the second transmission channel deviates from zero, a power detection unit configured to detect signal powers of the first transmission channel and the second transmission channel under the phase offset, a processing unit configured to determine, based on the detected signal powers, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value includes a phase correction value, and a phase correction unit configured to set the phase correction value between the first transmission channel and the second transmission channel.

公开(公告)号：US11791847B2

公开(公告)日：2023-10-17

申请号：US17370657

申请日：2021-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Luzhou Xu ,  Ricky Lap Kei Cheung ,  Hsing Kuo Lo ,  Yan Li ,  Yuan Su

IPC: H04B1/00 ,  H04B1/04 ,  H04B7/0413

CPC classification number: H04B1/0003 ,  H04B1/04 ,  H04B7/0413

Abstract: Embodiments of this disclosure provide a system and method for wireless communication and wireless sensing in a low-cost common transceiver structure. In particular, the common transceiver structure may have a common digital-to-analog converter (DAC) configured to convert a digital wireless communication signal and a digital wireless sensing signal into an analog wireless communication signal and an analog wireless sensing signal, respectively. The common transceiver may also have a common transmitting antenna configured to transmit the analog wireless communication signal and the analog wireless sensing signal.