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公开(公告)号：US20220146623A1
公开(公告)日：2022-05-12
申请号：US17581176
申请日：2022-01-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dapeng Lao , Jinnan Liu , Ben Wang , Mu Zhou
IPC: G01S7/03 , G01S13/06 , G01S13/931
Abstract: A radar system (400) and a vehicle are provided, so that when high angular resolution is obtained, a quantity of transmit antennas and a quantity of receive antennas are reduced, to reduce design and processing difficulty. The radar system (400) includes: a transmitter (401), configured to transmit a radar signal; and a receiver (402), configured to receive an echo signal obtained after the radar signal is reflected by a target, where a transmit antenna array of the transmitter (401) and a receive antenna array of the receiver (402) are used to form a virtual linear array and a virtual planar array, the virtual linear array includes a uniform linear array in a first direction, the virtual planar array includes a uniform planar array, and a first spacing between two adjacent array elements in the uniform linear array is less than a second spacing between two adjacent array elements in the first direction in the uniform planar array.
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公开(公告)号：US11088743B2
公开(公告)日：2021-08-10
申请号：US16399079
申请日：2019-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejian Li , Jinnan Liu
Abstract: A beamforming training method and apparatus relating to the field of beamforming training technologies, where the beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information indicates the second device not to perform an initiator sector sweep (ISS), sending, by the first device, a sector sweep frame of a responder sector sweep (RSS) to the second device, and receiving, by the first device, feedback information obtained by the second device during the RSS. Hence, beamforming training flexibility can be improved.
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公开(公告)号：US10979187B2
公开(公告)日：2021-04-13
申请号：US16180900
申请日：2018-11-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yongping Zhang , Jinnan Liu
Abstract: This application provides a reference signal transmission method and an apparatus, to resolve a prior-art problem of relatively high overheads of resources occupied by transmitted reference signals in a communications system. The method includes: configuring, by a transmitting device, one reference signal group corresponding to one port in the first time symbol, and configuring one reference signal corresponding to the port in each of time symbols except the first time symbol. This reduces overheads of resources occupied by transmitted reference signals in the communications system and improves service data transmission efficiency while ensuring that a receiving device can obtain a channel parameter of the port.
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公开(公告)号：US10728057B2
公开(公告)日：2020-07-28
申请号：US16182064
申请日：2018-11-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinnan Liu , Dejian Li , Jiamin Chen , Yongping Zhang
IPC: H04L5/00 , H04L25/03 , H04L25/02 , H04B7/06 , H04W8/08 , H04L27/26 , H04W24/10 , H04W84/12 , H04W16/28
Abstract: A training packet sending method and apparatus, where the method includes generating, by a first device, a training packet, where the training packet includes a preamble, a header, and a training field, and the header includes at least a legacy header, and repeatedly sending, by the first device, the preamble using N channels, sending the legacy header in the header using the N channels, and sending the training field to at least one second device using H channels of the N channels, where N is greater than 1, and H is greater than 1 and less than or equal to N.
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公开(公告)号：US10454663B2
公开(公告)日：2019-10-22
申请号：US15388381
申请日：2016-12-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jinnan Liu , Shulan Feng
IPC: H04L5/14 , H04B1/525 , H04W72/04 , H04L25/02 , H04B17/345 , H04B17/318 , H04B1/711
Abstract: Embodiments of the present invention disclose a wireless communications method and system, and a full-duplex wireless transceiver, where the method includes: modulating a transmit digital signal into a first radio frequency signal and outputting the first radio frequency signal to a transmit antenna; then performing, under control of a pre-generated control signal, phase adjustment and amplitude adjustment on the first radio frequency signal and obtaining a cancellation signal; performing self-interference cancellation on a second radio frequency signal received from a radio air interface by using a receive antenna and the cancellation signal so as to generate a third radio frequency signal obtained after self-interference cancellation; and finally demodulating the third radio frequency signal into a receive digital signal.
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Patent Agency Ranking
公开(公告)号：US20190268055A1
公开(公告)日：2019-08-29
申请号：US16399079
申请日：2019-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejian Li , Jinnan Liu
Abstract: A beamforming training method and apparatus relating to the field of beamforming training technologies, where the beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information indicates the second device not to perform an initiator sector sweep (ISS), sending, by the first device, a sector sweep frame of a responder sector sweep (RSS) to the second device, and receiving, by the first device, feedback information obtained by the second device during the RSS. Hence, beamforming training flexibility can be improved.
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公开(公告)号：US20150198696A1
公开(公告)日：2015-07-16
申请号：US14624162
申请日：2015-02-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinnan Liu
CPC classification number: G01S5/10 , G01S1/20 , G01S5/0221 , G01S5/0236 , G01S5/06 , H04L5/0048 , H04W64/00
Abstract: The present invention relates to a method for terminal positioning. The method comprises: generating cell-specific reference signals CRSs, and transmitting the CRSs on one or more ports used for transmitting the CRSs; generating a positioning reference signal PRS, and transmitting the PRS on one of the one or more ports used for transmitting the CRSs. The method for terminal positioning provided by the embodiment of the present invention can reduce an impact caused by the limited number of symbols for transmitting the PRS, and increase the number of reference signal symbols available for positioning within a subframe, thereby reducing an impact of a secondary peak and enhancing the energy of a primary peak.
Abstract translation: 本发明涉及终端定位方法。 该方法包括：生成小区特定参考信号CRS，以及在用于发送CRS的一个或多个端口上发送CRS; 生成定位参考信号PRS，并且在用于发送CRS的一个或多个端口之一上发送PRS。 由本发明实施例提供的用于终端定位的方法可以减少由用于发送PRS的有限数量的符号引起的影响，并且增加可用于在子帧内定位的参考信号符号的数量，从而减少 二次峰值，提高主峰的能量。
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公开(公告)号：US20230184886A1
公开(公告)日：2023-06-15
申请号：US18164398
申请日：2023-02-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jintai Zhu , Dapeng Lao , Dejian Li , Jinnan Liu , Ben Wang
CPC classification number: G01S7/356 , G01S13/584
Abstract: This disclosure provides a signal processing method and apparatus. The method includes: obtaining Nr1×M1 signals, where the Nr1×M1 signals are echo signals of M1 signals that are sent by a radar to a target in a SIMO mode; obtaining Nt×Nr2×M2 signals, where the Nt×Nr2×M2 signals are echo signals of M2 signals that are sent by the radar to the target in a MIMO mode; performing first signal processing on the Nr1×M1 signals to obtain first processing data, where the first signal processing includes sequentially performing range FFT analysis, linear prediction, and Doppler FFT analysis; performing second signal processing on the Nt×Nr2×M2 signals to obtain second processing data, where the second signal processing includes range FFT analysis and Doppler FFT analysis; and performing velocity matching ambiguity resolution processing based on the first processing data and the second processing data.
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公开(公告)号：US11388029B2
公开(公告)日：2022-07-12
申请号：US16897021
申请日：2020-06-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinnan Liu , Dejian Li , Jiamin Chen , Yongping Zhang
IPC: H04L25/03 , H04L25/02 , H04B7/06 , H04L5/00 , H04W8/08 , H04L27/26 , H04W24/10 , H04W84/12 , H04W16/28
Abstract: A training packet sending method and apparatus, where the method includes generating, by a first device, a training packet, where the training packet includes a preamble, a header, and a training field, and the header includes at least a legacy header, and repeatedly sending, by the first device, the preamble using N channels, sending the legacy header in the header using the N channels, and sending the training field to at least one second device using H channels of the N channels, where N is greater than 1, and H is greater than 1 and less than or equal to N.
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公开(公告)号：US20220107390A1
公开(公告)日：2022-04-07
申请号：US17554605
申请日：2021-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen Yang , Jinnan Liu , Jiamin Chen , Pei Liu
IPC: G01S7/41 , G01S13/931 , G01S7/40
Abstract: A radar system includes a first radar sensor comprising a data combination system and a plurality of radar monolithic chips, wherein each radar monolithic chip includes a first radio frequency front end and a first microprocessor. The first microprocessor is configured to preprocess echo data obtained by the first radio frequency front end. The data combination system is configured to combine and transmit the preprocessed echo data, wherein a processor performs post-processing on the preprocessed echo data to generate point cloud data of the radar system.
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