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公开(公告)号：US20210255275A1
公开(公告)日：2021-08-19
申请号：US17225507
申请日：2021-04-08
Applicant: Huawei Technologies Co., Ltd.
IPC: G01S7/02 , H04W72/04 , G01S13/931
Abstract: A detection method includes determining a first frequency point of N frequency points, transmitting a radio signal in a first frequency band in N frequency bands. One of the N frequency bands partially overlaps at least one frequency band in other N−1 frequency bands, and an absolute value of a difference between lowest frequencies of any two frequency bands of the N frequency bands is not less than a first threshold (F), or the N frequency bands have at least one second frequency band that partially overlaps the first frequency band, and an absolute value of a difference between a lowest frequency of each second frequency band and a lowest frequency of the first frequency band is not less than F.
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公开(公告)号：US12210113B2
公开(公告)日：2025-01-28
申请号：US17390310
申请日：2021-07-30
Applicant: Huawei Technologies Co., Ltd.
IPC: G01S7/02 , G01S13/87 , G01S13/931 , H04L67/12
Abstract: A method related to processing interference between cooperative radars, where a radar obtains configuration information used to indicate a ratio of a quantity of first data update periods to a quantity of second data update periods in a sending period. The first data update period is used to send a first radio signal, and the second data update period is used to send a second radio signal. Waveform configurations of the first radio signal and the second radio signal are different, to effectively reduce mutual interference between the first radio signal and the second radio signal.
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公开(公告)号：US12204044B2
公开(公告)日：2025-01-21
申请号：US17462690
申请日：2021-08-31
Applicant: Huawei Technologies Co., Ltd.
IPC: G01S7/02 , G01S13/931
Abstract: A method includes determining a first time domain range, where the first time domain range is one of L time domain ranges, and transmitting a first radio signal in the first time domain range, where any one of the L time domain ranges partially overlaps at least one of the other L−1 time domain ranges, and an absolute value of a difference between time domain start positions of any two of the L time domain ranges is not less than a first threshold F, and is less than a time domain length of the first time domain range.
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公开(公告)号：US12055625B2
公开(公告)日：2024-08-06
申请号：US17218534
申请日：2021-03-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G01S13/931 , G01S7/02 , G01S7/35 , G01S13/72
CPC classification number: G01S13/931 , G01S7/024 , G01S7/352 , G01S13/72
Abstract: A radar signal processing method and an apparatus, and a storage medium that are applied to a first radar. The method includes: determining that a polarization direction of the first radar is a first angle, where the first radar is located at a first vehicle; and transmitting a radar signal based on the polarization direction of the first radar, where a detection direction of the first radar is opposite to a detection direction of a second radar located at the first vehicle, and a polarization direction of the second radar is a second angle; and the first angle and the second angle are orthogonal.
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公开(公告)号：US11982731B2
公开(公告)日：2024-05-14
申请号：US17238276
申请日：2021-04-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G01S13/58 , G01S7/35 , G01S13/536
CPC classification number: G01S13/584 , G01S7/352 , G01S13/536
Abstract: This application provides a radar signal processing method and apparatus, which are applicable to the waveform design of a millimeter-wave radar. The radar signal processing method is applicable to an apparatus, for example, a millimeter-wave radar or a chip system inside the millimeter-wave radar, and the method includes: transmitting a first radar signal on a first frequency band; transmitting a second radar signal on a second frequency band; receiving a first reflected signal and a second reflected signal, where the first reflected signal is an electromagnetic wave reflected by a target object in response to the first radar signal, and the second reflected signal is an electromagnetic wave reflected by the target object in response to the second radar signal; and obtaining at least one of range information, velocity information, and angle information of the target object.
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Patent Agency Ranking
公开(公告)号：US11754668B2
公开(公告)日：2023-09-12
申请号：US17225507
申请日：2021-04-08
Applicant: Huawei Technologies Co., Ltd.
IPC: G01S7/02 , G01S13/931 , H04W72/0453
CPC classification number: G01S7/0232 , G01S13/931 , H04W72/0453
Abstract: A detection method includes determining a first frequency point of N frequency points, transmitting a radio signal in a first frequency band in N frequency bands. One of the N frequency bands partially overlaps at least one frequency band in other N−1 frequency bands, and an absolute value of a difference between lowest frequencies of any two frequency bands of the N frequency bands is not less than a first threshold (F), or the N frequency bands have at least one second frequency band that partially overlaps the first frequency band, and an absolute value of a difference between a lowest frequency of each second frequency band and a lowest frequency of the first frequency band is not less than F.
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17.发明申请公开(公告)号：US20230053033A1
公开(公告)日：2023-02-16
申请号：US17970949
申请日：2022-10-21
Applicant: Huawei Technologies Co., Ltd.
Abstract: A method for controlling radar frequency hopping includes determining start frequencies of a plurality of frequency modulated continuous wave (FMCWs) based on a first function, and controlling a radar to sequentially transmit the plurality of FMCWs by performing frequency hopping based on the determined start frequencies.
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公开(公告)号：US20220236368A1
公开(公告)日：2022-07-28
申请号：US17717646
申请日：2022-04-11
Applicant: Huawei Technologies Co., Ltd.
Abstract: A transmission control method includes steps for obtaining interference information of a first radar on a first frequency band, for example, through listening before transmission. The interference information represents a degree to which the first radar is interfered with on the first frequency band. Transmission duration of the first radar on the first frequency band is determined based on the interference information, where the interference information indicates either a difference between the transmission duration and an initial transmission duration of the first radar, or the transmission duration.
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公开(公告)号：US20220171055A1
公开(公告)日：2022-06-02
申请号：US17673159
申请日：2022-02-16
Applicant: Huawei Technologies Co., Ltd.
IPC: G01S13/931 , G01S7/02 , G01S7/52
Abstract: A signal transmission method includes a radar detection apparatus selecting a transmit frequency band from a predefined or pre-specified first frequency band. The first frequency band is pre-divided into M sub-frequency bands, and the transmit frequency band includes N sub-frequency bands in the M sub-frequency bands, where a bandwidth of the transmit frequency band is greater than or equal to an operating bandwidth of the radar detection apparatus. A sum of bandwidths of any N−1 sub-frequency bands in the N sub-frequency bands is less than the operating bandwidth of the radar detection apparatus. In addition, a minimum quantity of sub-frequency bands is used to transmit a signal.
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公开(公告)号：US20210356556A1
公开(公告)日：2021-11-18
申请号：US17390310
申请日：2021-07-30
Applicant: Huawei Technologies Co., Ltd.
IPC: G01S7/02 , G01S13/931 , G01S13/87
Abstract: A method related to processing interference between cooperative radars, where a radar obtains configuration information used to indicate a ratio of a quantity of first data update periods to a quantity of second data update periods in a sending period. The first data update period is used to send a first radio signal, and the second data update period is used to send a second radio signal. Waveform configurations of the first radio signal and the second radio signal are different, to effectively reduce mutual interference between the first radio signal and the second radio signal.
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