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公开(公告)号:US20220268912A1
公开(公告)日:2022-08-25
申请号:US17740487
申请日:2022-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Meihong ZHANG , Xiangwen GUO , Jiahui ZHANG , Xiao HAN , Rui DU , Chenchen LIU , Li YAN , Xuming FANG
IPC: G01S13/06
Abstract: A method for assisting in locating a target object, a method for locating a target object, and an apparatus. In an embodiment, the method for assisting in locating a target object is applied to a station (STA), and the method includes: receiving a wireless sensing sounding frame including radar measurement indication information from an access point (AP); sending an uplink data packet to the AP, recording a first sending moment, and performing radar measurement on a target object based on the radar measurement indication information to obtain a radar measurement result; receiving a downlink data packet from the AP, and recording a first receiving moment; and sending the first sending moment, the first receiving moment and the radar measurement result to the AP.
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公开(公告)号:US20220066018A1
公开(公告)日:2022-03-03
申请号:US17454101
申请日:2021-11-09
Applicant: Huawei Technologies Co., Ltd.
Inventor: Xiao HAN , Cailian DENG , Rui DU , Chenchen LIU , Jian YU , Meihong ZHANG , Li YAN , Yan LONG
Abstract: A radar measurement method and an apparatus are disclosed, which relate to the field of communications technologies, and are used to support radar measurement in a wireless local area network (WLAN). The method includes: An access point (AP) generates a first frame, where the first frame includes radar measurement information. Then the AP sends the first frame to M stations (STAs), to configure the way the M STAs perform radar measurement. This application is applicable to a radar measurement procedure.
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公开(公告)号:US20250097078A1
公开(公告)日:2025-03-20
申请号:US18962373
申请日:2024-11-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Rui DU , Yan XIN , Xiao HAN , Gerile NAREN , Mengshi HU
Abstract: The present disclosure relates to sensing methods, apparatuses, and systems. In one example method, a first device generates indication information. The indication information indicates a format of a first training unit in a training field, the first training unit is used by a second device to perform sensing measurement, a length of the first training unit is longer than a length of a second training unit, and the second training unit includes a training subfield indicated by a first field and a training subfield indicated by a second field. The first device sends the indication information to the second device.
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公开(公告)号:US20250024503A1
公开(公告)日:2025-01-16
申请号:US18903177
申请日:2024-10-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Mengshi HU , Xiao HAN , Jian YU , Rui DU , Gerile NAREN , Yan XIN , Jung Hoon SUH
IPC: H04W74/0816 , H04L1/00 , H04W74/08
Abstract: This application relates to the field of WLAN technologies, and in particular, to a null data physical layer protocol data unit transmitting method and an apparatus, and may be used in a wireless communication system that supports the 802.11be standard or the EHT standard. In the method, a first device transmits a sensing NDPA frame, where the sensing NDPA frame indicates to transmit an NDP; and then, the first device transmits the NDP, where the NDP is a first NDP or a second NDP. A physical layer version of the first NDP is different from a physical layer version of the second NDP. Correspondingly, a second device receives the sensing NDPA frame and the NDP from the first device.
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公开(公告)号:US20240121306A1
公开(公告)日:2024-04-11
申请号:US18541477
申请日:2023-12-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Mengshi HU , Xiao HAN , Rui DU , Jian YU , Chenchen LIU , Yi LV , Xun YANG
Abstract: This application provides a feedback indication method and apparatus, to more comprehensively indicate a feedback, so as to improve applicability of a sensing technology in a scenario of a plurality of devices and a plurality of interactions. The method and the apparatus may be applied to a communication system. The method includes: A first device generates a first frame, and sends the first frame. The first frame includes first information, and the first information indicates a feedback type of a first feedback and/or a feedback type of a second feedback. The first feedback and the second feedback are feedbacks at different levels.
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公开(公告)号:US20240031050A1
公开(公告)日:2024-01-25
申请号:US18446764
申请日:2023-08-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Rui DU , Qian ZHANG , Xiao HAN , Xun YANG , Chenchen LIU , Meihong ZHANG , Yingxiang SUN , Yun ZHANG , Yang LI
CPC classification number: H04J13/0014 , H04L25/0242
Abstract: This application discloses a signal processing method and an apparatus. The method includes: A transmit device generates a PPDU, and sends the PPDU; and a receive device receives the PPDU, and processes M sequences carried in the PPDU. The PPDU shown in this application includes a first field, the first field is used for carrying M sequences, the M sequences correspond to M space-time streams, one sequence corresponds to one space-time stream, and M is a positive integer. According to the method provided in this application, sequence sending efficiency can be effectively improved.
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公开(公告)号:US20240019540A1
公开(公告)日:2024-01-18
申请号:US18338965
申请日:2023-06-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Rui DU , Xiao HAN , Chenchen LIU , Meihong ZHANG , Wei LIN , Xun YANG , Zhengchun ZHOU , Xianfu LEI , Xiaohu TANG
Abstract: A data transmission method. A physical layer protocol data unit (PPDU) is generated. The PPDU includes a training field. The training field includes a sequence used for target sensing. The PPDU is sent.
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公开(公告)号:US20240007885A1
公开(公告)日:2024-01-04
申请号:US18366107
申请日:2023-08-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Chenchen LIU , Xiao HAN , Rui DU , Meihong ZHANG , Yingxiang SUN
IPC: H04W24/08
CPC classification number: H04W24/08
Abstract: A method for sending a measurement packet and a communication apparatus. The method includes: a first wireless device sends a trigger frame, where the trigger frame is used to trigger a plurality of second wireless devices to send measurement packets in an orthogonal frequency division multiple access (OFDMA) manner; and the first wireless device receives the measurement packets sent by the plurality of second wireless devices in the OFDMA manner. Based on the method, the measurement packet sent by each second wireless device occupies only some tones of an uplink transmission bandwidth. This improves power spectral density of the measurement packet and improves precision of measuring channel information by the first wireless device.
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公开(公告)号:US20220263640A1
公开(公告)日:2022-08-18
申请号:US17668207
申请日:2022-02-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Chenchen LIU , Huangxun CHEN , Xiao HAN , Rui DU , Meihong ZHANG , Yunbo LI , Qian ZHANG , Jia HE
IPC: H04L5/00
Abstract: A method includes, in accordance with some implementations, sending, a measurement station, a trigger frame to a signal source station, where the trigger frame carries pilot format information, and the pilot format information is used to indicate a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame. The measurement station receives an illumination frame from the signal source station, where the illumination frame is the signal frame triggered by the trigger frame. The measurement station analyzes pilot information in the illumination frame to obtain sensing information in the illumination frame, where the sensing information is used to indicate physical information of an object surrounding the signal source station and the measurement station.
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公开(公告)号:US20250070842A1
公开(公告)日:2025-02-27
申请号:US18945006
申请日:2024-11-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Paul BRENNAN , Kevin CHETTY , Fabiola COLONE , Rui DU , Xiao HAN
Abstract: This application provides example multi-carrier signal processing methods and example related apparatuses. One example method includes obtaining a first multi-carrier signal. Compensation is performed on the first multi-carrier signal based on a channel state information phase difference of the first multi-carrier signal to obtain a second multi-carrier signal, where a channel state information phase difference of the second multi-carrier signal is zero, or a phase difference of the second multi-carrier signal is zero.
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