公开(公告)号：US20240422586A1

公开(公告)日：2024-12-19

申请号：US18821580

申请日：2024-08-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui DU ,  Chenchen LIU ,  Mengshi HU ,  Gerile NAREN ,  Xiao HAN ,  Xun YANG

IPC: H04W24/02 ,  H04L45/74 ,  H04W84/12 ,  H04W84/18

Abstract: Embodiments of this application provide an information indication method and a communication apparatus. The method is applied to a wireless local area network system that supports various IEEE 802.11 protocols such as the 802.11bf series protocols. The method includes: generating a PPDU, where the PPDU includes sensing indication information, the sensing indication information indicates that the PPDU is a PPDU used for sensing measurement, and the PPDU is a directional multi-gigabit DMG single carrier mode PPDU, an enhanced directional multi-gigabit EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU; and sending the PPDU. In this manner, a sensing PPDU and a non-sensing PPDU in a communication system can be distinguished, so that a receive end optimizes sensing performance.

公开(公告)号：US20240056852A1

公开(公告)日：2024-02-15

申请号：US18492609

申请日：2023-10-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi HU ,  Yingxiang SUN ,  Chenchen LIU ,  Xiao HAN ,  Rui DU ,  Meihong ZHANG ,  Xun YANG

IPC: H04W24/08 ,  H04W24/02

CPC classification number: H04W24/08 ,  H04W24/02

Abstract: Embodiments of this application provide a communication method and apparatus, to improve robustness of a communication process and improve accuracy of a sensing result. The communication method includes: generating a first physical layer protocol data unit (PPDU), where the first PPDU includes a first field that indicates that a variation of a channel state does not exceed a threshold; and sending the first PPDU.

公开(公告)号：US20230016889A1

公开(公告)日：2023-01-19

申请号：US17951519

申请日：2022-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meihong ZHANG ,  Xiangwen GUO ,  Xiao HAN ,  Jiahui ZHANG ,  Rui DU ,  Chenchen LIU ,  Yan LONG ,  Yingxiang SUN

IPC: H04W16/28 ,  H04W24/10

Abstract: This provides a spatial multiplexing method and apparatus, to introduce WLAN sensing into a conventional spatial multiplexing mechanism and improve communication efficiency. The method includes: An AP sends a first request message to a first station and a second station, to request to measure channel quality in one or more sensing beam directions in a first SP; the AP sends a second request message to a third station and a fourth station, to request to measure channel quality in a communications beam direction in a second SP; the first station, the second station, the third station, and the fourth station separately perform measurement and report respective first measurement results; and the AP receives the first measurement results of the stations, and determines, based on the first measurement results, whether to perform spatial multiplexing on the first SP and the second SP.

公开(公告)号：US20220299629A1

公开(公告)日：2022-09-22

申请号：US17836659

申请日：2022-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen LIU ,  Baojian ZHOU ,  Xiao HAN ,  Rui DU ,  Meihong ZHANG

IPC: G01S13/84 ,  G01S7/00 ,  H04L27/26

Abstract: The disclosure provides ranging methods and apparatuses. One example method includes that a first device sends a first signal on a first channel. The first device receives, on a second channel, a second signal from a second device, where the second signal is a signal obtained after frequency conversion is performed on the first signal. The first device calculates a distance between the first device and the second device based on a phase difference between carriers of the second signal.

公开(公告)号：US20220006591A1

公开(公告)日：2022-01-06

申请号：US17342771

申请日：2021-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao HAN ,  Wei LIN ,  Jian YU ,  Cailian DENG ,  Rui DU ,  Xuming FANG

IPC: H04L5/00 ,  H04W52/02 ,  G01S7/41

Abstract: Embodiments of this application relate to the communications field, and in particular, to an information indication method and apparatus in the communications field. The embodiments of this application include: generating a PPDU including radar indication information, where the radar indication information is used to indicate that the PPDU is a PPDU used for radar testing, and transmitting the PPDU. According to the method provided in the embodiments of this application, the transmit end explicitly indicates that the PPDU is a PPDU used for radar testing rather than a PPDU used for communication between communications devices. When a receive end receives the PPDU, the receive end no longer monitors a channel, thereby reducing power consumption of the receive end.

公开(公告)号：US20250016726A1

公开(公告)日：2025-01-09

申请号：US18891295

申请日：2024-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui DU ,  Xiao HAN ,  Gerile NAREN ,  Mengshi HU ,  Xun YANG

IPC: H04W64/00 ,  H04W8/22 ,  H04W16/28

Abstract: Embodiments of this application disclose a monostatic sensing method and a related product. The method includes: performing monostatic sensing based on a first frame structure, to obtain a first sensing result; receiving a first request frame from a second device, where the first request frame is used to request to obtain a monostatic sensing result; sending a first response frame to the second device based on the first request frame, where the first response frame includes the first sensing result.

公开(公告)号：US20240284204A1

公开(公告)日：2024-08-22

申请号：US18654185

申请日：2024-05-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi HU ,  Xiao HAN ,  Rui DU ,  Yi LV ,  Xun YANG

IPC: H04W24/02 ,  H04W84/12

CPC classification number: H04W24/02 ,  H04W84/12

Abstract: This application provides a sensing method, an apparatus, and a system, to enable a plurality of measurement setups to share one measurement instance, to improve measurement efficiency. The method includes: A first device generates and sends first indication information, where the first indication information indicates that a first measurement setup and a second measurement setup share a first measurement instance. Correspondingly, a second device receives and parses the first indication information, to learn that the first measurement setup and the second measurement setup share the first measurement instance.

公开(公告)号：US20230345283A1

公开(公告)日：2023-10-26

申请号：US18341059

申请日：2023-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yingxiang SUN ,  Chenchen LIU ,  Xiao HAN ,  Rui DU ,  Meihong ZHANG ,  Xun YANG

IPC: H04W24/10

CPC classification number: H04W24/10

Abstract: A channel information feedback method. The method can be applied to a first wireless device, and includes: receiving a first message from a second wireless device, where the first message notifies channel information measurement, the first message carries first indication information related to the first wireless device, and the first indication information indicates a feedback condition; performing channel information measurement based on the first message; determining a first channel information variation based on currently measured channel information and historically measured channel information; and feeding back a measurement report to the second wireless device when the first channel information variation meets the feedback condition.

公开(公告)号：US20230132850A1

公开(公告)日：2023-05-04

申请号：US18147035

申请日：2022-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen LIU ,  Yunbo LI ,  Rui DU ,  Meihong ZHANG ,  Xiao HAN

IPC: G01S13/58 ,  G01S13/00 ,  G01S7/00 ,  H04W24/10 ,  H04W64/00

Abstract: This application provides a sensing measurement information exchange apparatus, applied to a first station. The apparatus includes: a transceiver unit, configured to receive sensing measurement report information sent by a second station, where the sensing measurement report information includes N groups of first measurement results, where the N groups of first measurement results are in a one-to-one correspondence with N first transmission paths between the first station and the second station, and each group of first measurement results includes an angle of arrival, relative time of flight, and a Doppler frequency shift of a corresponding first transmission path; and a processing unit, configured to obtain angles of arrival, relative time of flight, and Doppler frequency shifts of the N first transmission paths based on the sensing measurement report information. This application implements measurement of locations and instantaneous speeds of a plurality of passive targets.

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.