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公开(公告)号：US20250126598A1
公开(公告)日：2025-04-17
申请号：US18988596
申请日：2024-12-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dejian LI , Lei GAO , Xingqing CHENG
IPC: H04W64/00 , H04L5/00 , H04W74/0816
Abstract: This application discloses a ranging method, apparatus, and system, to improve precision of positioning/ranging/angle measurement/sensing performed by a device on a target. A first device sends a first ranging signal and/or receives a second ranging signal over at least one first channel, and a second device receives the first ranging signal and/or sends the second ranging signal over the at least one first channel. The first device and the second device perform frequency hopping for at least one time based on a frequency hopping parameter. The first device sends a third ranging signal and/or receives a fourth ranging signal over at least one second channel, and the second device receives the third ranging signal and/or sends the fourth ranging signal over the at least one second channel.
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公开(公告)号：US20250085412A1
公开(公告)日：2025-03-13
申请号：US18958852
申请日：2024-11-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lei GAO , Dejian LI , Xingqing CHENG
Abstract: This application discloses a ranging method and a related apparatus, including: A first device sends a first measurement frame to a second device on a first frequency, and receives, on the first frequency, a second measurement frame sent by the second device; the first device sends a third measurement frame to the second device on a second frequency, and receives, on the second frequency, a fourth measurement frame sent by the second device, where the second frequency is different from the first frequency; and the first device obtains a first measurement result based on the second measurement frame; the first device obtains a third measurement result based on the fourth measurement frame; and the first device sends the first measurement result and the third measurement result to a third device.
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公开(公告)号：US20180301804A1
公开(公告)日：2018-10-18
申请号：US16011488
申请日：2018-06-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GAO , Depeng JIN , Dejian LI , Jiamin CHEN , Pei LIU
Abstract: The present invention relates to the field of communications technologies, and discloses a beam tracking method, apparatus, and system, so as to ensure rapid discovery and to switch from an optimal link to a backup link in time, or switch from a backup link to an optimal link, thereby effectively improving a throughput of a system link. The beam tracking method includes: transmitting, by a beam tracking initiator, a beam tracking request to a beam tracking responder; receiving, by the beam tracking initiator, an enhanced beam tracking training auxiliary sequence transmitted, according to the enhanced beam tracking request, by the beam tracking responder; and when it is determined according to a reception detection result of the enhanced beam tracking training auxiliary sequence that it is necessary to switch to a backup beam link, transmitting, by the beam tracking initiator, first link switching information to the beam tracking responder.
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公开(公告)号：US20200007211A1
公开(公告)日：2020-01-02
申请号：US16563950
申请日：2019-09-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jinnan LIU , Dejian LI
IPC: H04B7/06 , H03M13/11 , H04B7/0491
Abstract: A sector level sweep method and apparatus are provided. A local end generates a first sector sweep packet at the local end sector sweep stage, and the local end sends the first sector sweep packet to a peer end by using a first beam. A quantity of bytes of the first sector sweep packet is not greater than 27, the first sector sweep packet includes beam indication information of the first beam, the beam indication information includes antenna identification information of the beam, and a maximum quantity of antennas indicated by the antenna identification information is at least 8.
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公开(公告)号：US20190288760A1
公开(公告)日：2019-09-19
申请号：US16430730
申请日：2019-06-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dejian LI , Jinnan LIU
Abstract: This application provides example beamforming (BF) training methods, receiving devices, and sending devices. One example method includes performing BF training on at least one channel with a first device based on BF training request information, where the BF training request information includes antenna configuration information of the BF training and channel configuration information of the at least one channel. First feedback information sent by the first device is received, where the first feedback information includes a measurement result of the BF training, information about an antenna corresponding to the measurement result, beam information of the antenna, and channel information corresponding to the antenna. At least one of an optimal antenna configuration or digital domain BF precoding information on the at least one channel is determined based on the first feedback information.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20160007234A1
公开(公告)日：2016-01-07
申请号：US14851204
申请日：2015-09-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejian LI
CPC classification number: H04W28/26 , H04B7/0617 , H04W36/06 , H04W40/244 , H04W56/001 , H04W72/0446 , H04W72/12 , H04W74/002
Abstract: A method for implementing a decentralized clustering mechanism includes: reserving, by a first wireless device located on a first channel, multiple first scheduled service periods from a first data transfer interval; switching, by the first wireless device, to a second channel within the first scheduled service periods, and transmitting a probe frame over the second channel, where the probe frame includes a cluster probe information element; reserving, by the first wireless device, multiple second scheduled service periods from a second data transfer interval according to timing information in the cluster probe information element; when a response frame from a second wireless device is received within the second scheduled service periods, identifying, by the first wireless device, whether an empty beacon scheduled service period exists; and if exists, transmitting, by the first wireless device, a beacon frame within the empty beacon scheduled service period.
Abstract translation: 用于实现分散式聚类机制的方法包括：由位于第一信道上的第一无线设备从第一数据传送间隔预留多个第一预定服务周期; 在所述第一调度服务周期内由所述第一无线设备切换到第二信道，以及在所述第二信道上发送探测帧，所述探测帧包括簇探测信息元素; 由所述第一无线设备根据所述群集探测信息元素中的定时信息从第二数据传送间隔预留多个第二调度服务周期; 当在所述第二调度服务周期内接收到来自第二无线设备的响应帧时，由所述第一无线设备识别是否存在空信标调度服务周期; 并且如果存在，则由所述第一无线设备发送所述空信标调度服务周期内的信标帧。
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公开(公告)号：US20240219516A1
公开(公告)日：2024-07-04
申请号：US18069577
申请日：2022-12-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dejian LI , Dapeng Lao , Chen Yang , Ben Wang , Jintai Zhu
IPC: G01S7/35 , G01S13/536 , G01S13/56
CPC classification number: G01S7/354 , G01S7/356 , G01S13/536 , G01S13/56 , G01S13/931
Abstract: A target detection method and apparatus, a radar, and a vehicle are provided, and relate to the field of radar technologies. The method includes: obtaining a signal spectrum based on a received signal of a receive antenna of the radar; reconstructing a received signal corresponding to a target that is in the signal spectrum and that is greater than or equal to a signal strength threshold; eliminating a reconstructed received signal in the signal spectrum to obtain an updated signal spectrum, where the updated signal spectrum represents a signal spectrum that does not include the target; determining, in the updated signal spectrum, a parameter of a target that is greater than or equal to the signal strength threshold; and obtaining at least one of location information or speed information of the determined target based on the determined parameter of the target.
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公开(公告)号：US20220342025A1
公开(公告)日：2022-10-27
申请号：US17848652
申请日：2022-06-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G01S3/14
Abstract: A method and apparatus for measuring an angle of arrival. The method includes: determining L×N values based on received values obtained by a first antenna array and a second antenna array by receiving a signal and determining an angle of arrival (AoA) of the first signal based on the L×N values. The first antenna array includes L rows of array elements arranged in a first direction and K columns of array elements arranged in a second direction. The second antenna array includes P rows of array elements arranged in the first direction and Q columns of array elements arranged in the second direction. N=K+Q. An included angle between the first direction and the second direction is greater than 0 degrees.
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公开(公告)号：US20190075510A1
公开(公告)日：2019-03-07
申请号：US16180708
申请日：2018-11-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejian LI
Abstract: A method and an apparatus for joining a centralized cluster is disclosed. The method includes: receiving a DMG Beacon frame sent by a first S-AP, where the DMG Beacon frame includes cluster information of the first S-AP; measuring, according to the cluster information of the first S-AP, signal quality and a state of each Beacon SP included in a BI of the first S-AP; if a Beacon SP whose state is an idle state is obtained by means of measurement, associating the Beacon SP with the first S-AP as a non-PCP/non-AP station, and receiving an Announce frame sent by the first S-AP; selecting one S-AP from the first S-AP and the second S-AP as a to-be-joined S-AP; and joining a centralized cluster of the to-be-joined S-AP.
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公开(公告)号：US20180331968A1
公开(公告)日：2018-11-15
申请号：US16045708
申请日：2018-07-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L12/823 , H04L5/00 , H04L1/18 , H04W28/06 , H04W72/04
CPC classification number: H04L47/323 , H04L1/1854 , H04L5/0055 , H04N7/18 , H04W28/06 , H04W72/0406 , H04W72/0446
Abstract: The invention provide a control method, including: obtaining a time division scheme of a STA in a next cruise monitoring period, where the next cruise monitoring period includes N adjustment periods and N monitoring periods determined by means of division according to N preset points; configuring control information according to the time division scheme, where the control information is for controlling an operating status of the STA in each adjustment period in the next cruise monitoring period; and sending the control information to the STA.
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