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公开(公告)号：US20240385276A1
公开(公告)日：2024-11-21
申请号：US18787643
申请日：2024-07-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mengting Liu , Shunshun Shang , Dejian Li , Xin Gao
IPC: H04W72/0453
Abstract: Embodiments of this application provide a communication method and a communication apparatus. The communication method includes: A positioning module positions a target terminal device based on first information and/or second information, where the first information includes one or more of carrier phase measurement information of P second signals received by a first communication apparatus on N frequency resources, the second information includes one or more of carrier phase measurement information of M first signals received by a second communication apparatus on the N frequency resources, and N, M, and P are positive integers.
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公开(公告)号：US20240267836A1
公开(公告)日：2024-08-08
申请号：US18613532
申请日：2024-03-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dejian Li , Mingchao Li
IPC: H04W48/16 , H04W48/10 , H04W72/541
CPC classification number: H04W48/16 , H04W48/10 , H04W72/541
Abstract: A method includes: A first node scans another primary node based on a scanning parameter, where the first node is a primary node of at least one communication domain; and when the another primary node is not discovered through scanning, the first node listens to a first broadcast message based on random listening duration, where the first broadcast message is a broadcast message from one or more primary nodes in the another primary node, and the random listening duration is used by the first node to listen to the another primary node. The random listening duration is not fixed. Broadcast time periods of the first node and the another primary node are staggered, so that the first node can receive a broadcast message of the another primary node in the random listening duration.
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公开(公告)号：US20230092131A1
公开(公告)日：2023-03-23
申请号：US18071333
申请日：2022-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dapeng Lao , Jinnan Liu , Rongjiang Liu , Chen Yang , Jintai Zhu , Dejian Li
Abstract: A radar signal transmitting method, a radar signal receiving method, and an apparatus are applied to a radar apparatus. The radar signal transmitting method includes: sending a first signal and a second signal in S slots, where a phase of the first signal remains unchanged in the S slots, and the first signal may be equivalent to a SIMO signal; and sending the second signal in at least one of a time division manner or a code division manner, where phase modulation is performed, by using a step of 2πky/P, on a signal that is in the second signal and that is sent through each of m transmit antennas, and the second signal is equivalent to a MIMO signal. When P=2, the MIMO signal is sent in a time division manner. When P>2, the MIMO signal is sent in a time division manner and a code division manner.
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公开(公告)号：US11075677B2
公开(公告)日：2021-07-27
申请号：US16804713
申请日：2020-02-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jinnan Liu , Dejian Li
Abstract: Example methods and devices for sending a beam refinement protocol packet are provided in this application, which support a transmission format of multi-channel transmission and multi-antenna transmission. One example method for sending a beam refinement protocol packet includes determining a transmission format of a beam training (TRN) subfield by a first device based on first information. The first information includes information indicating a quantity of transmit chains used for transmitting the TRN subfield on each channel and information indicating a channel aggregation mode. The first device sends a beam refinement protocol packet to a second device on a transmit chain based on the transmission format, where the beam refinement protocol packet includes a data field and a TRN field, and the TRN field includes a plurality of TRN subfields.
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公开(公告)号：US20190074873A1
公开(公告)日：2019-03-07
申请号：US16182215
申请日：2018-11-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jinnan Liu , Dejian Li , Yongping Zhang , Jiamin Chen
IPC: H04B7/0417
Abstract: A beam refinement method and a communications device, where the method includes determining, by a first device, a format of an enhanced Beam Refinement Protocol (eBRP) packet, where the eBRP packet includes a training field, the training field includes an eBRP channel estimation (eBRP-CE) sub-field and an eBRP training (eBRP-TRN) sub-field, and a ratio of a quantity of Gray codes composing the eBRP-CE sub-field in the training field to a quantity of Gray codes composing the eBRP-TRN sub-field in the training field is less than 9:20, and sending, by the first device, the eBRP packet to a second device based on the determined format of the eBRP packet. Hence, an effective proportion of the eBRP-TRN sub-field in the training field can be increased such that more Antenna Weight Vector (AWV) configurations can be attempted within a same period of time.
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Patent Agency Ranking
公开(公告)号：US10027027B2
公开(公告)日：2018-07-17
申请号：US15064354
申请日：2016-03-08
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：US20160198393A1
公开(公告)日：2016-07-07
申请号：US15066620
申请日：2016-03-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejian Li
CPC classification number: H04W40/32 , H04W40/244 , H04W40/246 , H04W40/248 , H04W48/12 , H04W84/12
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.
Abstract translation: 公开了一种用于连接集中式集群的方法和装置。 该方法包括：接收由第一S-AP发送的DMG信标帧，其中DMG信标帧包括第一S-AP的簇信息; 根据第一S-AP的集群信息，测量信号质量和包含在第一S-AP的BI中的每个信标SP的状态; 如果通过测量获得其状态是空闲状态的信标SP，则将信标SP与第一S-AP相关联为非PCP /非AP站，并且接收由第一S-AP发送的通知帧 ; 从第一S-AP和第二S-AP选择一个S-AP作为待连接的S-AP; 并加入要加入的S-AP的集中式集群。
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公开(公告)号：US20210409084A1
公开(公告)日：2021-12-30
申请号：US17375656
申请日：2021-07-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejian Li , Jinnan Liu
Abstract: A beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information instructs the second device to not 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.
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公开(公告)号：US11070263B2
公开(公告)日：2021-07-20
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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10.发明授权公开(公告)号：US11025466B2
公开(公告)日：2021-06-01
申请号：US16401729
申请日：2019-05-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jinnan Liu , Dejian Li , Jiamin Chen
Abstract: The present application discloses a reference signal configuration method, including: generating a reference signal, where the reference signal includes a first part and a second part, the first part and the second part have a same length, and a sum of a DC component of the first part and a DC component of the second part is zero; generating an enhanced directional multi-gigabit EDMG packet including the reference signal; and sending the EDMG packet. Embodiments of the present application further provide a reference signal configuration apparatus. According to the embodiments of the present application, a reference signal with a zero DC component can be obtained, thereby facilitating channel estimation that is based on CE.
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