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公开(公告)号：US11337248B2
公开(公告)日：2022-05-17
申请号：US16918486
申请日：2020-07-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Dong , Tong Jiang
Abstract: Methods, devices, and systems for full-duplex transmission are provided. In one aspect, a method can include: sending, by a first node, access request information to a second node in a first access timeslot, receiving, by the first node, full-duplex feedback information sent by the second node, receiving, by the first node, a target identifier sent by the second node, the full-duplex feedback information indicating that the first access timeslot is in a successful state, and determining, by the first node, a target queue location of the first node associated with a conflict resolution queue in response to at least one of: determining that the target identifier is different from an identifier of the first node, or determining that the full-duplex feedback information indicates that the first access timeslot is in an idle state.
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公开(公告)号：US10897312B2
公开(公告)日：2021-01-19
申请号：US16692595
申请日：2019-11-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tong Jiang , Pengfei Luo
IPC: H04B10/00 , H04B10/524 , H04B10/114 , H04B10/69
Abstract: A data transmission method, device, and system includes, when a preset condition is met, determining a quantity N of first symbols included in one first symbol group and a quantity K of bits transmitted in the first symbol group, where the preset condition is └ log2 mN┘>N·└ log2 m┘, K=└ log2 mN┘, m≥2, N≥2, and K≥3; obtaining X data blocks, where each of the first X−1 data blocks includes K bits, the last data block includes Y bits, X≥1, and K≥Y≥1; and processing each of the X data blocks into N first symbols to obtain NX first symbols, and sending the NX first symbols.
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公开(公告)号：US20200092007A1
公开(公告)日：2020-03-19
申请号：US16692595
申请日：2019-11-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tong Jiang , Pengfei Luo
IPC: H04B10/524 , H04B10/114 , H04B10/69
Abstract: A data transmission method, device, and system includes, when a preset condition is met, determining a quantity N of first symbols included in one first symbol group and a quantity K of bits transmitted in the first symbol group, where the preset condition is └log2 mN┘>N·└log2 m┘, K=└log 2 mN┘, m≥2, N≥2, and K≥3; obtaining X data blocks, where each of the first X−1 data blocks includes K bits, the last data block includes Y bits, X≥1, and K≥Y≥1; and processing each of the X data blocks into N first symbols to obtain NX first symbols, and sending the NX first symbols.
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公开(公告)号：US12105188B2
公开(公告)日：2024-10-01
申请号：US17484462
申请日：2021-09-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Pengfei Luo , Tong Jiang
IPC: G01S13/86 , G01S7/292 , G01S7/40 , G01S7/487 , G01S13/931 , G01S17/931
CPC classification number: G01S13/865 , G01S7/292 , G01S7/40 , G01S7/487 , G01S13/931 , G01S17/931
Abstract: A radar power control method and an apparatus are provided. The method includes: emitting a first detection signal at a target emission angle; obtaining a reflectivity of a first detection point of the first detection signal if signal power of an echo signal of the first detection signal is less than a preset power threshold, where the first detection point is a point on a surface of a detected object in a direction of the target emission angle; and increasing emission power corresponding to the target emission angle if the reflectivity of the first detection point is greater than a preset first threshold. The solution helps consider both power consumption and a detection distance of a radar.
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公开(公告)号：US20230176215A1
公开(公告)日：2023-06-08
申请号：US18161665
申请日：2023-01-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Menglin Li , Tonghui Liu , Tong Jiang
Abstract: A laser radar and an intelligent vehicle are provided, and may be specifically applied to the field of intelligent vehicles. The laser radar may include: a laser, configured to generate a laser signal; a beam shaping module, configured to perform collimation on the laser signal (step 300); a beam splitting module, configured to perform beam splitting on a laser signal to obtain a sounding signal and a local-frequency signal (step 301); a receiving module, configured to receive echo information and transmit the echo signal to an optical frequency mixing module (step 302); the optical frequency mixing module, configured to perform optical frequency mixing on the local-frequency signal and the echo information to obtain a first beat frequency signal and a second beat frequency signal (step 303); and a differential receiving unit, configured to differentially receive the first beat frequency signal and the second beat frequency signal.
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Patent Agency Ranking
公开(公告)号：US20220026532A1
公开(公告)日：2022-01-27
申请号：US17490200
申请日：2021-09-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Li , Honglei Li , Tong Jiang , Hongying Wu
IPC: G01S7/48 , G01S17/14 , G01S7/481 , G01S7/4861
Abstract: An echo signal processing method includes receiving echo signals, in different directions, including a first echo signal and a second echo signal, and the first echo signal and the second echo signal are received, determining a first inflection point from the first echo signal, determining a second inflection point from the second echo signal, determining whether a time difference between a first moment at which the first inflection point is received from the first echo signal and a second moment at which the second inflection point is received from the second echo signal is less than a preset threshold, and combining the first echo signal and the second echo signal when the time difference is less than the preset threshold.
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公开(公告)号：US11233567B2
公开(公告)日：2022-01-25
申请号：US16919913
申请日：2020-07-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tong Jiang , Pengfei Luo
IPC: H04B10/114 , H04B10/116 , H04B10/2581 , H04B10/278 , H04B10/50
Abstract: Embodiments of this application disclose a communication method and an apparatus, and relate to the communications field, to resolve a problem of how to simultaneously perform transmission by using a plurality of light sources and increase transmission efficiency in a multi-light source scenario in an optical camera communications system. A specific solution is: generating N physical frames, where each of the physical frames includes a preamble, a mode indication, and valid data, the mode indication is used to indicate a sending mode of N light sources, the sending mode is a diversity mode or a multiplexing mode, and N is a positive integer greater than or equal to 2; and sending the N physical frames by using the N light sources, where one light source sends one physical frame. The embodiments of this application are used in an optical camera communication process.
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公开(公告)号：US20220011414A1
公开(公告)日：2022-01-13
申请号：US17486946
申请日：2021-09-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Tong Jiang , Qiang Li , Hongying Wu , Honglei Li , Qiang Li
IPC: G01S7/4865 , G01S7/481 , G01S17/10 , G01S17/931
Abstract: A ranging method and apparatus are provided. The method includes processing, by a ranging device, an echo signal of a detection signal based on a time-to-digital conversion ranging manner to determine a first data set. The echo signal is processed based on an analog-to-digital conversion ranging manner to determine a second data set. An output distance set is determined based on at least one parameter in the first data set or the second data set, and one or more of the following relationships: a relationship between at least one of an actual transmit power of the detection signal and a preset power threshold, a relationship between at least one estimated distance and a preset distance threshold, or a relationship between at least one signal parameter of the echo signal and a preset parameter threshold.
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公开(公告)号：US10764268B2
公开(公告)日：2020-09-01
申请号：US16057552
申请日：2018-08-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tong Jiang
Abstract: A security controller (SC) restoration method is provided. The method includes: designating, by a master node, a node to which a backup SC belongs, where the master node includes an original DM or a backup DM; sending, by the master node to a first node, a message indicating the backup SC, where the message indicating the backup SC includes an identifier of the node to which the backup SC belongs; in a case in which a node to which an original SC belongs is disconnected, sending, by the master node to the first node, a message for enabling an SC function, for performing authentication, according to the message for enabling an SC function.
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公开(公告)号：US10432476B2
公开(公告)日：2019-10-01
申请号：US15694149
申请日：2017-09-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tong Jiang
Abstract: Embodiments provide a method, an apparatus, and a system for joining a node to a network. The method includes: receiving an access indication that is sent by a joined node and that carries information about at least one joining node; broadcasting, according to the access indication, a MAP frame carrying the information about the at least one joining node, so that a joining node corresponding to the joining node information directly completes registration after receiving the MAP frame; and sending, by a DM, an authentication password to the joining node, so that the joining node completes authentication according to the authentication password and joins the network.
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