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公开(公告)号：US20190115978A1
公开(公告)日：2019-04-18
申请号：US16230535
申请日：2018-12-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiang LI , Tong JIANG , Chen DONG
IPC: H04B10/116 , H04W48/16 , H04L12/26 , H04W88/08 , H04W8/00
Abstract: The present application relates to the field of communications technologies, and discloses an access method, apparatus, device, and system for visible light communication. The method includes: obtaining neighbor visible light communication personal area network VPAN information, where the neighbor VPAN information includes information about at least one neighbor VPAN of a first VPAN, and information about each neighbor VPAN includes an identity ID and probe information of the neighbor VPAN; sending the neighbor VPAN information to user equipment, where the neighbor VPAN information is used by the user equipment to perform VPAN search and access. In embodiments of the present application, a VPAN sends obtained neighbor VPAN information to user equipment, so that the user equipment can perform VPAN search and access based on probe information of a neighbor VPAN in the neighbor VPAN information.
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公开(公告)号：US20220011425A1
公开(公告)日：2022-01-13
申请号：US17484462
申请日：2021-09-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Pengfei LUO , Tong JIANG
IPC: G01S13/86 , G01S7/40 , G01S7/292 , 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：US20200337085A1
公开(公告)日：2020-10-22
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：US20200336206A1
公开(公告)日：2020-10-22
申请号：US16919913
申请日：2020-07-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tong JIANG , Pengfei LUO
IPC: H04B10/116 , H04B10/50 , H04B10/278 , H04B10/2581
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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Patent Agency Ranking
公开(公告)号：US20190020744A1
公开(公告)日：2019-01-17
申请号：US16119467
申请日：2018-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen DONG , Tong JIANG , Qiang LI
IPC: H04L29/08 , H04B10/116 , H04L29/06
CPC classification number: H04L69/324 , H04B10/1149 , H04B10/116 , H04L69/22 , H04L69/321
Abstract: The present application discloses an uplink transmission method, including: generating, by a media access control (MAC) layer of a first device, MAC information, then generating a first primitive carrying the MAC information, and sending the first primitive to an adjacent higher layer of the MAC layer of the first device; receiving, by the adjacent higher layer of the MAC layer of the first device, the first primitive, then generating an adjacent higher layer message carrying the MAC information, and sending the adjacent higher layer message to an adjacent higher layer of a MAC layer of a second device; and receiving, by the adjacent higher layer of the MAC layer of the second device, the adjacent higher layer message, then generating a second primitive carrying the MAC information, and sending the second primitive to the MAC layer of the second device.
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公开(公告)号：US20190020414A1
公开(公告)日：2019-01-17
申请号：US16133261
申请日：2018-09-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tong JIANG , Chen DONG , Qiang LI
IPC: H04B10/116 , H04B10/079 , H04B10/27 , H04B10/40 , H04W74/04 , H04W72/04
Abstract: A beacon sending method, a network access method, a coordinator, and a device are disclosed. The method is: sending, by a coordinator, a beacon by occupying a first beacon timeslot in a current super frame, and after sending the beacon, receiving a first beacon request frame sent by a device, where the first beacon request frame is used to indicate that the device is located in an interference area between an area of a first network in which the coordinator is located and an area of at least one second network; and after receiving the first beacon request frame, sending, by the coordinator, a beacon by separately occupying a first beacon timeslot and a second beacon timeslot in each of N super frames starting from a next super frame, where N≥1, and N is a positive integer.
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公开(公告)号：US20180351934A1
公开(公告)日：2018-12-06
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：US20200336207A1
公开(公告)日：2020-10-22
申请号：US16922412
申请日：2020-07-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Pengfei LUO , Tong JIANG
IPC: H04B10/116 , H04B10/50 , H04B10/60
Abstract: Embodiments of this application relate to the communications field, disclose a camera communication method and an apparatus. A solution is: generating N pilot symbols and M×N UPPM symbols, where each of the N pilot symbols includes W waveform segments, each of the W waveform segments includes a first light source sequence number indication part used to indicate a light source sequence number, waveforms of waveform segments with odd sequence numbers in the W waveform segments are the same, waveforms of waveform segments with even sequence numbers in the W waveform segments are the same, and duration of each of the W waveform segments is equal; and sending the N pilot symbols and the M×N UPPM symbols by using the N light sources, where one light source is used to send one pilot symbol and M UPPM symbols. The embodiments of this application are used in an optical camera communication process.
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公开(公告)号：US20160080353A1
公开(公告)日：2016-03-17
申请号：US14951114
申请日：2015-11-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tong JIANG
IPC: H04L29/06
Abstract: Embodiments of the present disclosure disclose a security controller SC restoration method. The method provided by the embodiments of the present disclosure 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.
Abstract translation: 本公开的实施例公开了一种安全控制器SC恢复方法。 由本发明的实施例提供的方法包括：由主节点指定备用SC所属的节点，主节点包括原始DM或备用DM; 由主节点向第一节点发送指示备份SC的消息，其中指示备份SC的消息包括备份SC所属的节点的标识符; 在原始SC所属的节点断开的情况下，由主节点向第一节点发送用于启用SC功能的消息，用于根据用于启用SC功能的消息进行认证。
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