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公开(公告)号:US20190158321A1
公开(公告)日:2019-05-23
申请号:US16182064
申请日:2018-11-06
Applicant: Huawei Technologies Co., Ltd.
Inventor: Jinnan Liu , Dejian Li , Jiamin Chen , Yongping Zhang
Abstract: A training packet sending method and apparatus, where the method includes generating, by a first device, a training packet, where the training packet includes a preamble, a header, and a training field, and the header includes at least a legacy header, and repeatedly sending, by the first device, the preamble using N channels, sending the legacy header in the header using the N channels, and sending the training field to at least one second device using H channels of the N channels, where N is greater than 1, and H is greater than 1 and less than or equal to N.
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公开(公告)号:US09992684B2
公开(公告)日:2018-06-05
申请号:US15487199
申请日:2017-04-13
Applicant: Huawei Technologies Co., Ltd.
Inventor: Dejian Li
CPC classification number: H04W16/10 , H04J11/0056 , H04L5/001 , H04L27/0006 , H04W72/0446
Abstract: Embodiments of the present invention disclose a clustering method, including: adjusting, by a first device, a beginning of its own first small bandwidth beacon transmission interval to be aligned with a selected empty Beacon SP, setting its own BI to be equal to a synchronization device beacon interval S-BI, and joining, after accordingly adjusting an interval VBI for sending a beacon frame on a large bandwidth channel and an interval SBBI for sending a beacon frame on a small bandwidth channel, a target small bandwidth cluster; or sending a beacon frame including a cluster probe IE over a large bandwidth channel, requesting, by using the cluster probe IE, a synchronization PCP to return cluster synchronization information and control information, and joining the target large bandwidth cluster according the information and a second PCP.
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公开(公告)号:US09872243B2
公开(公告)日:2018-01-16
申请号:US14853762
申请日:2015-09-14
Applicant: Huawei Technologies Co., Ltd.
Abstract: The present invention provides a method for selecting a network controller and a station device. Supported channel width sets of multiple station STA devices are acquired; a PCP factor of the each STA device is generated according to a supported channel width set and an acquired directional multi-gigabit DMG capability information element of the each STA device, where the PCP factor includes the supported channel width set; a STA device with a largest PCP factor is selected as a PCP. Using the method for selecting a PCP and the STA device provided in the present invention can improve reliability of a wireless local area network WLAN.
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公开(公告)号:US20170223548A1
公开(公告)日:2017-08-03
申请号:US15487199
申请日:2017-04-13
Applicant: Huawei Technologies Co., Ltd.
Inventor: Dejian Li
CPC classification number: H04W16/10 , H04J11/0056 , H04L5/001 , H04L27/0006 , H04W72/0446
Abstract: Embodiments of the present invention disclose a clustering method, including: adjusting, by a first device, a beginning of its own first small bandwidth beacon transmission interval to be aligned with a selected empty Beacon SP, setting its own BI to be equal to a synchronization device beacon interval S-BI, and joining, after accordingly adjusting an interval VBI for sending a beacon frame on a large bandwidth channel and an interval SBBI for sending a beacon frame on a small bandwidth channel, a target small bandwidth cluster; or sending a beacon frame including a cluster probe IE over a large bandwidth channel, requesting, by using the cluster probe IE, a synchronization PCP to return cluster synchronization information and control information, and joining the target large bandwidth cluster according the information and a second PCP.
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公开(公告)号:US12216220B2
公开(公告)日:2025-02-04
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:US11855723B2
公开(公告)日:2023-12-26
申请号:US17375656
申请日:2021-07-14
Applicant: Huawei Technologies Co., Ltd.
Inventor: Dejian Li , Jinnan Liu
CPC classification number: H04B7/0617 , H04B7/0619 , H04B7/0695 , H04B7/088 , H04W16/28 , H04W72/23
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:US11088743B2
公开(公告)日:2021-08-10
申请号:US16399079
申请日:2019-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor: Dejian Li , Jinnan Liu
Abstract: A beamforming training method and apparatus relating to the field of beamforming training technologies, where the beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information indicates the second device not to 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. Hence, beamforming training flexibility can be improved.
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公开(公告)号:US10728057B2
公开(公告)日:2020-07-28
申请号:US16182064
申请日:2018-11-06
Applicant: Huawei Technologies Co., Ltd.
Inventor: Jinnan Liu , Dejian Li , Jiamin Chen , Yongping Zhang
IPC: H04L5/00 , H04L25/03 , H04L25/02 , H04B7/06 , H04W8/08 , H04L27/26 , H04W24/10 , H04W84/12 , H04W16/28
Abstract: A training packet sending method and apparatus, where the method includes generating, by a first device, a training packet, where the training packet includes a preamble, a header, and a training field, and the header includes at least a legacy header, and repeatedly sending, by the first device, the preamble using N channels, sending the legacy header in the header using the N channels, and sending the training field to at least one second device using H channels of the N channels, where N is greater than 1, and H is greater than 1 and less than or equal to N.
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公开(公告)号:US10568108B2
公开(公告)日:2020-02-18
申请号:US15866253
申请日:2018-01-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Examples of the present disclosure provide a channel access period allocation method. The method includes: receiving, by an access point (AP), first information sent by a first station (STA) for requesting a dynamic service period (DSP) from the AP; and sending, by the AP, second information to the first STA to instruct the first STA to send a data frame to the AP in a first DSP, where a start time of the first DSP falls within a first preset time period following an end time of an SP of the first STA, and the first DSP requested by the first STA is pre-allocated to a second STA having a priority that is lower than that of the first STA, where a time delay of the first STA for sending the data frame to the AP satisfies a time delay requirement of a quality of service QoS in the first preset time period.
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公开(公告)号:US20190268055A1
公开(公告)日:2019-08-29
申请号:US16399079
申请日:2019-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor: Dejian Li , Jinnan Liu
Abstract: A beamforming training method and apparatus relating to the field of beamforming training technologies, where the beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information indicates the second device not to 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. Hence, beamforming training flexibility can be improved.
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