公开(公告)号：US10911107B2

公开(公告)日：2021-02-02

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 ,  H04B7/06 ,  H04W40/06 ,  H04W16/28 ,  H04B7/10

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.

公开(公告)号：US10314075B2

公开(公告)日：2019-06-04

申请号：US15613506

申请日：2017-06-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dejian Li

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/00 ,  H04L5/00 ,  H04W74/04 ,  H04W74/00 ,  H04W28/16 ,  H04W28/02 ,  H04W84/12

Abstract: A multi-transceiver configuration method, a multi-transceiver channel multiplexing method, and an apparatus are disclosed. The multi-transceiver configuration method includes: an access point obtains maximum data transfer rates Ri(n) of N terminals STAis on sub-channels n in a specified sub-channel combination, where 1≤i≤N, and N is a positive integer greater than 1; and calculates a channel access time Ti(n) required by the STAi for transmitting an average data volume on the sub-channel n, and when the specified sub-channel combination manner meets an allocation requirement of the N STAis, the access point configures at least one transceiver for each sub-channel n in the specified sub-channel combination.

公开(公告)号：US09769705B2

公开(公告)日：2017-09-19

申请号：US14851204

申请日：2015-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dejian Li

IPC: H04W4/00 ,  H04W28/26 ,  H04W72/04 ,  H04B7/06 ,  H04W72/12 ,  H04W40/24 ,  H04W56/00 ,  H04W74/00 ,  H04W36/06

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.

公开(公告)号：US20170264866A1

公开(公告)日：2017-09-14

申请号：US15607238

申请日：2017-05-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dejian Li ,  Pei Liu

IPC: H04N7/15 ,  H04N21/647 ,  H04N21/6373 ,  H04N21/234

CPC classification number: H04N7/152 ,  H04N7/155 ,  H04N7/181 ,  H04N21/234 ,  H04N21/26275 ,  H04N21/6373 ,  H04N21/64792

Abstract: A multi-video stream transmission method and a device, where an access point sets an initial sending time and a sending period of an intra frame (I frame) of each station (STA) associated with the access point, and allocates an I frame service period and a predictive frame (P frame) service period to each STA according to the initial sending time and the sending period of the I frame of each STA, where each STA exclusively occupies a channel in the I frame service period and the P frame service period such that I frame sending time of STAs are staggered, network load balance is achieved, and it is ensured that a latency of each STA meets a quality of service (QoS) requirement.

公开(公告)号：US11239892B2

公开(公告)日：2022-02-01

申请号：US17098429

申请日：2020-11-15

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.

公开(公告)号：US20210067219A1

公开(公告)日：2021-03-04

申请号：US17098429

申请日：2020-11-15

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.

公开(公告)号：US20200304347A1

公开(公告)日：2020-09-24

申请号：US16897021

申请日：2020-06-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinnan Liu ,  Dejian Li ,  Jiamin Chen ,  Yongping Zhang

IPC: H04L25/03 ,  H04L25/02 ,  H04B7/06 ,  H04L5/00 ,  H04W8/08 ,  H04L27/26 ,  H04W24/10

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.

公开(公告)号：US20190260621A1

公开(公告)日：2019-08-22

申请号：US16401729

申请日：2019-05-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinnan LIU ,  Dejian Li ,  Jiamin Chen

IPC: H04L27/26 ,  H04L5/00

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.

公开(公告)号：US10314064B2

公开(公告)日：2019-06-04

申请号：US15200653

申请日：2016-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Feng ,  Depeng Jin ,  Dejian Li ,  Jiamin Chen ,  Pei Liu

IPC: H04W72/12 ,  H04L1/00 ,  H04W24/08 ,  H04W72/04 ,  H04W84/12 ,  H04W24/02

Abstract: The present invention discloses an apparatus and a method for scheduling a timeslot. The apparatus includes: a first acquiring module, configured to acquire first interference information; a second acquiring module, configured to acquire second interference information; a third acquiring module, configured to acquire timeslot scheduling information of a link of the at least one second BSS, where the timeslot scheduling information is used to indicate information about a scheduled timeslot of the link of the at least one second BSS; and a scheduling module, configured to schedule a timeslot for a link of the first BSS according to the first interference information, the second interference information, and the timeslot scheduling information. According to the apparatus and the method for scheduling a timeslot in embodiments of the present invention, interference to a link of another network can be avoided actively, and a timeslot can be scheduled properly.

公开(公告)号：US10117105B2

公开(公告)日：2018-10-30

申请号：US15199597

申请日：2016-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dejian Li

IPC: H04W16/14 ,  H04W72/12 ,  H04B7/06 ,  H04W74/08 ,  H04W88/08 ,  H04W88/12

Abstract: A network controller includes: an acquiring unit, configured to acquire scheduling information of an adjacent network controller of a first network controller; a determining unit, configured to determine a status of time and frequency overlapping between another access period and a first SP; a scheduling unit, configured to set guard period configuration information of the first SP according to an interfered status of the first SP and the overlapping status determined by the determining unit; and a first sending unit, configured to send the guard period configuration information of the first SP to a station.