-
公开(公告)号：US20240171211A1
公开(公告)日：2024-05-23
申请号：US18424444
申请日：2024-01-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Teyan Chen , Ju Cao , Tao Wu
Abstract: Embodiments of this application disclose a full-duplex self-interference cancellation method and apparatus. The full-duplex self-interference cancellation method may be applied to the field of radio frequency self-interference cancellation in a full-duplex scenario. The full-duplex self-interference cancellation method is implemented by a full-duplex self-interference cancellation apparatus with self-interference reconstruction modules of two levels, and the full-duplex self-interference cancellation apparatus is implemented by a terminal. This greatly reduces hardware implementation complexity and costs of the second self-interference reconstruction module, and improves a full-duplex self-interference cancellation capability.
-
公开(公告)号：US11950217B2
公开(公告)日：2024-04-02
申请号：US17857595
申请日：2022-07-05
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W56/00 , H04L1/00 , H04W72/044 , H04W72/0446 , H04W76/11 , H04W80/02
CPC classification number: H04W72/046 , H04L1/0003 , H04W72/0446 , H04W76/11 , H04W80/02
Abstract: A data transmission method and apparatus applied to the wireless communications field, where the method includes receiving, by a first access point (AP), cooperation configuration information from a second AP, where the cooperation configuration information of the second AP indicates basic cooperation information of the second AP to the first AP, and triggering, by the first AP based on a quantity of spatial streams allocated through cooperation, at least one cooperation station (STA) associated with the first AP to perform uplink data transmission using a quantity of spatial streams allocated by the first AP.
-
公开(公告)号：US11140082B2
公开(公告)日：2021-10-05
申请号：US16699352
申请日：2019-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L12/803 , H04L12/801 , H04L12/841 , H04L29/12 , H04L29/06
Abstract: This application provides a data transmission method. The method includes: calculating a first duration based on at least one to-be-sent data flow and a first time interval, where the first time interval is a preset value, and different data flows in the at least one to-be-sent data flow have different 5-tuples; and sending a first data flow, where the first data flow belongs to the at least one to-be-sent data flow; where a first set of packets of the first data flow are sent in a first time period, a second set of packets of the first data flow are sent in a second time period following a second time interval, a duration of the first time period and a duration of the second time period are equal to the first duration, and the second time interval is greater than or equal to the first time interval.
-
公开(公告)号：US20200099557A1
公开(公告)日：2020-03-26
申请号：US16588541
申请日：2019-09-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tao Wu , Teyan Chen
Abstract: This application provides a multichannel-based signal transmission method and apparatus. The method includes: combining N groups of lower-order modulation symbols into N groups of higher-order modulation symbols, where an ith higher-order modulation symbol in each group of higher-order modulation symbols is obtained by combining ith lower-order modulation symbols in all the N groups of lower-order modulation symbols, each group of lower-order modulation symbols includes M lower-order modulation symbols, i=1, 2, . . . , M, N is a positive integer greater than 1, and M is a positive integer greater than 1; determining N to-be-sent signals based on the N groups of higher-order modulation symbols; and sending a kth to-be-sent signal in the N to-be-sent signals by using a kth channel in N channels, where k=1, 2, . . . , N.
-
公开(公告)号：US10419262B2
公开(公告)日：2019-09-17
申请号：US15975720
申请日：2018-05-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tao Wu
Abstract: Embodiments of the present invention provide a data transmission method and apparatus, and the method includes: modulating to-be-sent information bits according to a lower order constellation diagram, and generating 4 m lower order modulation symbols; multiplying a precoding matrix Q by a column vector including every four lower order modulation symbols in the 4 m lower order modulation symbols, to obtain 4 m to-be-sent higher order modulation symbols corresponding to a higher order constellation diagram; and respectively and correspondingly sending the 4 m to-be-sent higher order modulation symbols on different carriers of two antennas. The to-be-sent higher order modulation symbols include some or all to-be-sent information bits. Therefore, the same signal can be simultaneously sent on different carriers of multiple antennas, and frequency diversity and space diversity are implemented, so that transceiving performance of data transmission is improved.
-
Patent Agency Ranking
公开(公告)号：US10333760B2
公开(公告)日：2019-06-25
申请号：US15971100
申请日：2018-05-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tao Wu
Abstract: Embodiments of the present disclosure relate to an OFDM-based data transmission method and an apparatus. In one example method, a transmitting device generates a data packet. The data packet comprises at least one orthogonal frequency division multiplexing (OFDM) symbol. The OFDM symbol comprises N sequentially numbered subcarriers. The N subcarriers are divided into L subblocks. Each subblock of the L subblocks comprises └N/L┘ subcarriers including M pilot subcarriers. Start subcarriers of adjacent subblocks are adjacently numbered subcarriers. A numbering interval is the same for adjacent subcarriers in each subblock of the L subblocks. Each subblock of the L subblocks corresponds to one phase rotation signal. Signals carried on the subcarriers in each subblock of the L subblocks are signals obtained by multiplying original signals by a corresponding phase rotation signal. The transmitting device sends the data packet.
-
27.发明申请公开(公告)号：US20170302481A1
公开(公告)日：2017-10-19
申请号：US15643104
申请日：2017-07-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tao Wu
CPC classification number: H04L25/0226 , H04B7/0452 , H04L5/0023 , H04L5/0044 , H04L5/0048 , H04L5/005 , H04L25/0204 , H04L25/0242 , H04L27/26 , H04W84/12
Abstract: Embodiments of the present disclosure provide a pilot transmission method and a data transmission apparatus in a wireless local area network. The pilot transmission method in a wireless local area network in the present disclosure includes: applying a pilot matrix to an LTF to generate a pilot, and sending the pilot, where the pilot matrix includes: a matrix formed from pilot sequences each having a pilot coefficient of each of the spatial flows, where the spatial flow is on M subcarriers in N symbol periods, the pilot matrix is an orthogonal matrix, M is a positive integer multiple of L, and L is a quantity of spatial flows. According to the present disclosure, channel estimation precision can be improved.
-
公开(公告)号：US09793606B2
公开(公告)日：2017-10-17
申请号：US14843494
申请日：2015-09-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Halim Boutayeb , Paul Robert Watson , Weishan Lu , Tao Wu
CPC classification number: H01Q3/34 , H01Q3/446 , H01Q9/0407 , H01Q9/0435 , H01Q9/045 , H01Q19/005 , H01Q21/24 , H01Q21/29
Abstract: An electronically steerable antenna with dual polarization is provided, as well as a method for steering such an antenna. An example antenna may include a driven patch element having dual polarity for radiating or receiving a first beam with a first polarization and radiating or receiving a second beam with a second polarization. The antenna includes a parasitic patch element separated from the driven patch element and in a parasitic coupling arrangement to the driven patch element, as well as first and second tuning elements linked to the parasitic patch element to control first and second terminating impedances of the parasitic patch element, respectively. The first terminating impedance at least partly determines a direction of the first beam, and the second terminating impedance at least partly determines a direction of the second beam.
-
公开(公告)号：US20170257835A1
公开(公告)日：2017-09-07
申请号：US15061831
申请日：2016-03-04
Applicant: Huawei Technologies Co., Ltd.
Abstract: A method is described for providing extended wireless coverage. The method includes transmitting, by a station (STA), at least a first frame including one or more short training fields (STFs) and a legacy STF, each of the one or more STFs carrying a sequence of symbols that is orthogonal to a sequence of symbols carried by the legacy STF.
-
公开(公告)号：US20170257193A1
公开(公告)日：2017-09-07
申请号：US15061899
申请日：2016-03-04
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L5/00
CPC classification number: H04L5/005 , H04L27/2613 , H04L29/0653 , H04L67/147 , H04L69/22 , H04W72/042
Abstract: A method of operating a serving point includes communicating a frame between the serving point and at least one station (STA), the frame including at least a first preamble and a second preamble, the first preamble including at least a first short training field (STF) and a legacy STF, the second preamble including at least a second STF, the legacy STF being orthogonal to the first STF and the second STF.
-
-
-
-
-
-
-
-
-
Search Results
63
records
(took 0.042 seconds)
