公开(公告)号：US11870729B2

公开(公告)日：2024-01-09

申请号：US18068439

申请日：2022-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Shimon Shilo ,  Leonid Epstein ,  Oded Redlich ,  Xun Yang ,  Tao Wu

IPC: H04K1/10 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2603

Abstract: A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.

公开(公告)号：US11412516B2

公开(公告)日：2022-08-09

申请号：US16791726

申请日：2020-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo Li ,  Ming Gan ,  Tao Wu

IPC: H04W56/00 ,  H04W72/04 ,  H04W76/11 ,  H04L1/00 ,  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：US11310087B2

公开(公告)日：2022-04-19

申请号：US16811616

申请日：2020-03-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Shimon Shilo ,  Leonid Epstein ,  Oded Redlich ,  Xun Yang ,  Tao Wu

IPC: H04K1/10 ,  H04L27/26 ,  H04L5/00

Abstract: A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.

公开(公告)号：US11172372B2

公开(公告)日：2021-11-09

申请号：US16749477

申请日：2020-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu ,  Teyan Chen

IPC: H04W16/14 ,  H04W16/28 ,  H04W24/10 ,  H04W48/16 ,  H04W72/08

Abstract: An information transmission method and apparatus, the method including determining, by a first communications apparatus, an area in which a terminal device is located, where the area includes overlapping coverage area between the first communications apparatus and at least one second communications apparatus, and, non-overlapping coverage area between the first communications apparatus and the at least one second communications apparatus, and the first communications apparatus is adjacent to the at least one second communications apparatus, and sending, by the first communications apparatus, information to the terminal device through a first channel if the terminal device is located in the overlapping coverage area, and sending, by the first communications apparatus, information to the terminal device through a second channel if the terminal device is located in the non-overlapping coverage areas.

公开(公告)号：US11160039B2

公开(公告)日：2021-10-26

申请号：US15061831

申请日：2016-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu ,  Yan Xin ,  Min Yan ,  Sheng Sun

IPC: H04L5/00 ,  H04W52/52

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：US11018913B2

公开(公告)日：2021-05-25

申请号：US16588541

申请日：2019-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu ,  Teyan Chen

IPC: H04L27/20 ,  H04L5/00 ,  H04L27/26 ,  H04L27/34 ,  H04L27/18

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：US10819553B2

公开(公告)日：2020-10-27

申请号：US16546159

申请日：2019-08-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu

IPC: H04W84/12 ,  H04L27/34 ,  H04B7/08 ,  H04L1/06 ,  H04L25/03 ,  H04B7/0456 ,  H04B7/12 ,  H04L27/26

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 4m lower order modulation symbols; multiplying a precoding matrix Q by a column vector including every four lower order modulation symbols in the 4m lower order modulation symbols, to obtain 4m to-be-sent higher order modulation symbols corresponding to a higher order constellation diagram; and respectively and correspondingly sending the 4m 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.

公开(公告)号：US10425207B2

公开(公告)日：2019-09-24

申请号：US15617913

申请日：2017-06-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu

IPC: H04L5/00 ,  H04B7/04 ,  H04W72/12

Abstract: Embodiments of the present invention provide a pilot transmission method, a station, and an access station. The method includes: receiving, by a station, a pilot transmission notification, where the pilot transmission notification includes a pilot transmission rule of the station and a pilot transmission rule of another station on a group of continuous subcarriers; the pilot transmission rule of the station includes: the group of continuous subcarriers is divided into two subcarrier groups, pilots transmitted on subcarriers in a same subcarrier group have a same amplitude and a same phase, and pilots transmitted on subcarriers in different subcarrier groups have a same amplitude but inverse phases, and the pilot transmission rule of the another station includes: pilots transmitted on all subcarriers have a same amplitude and a same phase; and transmitting, by the station, a pilot according to the pilot transmission rule of the station.

公开(公告)号：US20190149375A1

公开(公告)日：2019-05-16

申请号：US16246761

申请日：2019-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu ,  Teyan Chen

IPC: H04L27/20

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：US10187239B2

公开(公告)日：2019-01-22

申请号：US15140697

申请日：2016-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu ,  Yan Xin ,  Min Yan ,  Sheng Sun

IPC: H04L5/00 ,  H04L27/26

Abstract: It is possible to reduce the PAPR of an amplified signal communicated over bonded channels by applying different phase shifts to control fields communicated over the bonded channels. The phase shifts reduce the amount of constructive interaction between the control fields by shifting the peaks of the respective signals in the time domain. The control fields may include short training fields (STFs), channel estimation (CE) fields, or header fields communicated over bonded channels.