公开(公告)号：US11528174B2

公开(公告)日：2022-12-13

申请号：US17036996

申请日：2020-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Xin Zuo ,  Xun Yang

IPC: H04L27/26

Abstract: Embodiments of this application provide information transmission methods and apparatuses. One method includes: generating, by a first communications device, a physical layer protocol data unit (PPDU) with a bandwidth of X MHz, wherein X>160, some or all fields in the PPDU are rotated in the bandwidth of X MHz by using a rotation factor sequence, the bandwidth of X MHz comprises n bandwidths of Y MHz, the rotation factor sequence comprises n rotation factors, and each of the n bandwidths corresponds to one rotation factor; and sending, by the first communications device, the PPDU to a second communications device.

公开(公告)号：US20220256537A1

公开(公告)日：2022-08-11

申请号：US17672437

申请日：2022-02-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Xun Yang

IPC: H04W72/04 ,  H04W72/12 ,  H04W88/08

Abstract: A resource indication method includes generating, by an access point, resource mapping information, where the resource mapping information includes a plurality of mapping segments, each mapping segment is associated with a frame type, each mapping segment includes a plurality of resource indicators, and each resource indicator indicates a resource allocated to a station in a frame corresponding to a frame type associated with a mapping segment to which the resource indicator belongs, and sending, by the access point, the resource mapping information.

公开(公告)号：US11317439B2

公开(公告)日：2022-04-26

申请号：US16017021

申请日：2018-06-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanchun Li ,  Yuchen Guo ,  Yunbo Li ,  Xun Yang

IPC: H04W74/08 ,  H04W4/00 ,  H04L5/00 ,  H04W28/06 ,  H04W72/08 ,  H04W72/12 ,  H04W74/00 ,  H04W72/04

Abstract: Embodiments of the present invention provide an access method, including: sending, to an access point, a first frame that carries uplink transmission requirement information; and if a second frame that carries information about an uplink transmission resource is received from the access point within agreed time period, sending uplink multi-user transmission data to the access point, where the uplink multi-user transmission data is transmitted on the uplink transmission resource; or if the second frame is not received within an agreed time period, accessing, by a station, a channel in a contention access manner that is based on carrier sense CSMA/CA. According to the method provided in the embodiments of the present invention, a channel access manner can be managed, a congestion degree of a system can be decreased, and channel utilization can be increased.

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：US11284283B2

公开(公告)日：2022-03-22

申请号：US16526067

申请日：2019-07-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi Luo ,  Xun Yang ,  Yingpei Lin

IPC: H04W24/10 ,  H04W76/40 ,  H04W72/12 ,  H04W74/00 ,  H04B7/0452 ,  H04J13/00 ,  H04L27/26 ,  H04W74/08

Abstract: An uplink multi-user multi-input multi-output establishment method includes broadcasting, by a network side device, an uplink data sending announcement; receiving buffer information sent by a terminal that needs to send data, where the buffer information includes at least a sending level and a data sending length of to-be-sent data; determining, according to the buffer information, scheduling information for establishing uplink multi-user multi-input multi-output; and sending, to a terminal that is allowed to send data and selected from the terminal that needs to send data, a clear to send frame that carries the scheduling information, so that the terminal that is allowed to send data sends the to-be-sent data according to the scheduling information. The embodiments of the present disclosure effectively implement uplink multi-user multi-input multi-output establishment, so that signaling interworking is reduced, resource overheads are reduced, and data sending efficiency is improved.

公开(公告)号：US11006420B2

公开(公告)日：2021-05-11

申请号：US16825749

申请日：2020-03-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Yang ,  Tianyu Wu ,  Yunbo Li

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W74/08

Abstract: Disclosed is a data transmission method. The method comprises: reserving a first channel and a second channel, where the first channel is used for transmitting data and the second channel is used for transmitting ACKs; sending data to a receiving end on the first channel that is reserved; receiving an ACK that is sent by the receiving end and corresponds to the data on the second channel that is reserved and determining whether the data needs to be cached based on information carried in the ACK; and if the information carried in the ACK indicates that the receiving end has correctly received the data, clearing the data that is cached by a sending end. Through separate transmission of the data and the ACK, an efficiency problem of the sending end in providing MAC in a wireless system in a condition of a limited cache capacity is resolved.

公开(公告)号：US20210136803A1

公开(公告)日：2021-05-06

申请号：US17145371

申请日：2021-01-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao Han ,  Yuchen Guo ,  Xun Yang ,  Jian Yu

IPC: H04W72/12 ,  H04W72/04 ,  H04W56/00

Abstract: Various embodiments provide a data transmission method and apparatus. In those embodiments, a first device sends first indication information in a first frequency band, where the first indication information is indicative of a resource in a second frequency band, used by the first device and the second device to perform data transmission. In those embodiments, the first device performs, based on the scheduling information, data transmission with the second device, using the resource in the second frequency band. Those embodiments can schedule a device based on a plurality of frequency bands to perform data transmission. In this way, a larger bandwidth is used, a throughput rate is increased, and system performance is improved.

公开(公告)号：US20210126755A1

公开(公告)日：2021-04-29

申请号：US17141676

申请日：2021-01-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Wei Lin ,  Xun Yang

IPC: H04L5/00 ,  H04L12/863

Abstract: A communication method includes generating a physical layer protocol data unit (PPDU) including a preamble, where the preamble includes a legacy physical layer preamble and a new physical layer preamble, wherein the new physical layer preamble includes a repeated field that has a preset out-of-order relationship with a preset field of the legacy physical layer preamble in frequency domain. The communication method further includes sending the PPDU.

公开(公告)号：US20210126735A1

公开(公告)日：2021-04-29

申请号：US17141847

申请日：2021-01-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Wei Lin ,  Xun Yang

IPC: H04L1/00 ,  H04L1/16

Abstract: A coded bit transmission method and apparatus, to improve spectrum resource utilization and a data rate of a Wi-Fi system, where the method includes: A sender performing channel coding on information bits according to a used MCS, to generate coded bits; and the sender distributing the coded bits to a plurality of channel sets or a plurality of resource units according to a distribution rule. The MCS is an MCS used for each of the plurality of channel sets, or an MCS used for each of the plurality of resource units.

公开(公告)号：US10924996B2

公开(公告)日：2021-02-16

申请号：US16368903

申请日：2019-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Meilu Lin ,  Jia Jia ,  Xun Yang

IPC: H04W52/02 ,  H04W52/18

Abstract: Embodiments of the present invention disclose a state switching method and apparatus. The state switching method includes: receiving, by a first network node, a preset frame sent by a second network node, where the preset frame includes indication information used to indicate an on/off state of a main transceiver and/or a wake up receiver of the first network node immediately, after a specified time point, or within a specified time period; and controlling, by the first network node based on the indication information, to switch an on/off state of the main transceiver and/or the wake up receiver of the first network node. According to the embodiments of the present invention, energy is saved by using a preset frame to indicate an on/off state of a main transceiver and/or a wake up receiver of a network node after a specified time point or within a specified time period.