公开(公告)号：US11924839B2

公开(公告)日：2024-03-05

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 ,  H04W56/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/21 ,  H04W72/27 ,  H04W72/50

CPC classification number: H04W72/21 ,  H04W56/001 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/27 ,  H04W72/535

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：US20230261849A1

公开(公告)日：2023-08-17

申请号：US18308442

申请日：2023-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Yiqing Li ,  Chenchen Liu ,  Yunbo Li ,  Yuchen Guo ,  Jian Yu ,  Xun Yang

IPC: H04L5/00 ,  H04W72/0457 ,  H04W28/20

CPC classification number: H04L5/0092 ,  H04L5/0044 ,  H04W72/0457 ,  H04W28/20 ,  H04W84/12

Abstract: This application relates to the wireless communications field, for example, is applicable to a wireless local area network supporting the 802.11be standard, and in particular, to a PPDU uplink bandwidth indication method and a related apparatus. The method includes: An AP generates and sends a trigger frame. The trigger frame carries first indication information, where the first indication information directly indicates or jointly indicates an EHT TB PPDU bandwidth or an uplink PPDU total transmission bandwidth. The trigger frame carries second indication information, where the second indication information indicates distribution of an HE TB PPDU and/or an EHT TB PPDU in the uplink PPDU total transmission bandwidth, or directly indicate whether an EHT station transmits an HE TB PPDU or an EHT TB PPDU.

公开(公告)号：US20230163909A1

公开(公告)日：2023-05-25

申请号：US18156797

申请日：2023-01-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Wei Lin ,  Xun Yang

IPC: H04L5/00 ,  H04L47/62

CPC classification number: H04L5/0048 ,  H04L47/624 ,  H04W84/12

Abstract: A communication method includes: generating an extremely high-throughput physical layer protocol data unit (EHT PPDU), the EHT PPDU comprises a legacy physical layer preamble and a new physical layer preamble, wherein the legacy physical layer preamble comprises a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (L-SIG) field in turn, a first field of the new physical layer preamble is a repeat of a field in the legacy physical layer preamble and is modulated by binary phase shift keying, BPSK; and sending the PPDU.

公开(公告)号：US11575482B2

公开(公告)日：2023-02-07

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 ,  H04L47/62 ,  H04W84/12

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：US11563475B2

公开(公告)日：2023-01-24

申请号：US16984826

申请日：2020-08-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Xun Yang ,  Ming Gan ,  Meilu Lin ,  Peter Loc

IPC: H04B7/06 ,  H04W24/10 ,  H04L1/16 ,  H04W24/00 ,  H04B7/0413 ,  H04L1/00 ,  H04W84/12

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting channel state information. The method includes: sending a feedback indication message, a high-efficiency long training sequence, and a resource scheduling message, wherein the feedback indication message is used to indicate more than one target STAs that need to feed back channel state information, the high-efficiency long training sequence is used for determining the channel state information by the target STAs, and the first resource scheduling message is used to indicate a communication resource used by the target STAs when the target STAs feed back the channel state information; and receiving the channel state information sent by the target STAs by using the communication resource.

公开(公告)号：US11497045B2

公开(公告)日：2022-11-08

申请号：US16837827

申请日：2020-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Jun Zhu ,  Yingpei Lin ,  Xun Yang

IPC: H04W4/00 ,  H04W72/12 ,  H04W74/00 ,  H04W84/12

Abstract: A method comprises constructing, by an access point (AP), a radio frame within a scheduling window, the radio frame including at least a preamble part compatible with an existing IEEE 802.11 preamble legacy preamble, a preamble part used in a next-generation IEEE 802.11 standard (HEW preamble), and the first downlink subframe (DL subframe); sending the Legacy preamble, the HEW preamble and the first DL subframe in the radio frame; receiving at least one uplink subframe (UL subframe) located after the first DL subframe; wherein each of the at least one UL subframes is triggered by one DL subframe located before the UL subframe.

公开(公告)号：US20220353025A1

公开(公告)日：2022-11-03

申请号：US17811471

申请日：2022-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Mengshi Hu ,  Dandan Liang ,  Jian Yu ,  Xun Yang

IPC: H04L5/00 ,  H04B7/0452 ,  H04W72/04

Abstract: This application relates to the field of wireless fidelity technologies, and in particular to an information indication method. The method includes: An access point determines resource indication information, and sends the resource indication information. The resource indication information includes a plurality of bit sequences. A first bit sequence in the plurality of bit sequences corresponds to a first resource unit. The first resource unit is a resource unit in a resource block set that is allocated to a first station (STA) or a plurality of STAs. The resource block set includes at least two resource units.

公开(公告)号：US20220321301A1

公开(公告)日：2022-10-06

申请号：US17848388

申请日：2022-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Yuchen Guo ,  Xun Yang ,  Dandan Liang ,  Yunbo Li ,  Ming Gan

IPC: H04L5/00 ,  H04W48/16 ,  H04W48/08 ,  H04B7/06

Abstract: A channel sounding method and an apparatus are provided. The method includes a first access point device sending a sounding request frame to a second access point device, the sounding request frame requesting the second access point device perform channel sounding, the sounding request frame includes one or both of a sounding bandwidth field or a number of spatial streams field, the sounding bandwidth field indicating a bandwidth for performing the channel sounding, the number of spatial streams field indicating a quantity of spatial streams on which the channel sounding is performed.

公开(公告)号：US11324044B2

公开(公告)日：2022-05-03

申请号：US16371787

申请日：2019-04-01

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：US11252766B2

公开(公告)日：2022-02-15

申请号：US16567267

申请日：2019-09-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yalin Liu ,  Peter Loc ,  Xun Yang ,  Jun Zhu

IPC: H04W76/10 ,  H04L5/00 ,  H04L27/26 ,  H04W40/24 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08

Abstract: The present disclosure relates to data transmission methods and communications devices. One example communications device includes a transceiver. The transceiver is configured to send a transmission frame to a second communications device, where the second communications device acquires data information in the transmission frame, and the transmission frame includes a first part and a second part. The transceiver is configured to send the first part of the transmission frame by using a first quantity of subcarriers. The transceiver is configured to send the second part of the transmission frame by using a second quantity of subcarriers, where the first quantity is not equal to the second quantity. The transceiver is further configured to perform a next time of information transmission with the second communications device.