公开(公告)号：US20240340206A1

公开(公告)日：2024-10-10

申请号：US18671229

申请日：2024-05-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yajing ZHOU ,  Chenchen LIU ,  Zhengchun ZHOU ,  Xianfu LEI

IPC: H04L27/26 ,  H04L1/1607 ,  H04L27/34

CPC classification number: H04L27/261 ,  H04L1/1642 ,  H04L27/34

Abstract: This application provides a sounding frame transmission method and a related apparatus. The method is applied to a first device, and the method includes: generating a sounding frame, where the sounding frame includes a first field, the first field includes a predefined first sequence, the first sequence includes a sequence obtained after a second sequence is modulated by using at least one of the following modulation modes, and the modulation modes include: QPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM, and 4096-QAM; and sending the sounding frame. In this way, channel quality of a communication link in at least one of modulation modes of QPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM, and 4096-QAM can be accurately measured when channel measurement is performed by using the first sequence, thereby enriching application scenarios of an EHT-LTF sequence.

公开(公告)号：US20230179461A1

公开(公告)日：2023-06-08

申请号：US18105383

申请日：2023-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan LIANG ,  Yang YANG ,  Xun YANG ,  Xianfu LEI ,  Ming GAN ,  Xiaohu TANG ,  Wei LIN ,  Lanping LI

IPC: H04L27/26

CPC classification number: H04L27/2613 ,  H04L27/2614

Abstract: An example physical layer protocol data unit (PPDU) transmission method includes generating, by a first communication device, a PPDU, where the PPDU includes a long training field (LTF) sequence. The first communication device can send the PPDU. A second communication device can receive the PPDU. The second communication device can parse the received PPDU to obtain the LTF sequence included in the PPDU.

公开(公告)号：US20210399822A1

公开(公告)日：2021-12-23

申请号：US17462275

申请日：2021-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yang YANG ,  Xianfu LEI ,  Xiaohu TANG ,  Zhi GU ,  Min YAN

IPC: H04J13/00 ,  H04J13/10 ,  H04L25/02 ,  H04W80/02

Abstract: This application relates to the field of communications technologies, and discloses a data transmission method. The method includes: generating a PPDU; and transmitting the PPDU to at least one receive end. The PPDU includes a channel estimation field CEF, and the CEF includes a plurality of sub-sequences. For each of the plurality of sub-sequences, a part or all of elements in the sub-sequence are basic elements, and the basic elements are arranged into a Golay sequence or a ZC sequence in the sub-sequence. This application is used for data transmission.

公开(公告)号：US20220286337A1

公开(公告)日：2022-09-08

申请号：US17745344

申请日：2022-05-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan LIANG ,  Ming GAN ,  Yang YANG ,  Xianfu LEI ,  Chenchen LIU ,  Zhengchun ZHOU ,  Wei LIN ,  Xiaohu TANG

IPC: H04L27/26 ,  H04W72/04

Abstract: Example methods for transmitting a physical layer protocol data unit (PPDU) and apparatus are described. One example method includes generating and transmitting a PPDU that includes a long training field (LTF). A length of a frequency-domain sequence of the LTF is greater than a first length, and the first length is a length of a frequency-domain sequence of an LTF of a first PPDU transmitted over a channel whose bandwidth is 160 MHz.

公开(公告)号：US20210258960A1

公开(公告)日：2021-08-19

申请号：US17313762

申请日：2021-05-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min YAN ,  Yong WANG ,  Xianfu LEI

IPC: H04W72/04 ,  H04W80/02 ,  H04L5/00

Abstract: This application provides a data transmission method and a communications apparatus. The method includes: generating, by an access point, a physical protocol data unit PPDU, where a data part of the PPDU is carried on at least one resource unit RU; sending, by the access point, the PPDU to at least one station by using a channel bandwidth, where the channel bandwidth includes M basic bandwidths, the basic bandwidth is 2.16 GHz, M is an integer greater than or equal to 1, and the M basic bandwidths are divided into the at least one RU; and parsing, by the station, the data part that is of the PPDU and that is carried on the at least one RU. In embodiments of this application, it can implement an OFDMA technology in a high-frequency scenario, and improve channel utilization and transmission efficiency.

公开(公告)号：US20240188059A1

公开(公告)日：2024-06-06

申请号：US18438651

申请日：2024-02-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD

Inventor： Chenchen LIU ,  Mingjiang WU ,  Xianfu LEI ,  Xiaohu TANG

IPC: H04W72/0453 ,  H04L27/26 ,  H04W72/542

CPC classification number: H04W72/0453 ,  H04L27/2634 ,  H04W72/542

Abstract: This application provides a data transmission method and a communication apparatus. The method includes: A first device receives a trigger frame, where the trigger frame indicates a resource unit RU allocated to the first device; and the first device sends first data to a second device, where the first data occupies a discrete subcarrier in the RU. Based on the method provided by this application, a transmit power of a subcarrier can be increased, and transmission performance can be ensured.

公开(公告)号：US20240019540A1

公开(公告)日：2024-01-18

申请号：US18338965

申请日：2023-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui DU ,  Xiao HAN ,  Chenchen LIU ,  Meihong ZHANG ,  Wei LIN ,  Xun YANG ,  Zhengchun ZHOU ,  Xianfu LEI ,  Xiaohu TANG

IPC: G01S7/40 ,  G01S7/00

CPC classification number: G01S7/40 ,  G01S7/006

Abstract: A data transmission method. A physical layer protocol data unit (PPDU) is generated. The PPDU includes a training field. The training field includes a sequence used for target sensing. The PPDU is sent.