公开(公告)号：US20220263611A1

公开(公告)日：2022-08-18

申请号：US17684083

申请日：2022-03-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian YU ,  Dandan LIANG ,  Ju CAO ,  Ming GAN

IPC: H04L5/00

Abstract: The present disclosure provides example data transmission method, communication apparatus, and computer-readable storage medium. One example data transmission method includes transmitting a physical layer protocol data unit (PPDU) in a first frequency band, where the first frequency band includes a first frequency domain resource which includes four subbands and a second frequency domain resource which includes Y data and pilot subcarriers, each of the four subbands includes X subcarriers, X is a positive integer greater than or equal to 996, and Y is a positive integer greater than 52.

公开(公告)号：US20230171129A1

公开(公告)日：2023-06-01

申请号：US18153482

申请日：2023-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen LIU ,  Dandan LIANG ,  Ming GAN ,  Ju CAO

IPC: H04L25/02 ,  H04L5/00

CPC classification number: H04L25/0242 ,  H04L5/0007 ,  H04L5/0044

Abstract: A physical layer protocol data unit (PPDU) transmission method is provided. The method includes generating a PPDU, where the PPDU includes an extremely high throughput-long training field (EHT-LTF). The EHT-LTF is obtained based on a P matrix and a predefined EHT-LTF sequence. The P matrix is an n×n orthogonal matrix, n is an integer greater than 8, and a first row of the P matrix includes at least one element whose value is 1 and at least one element whose value is −1. The method further includes sending the PPDU. This application may be applied to a wireless local area network (WLAN) system supporting a next-generation wireless fidelity (Wi-Fi) extremely high throughput (EHT) protocol of IEEE 802.11, for example, 802.11 protocols such as 802.11be.

公开(公告)号：US20180367276A1

公开(公告)日：2018-12-20

申请号：US16115296

申请日：2018-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin XUE ,  Ju CAO ,  Le LIU ,  Ningjuan WANG ,  Wei LIN

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/0452

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04L25/03866 ,  H04L27/261 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/262

Abstract: A pilot sequence sending method and apparatus are provided. In the disclosure, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.

公开(公告)号：US20230353274A1

公开(公告)日：2023-11-02

申请号：US18349510

申请日：2023-07-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi HU ,  Jian YU ,  Chenchen LIU ,  Ming GAN ,  Ju CAO

IPC: H04L1/00

CPC classification number: H04L1/0008

Abstract: A feeding network, an antenna, an antenna system, a base station, and a beam forming method. The antenna includes an array antenna, a feeding network, and an antenna port. The array antenna includes a plurality of radiating elements. Each output of each feeding network is connected to at least one radiating element in the array antenna. Each input of each feeding network is connected to the antenna port. Each feeding network has one input and two outputs, and one of the two outputs includes a phase shifter. The phase shifter has a first operating state to increase the coverage space of beam forming.