公开(公告)号：US20190245669A1

公开(公告)日：2019-08-08

申请号：US16390333

申请日：2019-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ningjuan Wang ,  Xin Xue ,  Min Yan ,  Jian Yu

IPC: H04L5/00 ,  H04W56/00 ,  H04L29/06 ,  H04B7/00 ,  H04B7/24

CPC classification number: H04L5/0053 ,  H04B7/00 ,  H04B7/24 ,  H04L65/4076 ,  H04W56/005 ,  H04W84/12

Abstract: An access device constructs a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device. The access device broadcasts the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. Data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

公开(公告)号：US20180331876A1

公开(公告)日：2018-11-15

申请号：US15987216

申请日：2018-05-23

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Wei Lin ,  Xin Xue ,  Ningjuan Wang ,  Le Liu

IPC: H04L27/26 ,  H04W72/12 ,  H04W24/10

Abstract: An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.