公开(公告)号：US20240230883A1

公开(公告)日：2024-07-11

申请号：US18585724

申请日：2024-02-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yupeng Hu

IPC: G01S13/84

CPC classification number: G01S13/84

Abstract: An inter-node ranging method includes a first node that sends a plurality of first sequences to a second node; the first node receives a plurality of second delayed sequences from the second node; the first node determines a first phase difference between the first sequences and the second delayed sequences; and the first node determines a distance between the first node and the second node based on the first phase difference.

公开(公告)号：US20240055892A1

公开(公告)日：2024-02-15

申请号：US18493301

申请日：2023-10-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chaobin Xiang ,  Yang Liu ,  Yupeng Hu

IPC: H02J13/00

CPC classification number: H02J13/00007 ,  H02J13/00002

Abstract: This application relates to a method and an apparatus for identifying a topology of a power line low-voltage transformer area. The method may include: A primary node obtains characteristic data, where the characteristic data includes: first characteristic data between any two secondary nodes that have a direct connection relationship in a plurality of secondary nodes in the low-voltage transformer area. The primary node identifies the topology of the low-voltage transformer area based on the characteristic data, where the characteristic data includes at least one of delay data or channel quality data, the delay data is a first delay for transmitting information on a power line between the two nodes that have a direct connection relationship, and the channel quality data is quality of a power line channel between the two nodes that have a direct connection relationship.

公开(公告)号：US20180367344A1

公开(公告)日：2018-12-20

申请号：US16121331

申请日：2018-09-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yupeng Hu

IPC: H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04B3/54

Abstract: A signal sending method and apparatus to improve channel estimation accuracy of a receive end to improve data decoding accuracy of the receive end, where the method is applied to a system whose physical layer frame structure includes a preamble and a payload (PL) field. The method includes inserting one or more pilot time domain symbols between orthogonal frequency division multiplexing (OFDM) time domain symbols in the PL field to obtain a physical layer frame, and sending the physical layer frame to a receive end, where the preamble and the pilot time domain symbol are used together by the receive end to perform channel estimation.