公开(公告)号：US20250015832A1

公开(公告)日：2025-01-09

申请号：US18891447

申请日：2024-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yifei YANG ,  Qian YU ,  Ju Yan PAN ,  Changzheng MA ,  Zhongjun WANG ,  Lee Guek Doreen YEO

IPC: H04B1/692 ,  H04L25/02 ,  H04L27/26

Abstract: The present disclosure relates to signal transmission methods and apparatuses. One example method includes spreading a preamble symbol based on a first spreading code sequence to generate a first signal, and sending the first signal to a receiver. The first signal is used to determine a channel impulse response. The first spreading code sequence includes a plurality of spreading code groups, each spreading code group includes a plurality of same spreading codes and at least one guard symbol, at least one of a first bit or a last bit of each spreading code group is a guard symbol, and the plurality of spreading code groups include at least two spreading code groups with different spreading codes.