公开(公告)号：US20240243961A1

公开(公告)日：2024-07-18

申请号：US18619852

申请日：2024-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ting Wu WANG ,  Ju Yan PAN ,  Zhaohui CAI ,  Ruinan DENG ,  Huawei YUE ,  Yunshuai TANG

IPC: H04L27/38 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L27/3872 ,  H04L5/0092 ,  H04L27/2628

Abstract: A method includes: determining a plurality of first subcarrier data items on a plurality of first subcarriers of a first frequency subband; performing first phase rotation on each first subcarrier data item based on a mixing frequency and a first reference frequency corresponding to the first frequency subband; determining a to-be-transmitted signal based on a plurality of first subcarrier data items obtained through first phase rotation; and sending the to-be-transmitted signal. In this way, phase rotation can be performed based on at least the first reference frequency, so that modulation can be correctly implemented without a need to know a mixing frequency of a receiving end. In addition, there is no need to notify the receiving end of the used mixing frequency, and the receiving end can correctly demodulate a received signal even if the receiving end does not know the mixing frequency.