公开(公告)号：US20170063519A1

公开(公告)日：2017-03-02

申请号：US15351131

申请日：2016-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanyuan FANG ,  Jialong SHUAI ,  Qiang ZHANG

IPC: H04L7/00 ,  H04B10/2507 ,  H04B10/50

CPC classification number: H04L7/0075 ,  H04B10/2507 ,  H04B10/503 ,  H04B10/548 ,  H04B10/572

Abstract: According to a transmitter, a receiving device, and a frequency offset correction method that are provided in embodiments of the present invention, after a power parameter of a pilot in an OFDM signal received by a receiving device is detected, a frequency offset value used to indicate a degree and a direction that are of a difference that is between a center frequency of a filter and a center frequency of a laser and that deviates from a first threshold is determined according to the power parameter of the pilot, and then the receiving device corrects the difference between the center frequency of the laser and the center frequency of the filter according to the determined frequency offset value, thereby implementing frequency offset correction of an OFDM system.

Abstract translation: 根据在本发明的实施例中提供的发射机，接收设备和频偏校正方法，在检测到由接收设备接收的OFDM信号中的导频的功率参数之后，将频偏值用于 表示根据导频的功率参数来确定与滤波器的中心频率和激光的中心频率之间的偏离第一阈值的程度和方向，然后接收装置 根据确定的频率偏移值校正激光器的中心频率与滤波器的中心频率之间的差异，从而实现OFDM系统的频偏校正。