公开(公告)号：US10015035B2

公开(公告)日：2018-07-03

申请号：US15523582

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Wookbong Lee ,  Eunsung Park ,  HanGyu Cho ,  Jiwon Kang

IPC: H04L27/22 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04L27/2657 ,  H04L27/22 ,  H04W84/12

Abstract: Disclosed is a CFO estimation method comprising: generating a first function defined by reception signals in two successive OFDM symbols for a particular subcarrier; generating a second function defined on the basis of a sign of a real part of the first function; repeatedly performing a process of generating the first function and the second function for an entire subcarrier set; and determining a phase of a third function obtained by adding results of the repeated performance to be a residual CFO.