公开(公告)号：US09866341B2

公开(公告)日：2018-01-09

申请号：US14612770

申请日：2015-02-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Woo Kim ,  Seung Jae Bahng ,  Go San Noh ,  Youn Ok Park

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04L25/03 ,  H04B7/10

CPC classification number: H04J11/003 ,  H04B7/10 ,  H04L5/0051 ,  H04L25/03343 ,  H04L27/261 ,  H04L27/2626

Abstract: Disclosed is a data transmitter, including: a demultiplexer configured to demultiplex a data subcarrier, and a training sequence or a pilot subcarrier included in a signal which needs to be frequency-shifted among a plurality of signals; a frequency shift unit configured to frequency-shift the demultiplexed data subcarrier based on a predetermined frequency; a superposition unit configured to generate a polarization signal by superimposing the demultiplexed training sequence or pilot subcarrier, and the frequency-shifted data subcarrier; and a polarization antenna configured to transmit a signal which need not be frequency-shifted and the generated polarization signal among the plurality of signals.