Title:
METHOD FOR MEASURING DISTANCE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/186663
Kind Code:
A1
Abstract:
According to one embodiment of the present invention, a method by which a first wireless device receives a reference signal for distance measurement in a wireless communication system can comprise the steps of: receiving, from a second wireless device, a first reference signal including a first sinusoidal signal having a first angular frequency and a second sinusoidal signal having a second angular frequency; performing fast Fourier transform (FFT) on the first reference signal; acquiring a phase difference between the first sinusoidal signal and the second sinusoidal signal on the basis of the FFT result; and transmitting, to the second wireless device, a second reference signal for the distance measurement and a third reference signal indicating information on the phase difference.
Inventors:
LEE SANGRIM (KR)
LEE HOJAE (KR)
SEO HANBYUL (KR)
YOON SUKHYON (KR)
LEE HOJAE (KR)
SEO HANBYUL (KR)
YOON SUKHYON (KR)
Application Number:
PCT/KR2018/003928
Publication Date:
October 11, 2018
Filing Date:
April 03, 2018
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04L27/26; H03D3/02
Domestic Patent References:
| WO2014043237A1 | 2014-03-20 |
Foreign References:
| US20120032855A1 | 2012-02-09 | |||
| US20120122485A1 | 2012-05-17 | |||
| US20160381504A1 | 2016-12-29 | |||
| US20150219749A1 | 2015-08-06 |
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
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