INHOMOGENEOUS POLARIZATION-BASED COHERENT TRANSCEIVER FOR BEAM ALIGNMENT AND METHOD THEREFOR

WIPO Patent Application WO/2023/059021

A1

A method and a device used in an optical wireless communication (OWC) system are provided. A transmitting terminal transmits a plurality of reference signals to a receiving terminal through each of a plurality of beams. Each of the plurality of beams may have an inhomogeneous polarization beam pattern. The receiving terminal measures signal strength and polarization with respect to the plurality of reference signals. When the receiving terminal transmits feedback information including the measured signal strength information and polarization information to the transmitting terminal, the transmitting terminal may select at least one beam among the plurality of beams on the basis of the feedback information. Alternatively, the receiving terminal may select at least one beam from among the plurality of beams, which corresponds to at least one inhomogeneous polarization beam pattern among a plurality of inhomogeneous polarization beam patterns, on the basis of the measured signal strength and polarization.

LEE HOJAE (KR)
LEE SANGRIM (KR)
JEON KIJUN (KR)
KIM JAYEONG (KR)
AHN BYUNGKYU (KR)

PCT/KR2022/014878

April 13, 2023

October 04, 2022

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LG ELECTRONICS INC (KR)

H04B10/112; G02B27/28; H04B10/40; H04B10/50; H04B10/61

WO2017191900A1

2017-11-09

US8805188B2	2014-08-12
US8306438B2	2012-11-06
US8942569B2	2015-01-27
US11081796B2	2021-08-03

ENVISION PATENT & LAW FIRM (KR)

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