METHOD AND DEVICE FOR INHOMOGENEOUS POLARIZATION MODULATION

WIPO Patent Application WO/2024/075869

A1

A method and a device used in an optical wireless communication (OWC) system are provided. A transmission terminal generates multiple inhomogeneous polarization patterns on the basis of polarization superposition. In addition, the transmission terminal maps a modulation state and an information bit for each of the multiple inhomogeneous polarization patterns, modulates a signal on the basis of one inhomogeneous polarization pattern among the multiple inhomogeneous polarization patterns, and transmits the modulated signal. A reception terminal receives a modulated signal, and determines one inhomogeneous polarization pattern among the multiple inhomogeneous polarization patterns on the basis of polarization measurement for the modulated signal. The reception terminal determines an information bit mapped to the one inhomogeneous polarization pattern, and demodulates the modulated signal on the basis of a modulation state mapped to the information bit.

JP2739813	POLARIZATION DISPERSION COMPENSATING METHOD
WO/2023/152954	CONTROL SIGNAL MULTIPLEXER, CONTROL SIGNAL RECEIVER, CONTROL SIGNAL MULTIPLEXING METHOD, AND CONTROL SIGNAL RECEPTION METHOD
JPH0770776	INDUSTRIAL APPLICABILITY: A device for measuring and controlling an amount of optical frequency shift of laser light.

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

PCT/KR2022/015039

April 11, 2024

October 06, 2022

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LG ELECTRONICS INC (KR)

H04B10/532; H04B10/67; H04B10/69

ENVISION PATENT & LAW FIRM (KR)

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