公开(公告)号：US20250068957A1

公开(公告)日：2025-02-27

申请号：US18726776

申请日：2022-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Jayeong Kim ,  Sangrim Lee ,  Hojae Lee ,  Byungkyu Ahn

IPC: G06N10/70 ,  G06N10/40

Abstract: Provided is an operation method of a first node in a communication system, according to various embodiments of the present disclosure, the method comprising the steps of: receiving one or more synchronization signals from a second node; receiving system information from the second node; identifying, for a bit flip channel, a bit correlation of a first number of n first qubits constituting an entanglement state between the first node and the second node; generating, on the basis of the bit correlation, a second number of n−1 auxiliary qubits; after an interaction with respect to the bit flip channel occurs, determining, on the basis of the second number of n−1 auxiliary qubits, whether a bit flip error has occurred with respect the entanglement state; and, if the bit flip error is determined to have occurred, carrying out error correction by means of a bit flip operation for the first qubits.

公开(公告)号：US12218789B2

公开(公告)日：2025-02-04

申请号：US18000352

申请日：2020-06-01

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee ,  Bonghoe Kim ,  Sunam Kim ,  Kijun Jeon ,  Byungkyu Ahn

IPC: H04L27/26 ,  H04B10/11 ,  H04B10/40 ,  H04L7/00

Abstract: The present specification provides a method, performed by a device, for transmitting information about a pencil beam timing offset in a wireless optical communication system, in which a reference synchronization time is obtained, wherein the reference synchronization time is obtained on the basis of a cell-reference synchronization signal (C-RSS) received from another device, a peak energy time is obtained, the pencil beam timing offset is obtained on the basis of the reference synchronization time and the peak energy time, and information about the pencil beam timing offset is transmitted to the other device.

公开(公告)号：US12184459B2

公开(公告)日：2024-12-31

申请号：US17767025

申请日：2019-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee

IPC: H04L27/227 ,  H04L5/00 ,  H04L27/20

Abstract: Disclosed are a multi-layer transmission and reception method in a communication system based on 1-bit quantization in a wireless communication system, and an apparatus for supporting same. Particularly, a method by which a first device transmits and receives a signal in a wireless communication system comprises the steps of: receiving a reference signal (RS) from a second device; generating a demodulation reference vector on the basis of the RS; and receiving a data signal from the second device by using the demodulation reference vector, wherein the RS can be generated differently according to the modulation of the data signal.

公开(公告)号：US12068777B2

公开(公告)日：2024-08-20

申请号：US17918523

申请日：2020-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee

IPC: H04B10/00 ,  H04B10/079 ,  H04B10/112 ,  H04B10/2507 ,  H04B10/85 ,  H04J14/00

CPC classification number: H04B10/0795 ,  H04B10/112 ,  H04B10/2507 ,  H04B10/85

Abstract: A method and apparatus for transmitting and receiving signals in a wireless communication system, according to an embodiment of the present invention, may comprise a feature of applying a phase pattern to a wavefront of an optical signal and a feature of transmitting the optical signal. The phase pattern may be determined on the basis of an optical phase shift characteristic of a phase mask, and the phase mask may be determined on the basis of a quantization order and a phase order.

公开(公告)号：US12034479B2

公开(公告)日：2024-07-09

申请号：US17773989

申请日：2019-11-04

Applicant: LG Electronics Inc.

Inventor： Hojae Lee ,  Sangrim Lee ,  Byounghoon Kim

IPC: H04B10/11

CPC classification number: H04B10/11

Abstract: Proposed is a receiving UE for receiving a signal in optical wireless communication, according to the present disclosure. The receiving UE may include: a transceiver for receiving an optical signal of an orbital angular momentum (OAM) mode from a transmitting terminal; a demodulator composed of at least one phase shifter; a photoelectricity converter composed of at least one photodiode; and a processor connected to the transceiver, the demodulator, and the photoelectricity converter. In addition, the at least one phase shifter may convert an optical signal of the OAM mode into an optical signal of a Gaussian mode, and the at least one photodiode may convert an optical signal of the Gaussian mode into an electrical signal.

公开(公告)号：US20220385360A1

公开(公告)日：2022-12-01

申请号：US17773989

申请日：2019-11-04

Applicant: LG Electronics Inc.

Inventor： Hojae Lee ,  Sangrim Lee ,  Byounghoon Kim

IPC: H04B10/11

Abstract: Proposed is a receiving UE for receiving a signal in optical wireless communication, according to the present disclosure. The receiving UE may include: a transceiver for receiving an optical signal of an orbital angular momentum (OAM) mode from a transmitting terminal; a demodulator composed of at least one phase shifter; a photoelectricity converter composed of at least one photodiode; and a processor connected to the transceiver, the demodulator, and the photoelectricity converter. In addition, the at least one phase shifter may convert an optical signal of the OAM mode into an optical signal of a Gaussian mode, and the at least one photodiode may convert an optical signal of the Gaussian mode into an electrical signal.

公开(公告)号：US11184922B2

公开(公告)日：2021-11-23

申请号：US16614569

申请日：2018-05-15

Applicant: LG Electronics Inc.

Inventor： Hojae Lee ,  Sangrim Lee

IPC: H04W74/08 ,  H04W74/00 ,  H04W74/04 ,  H04B1/713 ,  H04W72/04

Abstract: Provided are a method and an apparatus for transmitting uplink data on the basis of contention in a wireless communication system. Specifically, a terminal receives, from a base station, allocation information for a contention zone in one resource zone. The allocation information includes a configuration field indicating locations and the number of contention zones. The terminal determines whether repetition of uplink data is to be performed, on the basis of downlink channel information. When it is determined that the repetition of uplink data is to be performed, the terminal transmits, to the base station, uplink data through all contention zones indicated by the configuration field. When it is determined that the repetition of uplink data is not to be performed, the terminal transmits, to the base station, uplink data through one contention zone arbitrarily selected from among all the contention zones indicated by the configuration field.

公开(公告)号：US11089434B2

公开(公告)日：2021-08-10

申请号：US16651314

申请日：2018-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee

IPC: H04W4/02 ,  H04W24/08

Abstract: A method for transmitting, by a user equipment, reports for range estimation may comprise the steps of: receiving a signal from each of a plurality of beams of a base station; calculating a time delay or a phase difference of a signal for each of the plurality of beams; and reporting, to the base station, beam index information indicating a corresponding beam with the smallest time delay or the smallest phase difference on the basis of the calculation. The user equipment is capable of communicating with at least one of another user equipment, a user equipment related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US11032009B1

公开(公告)日：2021-06-08

申请号：US16937506

申请日：2020-07-23

Applicant: LG ELECTRONICS INC. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hojae Lee ,  Sangrim Lee ,  Kyungmin Woo ,  Hoon Kim

IPC: H04B10/00 ,  H04B10/516 ,  H04B10/11 ,  H04B10/60 ,  H04W88/08 ,  H04W88/02

Abstract: Disclosed herein is a method of transmitting a signal of a user equipment (UE) in a wireless communication system. The method includes generating an optical signal related to data transmission, combining an electrical signal for the data with the optical signal, and transmitting a combined signal.

公开(公告)号：US10999026B2

公开(公告)日：2021-05-04

申请号：US16320407

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee ,  Kwangseok Noh ,  Dongkyu Kim

IPC: H04L5/00 ,  H04L27/26

Abstract: A method for receiving orthogonal time, frequency and space (OFTS) basis allocation information by an user equipment in a wireless communication system using an OTFS transmission scheme includes receiving control information including information on an OTFS basis size N from a base station; and receiving data on OTFS bases of a predetermined size indexed according to a pre-defined rule in an N×N OTFS transform matrix on time and frequency domains corresponding to the OTFS basis size, wherein the OTFS bases of the OTFS basis size N is represented into an N×N OTFS transform matrix, wherein in the N×N OTFS transform matrix, a row index represents a cyclic frequency shift index, and a column index represents a cyclic time shift index, wherein the indexing according to the pre-defined rule includes indexing the OTFS bases of the predetermined size in an order such that the cyclic frequency shift and the cyclic time shift in the N×N OTFS transform matrix are maximized.