公开(公告)号：US10225109B2

公开(公告)日：2019-03-05

申请号：US15249119

申请日：2016-08-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/02 ,  H04L5/00 ,  H04L5/14

Abstract: A method for transmitting information related to a sounding reference signal (SRS) transmission by a base station (BS) of a full duplex radio (FDR) mode in a wireless communication system includes: transmitting information related to a resource region to be used for the SRS transmission to a user equipment of the FDR mode within a resource region configured as an uplink (UL) idle interval; receiving a SRS through the resource region for the SRS transmission from the user equipment; performing an uplink (UL) channel estimation based on the received SRS; and performing a downlink (DL) channel estimation by applying a channel reciprocity characteristic to a result of the uplink (UL) channel estimation.

公开(公告)号：US10117242B2

公开(公告)日：2018-10-30

申请号：US15411696

申请日：2017-01-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04J3/00 ,  H04W72/04 ,  H04W16/28 ,  H04L5/22 ,  H04W74/08 ,  H04W4/00 ,  H04W4/70

Abstract: A method of performing contention based multiple access (MA) by a base station in a wireless communication system, includes receiving information regarding a best beam ID (identifier) from each user equipment (UE), allocating a resource for contention based multiple access per beam based on a number of best beam ID per beam obtained from the information regarding the best beam ID received from the each UE, and transmitting information regarding the resource for the contention based multiple access allocated per beam, to the each UE. In this case, an amount of the resource allocated for the contention based multiple access per beam is in proportion to the number of best beam ID per beam.

公开(公告)号：US12294414B2

公开(公告)日：2025-05-06

申请号：US18003955

申请日：2020-07-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04B10/70

Abstract: The present specification provides a method and a device, the method, performed by a device, for transmitting a first pulse train in a quantum communication system being characterized by: receiving a random access (RA) preamble from another device; transmitting an RA response (RAR) to the other device as a response to the RA preamble; performing a radio resource control (RRC) connection process with the other device; receiving data from the other device; and decoding the data on the basis of key information, wherein a first pulse train is generated in a laser diode of the device, and the key information is determined on the basis that the first pulse train passes through both a first path and a second path and is then transmitted from the device to the other device via a quantum channel.

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.