公开(公告)号：US20240007849A1

公开(公告)日：2024-01-04

申请号：US18039878

申请日：2021-11-30

Applicant: LG Electronics Inc.

Inventor： Kyung Ho LEE ,  Sangrim LEE ,  Yeong Jun KIM ,  Sungjin KIM

IPC: H04W12/02 ,  H04W72/04

CPC classification number: H04W12/02 ,  H04W72/04

Abstract: The present disclosure relates to a method of operating a terminal according to an embodiment, including receiving, by the terminal, federated learning-related configuration information from a base station, configuring, by the terminal, a resource associated with federated learning based on the federated learning-related configuration information, transmitting, by the terminal, a differential privacy level to the base station, receiving, by the terminal, the differential privacy-related information from the base station, generating, by the terminal, a pseudo random sequence based on the differential privacy-related information, and transmitting, by the terminal, data to the base station based on the pseudo random sequence. The differential privacy-related information is based on the differential privacy level. The data is transmitted based on the configured resource.

公开(公告)号：US20230300895A1

公开(公告)日：2023-09-21

申请号：US18023127

申请日：2020-08-24

Applicant: LG Electronics Inc.

Inventor： Yeongjun KIM ,  Kijun JEON ,  Kyungho LEE ,  Sangrim LEE ,  Sungjin KIM

IPC: H04W74/08 ,  H04W76/10 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W76/10 ,  H04W74/006

Abstract: The present specification discloses a method and device. The method, which is for transmitting side information in a wireless communication system and performed by a terminal, comprises the steps of: transmitting a random access (RA) preamble to a base station; receiving a random access response (RAR) from the base station; performing a radio resource control (RRC) connection procedure with the base station; and establishing a digital transmission link with the base station, wherein the terminal acquires local gradient information about at least one resource, acquires side information from the local gradient information, and transmits the side information to the base station via the digital transmission link.

公开(公告)号：US20230299950A1

公开(公告)日：2023-09-21

申请号：US18023281

申请日：2020-08-24

Applicant: LG ELECTRONICS INC.

Inventor： Byungkyu AHN ,  Sangrim LEE ,  Hojae LEE ,  JaYeong KIM ,  Sungjin KIM

IPC: H04L9/08 ,  H04L1/20 ,  H03M13/11 ,  G06N3/084

CPC classification number: H04L9/0852 ,  H04L1/203 ,  H03M13/11 ,  G06N3/084

Abstract: The present specification provides a method for estimating a quantum bit error rate (QBER) for key information, performed by a device in a quantum cryptography communication system, the method and device being characterized by: receiving a random access (RA) preamble from another device; transmitting a random access response (RAR) to the other device, in 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 the key information, wherein the key information is determined on the basis of estimation of the QBER, and the device estimates the QBER on the basis of first two-dimensional parity information received from the other device through a public channel.

公开(公告)号：US20230216592A1

公开(公告)日：2023-07-06

申请号：US17928146

申请日：2020-05-28

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Sangrim LEE ,  Kijun JEON

IPC: H04B10/508 ,  H04B10/11 ,  H04B10/50

CPC classification number: H04B10/508 ,  H04B10/11 ,  H04B10/503

Abstract: The present specification provides a method and apparatus, the method being for transmitting a beam, performed by the apparatus, in an optical wireless communication system, and comprising: generating a pulse laser signal; making the pulse laser signal to be incident on a metasurface, wherein the beam is generated on the basis that the pulse laser signal is incident on the metasurface; and transmitting the beam to a reception apparatus, wherein the metasurface is determined on the basis of ω_0, d, Δω, and N, wherein ω_0 is a value of a center frequency, d is a value of a virtual antenna interval, Δω is a value of a frequency comb interval, and N is a value related to the number of frequency combs present within a gain bandwidth based on the center frequency.

公开(公告)号：US20220393918A1

公开(公告)日：2022-12-08

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：US20220360473A1

公开(公告)日：2022-11-10

申请号：US17624202

申请日：2019-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Byounghoon KIM

IPC: H04L25/02 ,  H04B17/30 ,  H04L1/20 ,  H04L25/49 ,  H04L27/22

Abstract: A method for transmitting and receiving a signal in a wireless communication system and an apparatus therefor are disclosed in the present disclosure. Specifically, a method for transmitting and receiving a signal by a receiving apparatus in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: continuously receiving a plurality of reference signals from a transmitting apparatus; sorting the ranges of channel phases on the basis of the plurality of reference signals; grouping the ranges of the channel phases into two or more groups; and receiving a data signal from the transmitting apparatus.

公开(公告)号：US20220271776A1

公开(公告)日：2022-08-25

申请号：US17627434

申请日：2019-07-16

Applicant: LG Electronics Inc.

Inventor： Kijun JEON ,  Sangrim LEE

IPC: H03M13/11 ,  H03M13/00 ,  H03M13/27

Abstract: A method for performing low density parity check (LDPC) coding of a transmitter in a wireless communication system, according to the present disclosure, may comprise the steps of: acquiring a proto-matrix corresponding to a protograph; on the basis of weights and lifting factors of columns of the proto-matrix, acquiring one or more permuted vectors corresponding to each of the columns, a first permuted vector included in the one or more permuted vectors having been randomly generated; distributing the one or more permuted vectors for each row of a corresponding column; on the basis of the distributed one or more permuted vectors, acquiring a plurality of lifted sub matrices corresponding to a plurality of elements of the proto-matrix; generating a base graph on the basis of the plurality of lifted sub matrices; generating a parity check matrix (PCM) on the basis of the base graph; and performing LDPC coding by using the PCM.

公开(公告)号：US20220038247A1

公开(公告)日：2022-02-03

申请号：US17505390

申请日：2021-10-19

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong LEE ,  Jaehoon CHUNG ,  Genebeck HAHN ,  Jinmin KIM ,  Kukheon CHOI ,  Kwangseok NOH ,  Sangrim LEE

IPC: H04L5/00 ,  H04L5/14 ,  H04L1/00 ,  H04W72/12 ,  H04W72/04

Abstract: A method for receiving downlink data by the terminal in a wireless communication system, includes receiving, from a base station, downlink control information for scheduling a short physical downlink shared channel (sPDSCH) on a short physical downlink control channel (sPDCCH), and receiving, from the base station, downlink data on the sPDSCH based on the downlink control information. Here, the sPDCCH and the sPDSCH are based on a first transmission time interval (TTI)-based radio frame structure, wherein the first TTI-based radio frame structure is shorter in time than a second TTI-based radio frame structure related to (i) a physical downlink shared channel (PDSCH) and (ii) a physical downlink control channel (PDCCH). Further, a number of resource element groups (REGs) consisting of a control channel element (CCE) related to the sPDCCH is smaller than a number of resource element groups (REGs) composed of a CCE related to the PDCCH.

公开(公告)号：US20210218418A1

公开(公告)日：2021-07-15

申请号：US16492458

申请日：2017-03-09

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Dongkyu KIM ,  Myeongjin KIM ,  Sangrim LEE ,  Hojae LEE

IPC: H03M13/11 ,  H03M13/09 ,  H03M13/00 ,  H04L1/00

Abstract: An improved layered decoding method for a low density parity check (LDPC) code and a device therefor are disclosed. Disclosed is the layered decoding method for an LDPC code, capable of determining whether decoding is successful by performing a syndrome check on each check node at every variable node update. In addition, the syndrome check can be performed by using reduced variable nodes, thereby reducing decoding power consumption and decoding time consumption.

公开(公告)号：US20210135919A1

公开(公告)日：2021-05-06

申请号：US16480911

申请日：2018-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Sangrim LEE

IPC: H04L27/26 ,  H04J13/16 ,  H04J13/10 ,  H04W52/14

Abstract: Provided are a method and a device for transmitting uplink data by using a non-orthogonal code multiple access scheme in a wireless communication system. Particularly, a terminal receives control information from a base station. The terminal selects a terminal-specific codeword or receives allocation information of the terminal-specific codeword on the basis of the control information. The terminal transmits uplink data by using the terminal-specific codeword. The terminal-specific codeword is determined as a codeword having a value with a low peak-to-average power ratio (PAPR), when the terminal is located on the outside of a cell. The terminal-specific codeword is determined as a codeword having a value with a high PAPR, when the terminal is located in the center of the cell.