公开(公告)号：US20250150132A1

公开(公告)日：2025-05-08

申请号：US18717780

申请日：2022-12-09

Applicant: LG Electronics Inc.

Inventor： Minseok JO ,  Bonghoe KIM ,  Kijun JEON ,  Sangrim LEE

IPC: H04B7/06 ,  H04L41/16

Abstract: According to various embodiments of the present disclosure, provided is a method of operating a terminal (user equipment, UE) in a wireless communication system comprising the steps of: receiving one or more synchronization signals from a base station (BS); receiving system information from the base station; receiving a radio resource control (RRC) message from the base station; receiving a first reference signal from the base station, the first reference signals being part of a plurality of first reference signals having an identical pattern, which are transmitted from the base station to a plurality of terminals including the terminal; transmitting a piece of first channel state information (CSI) associated with the first reference signal to the base station, the piece of first CSI being part of a plurality of pieces of first CSI that are transmitted from the plurality of terminals to the base station, on the basis of which a group is determined for each of the plurality of terminals from among a preset number of groups; receiving information about the group determined for the terminal from the base station; receiving a second reference signal from the base station on the basis of the information about the determined group, the second reference signal being part of a plurality of second reference signal that are transmitted from the base station to the plurality of terminals including the terminal; transmitting a piece of second CSI associated with the second reference signal to the base station, on the basis of the information about the determined group, the piece of second CSI being part of a plurality of pieces of second CSI associated with the plurality of second reference signals, which are transmitted from the plurality of terminals to the base station.

公开(公告)号：US20240322941A1

公开(公告)日：2024-09-26

申请号：US18573914

申请日：2021-06-23

Applicant: LG Electronics Inc.

Inventor： Kijun JEON ,  Sangrim LEE ,  Hojae LEE ,  Yeongjun KIM ,  Taehyun LEE

IPC: H04L1/00

CPC classification number: H04L1/0041 ,  H04L1/0061

Abstract: The present disclosure provides a method for performing federated learning by one user equipment (UE) with a plurality of user equipments (UEs) in a wireless communication system. More specifically, the method performed by one UE comprises receiving, from a base station, restriction information related to an order restriction for an information field for generating a local parameter transmitted by the one UE to perform the federated learning; performing encoding on the local parameter generated from an order restricted information field based on the restriction information, wherein the encoded local parameter consists of a systematic bit part and a parity part; performing modulation on the encoded local parameter, wherein the modulation is performed in different ways for each of the systematic bit part and the parity part; and transmitting, to the base station, a signal including the modulated local parameters.

公开(公告)号：US20230353247A1

公开(公告)日：2023-11-02

申请号：US18025767

申请日：2020-09-16

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Sangrim LEE ,  Kijun JEON ,  JaYeong KIM ,  Byungkyu AHN

IPC: H04B10/50 ,  H04B10/548 ,  H04B10/564

CPC classification number: H04B10/504 ,  H04B10/548 ,  H04B10/564

Abstract: The present specification provides a method, performed by an apparatus, for transmitting at least one beam in a wireless communication system, the method comprising transmitting the at least one beam to another apparatus and receiving information about a result of measuring the at least one beam from the other apparatus, wherein the at least one beam is a beam generated on the basis of a signal synthesized from a laser signal being incident on a meta surface from a power controller, the laser signal consists of a plurality of frequency components, the synthesized signal is a signal in which power amplification is applied to each of the plurality of frequency components, and the power amplification is applied on the basis of the intensity regarding each of the plurality of frequency components.

公开(公告)号：US20230327728A1

公开(公告)日：2023-10-12

申请号：US18024962

申请日：2020-09-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0634

Abstract: Disclosed is a method for aligning gradient symbols by using bias regarding AirComp in a signal amplitude range of a receiver. A method for aligning gradient symbols according to an embodiment of the present disclosure comprises the steps of: performing iteration of gradient values included in a first planar vector and applying clipping and bias values so as to obtain a second planar vector having gradient values in which symbols are aligned; and transmitting the second planar vector together with channel information to a server in the form of AirComp. Various embodiments of the present disclosure may be linked to an artificial intelligence module, a drone (unmanned aerial vehicle, UAV), a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to a 5G service, and the like.

公开(公告)号：US20220321213A1

公开(公告)日：2022-10-06

申请号：US17596854

申请日：2019-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Sangrim LEE ,  Kijun JEON

IPC: H04B10/079 ,  G01S13/06 ,  H04B10/40

Abstract: A method by which a transmission terminal transmits a signal in an optical wireless communication system can comprise: transmitting a first optical signal including a reference signal to a reception terminal having established a communication link with the transmission terminal; receiving feedback information about the first optical signal from the reception terminal; and transmitting a second optical signal to the reception terminal on the basis of the feedback information, wherein an orbital angular momentum (OAM) mode of the second optical signal can be selected on the basis of the feedback information.

公开(公告)号：US20220077957A1

公开(公告)日：2022-03-10

申请号：US17309931

申请日：2019-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Kijun JEON ,  Sangrim LEE

IPC: H04L1/00 ,  H03M13/11 ,  G06N3/04

Abstract: Proposed is a method for a terminal to decode a signal. In particular, the method for a terminal to decode a signal comprises: a step for demodulating a first low density parity check (LDPC)-coded signal; and a step for decoding a second signal obtained from the first demodulated signal through a trained neural network. The second signal is obtained by using: an output sequence generated on the basis of the trained neural network; and a log likelihood ratio (LLR) sequence of the first signal.

公开(公告)号：US20220069842A1

公开(公告)日：2022-03-03

申请号：US17421210

申请日：2019-12-05

Applicant: LG Electronics Inc.

Inventor： Kijun JEON ,  Sangrim LEE ,  Hojae LEE

IPC: H03M13/11 ,  H04L1/20 ,  H04L1/00

Abstract: A method for transmitting an information block on the basis of a low density parity check (LDPC) code in a wireless communication system, according to the present disclosure, may comprise: encoding an information block on the basis of a LDPC basegraph H_BG including [MATRIX]; and transmitting the encoded information block. Each element of H_BG is either zero (“0”) or one (“1”), and each element which is “0”, among the elements of H_BG, may represent a Z×Z zero matrix, and each element which is “1”, among the elements of H_BG, may represent a Z×Z matrix acquired on the basis of a circular permutation matrix acquired by circularly shifting a Z×Z identity matrix to the left or right. The submatrix T_BG of H_BG may be a dual diagonal matrix, and the submatrix D_BG of H_BG may be a dual diagonal matrix. The encoding of the information block on the basis of H_BG may comprise encoding the information block on the basis of a parity check matrix (PCM) H which corresponds to H_BG.

公开(公告)号：US20220029637A1

公开(公告)日：2022-01-27

申请号：US17261423

申请日：2018-07-27

Applicant: LG Electronics Inc.

Inventor： Kijun JEON ,  Bonghoe KIM ,  Kwangseok NOH

IPC: H03M13/11 ,  H04L1/00

Abstract: A method for performing low-density parity-check (LDPC) decoding by a communication apparatus may comprise the steps of: acquiring information on a shortening pattern; setting a log-likelihood ratio (LLR) value of a shortening part on the basis of the information on the shortening pattern so as to perform first decoding; and verifying validation of a corresponding codeword on the basis of a result of the first decoding.

公开(公告)号：US20250015890A1

公开(公告)日：2025-01-09

申请号：US18695712

申请日：2022-10-04

Applicant: LG Electronics Inc.

Inventor： Hojae LEE ,  Sangrim LEE ,  Kijun JEON ,  JaYeong KIM ,  Byungkyu AHN

IPC: H04B10/112 ,  G02B27/28 ,  G03B21/20

Abstract: 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.

公开(公告)号：US20240129755A1

公开(公告)日：2024-04-18

申请号：US18267666

申请日：2020-12-31

Applicant: LG Electronics Inc.

Inventor： Kijun JEON ,  Sangrim LEE ,  Sungjin KIM ,  Hojae LEE ,  Yeongjun KIM ,  Taehyun LEE

IPC: H04W24/02 ,  H04W24/10 ,  H04W52/50 ,  H04W74/00 ,  H04W74/0833

CPC classification number: H04W24/02 ,  H04W24/10 ,  H04W52/50 ,  H04W74/002 ,  H04W74/0833

Abstract: In the present specification, provided are an apparatus and a method for obtaining gradient information, performed by a terminal, in a wireless communication system, wherein the terminal transmits a random access (RA) preamble to a base station, receives a random access response (RAR) from the base station in response to the RA preamble, performs a radio resource control (RRC) connection procedure with the base station, establishes a digital transmission link on the basis of the RRC connection procedure with the base station, and establishes an airComp link that is a link for federated learning with the base station, wherein the terminal acquires the gradient information corresponding to data, and the terminal obtains first information and second information from the gradient information on the basis of data splitting modulation, wherein the first information is information having a lower priority among the information obtained on the basis of the gradient information, the second information is information having a high priority among the information obtained on the basis of the gradient information, the terminal transmits the first information to the base station on a first area, and the terminal transmits the second information to the base station on a second area, wherein the first area is an area distinct from the second area in terms of a frequency domain and a time domain, the first area is a resource area used on the airComp link, and the second region is a resource area used on a digital transmission link.