公开(公告)号：US20230422054A1

公开(公告)日：2023-12-28

申请号：US18024889

申请日：2020-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Jeon ,  Sangrim Lee ,  Hojae Lee ,  Yeongjun Kim ,  Sungjin Kim

IPC: H04W24/02 ,  H04W74/08

CPC classification number: H04W24/02 ,  H04W74/0833

Abstract: Disclosed is a method by which a base station performs federated learning in a wireless communication system. A method, according to one embodiment of the present disclosure, comprises: receiving, by a base station, a plurality of local parameters from a plurality of terminals; obtaining an integrated parameter on the basis of the plurality of local parameters; and transmitting the integrated parameter to each of the plurality of terminals, wherein at least one bias included in the plurality of local parameters is removed by using the plurality of local parameters. The base station/terminals of the present disclosure may be linked to an artificial intelligence, module, an unmanned aerial vehicle (UAV), a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to a 6G service, and the like.

公开(公告)号：US11528036B2

公开(公告)日：2022-12-13

申请号：US17421210

申请日：2019-12-05

Applicant: LG Electronics Inc.

Inventor： Kijun Jeon ,  Sangrim Lee ,  Hojae Lee

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

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：US11463197B2

公开(公告)日：2022-10-04

申请号：US16968500

申请日：2019-02-20

Applicant: LG Electronics Inc.

Inventor： Kwangseok Noh ,  Bonghoe Kim ,  Kijun Jeon

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/13 ,  H04W72/04

Abstract: A method for operating a communication device in a wireless communication system, according to the present embodiment, comprises the steps of: determining first information related to an aggregation level for a PDCCH and second information related to a mother code size for a polar code, the aggregation level being related to a first level to a fifth level, the mother code size being related to a first size to a third size, and the second information being determined according to the first information; determining whether the first information is determined to be the third level; and generating a CRC block comprising a masking sequence of a first type, when the first information is considered to be determined to be the third level.

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：US12045721B2

公开(公告)日：2024-07-23

申请号：US17496866

申请日：2021-10-08

Applicant: LG Electronics Inc. ,  The University of Hong Kong

Inventor： Kijun Jeon ,  Kaibin Huang ,  Dingzhu Wen ,  Sangrim Lee ,  Sungjin Kim

IPC: H04L41/16 ,  G06N3/08 ,  H04W24/02 ,  H04W24/10

CPC classification number: G06N3/08 ,  H04L41/16 ,  H04W24/02 ,  H04W24/10

Abstract: In a neural network (NN) based wireless communication system, a BS determines, for an one-round latency T and an overall model size L of the NN model, i) Tu that makes {circumflex over (L)}*(Tu) larger than L and ii) Tl that makes {circumflex over (L)}*(Tl)

公开(公告)号：US12166530B2

公开(公告)日：2024-12-10

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

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：US12081277B2

公开(公告)日：2024-09-03

申请号：US17920712

申请日：2020-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee ,  Kijun Jeon

IPC: H04B10/11 ,  H04B10/67 ,  H04B10/69 ,  H04W72/23

CPC classification number: H04B10/6972 ,  H04B10/67 ,  H04W72/23

Abstract: According to one embodiment of the present invention, an apparatus and method for transmitting and receiving signals in a wireless communication system comprise receiving an optical signal including an interference signal and a target signal, attenuating the interference signal, and converting the optical signal in which the interference signal is attenuated, into electric signals via a photodiode array, wherein a transceiver comprises a first optical filter upon which the optical signal is incident, and a second optical filter upon which the optical signal having passed through the first optical filter is incident, wherein the interference signal may be attenuated through the first optical filter and the second optical filter.

公开(公告)号：US11831437B2

公开(公告)日：2023-11-28

申请号：US17619408

申请日：2019-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Byounghoon Kim ,  Kijun Jeon

IPC: H04L1/18

CPC classification number: H04L1/18

Abstract: Disclosed is a method by which a terminal decodes a codeword in a wireless communication system. Specifically, the method may comprise: receiving a plurality of codewords; and decoding the plurality codewords on the basis of successive interference cancellation (SIC). In particular, the SIC may be performed on the basis of a decoding policy for decoding the plurality of codewords. In particular, the decoding policy may be determined by a neural network trained on the basis of a state and a reward related to the plurality of codewords.

公开(公告)号：US20220376954A1

公开(公告)日：2022-11-24

申请号：US17624199

申请日：2019-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee ,  Kijun Jeon

IPC: H04L25/02 ,  H04B17/309 ,  H04L1/00 ,  H04L1/20 ,  H04L25/06 ,  H04L25/49

Abstract: The present disclosure provides a method for transmitting and receiving in a wireless communication system and an apparatus therefore. Specifically, in a wireless communication system according to an embodiment of the present disclosure, there is provided a method for transmitting and receiving a signal by a receiving apparatus, the method includes receiving, from a transmitting apparatus, signals modulated based on a differential phase shift keying (DPSK) method through a plurality of reception paths, calculating a differential value in each reception path of the plurality of reception paths based on the received signals, and calculating reliability for the received signals, in which the reliability is proportional to a real value of a sum of the differential values in each reception path of the plurality of reception paths.

公开(公告)号：US12120652B2

公开(公告)日：2024-10-15

申请号：US17421216

申请日：2019-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Jeon ,  Sangrim Lee ,  Hojae Lee

IPC: H04W72/04 ,  H04W72/0453

CPC classification number: H04W72/0453

Abstract: The present specification provides a method for transmitting a signal in a wireless communication system. More specifically, the method performed by a transmission terminal comprises the steps of: generating at least one bit into a complex symbol by using a modulation scheme; mapping the complex symbol to subcarriers each having an even index or subcarriers each having an odd index among subcarriers of at least one configured resource block; performing IFFT on the subcarriers to which the complex symbol is mapped, in order to generate a time-continuous signal; performing a DC bias on the time-continuous signal; and transmitting the DC biased signal.