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：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.

公开(公告)号：US11784663B2

公开(公告)日：2023-10-10

申请号：US17627434

申请日：2019-07-16

Applicant: LG Electronics Inc.

Inventor： Kijun Jeon ,  Sangrim Lee

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

CPC classification number: H03M13/1168 ,  H03M13/1185 ,  H03M13/2778 ,  H03M13/6544

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：US11777524B2

公开(公告)日：2023-10-03

申请号：US17605850

申请日：2019-04-22

Applicant: LG Electronics Inc.

Inventor： Kijun Jeon ,  Sangrim Lee

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

CPC classification number: H03M13/1148 ,  H03M13/611 ,  H04L1/0057

Abstract: A method for supporting a rate-compatible non-binary LDPC code, performed by a wireless device, according to the present embodiment, comprises the steps of: acquiring a kernel part comprising a plurality of first check nodes and a plurality of first variable nodes, the kernel part having a predetermined first code rate applied thereto, and the level of each of the plurality of first variable nodes included in the kernel part being set to 2; and generating, on the basis of the kernel part, a protograph having a second code rate, when a change from the first code rate to the second code rate is required.

公开(公告)号：US20220385406A1

公开(公告)日：2022-12-01

申请号：US17619408

申请日：2019-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Byounghoon Kim ,  Kijun Jeon

IPC: 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：US12273159B2

公开(公告)日：2025-04-08

申请号：US18042107

申请日：2020-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Jeon ,  Sangrim Lee ,  Hojae Lee ,  Ikjoo Jung ,  Taehyun Lee

IPC: H04B7/0404 ,  G06N3/045 ,  H04B7/0452

Abstract: Disclosed is a method by which a terminal controls the calculations of a deep neural network in a wireless communication system. A method according to one embodiment of the present disclosure receives a downlink from a base station of a wireless communication system by using a multi input multi output (MIMO) operation, pre-processes the downlink on the basis of a result of calculations of a deep neural network in a terminal, acquires the number of a plurality of transmission antennas connected to the terminal, acquires the number of a plurality of reception antennas connected to the terminal, and forms a plurality of overlapping neural networks overlapping in the deep neural network, on the basis of a preset number of reference antennas, the number of transmission antennas, and the number of reception antennas. The terminal of the present disclosure can 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 6G services, and the like.