公开(公告)号：US20250008449A1

公开(公告)日：2025-01-02

申请号：US18294877

申请日：2021-08-03

Applicant: LG Electronics Inc.

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

IPC: H04W52/32 ,  H04L1/00 ,  H04L41/16

Abstract: Proposed are a method for performing federated learning in a wireless communication system, and an apparatus therefor. The method performed by a terminal may comprise the steps of: generating a Q-ary code including i) a restriction-based system part and ii) a parity part by coding restriction-based Q-ary information; determining, on the basis of a preset method, the number T of transmissions of the parity part of the Q-ary code; on the basis of specific channel information from among channel information between a plurality of terminals and a base station participating in the federated learning, allocating power to the system part and T parity parts; and transmitting, on the basis of the allocated power, the system part and the T parity parts to the base station.

公开(公告)号：US20240394602A1

公开(公告)日：2024-11-28

申请号：US18687698

申请日：2021-09-01

Applicant: LG ELECTRONICS INC.

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

IPC: G06N20/00

Abstract: The present specification provides a method by which a plurality of terminals perform federated learning in a wireless communication system. More particularly, the method performed by one terminal comprises the steps of: receiving, from a base station, a first downlink signal for requesting information regarding learning data for the federated learning, which is used by the one terminal; transmitting, to the base station, the information regarding the learning data on the basis of a type of learning data, the information regarding the learning data being information related to the distribution of the learning data used by the one terminal; receiving, from the base station, a second downlink signal including parameter information regarding a parameter related to a configuration for performing the federated learning, which has been determined on the basis of the learning data; and performing the federated learning on the basis of the information regarding the parameter.

公开(公告)号：US20240007278A1

公开(公告)日：2024-01-04

申请号：US18044167

申请日：2021-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jayeong KIM ,  Sangrim LEE ,  Hojae LEE ,  Byungkyu AHN

IPC: H04L9/08 ,  G02F1/09 ,  H04B10/508 ,  H04B10/079

CPC classification number: H04L9/0858 ,  H04B10/079 ,  H04B10/508 ,  G02F1/09

Abstract: A method of operating a terminal and a base station in a wireless communication system and a device supporting the same are disclosed. As an example, a method performed by a first device in a communication system may comprise transmitting, to a second device, a random access (RA) preamble, receiving, from the second device, a random access response (RAR) message as a response to the RA preamble, performing a radio resource control (RRC) connection procedure with the second device, generating a sift key for communication with the second device, and performing communication through a radio channel with the second device using the sift key.

公开(公告)号：US20230361965A1

公开(公告)日：2023-11-09

申请号：US18027322

申请日：2021-09-27

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Hojae LEE

IPC: H04L5/00 ,  H04W72/0453 ,  H04W16/28

CPC classification number: H04L5/0051 ,  H04W72/0453 ,  H04W16/28

Abstract: A transmission device in a wireless communication system: maps respective reference signals for a plurality of antennas to frequency resources; and transmits the reference signals on the frequency resources. Mapping the reference signals to the frequency resources comprises mapping the reference signals such that: (i) the frequency difference between a frequency resource fm,n for a reference signal of an antenna Vm,n and a frequency resource fm−1,n for a reference signal of an antenna Vm−1,n is Δfm; and (ii) the frequency difference between the frequency resource fm,n and a frequency resource fm,n−1 for a reference signal of an antenna Vm,n−1 is Δfn, wherein m is an antenna index along a first direction, and n is an antenna index along a second direction orthogonal to the first direction.

公开(公告)号：US20210084597A1

公开(公告)日：2021-03-18

申请号：US16603209

申请日：2018-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Sangwook HAN ,  Gwanmo KU ,  Sangrim LEE ,  Hojae LEE

IPC: H04W52/14 ,  H04W52/28 ,  H04W74/08 ,  H04W52/36 ,  H04W80/02 ,  H04W56/00

Abstract: The present invention relates to a method and device for allowing a terminal to transmit, to a base station, uplink data in a wireless communication system. According to the present invention, the terminal: performs a random access procedure with a base station; sets transmission power for transmitting first uplink data; and transmits, to the base station, the first uplink data according to the set transmission power, wherein the transmission power can be set according to an altitude of the terminal.

公开(公告)号：US20200028611A1

公开(公告)日：2020-01-23

申请号：US16499716

申请日：2018-03-22

Applicant: LG Electronics Inc.

Inventor： Hojae LEE ,  Sangrim LEE

IPC: H04L1/00 ,  H04J99/00 ,  H04W72/12 ,  H04W72/14

Abstract: Provided is a method and device for transmitting uplink data by using a non-orthogonal code multiple access scheme in a wireless communication system. Specifically, a terminal supporting multiple layers receives an NoMA MCS index from a base station. The NoMA MCS index is selected from an NoMA MCS table on the basis of the quality of an uplink channel. The NoMA MCS table is defined in advance as a table including the NoMA MCS index, the number of multiple layers, and a modulation order. The number of multiple layers is determined according to the NoMA MCS index. The terminal transmits the uplink data configured on the basis of the NoMA MCS index, via the multiple layers.

公开(公告)号：US20190335471A1

公开(公告)日：2019-10-31

申请号：US16309415

申请日：2016-07-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04L5/00 ,  H04L1/18 ,  H04L5/14 ,  H04L1/00 ,  H04L5/16

Abstract: A method for performing a Hybrid Automatic Repeat request (HARQ) procedure by a terminal operating in an FDR mode in a wireless communication system comprises the steps of: receiving a downlink signal from a base station; and transmitting feedback information including a NACK signal for the downlink signal to the base station, wherein the feedback information may further include an indicator indicating that the reason for transmitting the NACK signal is that the terminal has failed to remove a self-interference signal.

公开(公告)号：US20190289623A1

公开(公告)日：2019-09-19

申请号：US16339967

申请日：2017-04-28

Applicant: LG Electronics Inc.

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

IPC: H04W72/12 ,  H04L27/26 ,  H04W74/08 ,  H04W72/02 ,  H04L5/00

Abstract: According to an embodiment of the present invention, a method is disclosed for transmitting a signal on the basis of a competition-based non-orthogonal multiple access scheme, by means of a terminal in a wireless communication system. At this time, the method for transmitting a signal comprises: a step of transmitting a first codeword on the basis of the competition-based NoMA scheme; a step of receiving a negative response to the first codeword transmission from a base station; a step of selecting a second codeword, taking into account a magnitude vector and a correlation of the first codeword; and a step of transmitting the selected second codeword on the basis of the competition-based NoMA scheme.

公开(公告)号：US20190140774A1

公开(公告)日：2019-05-09

申请号：US16096274

申请日：2016-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok NOH ,  Dongkyu KIM ,  Hyunsoo KO ,  Sangrim LEE ,  Hojae LEE

IPC: H04L1/00 ,  H04L5/00 ,  H03M13/09

Abstract: According to the present invention, a method by which a communication device receives ACK/NACK can comprise the steps of: checking transport block (TB) cyclic redundancy check (CRC) after performing channel decoding on received data; and determining whether the terminal has received an ACK signal or has received a NACK signal, according to the TB CRC checking result.

公开(公告)号：US20190140663A1

公开(公告)日：2019-05-09

申请号：US16310266

申请日：2017-06-12

Applicant: LG Electronics Inc.

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

IPC: H03M13/13 ,  H03M13/00 ,  H04L1/00

Abstract: A data retransmission method for a polar code, and a device therefor are disclosed. The data retransmission method of the disclosure can comprise the steps of: generating a first data block by allocating a plurality of data bits to input bits, with high priorities, among input bits of a polar code encoding module on the basis of a target encoding rate; transmitting the generated first data block; generating a second data block by allocating first data bits among the plurality of data bits to input bits, with low priorities, among the input bits of the polar code encoding module, on the basis of the target encoding rate and shortening bits; and transmitting the generated second data block as a retransmission of the first data block.