公开(公告)号：US20230079521A1

公开(公告)日：2023-03-16

申请号：US17799074

申请日：2020-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Jeon ,  Sangrim Lee ,  Hojae Lee

IPC: H04L25/03 ,  H04L25/02

Abstract: A method for receiving data by a terminal in a wireless communication system according to the present document comprises: receiving a channel signal and a reference signal (RS) from a base station; and generating a sequence by filtering the RS, and decoding the channel signal on the basis of the generated sequence, wherein the filtering is zero forcing (ZF) filtering, and the decoding of the channel signal is a selection of one parameter from among parameter sets generated in accordance with a colored-noise machine learning process.

公开(公告)号：US11469819B2

公开(公告)日：2022-10-11

申请号：US17425210

申请日：2019-01-30

Applicant: LG Electronics Inc.

Inventor： Hojae Lee ,  Dongkyu Kim ,  Bonghoe Kim ,  Sangrim Lee ,  Woonghee Lee ,  Kijun Jeon

IPC: H04B10/116 ,  H04B10/54 ,  H04B10/69

Abstract: Proposed is a signal transmission method for a transmitting end performing visible light communication. The signal transmission method for a transmitting end performing visible light communication comprises: a step of modulating a signal; and a step of applying analog dimming control on the modulated signal and transmitting same. Meanwhile, the analog dimming control may include biasing of the modulated signal, and scaling of the modulated signal.

公开(公告)号：US11343847B2

公开(公告)日：2022-05-24

申请号：US16488498

申请日：2018-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee

IPC: H04W74/00 ,  H04W4/70 ,  H04W52/32 ,  H04W72/08 ,  H04W74/08 ,  H04W88/06

Abstract: A method for a user equipment (UE) to transmit an uplink signal in a wireless communication system according to an embodiment of the present invention includes the steps of: determining a data transmission mode; and transmitting to a base station through a competition resource region, a control channel carrying control information including the data transmission mode, a data channel carrying at least one transmission block (TB), and a preamble, wherein the preamble indicates the position of a resource to which the control channel is mapped in the competition resource region, and the data transmission mode determined by the UE can correspond to one among a first transmission mode in which 1 TB is transmitted by being divided into N sub-blocks or a second transmission mode in which 1 TB is repeatedly transmitted M times. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the base station or a network.

公开(公告)号：US20220070864A1

公开(公告)日：2022-03-03

申请号：US17421216

申请日：2019-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Jeon ,  Sangrim Lee ,  Hojae Lee

IPC: H04W72/04

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：US11229054B2

公开(公告)日：2022-01-18

申请号：US16761024

申请日：2018-11-05

Applicant: LG Electronics Inc.

Inventor： Gwanmo Ku ,  Sangrim Lee ,  Hojae Lee ,  Hyukjin Chae ,  Sangwook Han

IPC: H04W74/08 ,  H04W4/06 ,  H04W92/18

Abstract: The method for feedback for broadcast- or multicast-based device-to-device communication in a wireless communication system, according to one embodiment of the present disclosure, is performed by a first terminal and may comprise the steps of: determining whether or not a collision has occurred in data received from a counterpart terminal; and in response to the determination that a collision has occurred, transmitting feedback information, including collision resource information and terminal operation information, to the counterpart terminal.

公开(公告)号：US11206042B2

公开(公告)日：2021-12-21

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：US11129202B2

公开(公告)日：2021-09-21

申请号：US16487268

申请日：2018-01-24

Applicant: LG Electronics Inc.

Inventor： Sangrim Lee ,  Hojae Lee

IPC: H04W74/08 ,  H04L1/08 ,  H04W72/12

Abstract: A method by which a terminal transmits an uplink signal in a wireless communication system, according to one embodiment of the present invention, includes: transmitting any one of a plurality of preambles; and performing a contention-based transmission of data in consideration of the transmitted preamble, wherein each of the plurality of preambles is linked with a plurality of data resource areas, and when the contention-based transmission of data is performed, the terminal can repeatedly transmit the data through the plurality of data resource areas linked with the transmitted preamble. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US11115253B2

公开(公告)日：2021-09-07

申请号：US16480911

申请日：2018-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee

IPC: H04L27/26 ,  H04J13/10 ,  H04J13/16 ,  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.

公开(公告)号：US20210152022A1

公开(公告)日：2021-05-20

申请号：US17047526

申请日：2018-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Sangrim Lee ,  Hojae Lee

IPC: H02J50/20 ,  H01Q1/24 ,  H01Q1/52 ,  H02J50/40 ,  H02J50/00 ,  H02J50/80

Abstract: The present disclosure relates to an apparatus and a method for performing transmission and reception of wireless power. The apparatus comprises: a transmission signal processing unit configured to generate a transmission data signal and perform a modulation and an amplification; a transmission antenna configured to convert the transmission data signal into an RF signal and transmit the RF signal; at least one reception antenna configured to receive at least one of the RF signal or an external signal received from the outside; a wireless power reception unit configured to harvest power from the RF signal received through the at least one reception antenna; and a reception signal processing unit configured to demodulate the external signal received through the at least one reception antenna. Since the RF signal, which is radiated by the apparatus itself, is received again and utilized for power charging, energy can be recycled.

公开(公告)号：US11005541B2

公开(公告)日：2021-05-11

申请号：US16765844

申请日：2018-11-21

Applicant: LG ELECTRONICS INC.

Inventor： Woonghee Lee ,  Sangrim Lee ,  Hojae Lee

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/0417 ,  H04B17/27 ,  H04B7/06

Abstract: A method for transmitting feedback information by a terminal may comprise the steps of: measuring a channel; multiplying a first matrix associated with the measured channel by a transformation matrix, so as to obtain a second matrix and transmitting the obtained second matrix to a base station in a bit format. In addition, the transformation matrix may be determined on the basis of an angle offset satisfying a predetermined condition.