公开(公告)号：US10298353B2

公开(公告)日：2019-05-21

申请号：US15699511

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee

IPC: H04W74/08 ,  H04W24/02 ,  H04J11/00 ,  H04L25/02 ,  H04W76/27 ,  H04L5/00 ,  H04L25/03 ,  H04L27/20 ,  H04W72/04

Abstract: In an aspect of the present invention, provided is a method for receiving an uplink signal by a base station (BS) in a wireless communication system where a reference signal is not used, including: obtaining information bits by demodulating and decoding a signal of a first user equipment (UE) that is modulated through a differential modulation scheme; estimating a channel between the first UE and the BS using the information bits; and performing successive interference cancellation (SIC) using the signal of the first UE restored through the channel estimation results and the information bits. In this case, the BS may estimate the channel between the first UE and the BS by assuming that an Nth modulation symbol among modulation symbols of the information bits modulated through the differential modulation scheme is fixed to a predetermined constellation point.

公开(公告)号：US10075197B1

公开(公告)日：2018-09-11

申请号：US15452687

申请日：2017-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok Noh ,  Dongkyu Kim ,  Myeongjin Kim ,  Sangrim Lee ,  Hojae Lee

IPC: H03M13/00 ,  H03M13/09 ,  H04W28/04 ,  H03M13/29

Abstract: A method for transmitting a codeword in a wireless communication system is disclosed. The method includes generating a codeword by encoding an input signal based on a polar code, acquiring a Hamming weight from a bit sequence of at least a part of the codeword, generating Hamming weight information based on the Hamming weight, and transmitting the Hamming weight information and the codeword to a receiver. The Hamming weight information includes a range indicator indicating a range to which the Hamming weight belongs, among a plurality of ranges.

公开(公告)号：US20180124773A1

公开(公告)日：2018-05-03

申请号：US15440271

申请日：2017-02-23

Applicant: LG Electronics Inc.

Inventor： Sangrim Lee ,  Hojae Lee ,  Dongkyu Kim ,  Myeongjin Kim ,  Kwangseok Noh

IPC: H04W72/04 ,  H04L5/00

Abstract: A method of transmitting uplink control information (UCI) by a user equipment in a wireless communication system, includes the steps of receiving downlink control information (DCI) indicating a transmission time of the UCI through a prescribed frequency band in a first subframe, receiving a downlink data based on the DCI, and transmitting UCI associated with the downlink data in a second subframe based on the indicated transmission time of the UCI. In this case, the prescribed frequency band on which the DCI is transmitted is configured by a plurality of DCCUs (downlink control channel units) for transmitting the DCI, and the UCI may be transmitted on an UCCU (uplink control channel unit) in the second subframe, a frequency band of the first UCCU being same as a frequency band corresponding to a DCCU of a lowest frequency among the plurality of DCCUs.

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.

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：US11677467B2

公开(公告)日：2023-06-13

申请号：US17310562

申请日：2019-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee ,  Woonghee Lee

IPC: H04B10/116

CPC classification number: H04B10/116

Abstract: Proposed is a method for transmitting signals in visible light communications. The method for transmitting signals in visible light communications comprises: a step of receiving interference information from a receiving end; a step of transmitting a constellation set index to the receiving end; and a step of transmitting, to the receiving end, signals modified on the basis of the constellation set index. Meanwhile, the constellation set index may be selected on the basis of the received interference information.

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：US11336343B2

公开(公告)日：2022-05-17

申请号：US16622857

申请日：2018-06-07

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee

IPC: H04B7/0456 ,  H04L5/00 ,  H04L27/26

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. Specifically, a terminal receives information on a terminal-specific codebook from a base station. The terminal-specific codebook is included in a codebook for a predefined multi-dimensional modulation. The terminal performs multi-dimensional modulation-based encoding on an information bit on the basis of the terminal-specific codebook so as to generate a complex vector. The terminal performs DFT on the complex vector on the basis of the terminal-specific codebook so as to generate a frequency signal. The terminal transmits uplink data generated by performing IFFT on the frequency signal.

公开(公告)号：US11271619B2

公开(公告)日：2022-03-08

申请号：US17273816

申请日：2018-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Jiwon Kang ,  Hojae Lee

IPC: H04L5/12 ,  H04B7/0426 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/04 ,  H04W72/10

Abstract: In the present invention, disclosed are a method and terminal for performing beam management in a wireless connection system. In particular, the terminal comprises a radio frequency (RF) unit and a processor, and the processor controls the RF unit to receive information including a beam management region from a base station, wherein the beam management region may comprise a reference signal (RS) and preamble region, a first transition time region for transmission beam steering, and a second transition time region for reception beam steering.