公开(公告)号：US20190305877A1

公开(公告)日：2019-10-03

申请号：US16301718

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Kijun KIM ,  Byounghoon KIM ,  Sangrim LEE

IPC: H04L1/00 ,  H04W74/08 ,  H04L5/00 ,  H04W76/27 ,  H04W88/02

Abstract: Provided are a method and an apparatus for competition-based transmitting of uplink data in a wireless communication system to which a non-orthogonal multiple access scheme is applied. Particularly, a terminal receives, from a base station, information relating to a predefined modulation pattern for non-orthogonal multiple access. The information relating to the predefined modulation pattern includes a modulation pattern index. The modulation pattern index indicates designation of a terminal-specific modulation order for each resource element in a resource used overlappingly by multiple terminals. The terminal transmits data to the base station using the modulation order designated to each of the resource elements on the basis of the information relating to the predetermined modulation pattern.

公开(公告)号：US20190165972A1

公开(公告)日：2019-05-30

申请号：US16320834

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/03 ,  H04L25/02

Abstract: A method for a terminal for detecting data transmitted according to the multiuser superposition transmission system comprises the steps of: receiving, from a base station, downlink control information comprising information for a codeword subset selected form a non-orthogonal codebook comprising an orthogonal subset and non-orthogonal subset; estimating a channel on the basis of a reference signal symbol or reference signal pattern corresponding to the selected codebook subset; and, on the basis of the channel estimation, detecting desired data symbols on the basis of the selected codebook subset, wherein the superposed data symbols are symbols comprising data not only for the terminal but also for other terminals.

公开(公告)号：US20190165917A1

公开(公告)日：2019-05-30

申请号：US16098395

申请日：2016-06-08

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon CHOI ,  Hyunsoo KO ,  Sangrim LEE ,  Hojae LEE

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/11 ,  H04L1/18 ,  H04L27/26

Abstract: Disclosed is an uplink communication method for: receiving data through an mmWave downlink from an mmWave base station; transmitting, to the mmWave base station, an ACK/NACK reply to the data and an mmWave uplink reference signal through an mmWave uplink; receiving, from the mmWave base station, an indicator indicating use of a legacy uplink instead of the mmWave uplink; shortening the length of a legacy TTI to correspond to the length of an mmWave TTI according to the indicator; and communicating with the mmWave base station through the legacy uplink using the shortened legacy TTI.

公开(公告)号：US20190150191A1

公开(公告)日：2019-05-16

申请号：US16302073

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Kijun KIM ,  Byounghoon KIM ,  Sangrim LEE

IPC: H04W74/08

Abstract: Provided are a method and an apparatus for competition-based transmitting of uplink data in a wireless communication system to which a non-orthogonal multiple access scheme is applied. Particularly, a terminal receives, from a base station, information relating to a predefined codeword for non-orthogonal multiple access. The predefined codeword includes a first spreading code and a second spreading code. The terminal configures a base layer using the first spreading code and configures an enhancement layer using the second spreading code. The terminal transmits a terminal identifier and data to the base station through a competition-based resource which overlappingly uses the base layer and the enhancement layer, wherein the terminal identifier is transmitted through the base layer and the data is transmitted through the enhancement layer.

公开(公告)号：US20190068274A1

公开(公告)日：2019-02-28

申请号：US15683092

申请日：2017-08-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/14 ,  H04W72/00 ,  H04W8/00

Abstract: Disclosed herein is a method of transmitting a signal at a relay user equipment (UE) in a wireless communication system. The method includes receiving uplink data for relay from a first UE, performing superposition coding with respect to the uplink data and sidelink data to be transmitted to a second UE through a sidelink to generate an uplink relay signal, and transmitting the uplink relay signal to a base station and the second UE.

公开(公告)号：US20180359122A1

公开(公告)日：2018-12-13

申请号：US15776738

申请日：2016-02-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2602 ,  H04L5/00 ,  H04L5/0044 ,  H04L27/26

Abstract: This method for a communication device to transmit/receive signals in a wireless communication system comprises the step of transmitting/receiving signals by using multiple subframes having a preset frame structure, wherein each of the multiple subframes comprises a downlink region and an uplink region, and with respect to the same region corresponding to the same frequency band in the preset frame structure, the downlink region and the uplink region may be allocated respectively to a first subframe and a second subframe among the multiple subframes.

公开(公告)号：US20180287685A1

公开(公告)日：2018-10-04

申请号：US15765883

申请日：2016-01-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B7/0456 ,  H04W52/24 ,  H04L27/26

Abstract: A method by which a terminal transmits feedback information in a wireless communication system can comprise the steps of: selecting a filter index for maximizing a signal to interference-plus-noise (SINR) or a signal to leakage-and-noise ratio (SLNR) in a filter book defined in advance for each resource block (RB) or subband; and transmitting, to a base station, feedback information including the selected filter index for each RB or subband.

公开(公告)号：US20180249452A1

公开(公告)日：2018-08-30

申请号：US15756017

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W72/12

Abstract: A method for a terminal to transmit signals on the basis of a non-orthogonal multiple access scheme in a wireless communication system may comprise the steps of: receiving, from a base station, information about a codebook selected for the terminal in pre-defined non-orthogonal codebooks and control information including information about a codeword selected from the selected codebook; performing resource mapping on uplink data to be transmitted on the basis of information about the selected codebook and information about the codeword selected from the selected codebook; transmitting, to the base station, the uplink data mapped to the resource according to the resource mapping.

公开(公告)号：US20180248662A1

公开(公告)日：2018-08-30

申请号：US15754474

申请日：2016-05-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04J11/00 ,  H04L5/14

CPC classification number: H04L5/0007 ,  H04J11/00 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0073 ,  H04L5/0094 ,  H04L5/143 ,  H04L5/1461 ,  H04L5/1469

Abstract: A method for a terminal performing communication using a flexible frequency division duplex (FDD) frame in a wireless communication system comprises the step of transmitting and receiving a signal using the flexible FDD frame, wherein the flexible FDD frame comprises a downlink band allocated from the wireless communication system as a resource for a downlink, and an uplink band allocated as a resource for an uplink, wherein the uplink band may comprise a downlink sub-band allocated as a resource for the downlink by a base station for the flexible FDD scheme.

公开(公告)号：US20180206250A1

公开(公告)日：2018-07-19

申请号：US15742014

申请日：2016-01-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12

CPC classification number: H04W72/121 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0062 ,  H04L5/0094 ,  H04L25/0226 ,  H04L25/0228 ,  H04W72/1273 ,  H04W72/1289

Abstract: A method by which a base station transmits terminal grouping information in a non-orthogonal multiple access scheme can comprise the steps of: grouping terminals sharing the same frequency resource on the basis of any one of a data transmission rate requested by each terminal, scheduling impartiality among the terminal, and a timing distance of each terminal; and allocating reference symbols for each grouped terminal group such that the reference symbols do not overlap for each terminal group in a time domain.