公开(公告)号：US10892859B2

公开(公告)日：2021-01-12

申请号：US16475776

申请日：2017-01-04

Applicant: LG Electronics Inc.

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

IPC: H04L1/18 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04

Abstract: A method in which a terminal performs a HARQ operation in a NoMA-based system comprises a step of receiving a downlink control information (dci) format comprising a multiple access (MA) signature field for supporting NoMA transmission; a step of receiving downlink data based on a value of the MA signature indicated by the MA signature field; and a step of transmitting an ACK/NACK signal with respect to the downlink data based on a subframe offset value, a frequency offset value, or a sequence index value, which are tied with the indicated value of the MA signature according to a predefined rule, wherein the subframe offset value comprises the subframe offset value between a reception subframe of the downlink data and a downlink HARQ feedback transmission subframe with respect to the downlink data, and wherein the frequency offset value indicates a frequency band used for transmitting the ACK/NACK signal.

公开(公告)号：US10756932B2

公开(公告)日：2020-08-25

申请号：US16327240

申请日：2017-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Kijun Kim ,  Eunsun Kim ,  Sangrim Lee

IPC: H04L25/03 ,  H04L25/02 ,  H04W72/04 ,  H04W74/08

Abstract: Provided is a non-orthogonal multiple access method, which: randomly selects a physical resource for performing non-orthogonal multiple access among the contention-based data transmission areas defined in advance; selects a reference signal sequence for a contention-based data transmission through the selected physical resource; selects a contention resource for the contention-based data transmission; selects a scrambling sequence to be applied to data transmission in the contention-based data transmission; and transmitting a data channel including data and a reference signal corresponding to the selected reference signal sequence through the selected physical resource, wherein the data channel is transmitted by allowing the selected scrambling sequence to be applied thereto.

公开(公告)号：US10736134B2

公开(公告)日：2020-08-04

申请号：US16095113

申请日：2017-04-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04L12/28 ,  H04W72/14 ,  H04L1/00 ,  H04L1/18 ,  H04B7/0456 ,  H04L27/26 ,  H04L5/00

Abstract: Techniques for a user equipment to perform uplink communication in a wireless communication system. The user equipment performs operations that include: receiving configuration information for a codebook set related with a modulation scheme; receiving a UL grant including a specific codeword index; selecting a codebook based on the specific codeword index included in the codebook set; and transmitting data based on the selected codebook, wherein the codebook set includes a plurality of codebooks predefined for non-orthogonal coded multiple access (NCMA) scheme based communication, and wherein the codebook set is configured based on a spreading factor or an overloading factor.

公开(公告)号：US20200236505A1

公开(公告)日：2020-07-23

申请号：US16650172

申请日：2018-09-28

Applicant: LG Electronics Inc.

Inventor： Woonghee Lee ,  Sangrim Lee ,  Hojae Lee

IPC: H04W4/029 ,  H04W28/04 ,  G01S13/08

Abstract: The present invention provides a method for reducing a wireless positioning error by a target node in a multi-node system. Specifically, the method comprises the steps of: receiving information on the positions of anchor nodes from the anchor nodes, respectively; performing ranging of each of the anchor nodes; and when the target node is in a first state, transmitting information on the position of the target node to neighboring nodes except for each of the anchor nodes. The target node is capable of communicating with at least one of another target node, a target node related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US10667243B2

公开(公告)日：2020-05-26

申请号：US15777635

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee ,  Kijun Kim

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00

Abstract: This method for a transmitting side to transmit reference signals in a wireless communication system may comprise the step of: generating first reference signals for the demodulation of control channels and second reference signals for the demodulation of data channels; overlapping mapping the first and second reference signals to resources to which the control channels have been allocated in a predefined subframe; and transmitting the first and second reference signals mapped to the resources to which the control channels have been allocated.

公开(公告)号：US10595325B2

公开(公告)日：2020-03-17

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: H04W72/10 ,  H04W72/12 ,  H04L5/00 ,  H04L25/02

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.

公开(公告)号：US10554361B2

公开(公告)日：2020-02-04

申请号：US15566682

申请日：2015-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Hyunsoo Ko ,  Kwangseok Noh ,  Sangrim Lee ,  Hojae Lee

IPC: H04L5/00 ,  H04L5/14

Abstract: A method for changing reference signal (RS) allocation by a device operating in an FDR scheme may comprise the steps of: determining whether to release an additionally allocated RS according to a transmission power variation of the device or to additionally allocate an RS for channel estimation of a non-linear component of a self-interference signal; and transmitting information on a resource of the RS to be released or information on a resource of the RS to be additionally allocated, according to the determination.

公开(公告)号：US20200015218A1

公开(公告)日：2020-01-09

申请号：US16491013

申请日：2017-03-07

Applicant: LG Electronics Inc.

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

IPC: H04W72/04 ,  H04W72/12

Abstract: A method for performing non-orthogonal multiple access (NOMA) scheme-based communication by a base station may comprise the steps of: determining at least one transmission data resource group on the basis of a scheduling request (SR) reception reliability; transmitting information on the determined at least one data resource group to a terminal; and receiving uplink data from the terminal via a predefined uplink data transmission area in the at least one data resource group, wherein the at least one data resource group and an SR resource group including an SR transmission area, in which an SR can be transmitted, are overlappingly allocated in a physical resource area, and the predefined uplink data transmission area within the at least one data resource group and the SR transmission area of the SR resource group overlap each other in the physical resource area.

公开(公告)号：US10477542B2

公开(公告)日：2019-11-12

申请号：US15572625

申请日：2015-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok Noh ,  Dongkyu Kim ,  Hyunsoo Ko ,  Kukheon Choi ,  Sangrim Lee ,  Hojae Lee

IPC: H04W72/04 ,  H04L5/14 ,  H04W72/08 ,  H04W72/12 ,  H04L5/00

Abstract: A method for allocating, by a base station, resources in a wireless communication system supporting a full duplex radio (FDR) technology, according to the present invention, may comprise the steps of: receiving, from a first terminal, a buffer status report (BSR) including an indicator which indicates the urgency of uplink data transmission; and determining, on the basis of the indicator, whether to allocate an uplink sub-frame for the first terminal in a situation where a downlink sub-frame is allocated to a second terminal during a specific time interval.

公开(公告)号：US10201001B2

公开(公告)日：2019-02-05

申请号：US15578512

申请日：2016-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Hyunsoo Ko ,  Kwangseok Noh ,  Sangrim Lee ,  Hojae Lee

IPC: H04B7/00 ,  H04W72/08 ,  H04L25/02 ,  H04L25/03 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04B1/525

Abstract: A method for transmitting reference signal (RS) allocation mode information by a device operating in a full duplex radio (FDR) mode comprises the steps of: determining to change an RS allocation mode from a first RS allocation mode to a second RS allocation mode for nonlinear component estimation of a residual self-interference signal after antenna and analog self-interference cancellation; and transmitting information about the changed second RS allocation mode to a counterpart node, wherein the first RS allocation mode and second RS allocation mode are distinguished from each other on the basis of whether or not RSs, used for nonlinear component estimation of the residual self-interference signal, are additionally transmitted.