公开(公告)号：US20210289546A1

公开(公告)日：2021-09-16

申请号：US16334619

申请日：2017-07-27

Applicant: LG Electronics Inc.

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

IPC: H04W74/08 ,  H04L5/00

Abstract: Provided are a method and a device for performing communication using a non-orthogonal code multiple access scheme in a wireless communication system. Specifically, a terminal divides a terminal identifier into a first field, a second field, a third field and a fourth field and selects a first reference signal, a second reference signal, a third reference signal and a fourth reference signal. On the basis of the first reference signal, the second reference signal, the third reference signal or the fourth reference signal, the terminal transmits contention-based data to a base station. The first reference signal is selected on the basis of the first field and the maximum number of reference signals. The second reference signal is selected on the basis of the second field and the maximum number of reference signals. The third reference signal is selected on the basis of the third field and the maximum number of reference signals. The fourth reference signal is selected on the basis of the second field and the maximum number of reference signals.

公开(公告)号：US20200212973A1

公开(公告)日：2020-07-02

申请号：US16622857

申请日：2018-06-07

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Sangrim LEE

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

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：US20200084769A1

公开(公告)日：2020-03-12

申请号：US16681311

申请日：2019-11-12

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method for transmitting feedback information by a first user equipment (UE) in a wireless communication system supporting a full duplex radio (FDR) scheme includes measuring, based on information on a second UE received from a base station (BS), an inter-device interference (IDI) related to the second UE; and transmitting, to the BS, feedback information related to the IDI.

公开(公告)号：US20200008220A1

公开(公告)日：2020-01-02

申请号：US16480983

申请日：2018-02-05

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Hojae LEE

IPC: H04W72/12 ,  H04W72/14 ,  H04L5/00 ,  H04L1/08

Abstract: A method for transmitting, by a terminal, an uplink signal in a wireless communication system according to one embodiment of the present disclosure comprises the steps of: receiving, from a base station, scheduling request (SR) resource information and data resource information; transmitting an SR through any one of a UE-wise SR resource and a group-wise SR resource allocated through the SR resource information; and repeatedly transmitting uplink data through a plurality of resource areas allocated through the data resource information, wherein one UE-wise SR resource may be allocated to each first resource area set consisting of N resource areas, and at least one group-wise SR resource may be allocated to each resource area. 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：US20190342061A1

公开(公告)日：2019-11-07

申请号：US16319806

申请日：2017-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Eunsun KIM ,  Hyunsoo KO ,  Kijun KIM ,  Yunjung YI ,  Hanbyul SEO ,  Suckchel YANG ,  Hojae LEE

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/04 ,  H04W52/36 ,  H04W72/14

Abstract: A user equipment (UE) receives UE group information indicating a first UE group to which the UE belongs, and transmits uplink (UL) data and a demodulation reference signal (DM-RS), which is for demodulating the UL data, on the basis of the UE group information. The DM-RS is transmitted by means of a first uplink demodulation reference signal (UL DM-RS) resource, which corresponds to the first UE group to which the UE belongs, among a plurality of UL DM-RS resources respectively corresponding to one or more UE groups.

公开(公告)号：US20190124681A1

公开(公告)日：2019-04-25

申请号：US16095113

申请日：2017-04-12

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method for user equipment to perform uplink communication in a wireless communication system comprises a step of performing communication using a codebook corresponding to a selected modulation method, wherein the codebook may be a codebook defined for communication based on non-orthogonal coded multiple access (NCMA).

公开(公告)号：US20190058572A1

公开(公告)日：2019-02-21

申请号：US15770685

申请日：2016-07-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/14 ,  H04L5/00 ,  H04L27/26

Abstract: This method for a communication device to transmit/receive signals by using a TDD scheme in a wireless communication system may comprise the steps of: receiving information related to a guard period (GP) position in a data zone of a particular subframe; receiving downlink data in the data zone of the particular subframe on the basis of the information related to the GP position; and transmitting uplink data in the data zone of the particular subframe on the basis of the information related to the GP position.

公开(公告)号：US20180352540A1

公开(公告)日：2018-12-06

申请号：US15777635

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Hojae LEE ,  Kijun KIM

IPC: H04W72/04 ,  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：US20180152329A1

公开(公告)日：2018-05-31

申请号：US15578135

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/03 ,  H04L27/26

CPC classification number: H04L25/03821 ,  H04B3/32 ,  H04J11/0063 ,  H04L25/02 ,  H04L25/03 ,  H04L25/0328 ,  H04L25/03305 ,  H04L27/261 ,  H04L27/2691

Abstract: A method for performing self-interference cancellation by a communication device which uses an FDR mode can comprise the steps of: measuring the strength of a residual self-interference signal, after antenna and analog self-interference cancellation, for each subband with respect to a predetermined number of subbands configured in a communication device; determining the order of a nonlinear self-interference signal component, to be considered for channel estimation of a nonlinear self-interference signal, for each subband on the basis of the strength of the residual self-interference signal that has been measured for each subband; and performing channel estimation of the nonlinear self-interference signal on the basis of the order that has been determined for each subband.

公开(公告)号：US20180048347A1

公开(公告)日：2018-02-15

申请号：US15555933

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04B1/525 ,  H04L25/02

CPC classification number: H04B1/525 ,  H04B1/0475 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0082 ,  H04L5/14 ,  H04L5/1461 ,  H04L25/0202 ,  H04L25/0226 ,  H04L27/261

Abstract: A method for a FDR scheme-using communication device transmitting reference signals for estimating a channel of a non-linear self-interference signal comprises the step of transmitting, on a specific symbol of a corresponding subframe, reference signals for estimating the channel of the non-linear self-interference signal, wherein a sequence mapped to the reference signals is a sequence generated in a frequency domain by being discrete Fourier transform (DFT)-converted, and the generated sequence may be mapped, on the frequency domain, to a RE for the reference signals.