公开(公告)号：US10333581B2

公开(公告)日：2019-06-25

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 ,  H04L5/00 ,  H04L5/14 ,  H04L27/26 ,  H04B1/04

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.

公开(公告)号：US10326483B2

公开(公告)日：2019-06-18

申请号：US15545515

申请日：2015-10-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04B1/44 ,  H04B1/12 ,  H04B15/02 ,  H04B1/525 ,  H04B7/08 ,  H04L5/14 ,  H04B17/14 ,  H04B1/56 ,  H04L5/00 ,  H04B17/345

Abstract: A method for removing a self-interference signal by a device supporting an FDR mode can further comprise the steps of: transmitting a signal to a counterpart node in a predetermined time interval; generating, in an RF stage of the device, a residual self-interference signal after removal of an analog self-interference signal with respect to the signal and then storing same; and receiving from the counterpart node a NACK signal with respect to the transmission of the signal; retransmitting the signal to the counterpart node; and, if decoding of the signal which has been received in the predetermined time interval is successful, using only a part of the stored residual self-interference signal when removing a digital self-interference signal on the basis of the retransmission.

公开(公告)号：US10200100B2

公开(公告)日：2019-02-05

申请号：US15516571

申请日：2015-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jiwon Kang ,  Kilbom Lee ,  Heejin Kim ,  Dongkyu Kim

IPC: H04B7/06

Abstract: A method by which a base station receives feedback information on beamforming in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting an omni-directional beam formed uniformly in all directions, on the basis of a non-precoded first signal; transmitting a plurality of directional beams through a plurality of antenna ports on the basis of second signals precoded in different directions; and receiving feedback information from a terminal, wherein the feedback information includes a gain difference between a first directional beam among the plurality of directional beams and the omni-directional beam, and an index of a first antenna port used in transmitting the first directional beam among the plurality of antenna ports.

公开(公告)号：US20180287739A1

公开(公告)日：2018-10-04

申请号：US15937115

申请日：2018-03-27

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Woochan Kim ,  Sangrim Lee ,  Hojae Lee

IPC: H04L1/00 ,  H04L5/14 ,  H04L5/00 ,  H04J11/00

Abstract: A method for a base station processing an in-band emission interference signal caused when the base station operating in a Full Duplex Radio (FDR) mode transceives signals using a Frequency Division Multiplexing (FDM) manner includes transmitting a downlink signal in a flexible downlink duration of an uplink band; and processing the in-band emission interference signal caused by transmission of the downlink signal in an uplink duration of the uplink band, wherein the processing of the in-band emission interference signal is performed by puncturing a corresponding resource of the uplink duration, wherein the resource on the downlink signal is transmitted is mirrored to the corresponding resource of the uplink duration from a Direct Current (DC) subcarrier as a reference.

公开(公告)号：US20180254926A1

公开(公告)日：2018-09-06

申请号：US15755413

申请日：2016-05-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/03 ,  H04L27/26

CPC classification number: H04L25/0328 ,  H04B1/525 ,  H04L5/1461 ,  H04L25/0224 ,  H04L25/03821 ,  H04L27/2691 ,  H04W72/082

Abstract: A method for cancelling self-interference by a base station that uses a full duplex radio (FDR) scheme may comprise the steps of: transmitting, to a terminal, information associated with reference signal (RS) power boosting, which has been changed for estimation of a self-interference channel; transmitting an RS on the basis of the changed RS power boosting; estimating the self-interference channel according to the RS; and cancelling the self-interference on the basis of the estimation of the self-interference channel.

公开(公告)号：US11968641B2

公开(公告)日：2024-04-23

申请号：US17430193

申请日：2019-12-31

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Sukhyon Yoon ,  Hyunsoo Ko

IPC: H04W56/00 ,  H04B17/336 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W56/005 ,  H04B17/336 ,  H04L5/0051 ,  H04W24/10 ,  H04W56/001

Abstract: A method by which a transmission user equipment (UE) transmits a sounding reference signal (SRS) in a wireless communication system, according to the present disclosure, can comprise the steps of: receiving, from a base station, first configuration information including a timing advance and/or a timing advance offset; receiving, from the base station, second configuration information including SRS configuration; and transmitting an SRS to a reception UE on the basis of the first configuration information and the second configuration information. The timing advance is the same as the downlink reception timing of the reception UE, and the timing advance offset can be set to transmit the SRS. The timing advance can have a value corresponding to the downlink reception timing of the reception UE.

公开(公告)号：US11962356B2

公开(公告)日：2024-04-16

申请号：US17714610

申请日：2022-04-06

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Yunjung Yi

IPC: H04B15/00 ,  H04B17/345 ,  H04B17/354

CPC classification number: H04B15/00 ,  H04B17/345

Abstract: A method for a transmission and reception point (TRP) for controlling cross-link interference comprises the steps of: determining a timing advance (TA) value, for measuring or eliminating cross-link interference, in a set subframe if a section in which cross-link interferences occur between the TRP and one or more adjacent TRPs is configured; and transmitting the determined TA value in the set subframe to a terminal, wherein the section in which cross-link interference occurs can correspond to a section that is configured as an uplink section for the TRP, and as a downlink transmission section for the one or more adjacent TRPs.

公开(公告)号：US11233587B2

公开(公告)日：2022-01-25

申请号：US16763002

申请日：2017-11-14

Applicant: LG Electronics Inc.

Inventor： Dongkyu Kim ,  Sangrim Lee

IPC: H04B17/24 ,  H04B17/345

Abstract: A method for a terminal to receive information for measuring self-interference may comprise: a step of receiving, from a base station, RS configuration information including information on an RS for measuring self-interference; a step of measuring self-interference on the basis of the RS configuration information by using the RS for measuring self-interference; and a step of reporting, to the base station, information on the measurement result of the self-interference. 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：US11190307B2

公开(公告)日：2021-11-30

申请号：US16096658

申请日：2016-04-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W52/04

Abstract: There is provided a method for receiving, by a user equipment, data using a 2-dimensional (2-D) channel-based transmission scheme, the method comprising: receiving information about allocation of a resource from a base station, wherein the 2D channel-based transmission scheme is applied to the resource; and receiving data on the resource according to the 2D channel-based transmission scheme and based on the resource allocation information.

公开(公告)号：US11178665B2

公开(公告)日：2021-11-16

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 ,  H04L29/08

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.