公开(公告)号：US10567150B2

公开(公告)日：2020-02-18

申请号：US15755045

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/14 ,  H04L5/00

Abstract: A method for a device changing a RS mode, the device operating by a FDR scheme, comprises the steps of: deciding to change from a first RS mode to a second RS mode if a preset condition is satisfied; and transmitting information related to the decided second RS mode to a terminal, wherein the first RS mode and the second RS mode may be distinguished from each other by whether RSs which are added in order to channel estimate a non-linear component of a self-interference signal are transmitted or not.

公开(公告)号：US10461980B2

公开(公告)日：2019-10-29

申请号：US15563485

申请日：2015-10-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26

Abstract: A method for a receiving side processing a signal in a wireless communication system according to the present invention may comprise the steps of: receiving, from a transmitting side, information for the length, in a band where the receiving side is allocated, of a band pass filter to be applied to a transmission signal of the transmitting side and the length of the greatest band pass filter applied to a time interval identical to the transmission signal; and on the basis of the information for the length of a band pass filter to be applied to a transmission signal of the transmitting side and the length of the greatest band pass filter applied to a time interval identical to the transmission signal, setting an N Fast Fourier Transform (FFT) window starting point for detecting the transmission signal.

公开(公告)号：US10454634B2

公开(公告)日：2019-10-22

申请号：US15559223

申请日：2015-10-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/12 ,  H04L27/26

Abstract: A method for a base station to allocate resources for supporting a plurality of wireless communication modes in a wireless system according to the present invention comprises the steps of: allocating, using frequency-division multiplexing, a first zone composed of orthogonal frequency division multiplexing (OFDM) symbols and a second zone composed of generalized frequency division multiplexing (GFDM) symbols on time and frequency domains; and allocating a predetermined number of guard subcarriers to the boundary between the first zone and the second zone, wherein the predetermined number is determined on the basis of the number of sub-symbols of the GFDM symbols of the second zone.

公开(公告)号：US10432324B2

公开(公告)日：2019-10-01

申请号：US15566655

申请日：2016-01-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/005 ,  H04B15/00 ,  H04L27/26 ,  H04L5/14 ,  H04B1/12 ,  H04B1/525 ,  H04L5/00

Abstract: A method for performing self-interference removal by a communication device using a full-duplex radio (FDR) mode, according to an embodiment of the present invention, comprises a step for branching a residual self-interference signal, after removal of an antenna self-interference signal, into a plurality of reception RF chains. And the present invention enables determining of whether or not digital self-interference removal is to be performed after combining the plurality of self-interference signals, which have been branched, on the basis of a predefined threshold and strength of each of the plurality of self-interference signals that have been branched.

公开(公告)号：US10367629B2

公开(公告)日：2019-07-30

申请号：US15543950

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/14 ,  H04L27/26 ,  H04B15/00 ,  H04L25/02 ,  H04W84/04

Abstract: A method for estimating, by a device using an FDR scheme, a non-linear self-interference signal channel comprises a step of estimating a non-linear self-interference signal channel using a first sequence set included in a predefined first sequence set, wherein the predefined first sequence set is defined in consideration of non-linear self-interference signal components in an RF transmission chain and an RF reception chain of the device.

公开(公告)号：US10361836B2

公开(公告)日：2019-07-23

申请号：US15520687

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Jaehoon Chung ,  Genebeck Hahn ,  Jinmin Kim ,  Kukheon Choi ,  Kwangseok Noh ,  Sangrim Lee

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04W72/12 ,  H04L1/00 ,  H04W52/34

Abstract: A method for transmitting and receiving data in a wireless communication system and an apparatus for the method are disclosed. More specifically, The present invention provides a method for transmitting downlink data in a wireless communication system can comprise mapping, by a eNB, first downlink data into a physical downlink shared channel (PDSCH) region according to a radio frame structure based on a first transmission time interval (TTI), mapping, by the eNB, second downlink data to a short PDSCH (sPDSCH) region according to a radio frame structure based on a second TTI, and transmitting, by the eNB, the first and the second downlink data.

公开(公告)号：US10356754B2

公开(公告)日：2019-07-16

申请号：US15555010

申请日：2016-04-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04W4/70 ,  H04J11/00 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04

Abstract: A method for supporting a sporadic high-capacity packet service by a terminal may comprise the steps of: receiving, from a base station, control information including pre-defined timing information for synchronization and resource allocation information associated with the terminal; when uplink traffic occurs, performing transmission synchronization on the basis of the pre-defined timing information for synchronization; selecting a resource for uplink data transmission on the basis of the resource allocation information; and transmitting uplink data through the selected resource.

公开(公告)号：US10333637B2

公开(公告)日：2019-06-25

申请号：US15566683

申请日：2015-11-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04B17/345 ,  H04L1/00 ,  H04L5/14 ,  H04B17/10 ,  H04B17/21 ,  H04B17/24

Abstract: A method for stably operating an FDR mode by a terminal in a wireless communication system supporting the full-duplex radio (FDR) mode comprises the steps of: if a residual self-interference signal is changed to a predetermined threshold or higher in a terminal, transmitting information about the changed residual self-interference signal to a base station; and receiving from the base station a downlink signal on the basis of a modulation and coding scheme (MCS) level that corresponds to the information about the changed residual self-interference signal.

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.