公开(公告)号：US10917188B2

公开(公告)日：2021-02-09

申请号：US15771638

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04J11/00 ,  H04W56/00 ,  H04B7/26 ,  H04L25/02 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04

Abstract: A method for a terminal performing communication using a TDD frame in a wireless communication system may comprises the steps of: receiving a first synchronization signal from the first symbol of a first subframe of a TDD frame; receiving a second synchronization signal from the first symbol of a second subframe of the TDD frame; and receiving system information from the first symbol of at least one subframe comprising a third subframe of the TDD frame.

公开(公告)号：US10790957B2

公开(公告)日：2020-09-29

申请号：US16307916

申请日：2017-01-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/16 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04

Abstract: A method for allocating resources by a Base Station (BS) in a wireless communication system is disclosed. The method includes configuring a Resource Block Group (RBG) dependent on whether a User Equipment (UE) operates in Full Duplex Radio (FDR) mode or Half Duplex (HD) mode, and allocating resources to the UE in units of the configured RBG. The RBG includes a plurality of Resource Blocks (RBs).

公开(公告)号：US10757740B2

公开(公告)日：2020-08-25

申请号：US16342793

申请日：2017-08-08

Applicant: LG Electronics Inc.

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

IPC: H04W74/08 ,  H04W74/00

Abstract: A method for performing, by a terminal, a contention-based uplink transmission in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: selecting any one of a plurality of codewords and any one of a plurality of demodulation reference signals (DMRS), the plurality of codewords and the plurality of DMRSs being set in a contention resource area for a contention-based uplink transmission; and transmitting, through the contention resource area, uplink data that corresponds to the selected codeword, and the selected DMRS, wherein the DMRS is transmitted in an orthogonal multiple access (OMA) scheme, the uplink data is transmitted in a non-orthogonal multiple access (NOMA) scheme, and the selected DMRS is one of the K DMRSs mapped to the selected codeword, wherein K may be an integer greater than or equal to 1, which is changed according to a DMRS collision occurring in the contention resource area.

公开(公告)号：US10484142B2

公开(公告)日：2019-11-19

申请号：US15748426

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/18 ,  H04L5/14 ,  H04W72/04 ,  H04L5/00 ,  H04L25/02

Abstract: A method for a terminal transmitting a hybrid automatic repeat request (HARQ) ACK/NACK feedback by using a terminal-specific TDD frame in a wireless communication system may comprise the steps of: receiving a downlink control channel from a corresponding subframe of the terminal-specific TDD frame; and transmitting a HARQ ACK/NACK for the downlink control channel from an uplink subframe that is the most adjacent to the corresponding subframe among subframes coming after at least four subframes from the corresponding subframe.

公开(公告)号：US10447505B2

公开(公告)日：2019-10-15

申请号：US15577656

申请日：2016-05-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/03 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04B7/0413 ,  H04L1/20 ,  H04L5/14

Abstract: A method for performing self-interference cancellation by a device using an FDR mode comprises a step for performing nonlinear digital self-interference cancellation on the basis of a condition defined for the nonlinear digital self-interference cancellation, wherein the defined condition can comprise information about the order of a self-interference component to be considered for the nonlinear digital self-interference cancellation in correspondence with transmission power of the device.

公开(公告)号：US10333570B2

公开(公告)日：2019-06-25

申请号：US15545667

申请日：2015-10-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04B1/12 ,  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 an ACK/NACK signal with respect to the transmission of the signal; and determining whether or not the stored residual self-interference signal is to be used thereafter on the basis of the ACK/NACK signal.

公开(公告)号：US10321458B2

公开(公告)日：2019-06-11

申请号：US15567686

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/00 ,  H04W72/04 ,  H04L27/26 ,  H04W28/08 ,  H04W28/26 ,  H04W16/14 ,  H04L5/00

Abstract: Provided are a method and an apparatus for allocating, by a first OFDM system and a second OFDM system, frequency resources, which are multiplexed in a frequency region, in a wireless communication system. Specifically, the sizes of the frequency resources of the first OFDM system, which corresponds to an existing OFDM, and the second OFDM system, which corresponds to a UF-OFDM, are determined. Adjacent subcarriers are instructed to allocate any one of a guard carrier and a subcarrier to which null data is allocated, while performing frequency resource allocation between the first and second OFDM systems in accordance with the determined sizes of the frequency resources. The information regarding the frequency resource allocation, which comprises information indicative of either the guard carrier or the subcarrier, is transmitted.

公开(公告)号：US10320541B2

公开(公告)日：2019-06-11

申请号：US15560404

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L25/02 ,  H04L25/03

Abstract: Provided is a transmission device for transmitting data in a wireless communication based on DFT-spread OFDM. Specifically, provided is a transmission device which outputs a first sub-band and a second sub-band by performing DFT on an input symbol with a tail part and a head part in which at least one 0 has been inserted by a DFT block controlled by a processor, outputs a signal by performing IDFT on the first sub-band which has been mapped by a first IDFT block, allows the signal to be filtered by a first band pass filter, outputs a signal by performing IDFT on the second sub-band which has been mapped by a second IDFT block, and allows the signal to be filtered by a second band pass filter.

公开(公告)号：US10291452B2

公开(公告)日：2019-05-14

申请号：US15563180

申请日：2016-01-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04J11/00 ,  H04L5/00

Abstract: A method for a base station processing in-band multiplexing using an FCP-OFDM scheme may comprise the steps of: transmitting, to a terminal, information on the length of zero padding (ZP) for a receiving side and the length of ZP for a transmitting side in a band for a first service among one or more services provided in one carrier; and on the basis of the information on the length of ZP for a receiving side and the length of ZP for a transmitting side, processing a signal of the first service in the transmitting end or receiving end of the base station.

公开(公告)号：US10225109B2

公开(公告)日：2019-03-05

申请号：US15249119

申请日：2016-08-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/02 ,  H04L5/00 ,  H04L5/14

Abstract: A method for transmitting information related to a sounding reference signal (SRS) transmission by a base station (BS) of a full duplex radio (FDR) mode in a wireless communication system includes: transmitting information related to a resource region to be used for the SRS transmission to a user equipment of the FDR mode within a resource region configured as an uplink (UL) idle interval; receiving a SRS through the resource region for the SRS transmission from the user equipment; performing an uplink (UL) channel estimation based on the received SRS; and performing a downlink (DL) channel estimation by applying a channel reciprocity characteristic to a result of the uplink (UL) channel estimation.