公开(公告)号：US10659127B2

公开(公告)日：2020-05-19

申请号：US16099403

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Jiwon Kang ,  Kitae Kim ,  Kilbom Lee ,  Heejin Kim ,  Kyuseok Kim

IPC: H04B7/06 ,  H04B7/08

Abstract: The present invention relates to a wireless access system supporting millimeter wave (mmWave), and provides a transmission/reception beam scanning method, a channel state information feedback method, and devices supporting the same. According to an embodiment of the present invention, a method for scanning a transmission/reception beam by a millimeter wave (mmWave) terminal in a wireless access system supporting mmWave may comprise the steps of: performing long term beam scanning in period N; transmitting feedback information including a first transmission beam identifier (Tx beam ID) acquired through the long term beam scanning to a mmWave base station; receiving an upper layer signal including reception beam scanning configuration information allocated for short term beam scanning; and performing the short term beam scanning in a reception beam scanning area on the basis of the reception beam scanning configuration information.

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：US10411869B2

公开(公告)日：2019-09-10

申请号：US15520737

申请日：2015-04-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04 ,  H04L5/14 ,  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, a method for transmitting downlink data in a wireless communication system comprises transmitting, by an eNB, first downlink data through a physical downlink shared channel (PDSCH) region according to a radio frame structure based on a first transmission time interval (TTI); and transmitting, by the eNB, second downlink data through a short PDSCH (sPDSCH) region according to a radio frame structure based on a second TTI, wherein downlink control information (DCI) related to the second downlink data is transmitted through a physical downlink control channel (PDCCH) or a short PDCCH (sPDCCH).

公开(公告)号：US10382185B2

公开(公告)日：2019-08-13

申请号：US15107426

申请日：2014-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jaehoon Chung ,  Jinmin Kim ,  Kukheon Choi ,  Kwangseok Noh

IPC: H04L1/00 ,  H04L5/14 ,  H04W52/14 ,  H04W52/24 ,  H04W72/08 ,  H04W72/04 ,  H04L5/00 ,  H04B1/525 ,  H04L25/02 ,  H04W88/02 ,  H04W88/08

Abstract: Disclosed are a method and a base station for mitigating self-interference in which, in a resource region for transmitting a plurality of downlink control channels, an overlap region is configured, the overlap region being a resource region from which the effects of self-interference due to an uplink communication of a terminal must be removed, and the information regarding the overlap region is transmitted to a terminal connected to a base station and communicating via FDR.

公开(公告)号：US10374682B2

公开(公告)日：2019-08-06

申请号：US15304393

申请日：2014-04-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04B7/06 ,  H04B15/02 ,  H04B1/56 ,  H04L5/14 ,  H04B1/54

Abstract: The present invention provides a method for removing a self-interference in a wireless access system supporting a full duplex radio (FDR) scheme, and devices for supporting the same. A method by which a transmission end removes self-interference in a wireless access system supporting an FDR scheme, according to one embodiment of the present invention, can comprise the steps of: transmitting two transmission signals by using two transmission antennas; receiving two reception signals by using two reception antennas; estimating a self-interference channel; and removing interference signals by considering the self-interference channel estimated from the reception signals. Here, the interference signals are the transmission signals which are inputted to the two reception antennas, the transmission signals and the reception signals are simultaneously transmitted and received through a resource region comprising the same time and frequency, and the two transmission antennas and the two reception antennas can be disposed on the transmission end in a diamond shape.

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：US10122488B2

公开(公告)日：2018-11-06

申请号：US15110226

申请日：2014-10-16

Applicant: LG Electronics Inc.

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

IPC: H04J11/00 ,  H04B7/26 ,  H04W72/04 ,  H04H20/38 ,  H04L5/14 ,  H04L29/06

Abstract: Disclosed in the present application is a method for transreceiving signals between a base station and user equipment in wireless communication system. Specifically, the method comprises a step of transreceiving the signals with the base station, in units of a wireless frame comprising at least one user equipment-shared time resource interval and at least one user equipment-specific time resource interval, wherein the at least one user equipment-specific time resource interval is a time resource interval for transreceiving data between the base station and the user equipment, and wherein the at least one user equipment-shared time resource interval is a time resource interval for transreceiving signals for measuring interference.

公开(公告)号：US10020975B2

公开(公告)日：2018-07-10

申请号：US15500733

申请日：2015-08-18

Applicant: LG Electronics, Inc.

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

IPC: H03K9/00 ,  H04L27/38 ,  H04B7/0413 ,  H04L27/06

CPC classification number: H04L27/38 ,  H04B7/0413 ,  H04L5/0026 ,  H04L5/0048 ,  H04L27/0008 ,  H04L27/06 ,  H04L27/3433 ,  H04L27/3845

Abstract: A method by which a terminal demodulates a signal in a wireless access system according to one embodiment of the present invention comprises the steps of: receiving a modulation signal having a modulation order of 2m (m is a natural number); determining a first demodulation constellation arrangement corresponding to a kth (k is an even number among natural numbers of m or less) bit among m numbers of bits; determining a second demodulation constellation arrangement corresponding to an nth (n is an odd number among natural numbers of m or less) bit among the m numbers of bits; and demodulating the received modulation signal by using the first and second demodulation constellation arrangements, wherein the first constellation arrangement can have a pattern in which a square matrix having a size of 2(m/2+1)−(k/2) is repeated.