公开(公告)号：US20180167239A1

公开(公告)日：2018-06-14

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 ,  H04L5/14 ,  H04L1/20 ,  H04B7/0413

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：US20180160432A1

公开(公告)日：2018-06-07

申请号：US15578512

申请日：2016-01-26

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04W72/082 ,  H04B1/525 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0094 ,  H04L5/14 ,  H04L25/02 ,  H04L25/03 ,  H04W72/044

Abstract: A method for transmitting reference signal (RS) allocation mode information by a device operating in a full duplex radio (FDR) mode comprises the steps of: determining to change an RS allocation mode from a first RS allocation mode to a second RS allocation mode for nonlinear component estimation of a residual self-interference signal after antenna and analog self-interference cancellation; and transmitting information about the changed second RS allocation mode to a counterpart node, wherein the first RS allocation mode and second RS allocation mode are distinguished from each other on the basis of whether or not RSs, used for nonlinear component estimation of the residual self-interference signal, are additionally transmitted.

公开(公告)号：US20180091346A1

公开(公告)日：2018-03-29

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

CPC classification number: H04L27/265 ,  H04L27/2605 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2665

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：US20180083717A1

公开(公告)日：2018-03-22

申请号：US15559256

申请日：2016-03-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04B15/02 ,  H04B1/54 ,  H04W52/04

CPC classification number: H04B15/02 ,  H04B1/525 ,  H04B1/54 ,  H04W52/04

Abstract: An apparatus for removing self-interference in an environment supporting an FDR method according to the present invention may comprise: an analogue self-interference removal unit that is constructed to remove a first analogue self-interference by subtracting a self-interference signal received through a first delay circuit connected between an RF transmission chain and an RF reception chain of the apparatus from a self-interference signal received at a first circuit of the RF reception chain of the apparatus, and that is constructed to remove a second analogue self-interference by subtracting a self-interference signal received through a second delay circuit connected between the RF transmission chain and the RF reception chain of the apparatus from a self-interference signal received at a second circuit of the RF reception chain of the apparatus; and a processor that is constructed to determine whether the first and the second analogue self-interference removals were respectively successful on the basis of the respective residual self-interference signals that are left after removing the first and the second analogue self-interferences.

公开(公告)号：US20180042045A1

公开(公告)日：2018-02-08

申请号：US15555058

申请日：2015-03-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/02 ,  H04W16/14 ,  H04W74/08

CPC classification number: H04W74/02 ,  H04B7/063 ,  H04B7/0695 ,  H04W16/14 ,  H04W16/28 ,  H04W48/16 ,  H04W74/08 ,  H04W88/10

Abstract: The present invention relates to methods for determining whether to perform millimeter wave (mmWave) scanning in a mmWave system, and a device supporting same. The method for a terminal performing mmWave scanning in a wireless access system supporting mmWave technology, according to one embodiment of the present invention, comprises the steps of: attempting to detect a mmWave pilot signal by monitoring a mmWave pilot detection window in a mmWave band; and transmitting, to an uplink of a legacy band, a feedback signal for indicating whether the mmWave pilot signal is detected, wherein the method may further comprise the step of, if the mmWave pilot signal is detected, performing mmWave ray scanning with a base station, or the step of, if the mmWave pilot signal is not detected, determining whether to perform mmWave beam scanning or whether to perform legacy communication.

公开(公告)号：US20180041988A1

公开(公告)日：2018-02-08

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: H04W72/02 ,  H04W72/04 ,  H04W56/00

CPC classification number: H04W72/02 ,  H04J11/0036 ,  H04L1/0001 ,  H04L1/1854 ,  H04L5/0014 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0069 ,  H04L5/008 ,  H04L5/0091 ,  H04W4/70 ,  H04W56/00 ,  H04W56/001 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446

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：US20180019775A1

公开(公告)日：2018-01-18

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 ,  H04L5/14 ,  H04L5/00

CPC classification number: H04B1/12 ,  H04B1/525 ,  H04B1/56 ,  H04B7/0857 ,  H04B15/02 ,  H04B17/14 ,  H04B17/345 ,  H04L1/00 ,  H04L1/12 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/14 ,  H04L5/1461

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：US20170279464A1

公开(公告)日：2017-09-28

申请号：US15466355

申请日：2017-03-22

Applicant: LG ELECTRONICS INC.

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

IPC: H03M13/25 ,  H03M13/09 ,  H03M13/11

CPC classification number: H03M13/09 ,  H03M13/116 ,  H03M13/2906 ,  H03M13/353 ,  H03M13/6525

Abstract: A method of low-density parity check (LDPC) code encoding and an apparatus therefor are disclosed. The LDPC code encoding method includes determining whether code block cyclic redundancy check (CRC) is attached to a code block based on a channel state or a required error rate. Signal overhead is reduced via selective application of the code block CRC.

公开(公告)号：US20170223538A1

公开(公告)日：2017-08-03

申请号：US15501791

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Genebeck HAHN ,  Jaehoon CHUNG ,  Eunjong LEE ,  Jinmin KIM ,  Kukheon CHOI ,  Kwangseok NOH

IPC: H04W12/06 ,  H04W76/02 ,  H04W12/04

CPC classification number: H04W12/06 ,  H04W8/20 ,  H04W12/04 ,  H04W60/00 ,  H04W76/10

Abstract: A method for performing authentication by a base station with a terminal in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: receiving from a terminal a radio resource control (RRC) connection setup request message; determining, on the basis of the RRC connection setup request message, whether or not the terminal requested fast authentication; if the terminal requested fast authentication, transmitting an international mobile subscriber identity (IMSI) of the terminal to a mobility management entity (MME) before the RRC connection setup of the terminal is complete; and authenticating the terminal on the basis of the control of the MME, wherein, in the step for authenticating the terminal, non-access stratum (NAS) security setup and access stratum (AS) security key setup of the terminal are simultaneously performed.

公开(公告)号：US20170126379A1

公开(公告)日：2017-05-04

申请号：US15318487

申请日：2015-06-30

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon CHOI ,  Jaehoon CHUNG ,  Genebeck HAHN ,  Eunjong LEE ,  Jinmin KIM ,  Kwangseok NOH

IPC: H04L5/00 ,  H04W4/00

CPC classification number: H04L5/0048 ,  H04L1/00 ,  H04L1/0026 ,  H04L5/00 ,  H04L5/0057 ,  H04W4/80

Abstract: The present invention provides a method for defining, and for transmitting, a new uplink reference signal and devices supporting the method. In one embodiment of the present invention, a method in which a terminal transmits a millimetre wave reference signal (mW-RS) in a millimetre-wave (mmWave)-supporting wireless access system comprises the steps of: receiving a downlink reference signal in a predetermined number of sub-frames, and measuring two or more received power levels; determining whether to transmit an mW-RS, based on the value(s) of the difference(s) between the two or more received power levels; and transmitting the mW-RS if it has been decided to transmit an mW-RS. Here, the mW-RS is transmitted in order to measure whether the state of a wireless channel has transitioned between an LoS (Light of Sight) state and a NLoS (Non-LoS) state.