公开(公告)号：US20190090272A1

公开(公告)日：2019-03-21

申请号：US16082258

申请日：2017-03-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04W74/00

CPC classification number: H04W74/085 ,  H04L1/0068 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2678 ,  H04W72/0453 ,  H04W74/004

Abstract: A method by which a terminal transmits a random access channel (RACH) signal in a wireless communication system comprises the step of transmitting the RACH signal to a base station according to an RACH format corresponding to a specific RACH subframe among previously defined RACH formats, wherein the method is configured such that a start point or an end point of the RACH signal in a time domain is differentiated according to whether a downlink control zone and an uplink control zone within the RACH subframe are punctured in a specific frequency band between the previously defined RACH formats.

公开(公告)号：US20180248677A1

公开(公告)日：2018-08-30

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

CPC classification number: H04L5/1461 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0062 ,  H04L5/0085 ,  H04L5/0091 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/26 ,  H04L27/261

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：US20180205437A1

公开(公告)日：2018-07-19

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

CPC classification number: H04B7/0621 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/0639

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：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.