公开(公告)号：US20180152329A1

公开(公告)日：2018-05-31

申请号：US15578135

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/03 ,  H04L27/26

CPC classification number: H04L25/03821 ,  H04B3/32 ,  H04J11/0063 ,  H04L25/02 ,  H04L25/03 ,  H04L25/0328 ,  H04L25/03305 ,  H04L27/261 ,  H04L27/2691

Abstract: A method for performing self-interference cancellation by a communication device which uses an FDR mode can comprise the steps of: measuring the strength of a residual self-interference signal, after antenna and analog self-interference cancellation, for each subband with respect to a predetermined number of subbands configured in a communication device; determining the order of a nonlinear self-interference signal component, to be considered for channel estimation of a nonlinear self-interference signal, for each subband on the basis of the strength of the residual self-interference signal that has been measured for each subband; and performing channel estimation of the nonlinear self-interference signal on the basis of the order that has been determined for each subband.

公开(公告)号：US20180083749A1

公开(公告)日：2018-03-22

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: H04L5/00 ,  H04W72/04 ,  H04L5/12

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：US20180049154A1

公开(公告)日：2018-02-15

申请号：US15550345

申请日：2015-04-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04W64/00 ,  H01Q3/22 ,  H04W76/02 ,  H04W16/28 ,  H04W48/16 ,  H01Q3/26 ,  H04B7/08

CPC classification number: H04W64/006 ,  H01Q3/22 ,  H01Q3/26 ,  H04B7/0695 ,  H04B7/088 ,  H04W16/28 ,  H04W48/16 ,  H04W64/00 ,  H04W64/003 ,  H04W76/10

Abstract: The present invention provides a scanning method to reduce overhead in a millimeter wave (mmWave) scanning scheme by using position information of a terminal in a mmWave system, and devices supporting same. The method for the terminal performing mmWave beam scanning based on position information mmWave beam scanning based on position information of the terminal in the wireless access system supporting millimeter wave (mmWave) technology, according to one embodiment of the present invention, comprises the steps of: receiving, from a legacy base station, a position reference signal; calculating measurement information to calculate the position information of the terminal based on the positioning reference signal; transmitting the measurement information to the legacy base station; receiving, from a mmWave base station, first angle information generated based on the measurement information; determining a mmWave pCell by performing a first mmWave beam scanning based on the first angle information; and transmitting, to the mmWave pCell, a mmWave pilot signal for a second mmWave beam scanning.

公开(公告)号：US20180048347A1

公开(公告)日：2018-02-15

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

CPC classification number: H04B1/525 ,  H04B1/0475 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0082 ,  H04L5/14 ,  H04L5/1461 ,  H04L25/0202 ,  H04L25/0226 ,  H04L27/261

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：US20180034500A1

公开(公告)日：2018-02-01

申请号：US15550742

申请日：2015-02-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04B1/7087 ,  H04B1/7083

CPC classification number: H04B1/7087 ,  H04B1/7083 ,  H04B1/7163 ,  H04B7/04 ,  H04B7/0695 ,  H04B7/088 ,  H04B7/2643 ,  H04W52/0245 ,  H04W56/0015 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/40 ,  Y02D70/444 ,  Y02D70/449

Abstract: The present invention relates to a signal transceiving method for detecting site-specific ray characteristics information unique to millimeter wave (mm Wave) links and detecting rich resolvable rays, and to device supporting same. The method for a terminal ray-scanning in a wireless access system supporting millimeter wave technology, according to one embodiment of the present invention, comprises the steps of: receiving a synchronization signal to synchronize with a base station; synchronizing with the base station using the synchronization signal; receiving, from the base station, pilot signals having different configuration patterns according to each transmitting antenna port; and ray-scanning using the pilot signals.

公开(公告)号：US20180026773A1

公开(公告)日：2018-01-25

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 ,  H04B15/00 ,  H04L25/02

CPC classification number: H04L5/14 ,  H04B15/00 ,  H04L5/1461 ,  H04L25/0202 ,  H04L25/0226 ,  H04L27/26 ,  H04W84/045

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：US20180020457A1

公开(公告)日：2018-01-18

申请号：US15546869

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04W24/10 ,  H04W28/02 ,  H04W72/04 ,  H04L5/14 ,  H04W24/08

CPC classification number: H04W72/082 ,  H04B17/24 ,  H04B17/345 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/14 ,  H04W24/08 ,  H04W24/10 ,  H04W28/0236 ,  H04W52/241 ,  H04W72/0446 ,  H04W72/0453 ,  H04W88/08

Abstract: The present invention relates to a method and apparatus for allocating a resource by a base station in a wireless communication system supporting full-duplex communication. Specifically, the present invention comprises the steps of: transmitting, to a plurality of UEs, measurement information including time information and information on candidate sub-bands for measuring inter-device interference (IDI); receiving, from the plurality of UEs, IDI measurement results measured according to the measurement information; and performing resource allocation for the plurality of UEs on the basis of the IDI measurement results, wherein the information on candidate sub-bands includes at least one candidate sub-band configured for each of the plurality of UEs on the basis of channel measurement between the base station and the corresponding UE.

公开(公告)号：US20180013466A1

公开(公告)日：2018-01-11

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: H04L5/14 ,  H04B7/08 ,  H04B15/02 ,  H04B1/56

CPC classification number: H04B1/12 ,  H04B1/525 ,  H04B1/56 ,  H04B7/0857 ,  H04B15/02 ,  H04B17/14 ,  H04B17/345 ,  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 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.

公开(公告)号：US20170318564A1

公开(公告)日：2017-11-02

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: H04W72/04

CPC classification number: H04L5/0087 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0092 ,  H04L5/14 ,  H04W52/34 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1273 ,  H04W72/1289

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：US20170257239A1

公开(公告)日：2017-09-07

申请号：US15448448

申请日：2017-03-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/14 ,  H04L25/02

CPC classification number: H04L25/0204 ,  H04L5/0048 ,  H04L25/0226 ,  H04L25/0228 ,  H04W52/04

Abstract: A method of demodulating a channel by a user equipment in a wireless communication system, include the steps of receiving information including a total power value of reference signals (RSs), a power difference value between power of a first RS for control information and a power of a second RS for data among the RSs, a port number of an additional RS, a cyclic shift (CS) value of the additional RS, and a power value of the additional RS and a power difference value between second RSs for the control information, performing channel estimation on a first channel on which the additional RS is received and a second channel received from a port identical to the port number of the additional RS and the second channel on which the first RS to which a CS value different from the CS value of the additional RS is applied is received, obtaining a power difference value between the power of the additional RS and the power of the first RS based on the channel estimation of the first and the second channels, and determining a number of rank of the second RS based on the total power value of the RSs, the power value of the additional RS, a power difference value between the power of the first RS and the power of the second RS, the obtained power difference value between the power of the additional RS and the power of the first RS, and the power difference value between the power of the second RSs.