公开(公告)号：US10396916B2

公开(公告)日：2019-08-27

申请号：US15981292

申请日：2018-05-16

Applicant: LG ELECTRONICS INC. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Hyukjin Chae ,  Byoung-Yoon Min ,  Kiyeon Kim ,  Dong Ku Kim

IPC: H04W72/08 ,  H04J1/00 ,  H04J3/00 ,  H04B17/336 ,  H04W24/08 ,  H04W72/12 ,  H04B7/024 ,  H04B7/06 ,  H04L1/00

Abstract: A method for transceiving, by a network, a signal through at least two streams in a wireless communication system, includes measuring a channel state for the at least two streams by using a reference signal, determining at least one stream pair including a transmission stream and a reception stream based on the measured channel state, initiating a direction of one or more streams of the at least one stream pair, and transceiving the signal based on the one or more streams of the at least one stream pair.

公开(公告)号：US10367625B2

公开(公告)日：2019-07-30

申请号：US15308065

申请日：2015-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho Lee ,  Hyukjin Chae ,  Seungmin Lee

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/0456

Abstract: Provided is a method by a first transmitting node transmitting, in cooperation with two other transmitting nodes, radio signals using two radio resource units to three receiving nodes which the respective transmitting nodes serve, the method being performed by the first transmitting node and comprising: establishing, for a first receiving node, a CSI-RS resource and a CSI-IM resource; receiving, from the first receiving node, a first recommended PMI for the first transmitting node according to information measured in the CSI-RS resource and the CSI-IM resource, and receiving, from the remaining two transmitting node, a second recommended PMI for the first transmitting node, which has been reported from the remaining two receiving nodes; and muting at a first wireless resource unit among the two wireless resource units, and transmitting, at the second wireless resource unit, a wireless signal based on the first recommended PMI or the second recommended PMI.

公开(公告)号：US10349365B2

公开(公告)日：2019-07-09

申请号：US15306747

申请日：2015-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo ,  Inkwon Seo ,  Hyukjin Chae

IPC: H04W56/00 ,  H04J11/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W92/18

Abstract: The present invention relates to a wireless communication system. Disclosed is a method for transmitting a synchronization signal for direction communication between terminals. A method for transmitting a synchronization signal according to one embodiment of the present invention comprises the steps of: mapping a synchronization signal for direction communication between terminals to a sub-frame comprising a first slot and a second slot; and transmitting, to a counterpart terminal, the sub-frame to which the synchronization signal is mapped, wherein the synchronization signal is mapped to four orthogonal frequency division multiple access (OFDM) symbols of the sub-frame, and at least two OFDM symbols of the four OFDM symbols may be adjacent to each other.

公开(公告)号：US10250302B2

公开(公告)日：2019-04-02

申请号：US15510844

申请日：2015-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Kijun Kim ,  Hyungtae Kim ,  Jonghyun Park ,  Hyukjin Chae

IPC: H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04B7/0456

Abstract: The present invention relates to a method and an apparatus for transmitting, by a base station, a reference signal in a wireless communication system supporting a multi-antenna consisting of a plurality of horizontal domain antennas and a plurality of vertical domain antennas. Specifically, the method comprises the steps of: configuring, as a cell-specific reference signal (CRS) port, M first antenna ports among a total of N antennas that the base station has (where N and M are positive integers, N>M); transmitting a CRS using the M first antenna ports and transmitting a demodulation reference signal (DM-RS) using O second antenna ports (where O is a positive integer, N>O), to a terminal; and receiving channel measurement information using the CRS and the DM-RS which is fed back from the terminal.

公开(公告)号：US10244482B2

公开(公告)日：2019-03-26

申请号：US15748134

申请日：2016-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae

IPC: H04W52/10 ,  H04B17/10 ,  H04W4/40 ,  H04W52/24 ,  H04W72/04

Abstract: A method by which a terminal transmits a signal in a wireless communication system supporting vehicle to everything (V2X), according to one embodiment of the present invention, comprises the steps of: measuring a path loss for a stationary node; and transmitting a V2X signal on the basis of a V2X transmission period or an event trigger, wherein, when the V2X signal is transmitted in a periodically set open loop power control (OLPC) resource region, transmission power of the V2X signal is determined on the basis of the measured path loss, and a period of the OLPC resource region can be set to be independent from the V2X transmission period.

公开(公告)号：US10243639B2

公开(公告)日：2019-03-26

申请号：US15545209

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Hanbyul Seo ,  Hyukjin Chae ,  Kijun Kim

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/04 ,  H04B7/024

Abstract: Disclosed is a method for supporting uplink multiple-input and multiple-output (MIMO) in a wireless communication system. A method for transmitting data according to the present invention comprises the steps of: mapping, to first orthogonal frequency division multiplexing (OFDM) symbols within a subframe, first demodulation reference signals (DMRSs) corresponding to a first antenna port and a second DMRSs corresponding to a second antenna port; mapping, to second OFDM symbols except the first OFDM symbols within the subframe, first data corresponding to the first antenna port and second data corresponding to the second antenna port; and transmitting the subframe by using resources allocated to the uplink, wherein predetermined precodings are applied to the first data and the second data, and the predetermined precodings may be changed according to the index of the second OFDM symbols.

公开(公告)号：US10225759B2

公开(公告)日：2019-03-05

申请号：US15545108

申请日：2016-02-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho Lee ,  Hanjun Park ,  Hyukjin Chae

IPC: H04W24/10 ,  H04W64/00 ,  H04W72/04 ,  H04L5/00 ,  H04W16/14 ,  H04W74/08 ,  H04W88/02

Abstract: Disclosed is a method for receiving a reference signal for determining location by means of one or more unlicensed band cells in a wireless communication system, and the method, carried out by a terminal, may comprise the steps of: receiving configuration information associated with a positioning reference signal (PRS) transmitted by means of one or more unlicensed band cells, the PRS-related configuration information comprising information regarding the subframe from which the PRS is transmitted; receiving and measuring the PRS by means of the PRS-related configuration information; and reporting the results of the PRS measurement to a serving base station.

公开(公告)号：US10212703B2

公开(公告)日：2019-02-19

申请号：US15313950

申请日：2015-05-27

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Byounghoon Kim ,  Myoungseob Kim

IPC: H04L29/08 ,  H04W84/18 ,  H04W72/04 ,  H04W72/02 ,  H04W48/16 ,  H04W4/70 ,  H04W76/14 ,  H04B1/7136 ,  H04L5/00 ,  H04W8/00 ,  H04W84/12 ,  H04W92/18 ,  H04W88/02 ,  H04W84/04

Abstract: According to an embodiment of the present invention, a discovery signal transmission method, by a device to device (D2D) terminal in a wireless communication system, comprises the steps of: determining a subframe pool in a discovery period; and transmitting a discovery signal in a subframe comprised in the subframe pool; wherein a frequency resource index and a time resource index, on which a discovery signal is transmitted in another discovery period which follows the discovery period, are determined by means of next_nf=(f_shift+floor((nf+Nf*nt)/Nt)) mod Nf and next_nt=(t_shift+nf+Nf*nt) mod Nt, respectively, wherein Nf is the number of discovery resources per subframe, Nt is the number of subframes per discovery period, f_shift is a frequency shift, t_shift is a subframe shift, nf is a frequency resource index on which the discovery signal is transmitted, nt is a time resource index on which the discovery signal is transmitted, and the f_shift and the t_shift are determined on the basis of the value that is indicated by means of an upper layer parameter.

公开(公告)号：US10080232B2

公开(公告)日：2018-09-18

申请号：US15305638

申请日：2015-05-18

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Jihyun Lee ,  Hakseong Kim ,  Hyukjin Chae

IPC: H04W72/12 ,  H04W76/14 ,  H04B7/26 ,  H04W56/00 ,  H04W72/04 ,  H04W8/00 ,  H04W48/16 ,  H04W92/18

CPC classification number: H04W72/12 ,  H04B7/26 ,  H04W8/005 ,  H04W48/16 ,  H04W56/00 ,  H04W72/0446 ,  H04W76/14 ,  H04W92/18

Abstract: The present invention relates to a method and a device for transmitting, by a first terminal, a device-to-device (D2D) signal in a wireless communication system. Particularly, the method comprises the steps of: performing D2D transmission scheduling for a device-to-device synchronization signal (D2DSS) and a device-to-device channel (D2DCH); and transmitting a D2D signal on a first D2D subframe among a plurality of D2D subframes, wherein the first D2D subframe is a D2D subframe in which a D2D synchronization signal transmission for the first terminal is configured among D2D subframes configured to enable a D2D synchronization signal transmission, and the D2D signal drops the D2DCH when the D2DSS and the D2DCH are simultaneously scheduled on the first D2D subframe.

公开(公告)号：US10075972B2

公开(公告)日：2018-09-11

申请号：US15033049

申请日：2014-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hakseong Kim ,  Hanbyul Seo ,  Jihyun Lee ,  Kijun Kim ,  Youngtae Kim

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04W76/14 ,  H04L12/911

CPC classification number: H04W72/1263 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04L47/70 ,  H04W72/0446 ,  H04W72/048 ,  H04W72/1289 ,  H04W76/14

Abstract: Disclosed is a method for transmission and reception of a device-to-device (D2D) signal by a terminal in a wireless communication system. The method for transmission and reception of a D2D signal, according to an embodiment of the present invention, comprises the steps of: receiving a scheduling assignment comprising a resources pattern for transmission (RPT); and receiving a D2D signal in a subframe indicated in the RPT, wherein each bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in the subframe within a scheduling assignment period, and wherein, if the number of the subframes comprised in the scheduling assignment period is greater than the number of the bits of the RPT, at least one bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in two or more subframes.