公开(公告)号：US09986451B2

公开(公告)日：2018-05-29

申请号：US14299676

申请日：2014-06-09

Applicant: LG ELECTRONICS INC. ,  Industry-Academic Cooperation Foundation, Yonsei University

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

IPC: H04W72/00 ,  H04W24/08 ,  H04W72/12 ,  H04B7/024 ,  H04B7/06

CPC classification number: H04W24/08 ,  H04B7/024 ,  H04B7/0626 ,  H04W72/1226

Abstract: A method is provided for transceiving a signal through at least two data streams in a wireless communication system. A first base station measures a wireless channel state for a link with a second base station by using an orthogonal pilot signal. The first base station receives channel status information related to a link of a first mobile station from the first mobile station, channel status information related to a link of a second mobile station from the second mobile station, and channel status information related to a device-to-device (D2D) link from the second mobile station. The D2D link is a channel link between the mobile stations. The first base station exchanges the received channel status information with the second base station, the first mobile station and the second mobile station using a broadcast signal, and determines data stream directions of the first base station and the second base station.

公开(公告)号：US09967849B2

公开(公告)日：2018-05-08

申请号：US15032582

申请日：2014-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Hakseong Kim ,  Inkwon Seo

IPC: H04W56/00 ,  H04L5/00 ,  H04L29/06 ,  H04W4/00 ,  H04B7/26

Abstract: Disclosed is a method for transmission of a device-to-device (D2D) signal by a terminal in a wireless communication system. The method for transmission of a D2D signal, according to an embodiment of the present invention, comprises the steps of: a first terminal generating a D2D synchronization signal; and transmitting a subframe comprising the D2D synchronization signal, wherein the D2D synchronization signal comprises a primary D2D synchronization signal and a secondary D2D synchronization signal, and wherein, if at least one of the primary D2D synchronization signal and the secondary D2D synchronization signal in the subframe comprises two or more sequences that are transmitted in the subframe at different times, the two or more sequences are different from one another.

公开(公告)号：US09967062B2

公开(公告)日：2018-05-08

申请号：US15118809

申请日：2015-02-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Suckchel Yang ,  Hanbyul Seo ,  Seungmin Lee

IPC: H04L1/18 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04L1/1861 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/1469 ,  H04W72/0413 ,  H04W72/042

Abstract: According to one embodiment of the present invention, a method for transmitting a hybrid automatic repeat request (HARQ)-ACK in a wireless communication system, comprises the steps of: determining a physical uplink control channel (PUCCH) resource for a plurality of downlink subframes using a HARQ-ACK resource offset (ARO); and transmitting HARQ-ACK from one uplink subframe via the PUCCH resource.

公开(公告)号：US20180049149A1

公开(公告)日：2018-02-15

申请号：US15556354

申请日：2016-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho Lee ,  Hyukjin Chae

IPC: H04W64/00 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W64/00 ,  H04B7/04 ,  H04B7/0619 ,  H04L5/0048 ,  H04W24/10 ,  H04W88/08

Abstract: A reference signal measurement method for determining a location in a wireless communication system, according to an embodiment of the present invention, is performed by means of a terminal. The method comprises the steps of: the terminal transmitting to a location server a report which relates to the capability for measuring a precoded reference signal (RS) for determining a vertical location; receiving, from the location server, configuration information for measuring the precoded RS; and measuring the precoded RS with respect to the configuration information and reporting the result thereof to the location server, wherein the configuration information can comprise a frequency or time domain for measuring the precoded RS by the terminal, a base station transmitting the precoded RS that is to be reported by the terminal, or information about the precoded RS that is to be reported by the terminal.

公开(公告)号：US09882697B2

公开(公告)日：2018-01-30

申请号：US14759355

申请日：2014-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Seungmin Lee

IPC: H04L5/00 ,  H04L1/18 ,  H04W74/00

CPC classification number: H04L5/0055 ,  H04L1/1854 ,  H04W74/004 ,  H04W74/006

Abstract: One embodiment of the present invention relates to a method for user equipment transmitting an uplink receipt confirmation reply in a wireless communication system, comprising the steps of: receiving a downlink signal from subframe n; and transmitting a receipt confirmation reply with respect to the downlink signal from the kth subframe from the subframe from which the downlink signal is received, wherein resource for the receipt confirmation reply from the kth subframe is allocated with priority for subframes in a first group common to downlink subframes required to transmit the receipt confirmation reply from the kth subframe according to a first timeline, and downlink subframes required to transmit the receipt confirmation reply from the kth subframe according to a second timeline.

公开(公告)号：US09876666B2

公开(公告)日：2018-01-23

申请号：US15113021

申请日：2015-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo

IPC: G01R31/08 ,  H04L5/14 ,  H04L12/28 ,  H04J3/00 ,  H04L27/26 ,  H04W56/00

CPC classification number: H04L27/2692 ,  H04L27/2613 ,  H04L27/2656 ,  H04W56/001

Abstract: In one embodiment of the present invention, a method for acquiring device-to-device (D2D) synchronization by a terminal in a wireless communication system comprises the steps of: receiving a subframe; and detecting a D2D synchronization signal including a first synchronization signal and a second synchronization signal, from a plurality of orthogonal frequency division multiplexing (OFDM) signals of the subframe, wherein the terminal can determine a kind of an application related to the D2D synchronization signal from a symbol structure formed by an OFDM symbol through which the first synchronization signal is transmitted and an OFDM symbol through which the second synchronization signal is transmitted.

公开(公告)号：US09848418B2

公开(公告)日：2017-12-19

申请号：US15353358

申请日：2016-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Hakseong Kim ,  Joonkui Ahn ,  Hyukjin Chae ,  Hanbyul Seo

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W52/34 ,  H04B1/707 ,  H04J13/00

CPC classification number: H04W72/042 ,  H04B1/707 ,  H04J13/004 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04W52/34 ,  H04W72/0413

Abstract: A method and corresponding apparatus, where the apparatus transmits, to a user equipment (UE), downlink control information (DCI) including a downlink assignment index (DAI) through an enhanced physical downlink control channel (E-PDCCH). The DCI transmitted through the E-PDCCH includes an additional field which is not present in DCI transmitted through a physical downlink control channel (PDCCH). If the DAI value included in the DCI is greater than 1, the additional field is used to determine a single resource for the ACK/NACK among the plurality of PUCCH resources configured by a higher layer signal.

公开(公告)号：US09743240B2

公开(公告)日：2017-08-22

申请号：US14906865

申请日：2014-07-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/00 ,  H04W4/02 ,  G01S11/02 ,  H04W64/00 ,  H04W56/00 ,  H04W76/02

CPC classification number: H04W4/023 ,  G01S11/02 ,  H04W56/0015 ,  H04W56/0065 ,  H04W64/00 ,  H04W76/14

Abstract: Disclosed is a method for transmitting, by a user equipment (UE), signals via a device-to-device (D2D) link in a wireless communication system. Specifically, the method comprises the steps of: transmitting a control signal for the D2D link including a timing adjustment value for the D2D link based on a reference timing to a target UE without applying the timing adjustment value; and transmitting a data signal for the D2D link to the target UE with applying the timing adjustment value. Here, the timing adjustment value for the D2D link is same as a timing adjustment value for an uplink to a base station (BS).

公开(公告)号：US09736674B2

公开(公告)日：2017-08-15

申请号：US14895920

申请日：2014-06-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W8/00 ,  H04L5/00 ,  H04W76/02 ,  H04L27/26

CPC classification number: H04W8/005 ,  H04L5/0032 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/2613

Abstract: Provided are a discovery signal transmission method of a terminal supporting device-to-device (D2D) communication and a terminal device using such a method. The method comprises: directly receiving information on a specific discovery signal (DS) transmission mask or receiving discovery signal configuring information; selecting the specific DS transmission mask or one DS transmission mask from among a plurality of DS transmission masks indicated by the DS configuring information; and transmitting a discovery signal on the basis of the selected DS transmission mask.

公开(公告)号：US09712283B2

公开(公告)日：2017-07-18

申请号：US14835393

申请日：2015-08-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo

IPC: H04W72/04 ,  H04L1/16 ,  H04J1/02 ,  H04W76/02 ,  H04L5/00

CPC classification number: H04L1/1614 ,  H04J1/02 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0053 ,  H04W72/0446 ,  H04W76/14

Abstract: According to an embodiment of the present invention, a method for transmitting Device-to-Device (D2D) data by a User Equipment (UE) in a wireless communication system, the method comprising: determining a bitmap to be applied to a subframe pool for data transmission from a subframe indicator bitmap; determining a set of subframes to transmit D2D data by using the bitmap to the subframe pool for data transmission; and transmitting D2D data in a subframe included in the determined subframe set, wherein a set of values available as k being the number of 1s in the subframe indicator bitmap are changed according to a Uplink/Downlink (UL/DL) configuration set to which a UL/DL configuration configured for the UE belongs.