公开(公告)号：US10568057B2

公开(公告)日：2020-02-18

申请号：US15563530

申请日：2016-04-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae

IPC: H04W56/00 ,  H04W76/14 ,  H04W8/00 ,  H04W64/00 ,  H04W72/04

Abstract: One embodiment of the present invention relates to a method by which a user equipment (UE) performs ranging in a wireless communication system, comprising the steps of: transmitting a D2D signal in a subframe N by a first UE; receiving the D2D signal in a subframe N+K from a second UE, which has set, as a subframe boundary, a time point at which the D2D signal is received; and measuring, by the first UE, a round trip time (RTT) by detecting a reception time point of the D2D signal transmitted by the second UE.

公开(公告)号：US10560935B2

公开(公告)日：2020-02-11

申请号：US15563845

申请日：2016-04-04

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Kwangseok Noh ,  Dongkyu Kim ,  Hanbyul Seo

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

Abstract: According to one embodiment of the present invention, a method by which a first device transmits and receives a signal in a wireless communication system comprises the steps of: transmitting system information; and transmitting a downlink signal in a predetermined subframe on the basis of the system information, wherein, when the predetermined subframe is indicated as a subframe for an uplink transmission in the system information, the first device transmits, to a second device, information indicating that a frequency shift has been applied and/or information indicating that a time shift has been applied.

公开(公告)号：US10541848B2

公开(公告)日：2020-01-21

申请号：US16064437

申请日：2016-12-21

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae

IPC: H04L27/26 ,  H04W4/70 ,  H04L5/00 ,  H04W72/04

Abstract: One embodiment of the present invention relates to a method for a terminal generating and transmitting a reference signal and data in a wireless communication system, comprising the steps of: generating a sequence corresponding to a basic bandwidth; generating a demodulation reference signal (DMRS) corresponding to the entire bandwidth by mapping the generated sequence onto a frequency band; truncating the generated DMRS according to the bandwidth of data to be transmitted; and transmitting the truncated DMRS and the data.

公开(公告)号：US10517057B2

公开(公告)日：2019-12-24

申请号：US15512641

申请日：2015-09-24

Applicant: LG Electronics Inc.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04B7/212 ,  H04W56/00 ,  H04J11/00 ,  H04L12/24 ,  H04W48/16 ,  H04W72/04 ,  H04W76/14 ,  H04L5/00 ,  H04W28/02 ,  H04W92/18 ,  H04W88/02

Abstract: Disclosed is a method for transmitting a D2D signal. The method for transmitting a D2D signal according to the present application comprises the step of transmitting a D2D signal in accordance with the D2D resource configuration, wherein a transmission of a different D2D signal may not occur in a subframe for transmitting a synchronization signal.

公开(公告)号：US10485013B2

公开(公告)日：2019-11-19

申请号：US15737969

申请日：2016-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hyukjin Chae ,  Youngtae Kim ,  Kijun Kim ,  Hanbyul Seo ,  Hanjun Park

IPC: H04J3/16 ,  H04W72/12 ,  H04W72/10 ,  H04L5/00 ,  H04W4/90 ,  H04W4/44 ,  H04W4/40 ,  H04W72/02 ,  H04W72/04 ,  H04L27/26

Abstract: The present invention relates to a Vehicle-to-X (V2X) communication method performed by a terminal in a wireless communication system. The method comprises: determining priority of information related to the V2X communication; selecting a transmission time interval (TTI) on the basis of the priority; and transmitting the information on the basis of the selected TTI. If the information related to the V2X communication is information having high priority, a first TTI is selected, and if the information related to the V2X communication is information having relatively lower priority than the information having high priority, a second TTI is selected.

公开(公告)号：US10484988B2

公开(公告)日：2019-11-19

申请号：US15305323

申请日：2015-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Kijun Kim ,  Byounghoon Kim ,  Joonkui Ahn ,  Suckchel Yang ,  Youngtae Kim

IPC: H04W4/00 ,  H04W72/04 ,  H04B7/26 ,  H04W92/18

Abstract: A method by which a user equipment (UE) transmits device-to-device (D2D) data in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: determining a bitmap to be applied to a subframe pool for data transmission by using information indicating a time resource pattern (TRP); and transmitting D2D data in a subframe indicated by the bitmap, wherein a set of bitmaps indicatable by the information indicating the TRP when a radio resource control (RRC) information element related to a TRP subset is configured in the UE is a subset of a bitmap set indicatable by the information indicating the TRP when the UE is not concerned in the RRC information element related to the TRP subset.

公开(公告)号：US10433294B2

公开(公告)日：2019-10-01

申请号：US15753877

申请日：2016-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo

IPC: H04W72/04 ,  H04J13/00 ,  H04W56/00 ,  H04W4/70 ,  H04W4/40 ,  H04L5/00 ,  H04L27/26 ,  H04J11/00

Abstract: In one embodiment of the present invention, a method by which a terminal transmits a signal in a wireless communication system comprises the steps of: generating a sequence having a length of 63 and having a punctured central element; inserting one or more zeros among respective elements of the sequence and mapping the sequence to RE; and transmitting the mapped sequence, wherein the number of one or more zeros inserted among the respective elements of the sequence corresponds to (a repetition factor—1), and zeros are additionally inserted such that the sequence is symmetrical with respect to the central element of the sequence, when the repetition factor is an even number.

公开(公告)号：US10425211B2

公开(公告)日：2019-09-24

申请号：US15506206

申请日：2015-09-01

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Hanbyul Seo ,  Kijun Kim ,  Jonghyun Park ,  Joonkui Ahn ,  Hyukjin Chae

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/12 ,  H04W74/04 ,  H04L1/00 ,  H04B7/024 ,  H04W16/14 ,  H04W74/00 ,  H04L27/00

Abstract: A wireless access system supporting an unlicensed band and, more particularly, to a method for measuring a channel state and an apparatus for supporting the same. As one embodiment of the present invention, a method for reporting channel state information (CSI) in a wireless access system supporting an unlicensed band may comprise the steps of: receiving an upper layer signal including channel state information-reference signal (CSI-RS) configuration information and channel state information-interference measurement (CSI-IM) configuration information for one or more transmission points (TP) included in a transmission opportunity (TxOP) duration; receiving a physical layer signal including TxOP configuration information that indicates which TP is included in the TxOP duration; measuring the CSI by using a CSI-RS resource and a CSI-IM resource for the TP indicated by the TxOP configuration information, on the basis of the CSI-RS configuration information and the CSI-IM configuration information; and reporting the measured CSI.

公开(公告)号：US10420050B2

公开(公告)日：2019-09-17

申请号：US15118842

申请日：2015-02-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04W76/14

Abstract: The present invention relates to a method and an apparatus which enable a terminal to transmit a signal for device-to-device (D2D) communication in a wireless communication system. Specifically, the present invention transmits a synchronization signal for D2D communication and a demodulation reference signal (DM-RS) for demodulation of the synchronization signal, wherein the base sequence of the demodulation reference signal is generated using a synchronization reference ID.

公开(公告)号：US10397954B2

公开(公告)日：2019-08-27

申请号：US15524819

申请日：2015-11-06

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Kijun Kim ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04L5/00 ,  H04L27/00 ,  H04W16/14 ,  H04W74/08 ,  H04W88/08

Abstract: The present invention relates to a wireless connection system that supports unlicensed bands. A method for performing backoff, methods for configuring a reservation signal transmission and a transmission opportunity section, and apparatus supporting the same. A method for performing a backoff operation in a wireless connection system supporting unlicensed bands, that is an embodiment of the present invention, may comprises the steps of: configuring a backoff counter N so as to perform a backoff operation; determining whether a current sub-frame is a back-off permitted section; performing a carrier sensing (CS) operation for checking if an unlicensed band is in an idle state if the sub-frame is within a backoff permitted section, for each CS unit; decreasing the backoff counter N by 1 after performing the CS operation; and transmitting a reservation signal or data using a U cell that is formed in an unlicensed band if the backoff counter value expires. In this regard, the CS operation is not performed in sub-frames except for the backoff permitted section and the backoff counter value can be maintained continuously.