公开(公告)号：US10477488B2

公开(公告)日：2019-11-12

申请号：US16094079

申请日：2017-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoo Hong ,  Hyukjin Chae

IPC: H04W52/24 ,  H04W52/46 ,  H04W88/04

Abstract: A method for transmitting, by a first relay user equipment (UE), signals by considering interferences in a further enhancement D2D (FeD2D) environment comprises the steps of: calculating, by the first relay UE, a distance to a virtual remote user equipment (UE) located on a straight line between the first relay UE and a second relay UE; determining an allowable interference intensity for the virtual remote UE, on the basis of a predetermined target signal to interference and noise ratio (SINR) value for the virtual remote UE and an intensity of a received signal from the second relay UE of the virtual remote UE; determining a transmission power on the basis of the allowable interference intensity and the calculated distance; and comparing the determined transmission power with a minimum transmission power that satisfies the target SINR, wherein the virtual remote UE may be located at a threshold of a target range of the second relay UE.

公开(公告)号：US10476726B2

公开(公告)日：2019-11-12

申请号：US15773533

申请日：2016-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Hyukjin Chae ,  Hanbyul Seo

IPC: H04L27/26 ,  H04W24/10 ,  H04W72/04 ,  H04W4/70 ,  H04W4/46 ,  H04L5/00

Abstract: The present invention relates to a method for electricity measurement by a vehicle-to-vehicle (V2V) device for V2V communications in a wireless communication system and to a device therefor. In particular, the present invention comprises the steps of: receiving at least one synchronization signal for V2V through a physical sidelink broadcast channel (PSBCH); and measuring received electricity from said at least one synchronization signal if the ID of said at least one synchronization signal is linked to a demodulation reference signal (DMRS) sequence having, applied thereto, an orthogonal cover code (OCC) having one fixed value, wherein the measurement is performed by means of averaging for each ID of said at least one synchronization signal.

公开(公告)号：US10462692B2

公开(公告)日：2019-10-29

申请号：US15564422

申请日：2016-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Seungmin Lee

IPC: H04W24/10 ,  H04W24/02 ,  H04W24/08 ,  H04B17/318 ,  H03M13/09 ,  H04L25/02 ,  H04W72/12 ,  H04W48/16 ,  H04L1/00 ,  H04W88/04 ,  H04L5/00 ,  H04W48/20 ,  H04W84/04

Abstract: An embodiment of the present invention relates to a method for performing measurement by a terminal in a wireless communication system, the method comprising the steps of: receiving D2D signals transmitted by a plurality of relay terminals; and performing measurement using at least one signal among the D2D signals, wherein the D2D signal subjected to the measurement is a D2D signal having a valid CRC.

公开(公告)号：US10382989B2

公开(公告)日：2019-08-13

申请号：US15578559

申请日：2016-06-01

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04W24/08 ,  H04W76/10 ,  H04W92/10 ,  H04W92/18 ,  H04W88/04 ,  H04W88/08 ,  H04W92/20

Abstract: The present invention provides a device-to-device (D2D) operation method performed by a remote UE in a wireless communication system, the method comprising: measuring the quality of a link between a relay UE and the remote UE on the basis of an offset; and selecting a relay UE suitable for the remote UE on the basis of the measurement, wherein the offset is determined on the basis of information which may have an effect on communicating with a base station by the remote UE through the relay UE.

公开(公告)号：US10349371B2

公开(公告)日：2019-07-09

申请号：US15317699

申请日：2015-06-22

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Bonghoe Kim ,  Kijun Kim ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04W64/00 ,  H04W4/02

Abstract: The present invention provides a method for performing positioning by a terminal in a wireless communication system including: receiving assistance data including reference cell information (ReferenceCellInfo) and neighboring cell information (NeighbourCellInfo) from a serving base station; receiving a positioning reference signal from each of a reference cell and at least one neighboring cell based on the received assistance data; measuring a reference signal time difference (RSTD) for the reference cell of at least one neighboring cell by using the received positioning reference signal; and reporting the measured RSTD to the serving base station.

公开(公告)号：US10334591B2

公开(公告)日：2019-06-25

申请号：US15313947

申请日：2015-05-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04W48/16 ,  H04W72/04 ,  H04W72/02 ,  H04W4/70 ,  H04W76/14 ,  H04B1/7136 ,  H04L5/00 ,  H04L29/08 ,  H04W8/00 ,  H04W84/12 ,  H04W84/18 ,  H04W92/18 ,  H04L1/18 ,  H04W88/02 ,  H04W84/04 ,  H04L1/00

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 time-frequency resources for transmitting a discovery signal in a discovery period; and transmitting a discover signal on the time-frequency resources, wherein the discovery signal, if repeated b number of times in the discovery period, is repeated in consecutive time resources, and the frequency resources in each consecutive time resource are hopped as much as floor(Nf/b), wherein Nf is the number of discovery resources per subframe.

公开(公告)号：US10250367B2

公开(公告)日：2019-04-02

申请号：US15551508

申请日：2016-02-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/06 ,  H04B7/04 ,  H04L5/00 ,  H04B7/0413 ,  H04L27/26 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: Disclosed is a communication method of a multiple-input and multiple-output (MIMO) space-time block code (STBC) scheme using an uplink resource. In the MIMO STBC scheme of the present disclosure, data is allocated, according to the STBC scheme, to remaining symbols except orthogonal frequency division multiplexing (OFDM) symbols for a reference signal, and the STBC scheme may not be applied to a first OFDM symbol.

公开(公告)号：US10187903B2

公开(公告)日：2019-01-22

申请号：US15329040

申请日：2015-07-29

Applicant: LG Electronics Inc.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Byounghoon Kim ,  Hyukjin Chae

IPC: H04L1/18 ,  H04J11/00 ,  H04W72/04 ,  H04W72/12

Abstract: The present invention discloses a method for receiving a D2D signal of a D2D reception terminal in a wireless communication system. Specifically, the method comprises steps of: receiving a resource pool configuration for D2D communication; and, in accordance to whether or not under the fall-back mode of enhanced interference management for traffic adaptation (eIMTA), receiving a D2D signal from a D2D transmission terminal by means of at least one from among a first wireless resource or a second wireless resource within the resource pool configuration, wherein the first wireless resource is a wireless resource for which the use thereof is configured according to the system information block (SIB) uplink-downlink configuration and is not reconfigured by means of hierarchical signaling, and the second wireless resource is a wireless resource for which the use thereof according to the SIB uplink-downlink configuration is reconfigured by means of hierarchical signaling in the eIMTA mode.

公开(公告)号：US10172108B2

公开(公告)日：2019-01-01

申请号：US15512709

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Hyukjin Chae

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

Abstract: A method is provided for transmitting a synchronization signal by a Device-to-Device (D2D) user equipment (UE). The UE receives discovery transmission pool configuration information and synchronization signal resource information, and transmits the synchronization signal based on the discovery transmission pool configuration information and the synchronization signal resource information. When a first subframe of a discovery transmission pool indicated by the discovery transmission pool configuration information corresponds to a subframe indicated by the synchronization signal resource information, the synchronization signal is transmitted in the first subframe of the discovery transmission pool. Otherwise, when the first subframe does not correspond to the indicated subframe, the synchronization signal is transmitted in a subframe positioned before the first subframe of the discovery transmission pool and nearest to the first subframe of the discovery transmission pool among subframes indicated by the synchronization signal resource information. The discovery transmission pool is periodically configured.

公开(公告)号：US20180338300A1

公开(公告)日：2018-11-22

申请号：US16048969

申请日：2018-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04W72/02 ,  H04W72/04 ,  H04W4/40 ,  H04W8/00 ,  H04W72/00

CPC classification number: H04W72/02 ,  H04L67/12 ,  H04L69/14 ,  H04W4/40 ,  H04W8/005 ,  H04W72/005 ,  H04W72/048

Abstract: Provided are a method for transmitting a vehicle-to-everything (V2X) signal performed by a user equipment (UE) having a limited transmission capability in a multi-carrier system and a UE using the method. The method includes selecting a first resource in a first carrier, if using a specific subframe in a second carrier exceeds a transmission capability of the UE considering the first resource, selecting a second resource randomly among the remaining subframes except the specific subframe in the second carrier and transmitting the V2X signal using the first resource and the second resource.