公开(公告)号：US10305650B2

公开(公告)日：2019-05-28

申请号：US15022114

申请日：2014-11-03

Applicant: LG ELECTRONICS INC. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Hakseong Kim ,  Seonik Seong ,  Kwangbok Lee

IPC: H04L5/00 ,  H04W8/00 ,  H04L27/00 ,  H04L5/14 ,  H04W88/02 ,  H04W76/14

Abstract: A method for transmitting a discovery message in a wireless communication system supporting device-to-device (D2D) direct communication, the method performed by the device, includes: receiving discovery resource region information including multiple discovery resource partitions from a base station; determining one discovery resource partition among multiple discovery resource partitions by using discovery search information previously shared with specific D2D terminals; determining a discovery resource for transmitting a discovery message among discovery resources in the determined discovery resource partition through a predetermined resource selecting method; and transmitting the discovery message through the determined discovery resource.

公开(公告)号：US10251167B2

公开(公告)日：2019-04-02

申请号：US14902425

申请日：2014-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo

IPC: H04W72/04 ,  H04W4/06 ,  H04W74/08 ,  H04W72/00 ,  H04W4/70 ,  H04W76/14

Abstract: The present invention provides a method whereby user equipment located outside network coverage or in partial network coverage performs device-to-device (D2D) communication. The user equipment, which has a D2D signal to transmit, can send a request for resource allocation for the transmission of the D2D signal to user equipment configured as a cluster head, or become a cluster head itself. The user equipment, which has the D2D signal to transmit, can transmit the D2D signal according to the resource allocation by the cluster head or resource allocation performed by becoming a cluster head itself. Other user equipment receives the D2D signal by receiving or overhearing information on the resource allocation from the cluster head.

公开(公告)号：US10244517B2

公开(公告)日：2019-03-26

申请号：US14358007

申请日：2012-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo ,  Hakseong Kim

IPC: H04W72/04 ,  H04L5/00

Abstract: A method for enabling a base station to transmit control information in a wireless communication system according to one embodiment of the present invention, comprises a step of transmitting an enhanced physical downlink channel (E-PDCCH) for a terminal using at least one physical resource block pair among a plurality of physical resource block pairs for transmitting the E-PDCCH, wherein the plurality of physical resource block pairs include one or more physical resource block pair sets, and a parameter related to a demodulation reference signal for the E-PDCCH is set with respect to each physical resource block pair set.

公开(公告)号：US10225855B2

公开(公告)日：2019-03-05

申请号：US15033043

申请日：2014-10-28

Applicant: LG ELECTRONICS INC.

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

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

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: receiving a location of resources, for transmitting a scheduling assignment, from a base station; and transmitting the scheduling assignment by means of the resources, wherein the scheduling assignment comprises information indicating a subframe, for transmitting a D2D-related signal in a scheduling assignment period that is subsequent to the subframe in which the scheduling assignment is transmitted.

公开(公告)号：US10212699B2

公开(公告)日：2019-02-19

申请号：US15306050

申请日：2015-04-21

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo

IPC: H04W76/14 ,  H04W76/23 ,  H04W72/04 ,  H04L5/00 ,  H04W72/12

Abstract: A method of transmitting and receiving downlink control information in a wireless communication system that supports communication between terminals and a device for the same are provided. Specifically, a method of receiving downlink control information in a wireless communication system that supports Device-to-Device (D2D) communication includes: receiving, by a terminal, downlink control information for D2D communication from a base station, wherein the downlink control information includes a Physical Sidelink Shared Channel (PSSCH) resource allocation information for D2D data transmission, and a Physical Sidelink Control Channel (PSCCH) resource for D2D control information transmission is derived from the PSSCH resource allocation information.

公开(公告)号：US10200176B2

公开(公告)日：2019-02-05

申请号：US15589077

申请日：2017-05-08

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo ,  Hakseong Kim ,  Inkwon Seo ,  Byounghoon Kim ,  Kijun Kim ,  Daewon Lee

IPC: H04L5/00 ,  H04J11/00 ,  H04W72/04 ,  H04W4/06 ,  H04W72/12 ,  H04W84/04

Abstract: A method of a first cell for supporting a downlink channel demodulation at a user equipment, the method includes transmitting, by the first cell to the user equipment via a higher layer signaling, information on a Cell-specific Reference Signal (CRS) of a second cell including Multicast/Broadcast over Single Frequency Network (MBSFN) subframe configuration information of the second cell; and transmitting, by the first cell to the user equipment, a downlink signal on the downlink channel, wherein the information on the CRS of the second cell is used by the user equipment to demodulate the downlink channel from the first cell.

公开(公告)号：US10187883B2

公开(公告)日：2019-01-22

申请号：US15817943

申请日：2017-11-20

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

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：US10181936B2

公开(公告)日：2019-01-15

申请号：US15094855

申请日：2016-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo ,  Kijun Kim ,  Jonghyun Park

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

Abstract: In the present invention, a physical uplink control channel (PUCCH) resource, which is used for transmitting acknowledgement/negative ACK (ACK/NACK) information related to downlink control information, is determined on the basis of n(1)PUCCH=f(nCCE,N(1)PUCCH,X), when the format of the downlink control information that is transmitted/received through a physical downlink control channel (PDCCH) is in accordance with a transmission mode of a user equipment, wherein n(1)PUCCH is a PUCCH resource index, N(1)PUCCH is a value which is received from the base station, nCCE is a first control channel element (CCE) index in the PDCCH, X is a parameter which is not the nCCE and the N(1)PUCCH, and wherein f is a function having the nCCE, N(1)PUCCH, and the X as a factor.

公开(公告)号：US10172115B2

公开(公告)日：2019-01-01

申请号：US14911212

申请日：2014-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Myoungseob Kim ,  Hakseong Kim ,  Hanbyul Seo

IPC: H04W72/04 ,  H04W52/38 ,  H04W92/18 ,  H04L5/00

Abstract: A method for performing Device-to-Device (D2D) communication in a wireless communication system according to the present invention, the method according to the present invention comprises transmitting, by a D2D transmitting UE, a first message requesting allocation of radio resources to be used for D2D communication to an eNB; receiving, by the D2D transmitting UE, a second message including radio resource allocation information from the eNB; and transmitting, by the D2D transmitting UE, data through a radio resource area allocated by the second message, wherein the data are transmitted to the eNB and at least one D2D receiving UE.

公开(公告)号：US10136428B2

公开(公告)日：2018-11-20

申请号：US15310081

申请日：2015-05-15

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo

IPC: H04W72/14 ,  H04W72/04 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: The present specification relates to a method in which a base station efficiently notifies a transmitting terminal of a resource domain for transmitting control information and data in a wireless communication system supporting device-to-device (D2D) communication. To this end, the transmitting terminal receives resource allocation information associated with D2D communication from the base station, and transmits, to a receiving terminal, control information (SA) for D2D communication and data corresponding to the SA on the basis of the resource allocation information received from the base station, wherein a time domain location for transmitting the SA has a predetermined time domain pattern on the basis of the resource allocation information received from the base station, and a frequency domain location for transmitting the SA can be determined in advance by one of two specific hopping patterns.