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.

公开(公告)号：US10075927B2

公开(公告)日：2018-09-11

申请号：US14383046

申请日：2013-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Daewon Seo ,  Hakseong Kim ,  Hanbyul Seo

IPC: H04W52/44 ,  H04W52/36 ,  H04W52/46 ,  H04W52/14 ,  H04W52/38 ,  H04W52/24 ,  H04W52/26

CPC classification number: H04W52/44 ,  H04W52/146 ,  H04W52/241 ,  H04W52/248 ,  H04W52/262 ,  H04W52/36 ,  H04W52/383 ,  H04W52/46

Abstract: Specifically, in one aspect of the present invention, a method and apparatus for controlling transmitting power by a terminal in a wireless communication system that supports device to device (D2D) communication include: receiving a power control command through a control channel from a base station; and adjusting transmitting power according to the power control command, wherein when the terminal performs D2D communication, the power control command indicates one of a first set of power control values having more states assigned to lower the transmitting power, and when the terminal performs communication with the base station, the power control command indicates one of a second set of power control values having more states assigned to raise the transmitting power.

公开(公告)号：US10070400B2

公开(公告)日：2018-09-04

申请号：US15514376

申请日：2015-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo

IPC: H04W52/38 ,  H04W72/14 ,  H04W72/04 ,  H04W76/04 ,  H04W52/36 ,  H04W52/32 ,  H04W76/28

Abstract: The present disclosure relates to a method for transmitting and receiving a device-to-device (D2D) signal in a wireless communication system supporting D2D communication, said method, performed by a terminal, comprising the steps of: transmitting a cellular signal on a first subframe of a first component carrier; transmitting a D2D signal on a second subframe of a second component carrier; and when overlapping occurs between the first subframe and the second subframe, dropping the transmission of the D2D signal or reducing transmit power of the D2D signal in a specific interval.

公开(公告)号：US10028264B2

公开(公告)日：2018-07-17

申请号：US15032915

申请日：2014-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Hakseong Kim

IPC: H04W4/08 ,  H04W72/04 ,  H04B7/26 ,  H04L5/00 ,  H04W8/00 ,  H04W72/12

Abstract: The present invention relates to a method and an apparatus for receiving control information of a terminal for device-to-device (D2D) ProSe in a wireless communication system. Specifically, the method comprises the steps of: receiving information on radio resources which are semi-statically configured for device-to-device proximity service (D2D ProSe); and receiving downlink control information (DCI) indicating whether or not D2D ProSe is activated on a specific radio resource of the radio resources, wherein the downlink control information is available only in a search procedure in which a resource for transmitting a terminal-specific search signal is allocated.

公开(公告)号：US09980281B2

公开(公告)日：2018-05-22

申请号：US15502178

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo

IPC: H04W72/12 ,  H04W52/04 ,  H04W72/04

CPC classification number: H04W72/1278 ,  H04W52/04 ,  H04W52/383 ,  H04W72/042 ,  H04W72/1289

Abstract: The present specification comprises the steps of: acquiring a resource pool to be used for D2D communication in a wireless communication system, the resource pool including a scheduling assignment (SA) resource pool indicating an SA transmission resource region and/or a data resource pool indicating a D2D data transmission resource region; transmitting an SA including information related to D2D data transmission to a second user equipment through the SA resource pool; and transmitting D2D data to the second user equipment, wherein the resource pool is received from a base station through a D2D grant, and the D2D grant includes first control information related to a transmission power control of the SA.

公开(公告)号：US09974097B2

公开(公告)日：2018-05-15

申请号：US14649130

申请日：2013-12-03

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Hanbyul Seo ,  Kijun Kim ,  Joonkui Ahn ,  Hakseong Kim

IPC: H04W72/04 ,  H04W74/00 ,  H04L27/26 ,  H04B7/06 ,  H04B7/208 ,  H04L1/16 ,  H04L1/18 ,  H04W88/00 ,  H04W88/08

CPC classification number: H04W74/002 ,  H04B7/0623 ,  H04B7/208 ,  H04L1/1671 ,  H04L1/1819 ,  H04L1/1822 ,  H04L27/2646 ,  H04W72/04 ,  H04W88/005 ,  H04W88/08

Abstract: A method for determining a transport block size in a wireless communication system, and an apparatus using the method are provided. The method comprises: determining the number of effective resource blocks; and determining the transport block size of data transmitted on a data channel according to the number of effective resource blocks. In addition, a method for transmitting ACK/NACK (acknowledgement/not-acknowledgement) is provided.

公开(公告)号：US09918350B2

公开(公告)日：2018-03-13

申请号：US14909653

申请日：2014-08-04

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Byounghoon Kim

IPC: H04W4/08 ,  H04W76/02 ,  H04W8/00 ,  H04W74/08 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04W76/14 ,  H04B7/0697 ,  H04L5/0005 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04W4/08 ,  H04W8/005 ,  H04W74/08

Abstract: The present invention relates to a wireless communication system. Particularly, the present invention relates to a method and device by which a terminal performs a discovery step for D2D communication in a wireless communication system, the method comprising the steps of: receiving a first discovery signal (DS) including identification information of a target terminal from a member terminal of a first terminal group; checking whether the target terminal belongs to the first terminal group; and transmitting a second DS corresponding to the first DS, wherein if the target terminal belongs to the first terminal group, the second DS is transmitted to member terminals within the first terminal group, and if the target terminal does not belong to the first terminal group, the second DS is transmitted to a specific terminal within a second group different from the first group.

公开(公告)号：US09887823B2

公开(公告)日：2018-02-06

申请号：US14783889

申请日：2014-05-07

Applicant: LG Electronics Inc.

Inventor： Hyukjin Chae ,  Hakseong Kim ,  Hanbyul Seo

IPC: H04L5/00 ,  H04L1/18 ,  H04L12/18

CPC classification number: H04L5/0055 ,  H04L1/1861 ,  H04L12/18

Abstract: One embodiment of the present invention relates to a method for transmitting and receiving signals between devices in a wireless communication system, the signal transmission and reception method comprising the steps of: receiving, by a first device, a signal from a second device; and transmitting, by the first device, a reception confirmation response to the signal, wherein a resource region in which the reception confirmation response is transmitted is differentiated according to whether the reception confirmation response is ACKnowledgement (ACK) or Negative ACKnowledgement (NACK), and the resource region in which the reception confirmation response is transmitted is commonly used for devices which have received the signal.

公开(公告)号：US09877267B2

公开(公告)日：2018-01-23

申请号：US15521258

申请日：2015-10-23

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

Inventor： Hakseong Kim ,  Seonik Seong ,  Kwangbok Lee ,  Sunghyun Choi

IPC: H04W4/00 ,  H04W40/32 ,  H04W40/10

CPC classification number: H04W40/32 ,  H04W8/005 ,  H04W40/10 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/23

Abstract: A method for terminal clustering in a wireless communication system supporting D2D (Device-to-Device) communication and an apparatus supporting the method are disclosed. More specifically, a method for a user equipment (UE) to perform UE clustering in a wireless communication system supporting D2D communication comprises determining an initial preference value, determining an initial preference triplet by performing an AP (Affinity Propagation) method by increasing or decreasing the preference value, updating a preference triplet through a GSS (Golden Section Search) method based on the initial preference triplet, determining a final preference value for minimizing energy consumption of the entire UEs from the updated preference triplet; and determining a head UE and member UEs belonging to the head UE by performing the AP method by using the final preference value.