公开(公告)号：US09930679B2

公开(公告)日：2018-03-27

申请号：US15119330

申请日：2015-02-16

Applicant: LG ELECTRONICS INC. ,  SNU R&DB FOUNDATION

Inventor： Hakseong Kim ,  Sunghyun Choi ,  Jongwoo Hong

IPC: H04W4/00 ,  H04W72/08 ,  H04J11/00 ,  H04B17/318 ,  H04B17/336 ,  H04W56/00 ,  H04W76/02

CPC classification number: H04W72/082 ,  H04B17/318 ,  H04B17/336 ,  H04J11/0026 ,  H04W56/002 ,  H04W76/14

Abstract: The present invention discloses a method for reducing interference in a wireless communication system supporting D2D communication and an apparatus for the method. More specifically, in a wireless communication system supporting Device-to-Device (D2D) communication, a method for reducing interference in D2D communication comprises receiving, by a user equipment (UE), a D2D signal; determining, by the UE, whether interference is generated from resources in which the D2D signal has been transmitted; and in case it is determined that interference is generated from the resources in which the D2D signal has been transmitted, transmitting, by the UE, interference resource information for indicating that interference has been generated from the resources in which the D2D signal has been transmitted.

公开(公告)号：US09854424B2

公开(公告)日：2017-12-26

申请号：US15026192

申请日：2014-10-31

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

Inventor： Hakseong Kim ,  Seungil Park ,  Sunghyun Choi ,  Byounghoon Kim ,  Hanbyul Seo

IPC: H04B7/00 ,  H04W8/00 ,  H04W48/16 ,  H04W76/02 ,  H04W72/04 ,  H04W4/00 ,  H04W36/00 ,  H04W40/00 ,  H04W72/00

CPC classification number: H04W8/005 ,  H04W48/16 ,  H04W72/04 ,  H04W76/14

Abstract: This specification provides a method for performing a discovery procedure in a wireless communication system supporting device to device (D2D) communication. The method is performed by first user equipment and includes monitoring a discovery resource region, selecting a discovery resource for sending a discovery message in the discovery resource region, and transmitting the discovery message to second user equipment through the selected discovery resource. The discovery resource region includes a first discovery resource region and a second discovery resource region.

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.

公开(公告)号：US20150282143A1

公开(公告)日：2015-10-01

申请号：US14434368

申请日：2013-10-08

Applicant: LG ELECTRONICS INC. ,  SNU R&DB FOUNDATION

Inventor： Hakseong Kim ,  Kwangbok Lee ,  Jongwoo Hong ,  Sunghyun Choi ,  Kyungsoo Kim ,  Seonik Seong

IPC: H04W72/04 ,  H04W8/00 ,  H04L12/743 ,  H04W40/24 ,  H04W76/02

CPC classification number: H04W72/042 ,  H04L43/0864 ,  H04L45/7453 ,  H04W4/08 ,  H04W8/005 ,  H04W40/244 ,  H04W40/246 ,  H04W48/16 ,  H04W72/0406 ,  H04W74/0833 ,  H04W76/021 ,  H04W76/11 ,  H04W76/14 ,  H04W76/27 ,  H04W88/08

Abstract: The present invention provides a method and apparatus for performing device-to-device communication in a wireless communication system. The method includes generating identification information of a D2D user equipment that supports the D2D communication as identification information for D2D discovery using a hash function, the identification information for discovery includes information of a first length for indicating a division region of the beacon signals and information of a second length included in the beacon. The information of a first length and the information of a second length are smaller than identification information of the D2D user equipment. Accordingly, by performing discovery for the D2D user equipment through the identification information having shorter length than prior art, and performing discovery in a range where the discovery is available through the region in which the beacon signals are allocated, advantages of performing the D2D discovery effectively are provided.

Abstract translation: 本发明提供了一种用于在无线通信系统中执行设备到设备通信的方法和装置。 该方法包括：使用散列函数生成支持D2D通信的D2D用户设备的识别信息作为用于D2D发现的标识信息，用于发现的识别信息包括用于指示信标信号的分割区域的信息和信息的信息 包括在信标中的第二长度。 第一长度的信息和第二长度的信息小于D2D用户设备的识别信息。 相应地，通过利用比现有技术更短的识别信息对D2D用户设备进行发现，并且通过分配了信标信号的区域在可用的发现范围内执行发现，有效地执行D2D发现 被提供。