公开(公告)号：US09635535B2

公开(公告)日：2017-04-25

申请号：US14097751

申请日：2013-12-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Mo Moon ,  Jee Hyeon Na ,  Dae Ik Kim ,  Woo Goo Park

IPC: H04L5/14 ,  H04J3/00 ,  H04W8/00

CPC classification number: H04W8/005

Abstract: Disclosed is a proximity measurement method and apparatus for device-to-device (D2D) communication in a mobile communication system. The proximity measurement method may include determining whether a cell identification (ID) is included in a packet received from a gateway, verifying whether the cell ID matches a pre-stored cell ID when the cell ID is included, extracting, from the packet, Internet Protocol addresses of mobile terminals transmitting and receiving the packet when the cell ID matches the pre-stored cell ID, searching for IP addresses matched to the extracted IP addresses based on a proximity list including IP addresses of mobile terminals performing D2D communication, and registering, when the extracted IP addresses are absent in the proximity list, the extracted IP addresses in the proximity list and measuring proximity between the mobile terminals.

公开(公告)号：US09294957B2

公开(公告)日：2016-03-22

申请号：US14102151

申请日：2013-12-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Do Hyun Park ,  Woo Goo Park

IPC: H04W28/02 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W28/0278 ,  H04L5/0073 ,  H04W72/1284

Abstract: Disclosed is a method and apparatus for resource allocation based on a buffer status in a neighboring cell. A method of allocating a resource between base stations may include receiving, by a first base station, information associated with a buffer status of a second base station, comparing information associated with a buffer status of the first base station to the information associated with the buffer status of the second base station, and relatively allocating a resource based on a result of the comparison.

Abstract translation: 公开了一种基于相邻小区中的缓冲器状态的资源分配的方法和装置。 在基站之间分配资源的方法可以包括：由第一基站接收与第二基站的缓冲器状态相关联的信息，将与第一基站的缓冲器状态相关联的信息与与缓冲器相关联的信息进行比较 第二基站的状态，并且基于比较的结果相对地分配资源。

公开(公告)号：US09398601B2

公开(公告)日：2016-07-19

申请号：US14097949

申请日：2013-12-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jee Hyeon Na ,  Jung Mo Moon ,  Dae Ik Kim ,  Sang Ho Lee ,  Woo Goo Park

IPC: H04W72/00 ,  H04W72/12

CPC classification number: H04W72/121

Abstract: Disclosed is a method and apparatus for scheduling in a cellular-based device-to-device (D2D) communication. The method of scheduling a cellular resource used in a base station for a D2D communication between terminals may include grouping, by a proximity coordinator, a cellular resource of an adjacent base station based on cell information of a base station, managing a resource to be allocated to the terminal and a resource allocated previously to the terminal based on the grouped resource, and allocating the grouped resource to the terminal based on information associated with the resource to be allocated and the previously allocated resource when a request for D2D communication between terminals located in different cells is received.

Abstract translation: 公开了一种用于在基于蜂窝的设备到设备（D2D）通信中进行调度的方法和装置。 在基站中使用的用于终端之间的D2D通信的蜂窝资源的调度方法可以包括基于基站的小区信息来由邻近协调器对相邻基站的蜂窝资源进行分组，管理要分配的资源 基于分组的资源向终端和先前分配给终端的资源，并且当位于位于终端中的终端之间的D2D通信的请求时，基于与要分配的资源相关联的信息和先前分配的资源，将分组的资源分配给终端 收到不同的信元。

公开(公告)号：US10582430B2

公开(公告)日：2020-03-03

申请号：US15679420

申请日：2017-08-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Woo Goo Park

IPC: H04W4/00 ,  H04W36/06 ,  H04W36/00 ,  G05D1/00 ,  B64C39/02 ,  H04W36/32

Abstract: An operation method of an unmanned aerial vehicle terminal. The unmanned aerial vehicle terminal generates a beam table by using first information on a plurality of beams transmitted by a first transmission point. The unmanned aerial vehicle terminal monitors whether conditions for beam switching are satisfied. The unmanned aerial vehicle terminal determines a target location based on the beam table when the conditions for the beam switching are satisfied. The unmanned aerial vehicle terminal moves to the target location. In addition, the unmanned aerial vehicle terminal updates the beam table depending on whether beam table update conditions are satisfied.

公开(公告)号：US09374683B2

公开(公告)日：2016-06-21

申请号：US14097876

申请日：2013-12-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang Ho Lee ,  Jee Hyeon Na ,  Dae Ik Kim ,  Jung Mo Moon ,  Woo Goo Park

IPC: H04W4/00 ,  H04W4/06 ,  H04W76/02

CPC classification number: H04W4/06 ,  H04W4/80 ,  H04W76/14

Abstract: Disclosed is a method and an apparatus for device-to-device (D2D) multicast communication in a cellular mobile communication system. The method for D2D communication may include transmitting a server designation request message requesting registration as a server terminal to a base station, and transmitting service information using a D2D multicast or broadcast communication scheme based on a radio resource allocated by the base station.

Abstract translation: 公开了一种蜂窝移动通信系统中的设备到设备（D2D）多播通信的方法和装置。 D2D通信方法可以包括向基站发送请求登记为服务器终端的服务器指定请求消息，并且使用基于由基站分配的无线资源的D2D多播或广播通信方式来发送服务信息。

公开(公告)号：US09173179B2

公开(公告)日：2015-10-27

申请号：US13735257

申请日：2013-01-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Mo Moon ,  Woo Goo Park

IPC: H04J3/06 ,  H04W56/00 ,  H04W4/06

CPC classification number: H04W56/00 ,  H04W4/06

Abstract: There is provided a method for synchronization between one or more base stations to provide broadcast multicast service, including: receiving a session start request message, and extracting a service start setting time set to start broadcast service from the session start request message; comparing the service start setting time to a modification check time being a check time which is later than and closest to the service start setting time, among check times at which it is determined whether or not broadcast service has changed, the check times having a predetermined time interval; deciding, when the modification check time is later than the service start setting time by a predetermined internal slack time period or more, the modification check time as a service start time at which broadcast service starts; and transmitting information indicating the service start time to the base stations.

Abstract translation: 提供了一种用于一个或多个基站之间的同步以提供广播多播服务的方法，包括：接收会话开始请求消息，并从会话开始请求消息中提取设置为开始广播服务的服务开始设置时间; 在确定广播服务是否改变的检查时间中，将服务开始设置时间与作为服务开始设置时间之后的最接近的检查时间的修改检查时间进行比较，所述检查时间具有预定的 时间间隔; 当修改检查时间比服务开始设定时间晚于预定的内部松弛时间段或更长时间，作为广播服务开始的服务开始时间的修改检查时间; 以及向基站发送指示服务开始时间的信息。