公开(公告)号：US20180026682A1

公开(公告)日：2018-01-25

申请号：US15597286

申请日：2017-05-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seok SEO ,  Hyung Jin KIM ,  Jae Su SONG ,  Jung Hoon OH ,  Seong Chul CHO

IPC: H04B7/0417 ,  H04W72/04 ,  H04L1/06 ,  H04L25/02

CPC classification number: H04B7/0417 ,  H04B7/088 ,  H04L1/0631 ,  H04L25/0204 ,  H04L25/0256 ,  H04W72/0446 ,  H04W72/046

Abstract: A receiving device and method using a single RF chain includes a reception antenna module radiating a plurality of orthogonal beam patterns to receive a signal, a single RF chain processing a reception signal from the reception antenna module, a signal component extracting unit extracting a reception signal component corresponding to each beam pattern using the reception signal received through the reception antenna module and the single RF chain and a code value previously allocated to the plurality of beam patterns, and a beam pattern controller controlling a beam pattern radiated by the reception antenna module.

公开(公告)号：US20150009858A1

公开(公告)日：2015-01-08

申请号：US14271872

申请日：2014-05-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soojung JUNG ,  Seungkwon CHO ,  Hyung Jin KIM ,  Seokki KIM ,  Hyun LEE ,  Sung Cheol CHANG

IPC: H04W48/14

CPC classification number: H04W48/12 ,  H04L41/0806 ,  H04L45/02 ,  H04W48/16 ,  H04W84/18

Abstract: A discovery method is provided by a device in a D2D direction communication. The device selects a discovery resource unit from among discovery resource units which are not being used after listening during one or more discovery resource periods. The device transmits a first discovery signal through the selected discovery resource unit in a broadcasting manner at a first discovery resource period, and transmits a second discovery signal through the selected discovery resource unit in a query-based manner at a second discovery resource period.

Abstract translation: 发现方法由D2D方向通信中的设备提供。 设备从在一个或多个发现资源周期内的监听之后未被使用的发现资源单元中选择发现资源单元。 设备在第一发现资源周期以广播方式通过所选择的发现资源单元发送第一发现信号，并且在第二发现资源周期以基于查询的方式通过所选择的发现资源单元发送第二发现信号。

公开(公告)号：US20140376463A1

公开(公告)日：2014-12-25

申请号：US14309354

申请日：2014-06-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Jin KIM ,  Seungkwon CHO ,  Soojung JUNG ,  Seokki KIM ,  Hyun LEE ,  Sung Cheol CHANG

IPC: H04W76/02 ,  H04W74/08

CPC classification number: H04W76/023 ,  H04W8/00 ,  H04W8/005 ,  H04W52/02 ,  H04W56/002 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

Abstract: A D2D direct communication method is provided. The device sets at least one frame among a plurality of frames included in a superframe to a frame type 0 which is sectionized into a synchronization region for performing a synchronization procedure, a discovery region for discovering devices, a peering region for a connection, and a data region for scheduling of resources and data transmission. The device sets remaining frames among the plurality of frames to a frame type 1 which is sectionized into the synchronization region and the data region.

Abstract translation: 提供D2D直接通信方式。 设备将包括在超帧中的多个帧中的至少一个帧设置为帧类型0，帧类型0被划分为用于执行同步过程的同步区域，用于发现设备的发现区域，用于连接的对等区域，以及 数据区用于资源调度和数据传输。 该设备将多个帧中的剩余帧设置为被分成同步区域和数据区域的帧类型1。

公开(公告)号：US20140211781A1

公开(公告)日：2014-07-31

申请号：US14165017

申请日：2014-01-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Jin KIM ,  Chanho YOON ,  Soojung JUNG ,  Sung Kyung KIM ,  Seungkwon CHO ,  Sung Cheol CHANG ,  DongSeung KWON

IPC: H04W56/00

CPC classification number: H04W56/0025 ,  H04W4/70 ,  H04W56/002

Abstract: A synchronization method by a device is provided in a device-to-device direct communication. The device receives synchronization signals from a plurality of other devices at a current frame, and estimates a synchronization time at a next frame based on the synchronization signals received from the other devices.

Abstract translation: 在设备到设备的直接通信中提供了设备的同步方法。 设备在当前帧从多个其他设备接收同步信号，并且基于从其他设备接收到的同步信号来估计下一帧的同步时间。

公开(公告)号：US20140071916A1

公开(公告)日：2014-03-13

申请号：US14022797

申请日：2013-09-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chanho YOON ,  Hyung Jin KIM ,  Seungkwon CHO ,  Sung Kyung KIM ,  Soojung JUNG ,  Sung Cheol CHANG

IPC: H04W8/00

CPC classification number: H04W8/005 ,  H04L5/0053 ,  H04L27/2602

Abstract: A device transmits a discovery signal including identification information of the device in an empty discovery slot among a plurality of discovery slots of a discovery interval. The discovery signal includes two orthogonal frequency division multiplexing (OFDM) symbols. One of the two orthogonal frequency division multiplexing (OFDM) symbols includes at least one tone. The identification information of the device is displayed by a position of a subcarrier corresponding to the at least one tone.

Abstract translation: 设备在发现间隔的多个发现时隙中的空发现时隙中发送包括设备的标识信息的发现信号。 发现信号包括两个正交频分复用（OFDM）符号。 两个正交频分复用（OFDM）符号之一包括至少一个音调。 通过与至少一个音调对应的副载波的位置来显示设备的识别信息。