公开(公告)号：KR1020150043980A

公开(公告)日：2015-04-23

申请号：KR1020140136188

申请日：2014-10-08

Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

Inventor： 김형진 ,  김석기 ,  장성철 ,  최지훈 ,  김현수 ,  배지민

IPC: H04J11/00

CPC classification number: H04J11/0023

Abstract: 근접인지통신시스템에서의통신방법및 이를이용한송수신장치가제공된다. 송신장치가채널점유를알리는차단신호를생성하고, 프리앰블신호를포함하는메시지신호가전송되지않은구간을통하여차단신호를전송한다. 차단신호의전송을위한부반송파와프리앰블신호의전송을위한부반송파가서로다르다.

Abstract translation: 本发明提供了一种对等感知通信系统中的通信方法和使用该通信方法的发送/接收设备。 根据本发明，发送装置生成用于通知信道占用的阻塞信号，然后通过不发送包括前同步信号的消息信号的周期来发送阻塞信号。 用于发送阻塞信号的子载波不同于用于发送前导码信号的子载波。

公开(公告)号：KR1020120129815A

公开(公告)日：2012-11-28

申请号：KR1020120052940

申请日：2012-05-18

Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

Inventor： 장성철 ,  김은경 ,  이현 ,  김성경 ,  김원익 ,  윤철식 ,  임광재 ,  정영호 ,  윤미영 ,  최지훈 ,  김석기

IPC: H04L27/26 ,  H04B7/24

CPC classification number: H04W56/002 ,  H04W56/0035

Abstract: PURPOSE: A method for performing direct communications between terminals and the terminal supporting the same are provided to obtain synchronization between the terminals performing direct communications by improving a synchronization channel structure. CONSTITUTION: Direct communications is performed with one or more second terminals using allocated resources for the direct communications between terminals. The resources include a synchronous channel which is used for frequency synchronization and time synchronization between the terminals. The synchronization channel includes a synchronization channel preamble which is used for either preamble detection, time offset estimation, frequency offset estimation, or channel estimation. The synchronization channel preamble is either a first sequence repeating a basic pattern or a second sequence combining the basic pattern with a pattern multiplying the basic pattern by (-1). One or more OFDM(orthogonal frequency division multiplexing) symbols are used for transmitting the synchronization channel preamble.

Abstract translation: 目的：提供终端与支持终端之间的直接通信的方法，以通过改善同步信道结构来实现直接通信的终端之间的同步。 构成：使用分配的资源对一个或多个第二终端进行直接通信，用于终端之间的直接通信。 该资源包括用于频率同步和终端之间的时间同步的同步信道。 同步信道包括用于前导码检测，时间偏移估计，频率偏移估计或信道估计的同步信道前同步码。 同步信道前导码是重复基本模式的第一序列或将基本模式与将基本模式相乘的模式（-1）组合的第二序列。 一个或多个OFDM（正交频分复用）符号用于发送同步信道前导码。