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    • 34. 发明公开
    • 다중 셀 환경에서 대규모 안테나를 이용한 통신 방법
    • 在多个细胞环境中使用大规模天线进行通信的方法
    • KR1020140148327A
    • 2014-12-31
    • KR1020140074726
    • 2014-06-19
    • 한국전자통신연구원
    • 남준영안재영
    • H04B7/02H04B7/26H04W16/24H04W72/12
    • H04B7/0452H04B7/0645H04W16/24H04W72/1231
    • Disclosed is a communication method using a large-scale antenna in a multi-cell environment. A base station classifies a plurality of terminals within a cell into a cell-centered terminal group and a cell-boundary terminal group according to a preset reference, transmits downlink pilot signals to each of the classified groups, receives a first precoding matrix indicator (PMI) regarding a cell to which each terminal belongs from each terminal belonging to the cell-boundary terminal group and a second PMI regarding an interference signal from an adjacent cell, and subsequently generates interference information between multiple cells on the basis of the first PMI and the second PMI. Thus, information exchange through controlling interference between base stations can be minimized.
    • 公开了一种在多小区环境中使用大规模天线的通信方法。 基站将小区内的多个终端根据预先设定的基准将小区中心终端组和小区边界终端组进行分类,向每个分类组发送下行链路导频信号,接收第一预编码矩阵指示符(PMI )关于属于所述小区边界终端组的每个终端的每个终端所属的小区以及关于来自相邻小区的干扰信号的第二PMI,并且随后基于所述第一PMI和所述第二PMI生成多个小区之间的干扰信息 第二PMI。 因此,通过控制基站之间的干扰的信息交换可以被最小化。
    • 36. 发明公开
    • 다중 안테나를 이용한 신호 전송 방법
    • 使用多个天线发射信号的方法
    • KR1020140089312A
    • 2014-07-14
    • KR1020140000080
    • 2014-01-02
    • 한국전자통신연구원
    • 예충일안재영
    • H04B7/06
    • H04B7/0645H04B7/0413H04B7/063
    • Disclosed is a method for transmitting a signal using multiple antennas. A base station transmits a reference signal using a plurality of beams which are formed using respective multiple antenna groups; receives a first precoder matrix index (PMI-1) and a second precoder matrix index (PMI-2) corresponding to the reference signal from a terminal; and performs precoding of a downlink transmission signal based on a first precoder corresponding to the first precoder matrix index and a second precoder corresponding to the second precoder matrix index. Therefore, the present invention can increase the capacity of a system.
    • 公开了一种使用多个天线发送信号的方法。 基站使用使用相应的多个天线组形成的多个波束来发送参考信号; 从终端接收对应于参考信号的第一预编码器矩阵索引(PMI-1)和第二预编码器矩阵索引(PMI-2); 并且基于与第一预编码器矩阵索引对应的第一预编码器和对应于第二预编码器矩阵索引的第二预编码器执行下行链路传输信号的预编码。 因此,本发明可以增加系统的容量。
    • 37. 发明公开
    • 무선 통신시스템에서 제어 채널 송수신 방법
    • 无线通信系统中传输和接收控制信息的方法
    • KR1020140083945A
    • 2014-07-04
    • KR1020140064534
    • 2014-05-28
    • 한국전자통신연구원
    • 노태균안재영
    • H04B7/26
    • H04W72/042H04L5/0007H04L5/0048H04L5/0053H04L5/0057H04L5/0094H04W76/27H04W88/08H04B7/2612
    • Provided is a communication system for transmitting a control channel using a downlink. The communication system transmits information on the transfer of uplink allocation information representing whether uplink allocation information is transmitted, to a terminal using a downlink and the terminal determines whether or not a downlink frame includes uplink allocation information on the basis of the information on the transfer of the uplink allocation information. In addition, a base station transmits information on resources to the terminal through which a downlink physical control channel can be transmitted; and the terminal decodes a downlink control channel only within available resources through which a downlink physical control channel can be transmitted.
    • 提供了一种用于使用下行链路发送控制信道的通信系统。 通信系统将表示上行链路分配信息的上行链路分配信息的传送的信息发送到使用下行链路的终端,并且终端基于关于传输的信息来确定下行链路帧是否包括上行链路分配信息 上行分配信息。 另外,基站向能够发送下行物理控制信道的终端发送资源信息, 并且终端仅在可以发送下行链路物理控制信道的可用资源内解码下行链路控制信道。
    • 38. 发明公开
    • 단말 간 직접 통신을 위한 디스커버리 방법 및 장치
    • 发现设备与设备之间的通信的方法
    • KR1020140065356A
    • 2014-05-29
    • KR1020130141840
    • 2013-11-21
    • 한국전자통신연구원
    • 예충일안재영고영조서방원노태균이경석임민중강충구
    • H04W48/16
    • H04W48/16H04W4/06H04W76/14
    • A method and a device of discovery for device-to-device communications are provided. The discovery method includes a step of transmitting a discovery request message for discovering a neighboring terminal; a step of receiving a response message which is a response to the discovery request message from at least one neighboring terminal; a step of forming a communications link with a first neighboring terminal, which has the shortest distance from a searching terminal, among at least one neighboring terminal based on the discovery response message; a step of receiving neighboring terminal information from the first neighboring terminal through the communications link; and a step of obtaining information of terminal which is neighboring the searching terminal based on the neighboring terminal information.
    • 提供了一种用于设备到设备通信的方法和设备。 发现方法包括发送用于发现相邻终端的发现请求消息的步骤; 从至少一个相邻终端接收作为对所述发现请求消息的响应的响应消息的步骤; 基于所述发现响应消息,在至少一个相邻终端中形成与搜索终端具有最短距离的第一相邻终端的通信链路的步骤; 通过通信链路从第一相邻终端接收相邻终端信息的步骤; 以及基于相邻终端信息获取与搜索终端相邻的终端的信息的步骤。