公开(公告)号：US20160191137A1

公开(公告)日：2016-06-30

申请号：US14982618

申请日：2015-12-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Seog SONG ,  Jun Hwan LEE ,  Juho PARK ,  Joonwoo SHIN ,  Eun-Young CHOI

IPC: H04B7/06 ,  H04L27/26

CPC classification number: H04B7/0632 ,  H04B7/0617 ,  H04L5/0048 ,  H04L27/2613

Abstract: A method in which a base station transmits pilot signals in a multiple-antenna communication system is provided. The base station includes some of the plurality of pilot signals distinguished by at least one of time domain symbols, subcarriers, and orthogonal codes in a first set to which a first random number is applied. The base station includes the remaining pilot signals, excluding the pilot signals that are included in the first set, in a second set that uses the same resources as used by the first set and to which a second random number different from the first random number is applied. The base station transmits at least one of the pilot signals that belong to the first set and the second set.

Abstract translation: 提供了一种在多天线通信系统中基站发送导频信号的方法。 基站包括通过应用第一随机数的第一集合中的时域符号，子载波和正交码中的至少一个来区分的多个导频信号中的一些。 基站包括除了第一组中包括的导频信号之外的剩余导频信号，该第二组使用与第一组使用的资源相同的资源，并且与第一随机数不同的第二随机数 应用。 基站发送属于第一组和第二组的导频信号中的至少一个。

公开(公告)号：US20150163008A1

公开(公告)日：2015-06-11

申请号：US14562422

申请日：2014-12-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Cheulsoon KIM ,  Young Jo KO ,  Sung-Hyun MOON ,  Joonwoo SHIN ,  Jae Young AHN

IPC: H04J11/00 ,  H04L5/00 ,  H04W48/16

CPC classification number: H04J11/0069 ,  H04B17/309 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0057 ,  H04W48/16 ,  H04W52/325

Abstract: A terminal measures quality of a radio link by using at least one first orthogonal frequency division multiplexing (OFDM) symbol among OFDM symbols excluding an OFDM symbol including a channel state information (CSI)-reference signal (RS).

Abstract translation: 终端通过在除了包括信道状态信息（CSI）参考信号（RS）的OFDM符号之外的OFDM符号中使用至少一个第一正交频分复用（OFDM）符号来测量无线电链路的质量。

公开(公告)号：US20150215856A1

公开(公告)日：2015-07-30

申请号：US14603968

申请日：2015-01-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Cheulsoon KIM ,  Young Jo KO ,  Joonwoo SHIN ,  Sung-Hyun MOON

IPC: H04W48/16 ,  H04W24/08

CPC classification number: H04W48/16 ,  H04W24/08 ,  H04W84/045

Abstract: In an environment in which a macrocell and a plurality of small cells exist, a terminal receives a discovery signal from a first small cell adjacent to the terminal among the plurality of small cells. When the first small cell is in a predetermined state, the terminal measures RRM of the first small cell based on the discovery signal.

Abstract translation: 在存在宏小区和多个小小区的环境中，终端从多个小小区中的与终端相邻的第一小区接收发现信号。 当第一小区处于预定状态时，终端基于发现信号测量第一小区的RRM。

公开(公告)号：US20160183290A1

公开(公告)日：2016-06-23

申请号：US14909415

申请日：2014-07-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jo KO ,  Sung-Hyun MOON ,  Cheulsoon KIM ,  Joonwoo SHIN ,  Jae Young AHN

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W52/36

CPC classification number: H04W72/1284 ,  H04L1/1822 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1887 ,  H04L5/0055 ,  H04W52/365 ,  H04W88/02 ,  H04W88/08

Abstract: In a wireless communication system which supports dual connection between a terminal and at least two base stations, a terminal provides an uplink transmission method based on uplink scheduling information, and a base station provides an uplink scheduling method for sharing information on a type of subframe and allocating an uplink resource.

Abstract translation: 在支持终端和至少两个基站之间的双连接的无线通信系统中，终端基于上行调度信息提供上行传输方法，基站提供用于共享关于子帧类型的信息的上行调度方法， 分配上行资源。

公开(公告)号：US20150223213A1

公开(公告)日：2015-08-06

申请号：US14615970

申请日：2015-02-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Hyun MOON ,  Young Jo KO ,  Cheulsoon KIM ,  Joonwoo SHIN

IPC: H04W72/04 ,  H04W52/54 ,  H04L5/00

CPC classification number: H04W52/54 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0051 ,  H04W52/325 ,  H04W52/34 ,  H04W52/40 ,  H04W72/1289

Abstract: A method for transmitting a sounding reference signal (SRS) by a terminal in an environment in which a first carrier corresponding to a first serving cell and a second carrier corresponding to a second serving cell are aggregated is provided. The terminal receives first downlink control information (DCI) which is used for downlink scheduling and includes a first transmit power control (TPC) command through the first serving cell. The terminal controls transmit power of the SRS based on the first TPC command for transmit power control of the SRS. Next, the terminal transmits the SRS through the second serving cell using the controlled transmit power.

Abstract translation: 提供了一种在与第一服务小区对应的第一服务小区和与第二服务小区对应的第二载体对应的第一载波聚合的环境中由终端发送探测参考信号（SRS）的方法。 终端接收用于下行链路调度的第一下行链路控制信息（DCI），并且包括通过第一服务小区的第一发射功率控制（TPC）命令。 终端基于用于SRS的发射功率控制的第一TPC命令来控制SRS的发射功率。 接下来，终端通过受控发送功率通过第二服务小区发送SRS。