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    • 1. 发明公开
    • FDD 모드로 동작하는 거대 MIMO 시스템에서 채널상태정보 기준신호를 전송하고 수신하기 위한 송수신 장치 및 방법
    • 用于发送和接收用于基于多输入多输出系统的无线通信系统的信道状态信息参考信号的方法和装置
    • KR1020130075140A
    • 2013-07-05
    • KR1020110143377
    • 2011-12-27
    • 삼성전자주식회사한국교통대학교산학협력단
    • 문철김윤선이주호조준영김기일이효진
    • H04B7/04H04J11/00
    • H04W72/04H04B7/0617H04B7/0626H04B7/0695H04L1/0003H04L1/0009H04L1/0026H04L1/06H04L5/0023H04L5/0048H04L5/0091H04L5/143H04L1/00H04L5/00H04L25/0224H04W72/046
    • PURPOSE: A transmitting and receiving device for transmitting and receiving channel state information reference signals at a giant multiple input multiple output system operating in a frequency division duplex mode and a method thereof are provided to effectively transmit the channel information of various antennas and enable a receiving device to effectively estimate downlink channel state information using only downlink resources of limited amount. CONSTITUTION: A control part (1030) generates a signal for each beam to be transmitted through each antenna port. The control part forms the beam by precoding the signal for the each beam generated through a beam forming vector. The control part separates the resource reusing groups of an arbitrary number through grouping beams which is sharing the same resources of the formed beam. The control part transmits the beam to a receiving device by allocating the resource by the resource reusing group. The control part allocates the resources by determining the beam in which a transmitting device has a maximum benefit using feedback information transmitted from the receiving device. [Reference numerals] (1010) Wireless communication part; (1020) Storage part; (1030) Control part; (1031) Signal generation part by beams; (1032) Precoding part; (1033) Scheduler
    • 目的:提供一种在频分双工模式下工作的巨型多输入多输出系统上发送和接收信道状态信息参考信号的发送和接收设备及其方法,以有效发送各种天线的信道信息,并使接收 设备仅使用有限量的下行链路资源来有效地估计下行链路信道状态信息。 构成:控制部件(1030)为每个通过每个天线端口传输的波束产生信号。 控制部分通过预编码通过波束形成矢量产生的每个波束的信号来形成波束。 控制部分通过共享成形光束的相同资源的分组光束来分离任意数量的资源重用组。 控制部分通过资源重用组分配资源将光束发送到接收装置。 控制部分通过使用从接收装置发送的反馈信息确定发送装置具有最大利益的波束来分配资源。 (附图标记)(1010)无线通信部; (1020)储存部分; (1030)控制部分; (1031)信号发生部分由光束; (1032)预编码部分; (1033)排程
    • 6. 发明公开
    • FDD 모드로 동작하는 Massive MIMO를 사용하는 무선통신 시스템에서 제한된 정보량을 이용하여 채널 상태 정보를 피드백 하기 위한 장치 및 방법
    • 用于基于频域分组双工无线通信的基于MIMO系统的信道状态信息的有限反馈的方法和装置
    • KR1020130075311A
    • 2013-07-05
    • KR1020110143631
    • 2011-12-27
    • 삼성전자주식회사한국교통대학교산학협력단
    • 김기일김윤선이주호조준영이효진문철
    • H04B7/04
    • H04W24/02H04B7/0417H04B7/0478H04B7/0639H04L5/0023H04L25/0204H04W16/28H04W72/085H04B7/0626
    • PURPOSE: A device and a method thereof for giving channel state information (CSI) feedback by using the limited amount of information in a wireless communication system using a massive multiple-input multiple-output (MIMO) operating in a frequency division duplex (FDD) mode are provided for a mobile station to effectively give a base station feedback of the CSI by using the limited amount of feedback information. CONSTITUTION: A control part (620) selects a beam index having a maximum result value by comparing arbitrary function result values having channel coefficients of N as an input. The control part selects a beam index which is above a threshold value which is the constant value of the maximum result value among the function result values. The control part includes the selected beam index in a valid beam index aggregation. The control part estimates channel state information for the valid beam index aggregation. The control part controls a wireless communication part to give a base station feedback of the estimated channel state information and the valid beam index aggregation. [Reference numerals] (610) Wireless communication part; (620) Control part; (623) Channel state estimation part; (625) Valid beam index determination part; (627) Feedback information producing part; (630) Storing part
    • 目的:一种使用在频分双工(FDD)中操作的大量多输入多输出(MIMO)的无线通信系统中使用有限量的信息来提供信道状态信息(CSI)反馈的装置及其方法, 为移动台提供了通过使用有限量的反馈信息来有效地给出基站对CSI的反馈的模式。 构成:控制部分(620)通过比较具有N的信道系数的任意函数结果值作为输入来选择具有最大结果值的波束索引。 控制部选择作为功能结果值之中的最大结果值的常数值的阈值以上的光束索引。 控制部分包括有效波束索引聚合中所选择的波束索引。 控制部分估计有效波束索引聚合的信道状态信息。 控制部分控制无线通信部分,以给基站估计信道状态信息和有效波束索引聚合的反馈。 (附图标记)(610)无线通信部; (620)控制部分; (623)信道状态估计部分; (625)有效波束指标确定部分; (627)反馈信息生成部分; (630)存储部分
    • 7. 发明公开
    • 용융금속 회전저항 계측시스템 및 그 방법
    • 用于旋转电阻的金属的系统和测量方法
    • KR1020070120838A
    • 2007-12-26
    • KR1020060055615
    • 2006-06-20
    • 한국교통대학교산학협력단한국지질자원연구원
    • 이정일박형규박진태이후인김준수이주호김영호홍태환
    • G01N11/14G01B7/00
    • A system and a method for measuring rotation resistance of molten metal are provided to detect viscosity changed after mixing of molten metal and a mixed material in real time by rotating a stirrer at a predetermined speed and by measuring surface friction resistance between the stirrer and the molten metal. A system for measuring rotation resistance of molten metal including an alloy manufacturer equipped with a furnace heating a crucible, the crucible filled with molten metal and a mixing material and a stirrer stirring molten metal with the mixing material, comprises: a stirrer(7) rotatably stirring molten metal inside the crucible, a coupling(8) connecting a motor shaft with a shaft of the stirrer, a servo-motor(9) controlling a rotation speed of the stirrer, a funnel(11) installed in an upper portion of the hollow shaft, which puts powder or chip-type components for mixed alloy to molten metal through the stirrer, a fixing jig(12) fixing the servo-motor, a thermocouple which is a temperature measurer used for maintaining a temperature of the furnace, a thermocouple which is a temperature measurer used for maintaining a temperature of the crucible, a controller equipped with a servo-motor driver, a temperature control indicator, an electric furnace controller and so on, and a data acquisition system connected with the controller, which includes a computer and software for acquiring and storing acquisition data.
    • 提供一种用于测量熔融金属的旋转阻力的系统和方法,以通过以预定速度旋转搅拌器并通过测量搅拌器和熔融物之间的表面摩擦阻力来实时检测熔融金属和混合材料混合后的粘度变化 金属。 一种用于测量熔融金属的旋转阻力的系统,包括装配有加热坩埚的炉的合金制造商,填充有熔融金属的坩埚和混合材料以及与混合材料一起搅拌熔融金属的搅拌器的系统,包括:搅拌器(7) 在坩埚内搅拌熔融金属,将马达轴与搅拌器的轴连接的联轴器(8),控制搅拌器转速的伺服马达(9),安装在搅拌器的上部的漏斗(11) 空心轴,其通过搅拌器将用于混合合金的粉末或片状部件用于熔融金属,固定伺服电动机的固定夹具(12),作为用于保持炉的温度的温度测量器的热电偶, 热电偶,其是用于维持坩埚温度的温度测量器,配备有伺服电动机驱动器,温度控制指示器,电炉控制器等的控制器,以及数据采集 与控制器连接的系统系统,包括用于获取和存储采集数据的计算机和软件。
    • 8. 发明授权
    • 합금제조용 혼입재 투입장치
    • 합금제조용재투입장치
    • KR100736713B1
    • 2007-07-09
    • KR1020060055616
    • 2006-06-20
    • 한국교통대학교산학협력단한국지질자원연구원
    • 이정일박형규박진태이후인김준수이주호김영호홍태환
    • B22D27/20B22D21/04
    • A mixing material injection system is provided to uniformly improve the structure of a mixture of molten metal and a mixing material, and prepare a material with excellent physical properties and mechanical properties by injecting powder or chips of a component that is mixed with molten metal during stirring into molten metal. An injection system of a mixing material for alloy manufacturing comprises a stirrer(7), a shaft connecting coupling(8), a servo motor(9), a funnel(11), and a fixing jig(12), wherein a semicircular cross-sectional shaped helix is processed in a hollow portion of the servo motor from a rotational direction to a downward direction to promptly inject a powder or chip type component into molten metal inside a crucible(5) along a spiral steel wire without loss of the component such that the component is mixed with the molten metal, and vanes with width corresponding to 1/2 hollow cross-sectional shaped diameter of the stirrer are attached to an inner part of a hollow shaped stirrer to accurately compare and detect viscosity changes of molten metal by promptly stirring molten metal and an input component, thereby increasing the rotary resistance.
    • 提供混合材料注入系统以均匀地改善熔融金属和混合材料的混合物的结构,并且通过在搅拌期间注入与熔融金属混合的组分的粉末或碎片来制备具有优异物理性质和机械性能的材料 进入熔融金属。 一种用于合金制造的混合材料注射系统,包括搅拌器(7),轴连接接头(8),伺服电机(9),漏斗(11)和固定夹具(12),其中半圆形横截面 - 在伺服马达的中空部分中从旋转方向向下方向加工截面形状的螺旋,以便沿着螺旋钢丝迅速地将钽粉末或碎片型部件沿着螺旋钢丝注入坩埚(5)内的熔融金属中而不损失部件 使得该组分与熔融金属混合,并将具有与搅拌器的1/2空心横截面直径相对应的宽度的叶片附接到中空形搅拌器的内部部分,以准确地比较和检测熔融金属的粘度变化 通过迅速搅拌熔融金属和输入部件,从而增加旋转阻力。