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    • 2. 发明公开
    • 상향링크 공간분할 다중접속 기반 통신시스템에서 인접 섹터간 간섭을 억제하기 위한 장치 및 방법
    • 用于控制上传通信SDMA的通信系统中的互联干扰的装置和方法
    • KR1020100122340A
    • 2010-11-22
    • KR1020090041334
    • 2009-05-12
    • 삼성전자주식회사한국교통대학교산학협력단
    • 문준이성호윤순영문철조한신
    • H04W16/02H04W52/04
    • PURPOSE: A device and a method for suppressing interference between adjacent sectors in a communication system based uplink SDMA are provided to perform cooperation scheduling and uplink power control in a communication system based on uplink SDMA, thereby suppressing interference between adjacent sectors. CONSTITUTION: A path loss determining unit receives a downlink signal from adjacent sectors and determines average receiving power per each sector(202). The path loss determining unit calculates average downlink path loss per each sector using the average receiving power per each sector(204). A transmission power determining unit determines maximum transmission power from the downlink path loss per each sector based on minimum path loss. A controller transmits the determined maximum transmission power to a base station.
    • 目的:提供一种用于抑制基于上行链路SDMA的通信系统中的相邻扇区之间的干扰的装置和方法,以在基于上行链路SDMA的通信系统中执行协作调度和上行链路功率控制,从而抑制相邻扇区之间的干扰。 构成:路径损耗确定单元从相邻扇区接收下行链路信号,并确定每个扇区的平均接收功率(202)。 路径损耗确定单元使用每个扇区的平均接收功率来计算每个扇区的平均下行链路路径损耗(204)。 发送功率确定单元基于最小路径损耗从每个扇区的下行链路路径损耗确定最大发送功率。 控制器将确定的最大发送功率发送到基站。
    • 7. 发明公开
    • 다중 입출력 무선통신 시스템에서 프리코딩 장치 및 방법
    • 多输入多输出无线通信系统预处理的装置和方法
    • KR1020080083808A
    • 2008-09-19
    • KR1020070024477
    • 2007-03-13
    • 삼성전자주식회사한국교통대학교산학협력단
    • 박성우문준윤순영문철이명원
    • H04B7/04H04L27/26H04J11/00H04B7/02
    • H04B7/0634H04B7/0417H04B7/0447H04B7/0456H04B7/0632H04L27/2646
    • A precoding apparatus in a MIMO(Multiple Input Multiple Output) wireless communication system and a method thereof are provided to maintain high channel capacity with a small amount of feedback information by combining and using column vectors of an identical unitary precoding matrix for each subband in precoding in a MIMO wireless communication system. A receiving block in a MIMO wireless communication system comprises a channel estimation part(112), a correlation matrix calculation part(114), and a codebook selection part(116). The channel estimation part estimates a channel with a transmitting block for each subband. Based on the channel information estimated by the channel estimation part, the correlation matrix calculation part produces a spatial correlation matrix. Using the spatial correlation matrix and the channel information, the codebook selection part selects a unitary precoding matrix to be used for the precoding of the transmitting block.
    • 提供了MIMO(多输入多输出)无线通信系统中的预编码装置及其方法,通过组合并使用预编码中的每个子带的相同的单一预编码矩阵的列向量来维持具有少量反馈信息的高信道容量 在MIMO无线通信系统中。 MIMO无线通信系统中的接收块包括信道估计部分(112),相关矩阵计算部分(114)和码本选择部分(116)。 信道估计部分针对每个子带估计具有发送块的信道。 基于由信道估计部估计的信道信息,相关矩阵计算部分产生空间相关矩阵。 使用空间相关矩阵和信道信息,码本选择部分选择要用于发送块的预编码的酉预编码矩阵。