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    • 4. 发明公开
    • 기지국의 송신 제어 장치
    • 信号传输控制器在基站
    • KR1020090066193A
    • 2009-06-23
    • KR1020080056330
    • 2008-06-16
    • 한국전자통신연구원삼성전자주식회사
    • 이승준권동승최완김해룡박현철
    • H04B7/06H04B7/26H04B7/155
    • H04W88/08H04B7/0413H04W72/12
    • A transmission controlling apparatus of a base station determining a signal transmission method based on maximum capacity is provided to improve signal transmission efficiency by determining a signal transmission method based on maximum capacity and predict maximum capacity in consideration of a channel correlation relation. A scheduler(112) selects a terminal acquiring the maximum system capacity based on channel information and interference signal information of each terminal corresponding to the selected terminal. A correlation operation(111) produces a channel correlation value based on the feedback channel information. A transmission controller determines the transmission mode based on channel correlation values and feedback channel information. The transmission controller produces the control signal corresponding to the transmission mode.
    • 提供基于最大容量确定信号传输方法的基站的传输控制装置,以通过基于最大容量确定信号传输方法并考虑信道相关关系预测最大容量来提高信号传输效率。 调度器(112)基于与所选终端相对应的每个终端的信道信息和干扰信号信息选择获取最大系统容量的终端。 相关操作(111)基于反馈信道信息产生信道相关值。 传输控制器基于信道相关值和反馈信道信息确定传输模式。 传输控制器产生对应于传输模式的控制信号。
    • 9. 发明公开
    • 다중 안테나 송신 시스템 및 이를 이용한 신호 전송 방법
    • 使用多个天线的信号传输系统及其信号传输方法
    • KR1020080032588A
    • 2008-04-15
    • KR1020070031354
    • 2007-03-30
    • 한국전자통신연구원삼성전자주식회사
    • 이승준권동승
    • H04B1/04H04L27/26H04B7/06
    • H04B7/12H04L5/0023H04L5/006H04L25/03343
    • A multi-antenna transmission system and a signal transmission method using the system are provided to simultaneously maximize a frequency diversity gain and channel estimation performance, therefore channel estimation performance of a receiving side can be improved. More than two phase shifters(110,120) comprise plural phase shifter groups(110a1-110aN,120a1-120aN) individually corresponding to plural tiles. More than two IFFTs(Inverse Fast Fourier Transformers)(130,140) multiplex output signals of one of the phase shifters to transform the multiplexed signals into time domain signals, and output the converted signals. More than two antennas transmit output signals of one of the IFFTs. The plural phase shifter groups comprise more than two phase shifters(110a1-1 to 110aN-M,120a1-1 to 120aN-M) which phase-shift each of individually inputted subcarrier symbols into the same phase shift values.
    • 提供了使用该系统的多天线传输系统和信号传输方法,以同时使频率分集增益和信道估计性能最大化,从而可以提高接收侧的信道估计性能。 多于两个移相器(110,120)包括分别对应于多个瓦片的多个移相器组(110a1-110aN,120a1-120aN)。 多个IFFT(快速傅立叶逆变换器)(130,140)对一个移相器的输出信号进行多路复用,将复用的信号转换为时域信号,并输出转换的信号。 两个以上的天线发射一个IFFT的输出信号。 多个移相器组包括两个以上的移相器(110a1-1至110aN-M,120a1-1至120aN-M),将每个单独输入的子载波符号相移至相同的相移值。