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    • 9. 发明授权
    • Relay-based communication system and method processing signal without cyclic prefix
    • 基于中继的通信系统和方法处理信号无循环前缀
    • US08451916B2
    • 2013-05-28
    • US12098464
    • 2008-04-07
    • Ui Kun KwonYoung-Doo KimGi Hong ImDae-Young SeolWon-Jae Shin
    • Ui Kun KwonYoung-Doo KimGi Hong ImDae-Young SeolWon-Jae Shin
    • H04L27/28
    • H04B7/15592
    • A relay-based communication system and method processing a signal without a cyclic prefix is provided. An apparatus for generating a relay signal includes a signal receiving unit which receives a source signal transmitted from a source node to a relay node and detects a received signal, a signal conversion unit which extracts samples corresponding to a first time duration from the received signal, sums the received signal and the extracted samples in a second time duration, and generates a converted received signal, a relay signal generation unit which generates a relay signal cooperating with the source signal based on the converted received signal according to a space frequency block code (SFBC) scheme, and a signal transmission unit which transmits the generated relay signal to a destination node.
    • 提供一种基于中继的通信系统和处理没有循环前缀的信号的方法。 一种用于产生中继信号的装置,包括信号接收单元,该信号接收单元接收从源节点发送到中继节点的源信号并检测接收信号;信号转换单元,从接收到的信号中提取与第一持续时间相对应的样本, 在第二持续时间内对接收到的信号和提取的样本求和,并产生转换的接收信号;继电器信号生成单元,根据空间频率块码,生成与源信号协调的中继信号 SFBC)方案,以及将生成的中继信号发送到目的地节点的信号发送单元。
    • 10. 发明授权
    • Apparatus and method of reconstructing amplitude-clipped signal
    • 重建幅度信号的装置和方法
    • US07907511B2
    • 2011-03-15
    • US11924928
    • 2007-10-26
    • Young-Doo KimEung Sun KimTae Soo KwonUi Kun KwonGi Hong ImDong Sik Kim
    • Young-Doo KimEung Sun KimTae Soo KwonUi Kun KwonGi Hong ImDong Sik Kim
    • H04J11/00
    • H04B1/59
    • A wireless data transmission method and apparatus are provided for compensating a distortion due to a clipped amplitude when an amplitude of a signal is clipped to reduce a peak to average power ratio (PAPR) in a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme and a transmit diversity method using an orthogonal coding. The wireless data transmission apparatus includes a coding unit which Space-Time block codes a first data stream into a plurality of second data streams, the plurality of second data streams being orthogonal to each other; an inverse Fourier transform unit which performs an inverse Fourier transform of each of the Space-Time block coded second data stream and generates a plurality of time domain signals; and a plurality of amplitude clipping units which clips an amplitude of each of the plurality of generated time domain signals.
    • 提供了一种无线数据传输方法和装置,用于当信号的幅度被限幅时补偿由于限幅幅度引起的失真,从而在使用正交频分复用(OFDM)的无线通信系统中降低峰均功率比(PAPR) )方案和使用正交编码的发射分集方法。 无线数据传输装置包括:空时块将第一数据流编码为多个第二数据流的编码单元,多个第二数据流彼此正交; 逆傅立叶变换单元,其执行空时块编码的第二数据流中的每一个的傅里叶逆变换,并生成多个时域信号; 以及多个幅度剪辑单元,其剪辑所述多个所生成的时域信号中的每一个的振幅。