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    • 4. 发明申请
    • APPARATUS AND METHOD FOR DECODING LDPC CODE BASED ON PROTOTYPE PARITY CHECK MATRIXES
    • 基于原型奇偶校验矩阵来解码LDPC码的装置和方法
    • US20090158121A1
    • 2009-06-18
    • US12166866
    • 2008-07-02
    • Jong-Ee OHChanho YOONCheol-Hui RYUEun-Young CHOISok-Kyu LEE
    • Jong-Ee OHChanho YOONCheol-Hui RYUEun-Young CHOISok-Kyu LEE
    • H03M13/05G06F11/07
    • H03M13/116H03M13/1137H03M13/1185H03M13/1188H03M13/6516
    • Provided is an apparatus and method for decoding a Low Density Parity Check (LDPC) code based on prototype parity check matrixes. The apparatus, includes: a parity check matrix selecting means for determining multiple prototype parity check matrixes according to a sub-matrix size and a parallelization figure for processing the parity check matrix; a bit input means for receiving a log likelihood probability value for input bit according to the sub-matrix size and the parallelization figure; a check matrix process means for sequentially performing a partial parallel process on the parity check matrix based on the received log likelihood probability value and the determined multiple prototype parity check matrixes; and a bit process means for determining a bit level based on the partial-parallel processed parity check matrix value and recovering the input bit according to the sub-matrix size and the parallelization figure.
    • 提供了一种基于原型奇偶校验矩阵对低密度奇偶校验(LDPC)码进行解码的装置和方法。 该装置包括:奇偶校验矩阵选择装置,用于根据子矩阵大小确定多个原型奇偶校验矩阵;以及用于处理奇偶校验矩阵的并行化图; 用于根据子矩阵大小和并行化图形接收输入比特的对数似然概率值的位输入装置; 校验矩阵处理装置,用于基于所接收的对数似然概率值和所确定的多原型奇偶校验矩阵,顺序对奇偶校验矩阵执行部分并行处理; 以及位处理装置,用于基于部分并行处理的奇偶校验矩阵值确定位电平,并根据子矩阵大小和并行化图形恢复输入位。
    • 6. 发明申请
    • APPARATUS AND METHOD FOR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM USING MULTI ANTENNA
    • 使用多天线在无线通信系统中接收信号的装置和方法
    • US20100142663A1
    • 2010-06-10
    • US12630056
    • 2009-12-03
    • Chanho YOONHun-Sik KangEun-Young ChoiSok-Kyu Lee
    • Chanho YOONHun-Sik KangEun-Young ChoiSok-Kyu Lee
    • H04L27/08
    • H04L27/01H03G3/3052H04B7/08H04L27/08H04L2025/03426
    • Provided are apparatus and method for receiving signals in a wireless communication system. A receiving apparatus including a plurality of variable gain amplifier units configured to respectively control the gains of radio frequency (RF) signals received respectively through a plurality of antennas, and a plurality of analog-to-digital converters configured to respectively convert the output signals of the respective variable gain amplifiers into digital signals, includes: an automatic gain controller configured to calculate the gain values of the respective gain control amplifier units by receiving the digital signals outputted from the respective analog-to-digital converters, select the minimum gain value among the calculated gain control values, and calculate the differences between the minimum gain value and the other gain values; and a noise matching amplifier configured to attenuate the digital signals outputted from the respective analog-to-digital converters according to the calculated difference values.
    • 提供了一种用于在无线通信系统中接收信号的装置和方法。 一种接收装置,包括:多个可变增益放大器单元,被配置为分别控制分别通过多个天线接收的射频(RF)信号的增益;多个模数转换器,被配置为分别转换 将各个可变增益放大器转换为数字信号,包括:自动增益控制器,被配置为通过接收从各个模数转换器输出的数字信号来计算各个增益控制放大器单元的增益值,选择最小增益值 计算增益控制值,并计算最小增益值与其他增益值之间的差值; 以及噪声匹配放大器,被配置为根据所计算的差值来衰减从各个模数转换器输出的数字信号。