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    • 70. 发明申请
    • APPARATUS AND METHOD FOR SIGNAL TRANSMISSION/RECEPTION IN A COMMUNICATION SYSTEM
    • 通信系统中信号传输/接收的装置和方法
    • US20080109708A1
    • 2008-05-08
    • US11935259
    • 2007-11-05
    • Dong-Ho KIMYung-Soo KimTak-Ki YuKeum-Chan WhangKwang-Soon KimHyo-Yol Park
    • Dong-Ho KIMYung-Soo KimTak-Ki YuKeum-Chan WhangKwang-Soon KimHyo-Yol Park
    • H03M13/03
    • H03M13/1102H03M13/033H03M13/6393
    • A method and an apparatus for transmitting a signal in a communication system are provided. An information vector is encoded according to a Low Density Parity Check (LDPC) encoding scheme, thereby generating an LDPC codeword. Minimum surviving check nodes are reserved for recovery of punctured nodes in the LDPC codeword. A check node is selected having a smallest cost function from among unreserved check nodes. A variable node is selected being unpunctured and having a smallest cost function from among variable nodes connected to the selected check node. The selected variable node is punctured when the selected variable node is not connected to the reserved check node. A stopping set check is performed when the selected variable node is connected to the reserved check node. The variable node is punctured when the stopping set check has been successfully performed. The check node is selected until there remains no variable node to be punctured and puncturing the variable node.
    • 提供了一种用于在通信系统中发送信号的方法和装置。 根据低密度奇偶校验(LDPC)编码方案对信息向量进行编码,从而生成LDPC码字。 保留最小存活检查节点用于恢复LDPC码字中的穿孔节点。 从未预留的校验节点中选择具有最小成本函数的校验节点。 从连接到所选择的校验节点的变量节点中选择变量节点是未穿刺的并且具有最小的成本函数。 当所选择的变量节点未连接到保留的校验节点时,所选择的变量节点被打孔。 当所选变量节点连接到保留校验节点时,执行停止集检查。 当成功执行停止设置检查时,变量节点被打孔。 选中校验节点,直到不存在要删除的变量节点并对该变量节点进行删截。