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    • 7. 发明专利
    • Encoding device and communication apparatus
    • 编码设备和通信设备
    • JP2013175799A
    • 2013-09-05
    • JP2012037397
    • 2012-02-23
    • Toshiba Corp株式会社東芝
    • UCHIKAWA HIRONORI
    • H03M13/19
    • H03M13/1154H03M13/13
    • PROBLEM TO BE SOLVED: To implement iterative decoding performance close to the Shannon limit as for a systematic code.SOLUTION: According to an embodiment, a parity check matrix coincides with a matrix resulting from a copying/permuting operation performed on a spatial coupling matrix. The spatial coupling matrix comprises a plurality of diagonally arrayed matrices coupling a plurality of expanded matrices in a row direction. The sum of the plurality of expanded matrices coincides with a fundamental matrix. The fundamental matrix corresponds to a protograph including a check node CT1-1 of a first type, a check node CT1-2 of a second type, a variable node VT1-1 of the first type, a variable node VT1-2 of the second type, a variable node VT1-3 of a third type, one edge ET1-1 of the first type, two edges ET1-2 of the second type, three edges ET1-3 of the third type and two edges ET1-4 of a fourth type.
    • 要解决的问题:对于系统代码,实现接近香农极限的迭代解码性能。解决方案:根据实施例,奇偶校验矩阵与由空间耦合矩阵执行的复制/置换操作产生的矩阵重合。 空间耦合矩阵包括在行方向上耦合多个扩展矩阵的多个对角排列矩阵。 多个扩展矩阵的和与基本矩阵重合。 基本矩阵对应于包括第一类型的校验节点CT1-1,第二类型的校验节点CT1-1,第二类型的校验节点CT1-2,第一类型的校验节点CT1-2,第一类型的变量节点VT1-1,第二类型的变量节点VT1-2, 类型,第三类型的变量节点VT1-3,第一类型的一个边缘ET1-1,第二类型的两个边缘ET1-2,第三个类型的三个边缘ET1-3和第三个类型的两个边缘ET1-4 第四种。