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    • 6. 发明授权
    • Data interleaver and method of interleaving data
    • 数据交织器和交织数据的方法
    • US06732316B1
    • 2004-05-04
    • US09531470
    • 2000-03-20
    • Wen TongCatherine Leretaille
    • Wen TongCatherine Leretaille
    • H03M1300
    • H04L1/0068H03M13/271H03M13/2764H04L1/0041H04L1/0071
    • Interleaving of data symbols comprises permuting rows and columns of a matrix of Nr rows and Nc columns, in which data symbols to be interleaved are represented row by row, in accordance with: Row Permutation Ir (k) = [&agr;rk + fc (l)] modNr Column Permutation Ic (l) = [&agr;cl + fr (k)] modNc where Ir(k) represents a data symbol with a row index k, k is an integer from 1 to Nr&agr;r is an integer, fc(l) is a non-zero function of a column index l, l is an integer from 1 to Nc, Ic(l) represents a data symbol with the column index l, &agr;c is an integer, fr(k) is zero or a function of the row index k, and modnr and modnc represent modulo-Nr and modulo-Nc arithmetic respectively, interleaved data symbols being derived from the matrix column by column. A data interleaver comprises a memory for sequentially storing data symbols to be interleaved and a relatively simple circuit for determining read addresses for the interleaved data symbols. The data interleaver is particularly suited for channel interleaving in a 3rd generation CDMA wireless communications system.
    • 数据符号的交错包括排列Nr行和Nc列的矩阵的行和列,其中要交织的数据符号逐行表示,其中Ir(k)表示具有行索引k的数据符号 ,k是从1到Nralphar的整数,是整数,fc(l)是列索引l的非零函数,l是从1到Nc的整数,Ic(1)表示具有列索引的数据符号 l,alphac是整数,fr(k)为零或行索引k的函数,modnr和modnc分别表示模Nr和模Nc运算,交错数据符号逐列地从矩阵中导出。 数据交织器包括用于顺序地存储要被交织的数据符号的存储器和用于确定交织的数据符号的读取地址的相对简单的电路。 数据交织器特别适用于第三代CDMA无线通信系统中的信道交织。
    • 7. 发明授权
    • Data interleaver and method of interleaving data
    • 数据交织器和交织数据的方法
    • US06684361B2
    • 2004-01-27
    • US10413355
    • 2003-04-14
    • Wen TongCatherine Leretaille
    • Wen TongCatherine Leretaille
    • H03M1300
    • H04L1/0068H03M13/271H03M13/2764H04L1/0041H04L1/0071
    • Interleaving of data symbols comprises permuting rows and columns of a matrix of Nr rows and Nc columns, in which data symbols to be interleaved are represented row by row, in accordance with: Row Permutation Ir (k) = [&agr;rk + fc (l)]modNr Column Permutation Ic (l) = [&agr;cl + fr (k)]modNc where Ir(k) represents a data symbol with a row index k, k is an integer from 1 to Nr, &agr;r is an integer, fc(l) is a non-zero function of a column index l, l is an integer from l to Nc, Ic(l) represents a data symbol with the column index 1, &agr;c is an integer, fr(k) is zero or a function of the row index k, and modNr and modNc represent modulo-Nr and modulo-Nc arithmetic respectively, interleaved data symbols being derived from the matrix column by column. A data interleaver comprises a memory for sequentially storing data symbols to be interleaved and a relatively simple circuit for determining read addresses for the interleaved data symbols. the data interleaver is particularly suited for channel interleaving in a 3rd generation CDMA wireless communications system.
    • 数据符号的交错包括排列Nr行和Nc列的矩阵的行和列,其中要交织的数据符号逐行表示,其中Ir(k)表示具有行索引k的数据符号 ,k是从1到Nr的整数,alphar是整数,fc(l)是列索引l的非零函数,l是从1到Nc的整数,Ic(1)表示数据符号, 列索引1,alphac是整数,fr(k)为零或行索引k的函数,modNr和modNc分别表示模Nr和模Nc运算,交织数据符号从列逐列派生 。 数据交织器包括用于顺序地存储要被交织的数据符号的存储器和用于确定交织的数据符号的读取地址的相对简单的电路。 数据交织器特别适用于第三代CDMA无线通信系统中的信道交织。