Method and apparatus for interleaving\within a communication system
    7.
    发明授权
    Method and apparatus for interleaving\within a communication system 有权
    在通信系统内交织的方法和装置

    公开(公告)号:US07590044B2

    公开(公告)日:2009-09-15

    申请号:US11273309

    申请日:2005-11-14

    IPC分类号: H04J9/00 H04L5/04 H03K7/10

    摘要: A method and apparatus for interleaving within a communication system is provided herein. More particularly parameters for a convolutional turbo code interleaver are provided, and interleaving takes place utilizing the new parameters. The new parameters generate interleavers that have the correct turbo code behaviors of improving performance with increasing block size and an error floor well below a block error rate of 10−4. Furthermore, the parameters have no implementation impact. Interleaving in accordance with the preferred embodiment of the present invention can achieve a block error rate of 10−4 at a signal-to-noise ratio that is at least 0.5 dB, and in some cases up to 1.3 dB, smaller than that which can be achieved with the code using the existing parameters.

    摘要翻译: 本文提供了一种在通信系统内进行交织的方法和装置。 提供了更具体的用于卷积turbo码交织器的参数,并且利用新参数进行交织。 新参数产生具有正确的Turbo码行为的交织器,其性能随着块大小的增加而增加,误差大大低于10-4的块错误率。 此外,参数没有实现影响。 根据本发明的优选实施例的交错可以在至少0.5dB的信噪比下实现10-4的块错误率,并且在一些情况下可以达到1.3dB,小于可以 使用现有参数的代码实现。

    Method and apparatus for encoding and decoding data
    8.
    发明授权
    Method and apparatus for encoding and decoding data 有权
    用于对数据进行编码和解码的方法和装置

    公开(公告)号:US07343548B2

    公开(公告)日:2008-03-11

    申请号:US11108949

    申请日:2005-04-19

    IPC分类号: H03M13/00 G06F11/00

    摘要: A structured parity-check matrix H is proposed, wherein H is an expansion of a base matrix Hb. Base matrix Hb comprises a section Hb1 and a section Hb2. Section Hb2 comprises column hb having weight wh>=3 and H′b2 having a dual-diagonal structure with matrix elements at row i, column j equal to 1 for i=j, 1 for i=j+1, and 0 elsewhere. The 1's of hb and Hb1 are arranged such that one or more groups of the rows of Hb can be formed so that the rows of Hb within each group do not intersect. Further more, the rows of base matrix Hb can be permuted such that every two consecutive rows do not intersect.

    摘要翻译: 提出了一种结构化奇偶校验矩阵H,其中H是基本矩阵H B b的扩展。 基本矩阵H B b包括部分H b1和部分H b2b。 部分H b2包括具有重量w = 3的第hb个b和具有双重键的H' 对于i行j矩阵元素的对角线结构,对于i = j,列j等于1,i = j + 1为1,其他地方为0。 hB1和H b1的1个被布置成使得可以形成一行或多组H B b的行,使得行 每个组中的H b b不相交。 此外,基矩阵H B b的行可以被置换,使得每两个连续的行不相交。