Turbo coding with rate matching by insertion and puncturing
    1.
    发明公开
    Turbo coding with rate matching by insertion and puncturing 审中-公开
    Turbo编码与速率匹配通过插入和删截

    公开(公告)号:EP1775841A3

    公开(公告)日:2011-08-10

    申请号:EP06119296.9

    申请日:2006-08-22

    IPC分类号: H03M13/29

    摘要: Turbo coding method and apparatus with rate matching. The apparatus comprises a turbo encoder (505,601) having convolutional encoders of constraint length k as component encoders, and further comprising a rate matcher (507,607) for performing a puncturing operation. A bit inserter arranged before (503) or after (605) the turbo encoder is provided for inserting a predetermined number of bits into a transmission information bit stream if the effective coding rate of a transmission packet is a predetermined coding rate causing a degradation of performance. such degradation arises when the periodicity of the puncturer is identical to the periodicity of the convolutional encoders, which is defined as two to the power of their constraint length minus one (2^k-1).

    Turbo coding with rate matching by insertion and puncturing
    2.
    发明公开
    Turbo coding with rate matching by insertion and puncturing 审中-公开
    Turbocodierung mit Ratenanpassung durchEinfügenund Punktieren

    公开(公告)号:EP1775841A2

    公开(公告)日:2007-04-18

    申请号:EP06119296.9

    申请日:2006-08-22

    IPC分类号: H03M13/29

    摘要: Turbo coding method and apparatus with rate matching. The apparatus comprises a turbo encoder (505,601) having convolutional encoders of constraint length k as component encoders, and further comprising a rate matcher (507,607) for performing a puncturing operation. A bit inserter arranged before (503) or after (605) the turbo encoder is provided for inserting a predetermined number of bits into a transmission information bit stream if the effective coding rate of a transmission packet is a predetermined coding rate causing a degradation of performance. such degradation arises when the periodicity of the puncturer is identical to the periodicity of the convolutional encoders, which is defined as two to the power of their constraint length minus one (2^k-1).

    摘要翻译: Turbo编码方法和具有速率匹配的装置。 该装置包括具有作为分量编码器的约束长度k的卷积编码器的turbo编码器(505,601),并且还包括用于执行穿孔操作的速率匹配器(507,607)。 如果发送分组的有效编码率是导致性能下降的预定编码率,则提供在(503)之前或之后(605)设置turbo编码器的比特插入器,用于将预定数量的比特插入到传输信息比特流中 。 当穿刺器的周期性与卷积编码器的周期性相同时,会出现这种劣化,卷积编码器的周期被定义为其约束长度减去1(2 ^ k-1)的幂的两倍。