Method of blindly detecting a transport format of an incident convolutional encoded signal, and corresponding convolutional code decoder
    2.
    发明公开
    Method of blindly detecting a transport format of an incident convolutional encoded signal, and corresponding convolutional code decoder 审中-公开
    传送格式转换格式faltungskodierten Signals,undzugehörigerFaltungsdekodierer

    公开(公告)号:EP1471677A1

    公开(公告)日:2004-10-27

    申请号:EP03290993.9

    申请日:2003-04-23

    Abstract: The actual transport format is ex ante unknown and belonging to a set of MF predetermined reference transport formats. The signal comprises a data block having an ex ante unknown number of bits corresponding to said ex ante unknown transport format, and a cyclic redundancy check (CRC) field containing a transmitted CRC word. The method comprises decoding said signal using a Maximum-a-Posteriori algorithm, said decoding step including decoding said signal considering respectively the MF possible reference formats and respectively delivering MF corresponding groups of soft output information, calculating from each group of soft output information a calculated CRC word and comparing said calculated CRC word with said transmitted CRC word, selecting all the groups for which said calculated CRC word is equal to said transmitted CRC word, and selecting the actual transport format of the encoded signal from at least one soft output information among the last ones of each selected group.

    Abstract translation: 具有数据块具有未知未知位数的信号使用最大后验算法进行解码,考虑MF可能的参考格式并分别递送组的软输出信息。 从所计算的循环冗余校验(CRC)字等于发送的CRC字的传送组中选择编码信号的传输格式。 独立权利要求也包括以下内容:(1)卷积码解码器; 和(2)无线通信系统终端。

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