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1.发明公开Multilevel weighted transmission method and multilevel weighted transmission and reception apparatus 失效用于发送和接收加权的多级传输加权多级传输的方法和装置
公开(公告)号：EP0702476A2
公开(公告)日：1996-03-20
申请号：EP95111926.2
申请日：1995-07-28
CPC分类号： H04L1/0068 , H03M13/00 , H03M13/25 , H04L1/0041 , H04L1/006 , H04L1/007 , H04L27/3433
摘要： According to this invention, there are provided a multilevel weighted transmission method which allows error correction encoders to be reduced to one without error propagation and an apparatus using this method. The multilevel weighted transmission method is such that a plurality of hierarchic information source data strings are subjected to different multilevel weighted coding and modulation by a trellis-coded modulation scheme and the resulting strings are transmitted, and on the reception side, the received signal is subjected to the multilevel weighted demodulation and decoding according to the transmission side to obtain the original hierarchic information source data strings. When the specific first subsets are allocated to the hierarchic levels of the transmission channel in the multilevel weighted transmission and time-division multiplexed at a predetermined ratio, the order of time-division multiplexing the hierarchic levels of the transmission channel is ascending order of the quality of transmission error characteristic.
摘要翻译： 。根据本发明，提供了允许误差校正编码器降低到一个没有误差传播和使用该方法的装置的多值加权的发送方法。 检查该多级加权的发送方法并分层信息源的数据串的一个多元化经受由网格编码调制方案不同的多级加权的编码和调制，并将所得的字符串是反式mitted，和在接收侧，所接收的信号进行 所述多级加权的解调和解码gemäß到发送侧以获得原始信息分层源数据串。 当特定的第一子集被以预定的比率分配给传输信道的分层电平在所述多级加权的发送和时分多路复用，时分的顺序复用传输信道的分层等级是升序的质量的顺序 的传输误差特性。
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