中文说明：应用背景这方面的贡献的目的是提供的性能的级联的芦苇和在模式中描述的卷积码，在当前的物理层标准草案中。此代码只适用于连续传输流在一个频率分割的下游通道双工（FDD）系统。关键技术在这方面的贡献的代码分析的下游通道在下面的框图如图所示。级联的多码/卷积编码方案的概念框图在收敛层，系统地缩短（204188），在每个收到188字节的数据包，不等于8。这意味着每个传输数据包的8个错误的字节可以被纠正。这个过程增加了16个校验字节传输数据包给一个204字节的码字。
English Description：
Application backgroundThe purpose of this contribution is to provide the performance of the concatenated Reed-Solomon and convolutional code that is described in Mode A of the current draft physical layer standard. This code is only applicable for the downstream channel that uses a continuous transmission stream in a frequency division duplexed (FDD) system.Key TechnologyThe code analyzed in this contribution for the downstream channel is shown in the following block diagram. Conceptual Block diagram of the Concatenated Reed-Solomon/Convolutional Coding Scheme Following the convergence layer, systematic shortened (204,188) Reed-Solomon encoding is performed on each received 188 byte packet, with T = 8. This means that 8 erroneous bytes per transport packet can be corrected. This process adds 16 parity bytes to the transport packet to give a 204 byte codeword.