DMA20001X提供了比IS95B更为丰富的数据业务，SCH数据速率可以从9.6kpbs到153.6kbps不等。吞吐量是衡量数据业务性能优劣的重要指标之一，对于网络的每一层（物理层、SDU层、Mux层、RLP层、PPP层、TCP/IP层、应用层）都有相应的吞吐量，虽然在物理层能够提供最大数据业务吞吐量为153.6+9.6＝163.2kpbs，但是由于层间复用，在数据包中增加了数据头，使得经过多层复用以后数据包长度变长；另外由于采用了RLP重传机制，以及RLP层应答延时的引入，使得一个终端用户实际感受到的有效吞吐量要小得多。 本文分析了各层复用所引入的信息冗余，以及由于误码导致重传而引起的有效吞吐量的降低，通过计算，定量分析，为CDMA20001X数据业务吞吐量的优化提供了理论依据

CDMA 20001X数据业务应用层最大吞吐量分析.doc

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