提出了不同业务采用调频率不同的线性调频扩频(CSS)进行混合传输的新方法,在物理层上赋予业务差异化的传输质量.结合分数阶傅里叶变换等方法,能够对业务信号进行识别和分类.将多业务混合传输问题转化为同类业务变换域复用/多址设计和不同业务间干扰抑制问题.通过对不同业务信号频点、时隙的协同设计,并使用变换域滤波处理手段,能有效抑制业务间干扰.%A novel multi-services transmission scheme based on multi-chirp-rate CSS was proposed, which provided different quality of transmission to services on the physical layer. Using fractional fourier transform (FrFT), signals of different services could be recognized and classified. Multi-services transmission problem had been simplified into transform domain multiplexing/ multiple access design and suppress the interference of other different service signals. By the collaborative design of services frequencies and time slots, and application of filtering in transform domain, the problem of services signals interference had been settled.
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