本文描述可升级的DMR系统的数据协议包（PDP），该系统包含三级可能的产品： 第一级产品：DMA设备使用完整的天线，工作在直通模式（不使用基础设施通信）的DMR设备，有普通授权而没有个体授权-This article describes the DMR system scalable packet data protocol (PDP), the system consists of three possible products: the first-class products: DMA

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