To solve these problems is to develop a new generation of digital cellular mobile communication system.
解决这些问题的方法是开发新一代数字蜂窝移动通信系统。
This paper mainly analyzes three user detection approaches in digital cellular mobile communication systems based on CDMA.
着重分析了在码分多址（CDMA）数字蜂窝移动通信系统中的三种用户检测技术。
The cellular digital packet data(CDPD) system is a wireless packet communication system based on analog cellular telephone networks.
蜂窝数字分组数据（CDPD）系统是基于模拟蜂窝电话网的无线分组数据通信系统。
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