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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Design idea of prediction system of telephone traffic demand in mobile communication networks has also been systematically put forward.

比较系统地提出了移动通信网话务量需求预测系统的设计思路。

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And the cost curve of the collection technology solar panels, small and large wind turbines, geothermal heat pumps, small hydro, tidal and wave technology, biomass converters is following the same cost curve dynamics as when we went from centralized mainframe computers to desktop computers and from centralized telephone communication to distributed cell phone networks.

FORBES: Jeremy Rifkin's Third Industrial Revolution