摘要
介绍了无线数据网（ＣＤＰＤ）的基本概念和工作原理，系统特点和系统组成以及应用范围，并介绍了ＣＤＰＤ一期工程在我国实施情况。
This paper
introduces the basic concept and working principle of CDPD,its system characteristics, system
configuration, and scope of application, also introduces the 1st stage of CDPD constrution project
in China.
