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ＣＤＰＤ是蜂窝数字分组数据（ＣｅｌｌｕｌａｒＤｉｇｉｔａｌ Ｐａｃｋｅｔ Ｄａｔａ）的简称。它是由美国ＣＤＩ（Ｃｅｌｌｕａｒ Ｄａｔａ，Ｉｎｃ）公司提出的一项无线数据通信技术。在九十年代中期首先由美国ＡＴ＆Ｔ公司推入市场。投入商用。目前在美国等多个国家，ＣＤ
CDPD is short for cellular digital packet data. It is a wireless data communication technology proposed by the United States CDI (Celluar Data, Inc) company. In the mid-1990s, AT & T was first introduced into the market by the United States. Put into commercial use Currently in the United States and other countries, CD