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CDMA20001X是IS 95体制从2G系统向3G过渡的必经之路。文中介绍了CDMA20001X系统的网络结构、两种接入CDMA20001X分组数据网络的方式,并探讨了系统的关键技术,最后展望了CDMA20001X的发展趋势。
CDMA20001X IS95 system from 2G system to 3G transition must pass. This paper introduces the network structure of CDMA20001X system, two ways to access CDMA20001X packet data network, and discusses the key technologies of the system. Finally, the development trend of CDMA20001X is forecasted.