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CDMA技术特点与提供的功能
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摘 要：主要阐述了第三代移动通信CDMA技术特点与其提供的强大功能。移动通信终端已从传统的电话、收发短信息通信的狭窄的服务中走向了宽带多媒体应用中。PDSN是连接无线网络和分组数据网的接入网关，为移动Internet／Intranet用户提供分组数据接入服务。AAA服务器能够通过验证一些预先登记的信息来提供用户身份认证，决定是否授权移动用户访问特定的网络资源，通过计费信息的处理，进行计费、审计、成本分配或趋势分析。CDMA技术为移动通信业务的更新发展提供了有力的保证。
关键词：CDMA；AAA服务器；Internet；Intranet
Characteristics and Functions for CDMA Technology
Abstract：This issue mainly sets forth the character and strong powerofthe 3th generation mobile telecommunication technology -CDMA. Telecommunicational ter ms have transered from narrow services, such as telephone, sending or receiving messages, to multimedium of broad band．PDSN is entry gateway，whitch linking wireless net and package net together．PDSN also serving forusers｀entering package date net．AAA server can provide users｀identification by probing pre-registed login information，then decidewhether permitting mobile users using some network resourse，at the same time it calculating fee，audittin，allotting of cost oranalysising of trend．CDMA providing powerful guarantee for developmentofmobile communication．
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