无线移动信息基础结构

Wireless Mobile Information Infrastructure

本文首先简述无线移动通信结合发展潮流 ,从模拟至数字 ,即将过渡至宽带和多媒体通信。为此 ,全国无线通信网将推广使用异步转移模式。接着 ,本文说明移动信息基础结构包含接入网和骨干网 ,而且无线基台处于接入网边缘 ,提供移动手机的无线接入。最后指出低轨道 /中轨道卫星族对全球个人通信将起重要作用。

The paper briefly mentions the evolution of wireless systems,from analog to digital and then to broadband multimedia communication.For this new generation,the ATM swith would be used in the national wireless network.Then,the paper explains the Mobile Information Infrastrcture,which consists of access network and backbone network,with base stations located at the boundary of access network to provide the mobile handsets with wireless access.Finally,it describes the forthcoming LEO /MEO satellite systems used for the global personal communitions.