3G关键移动通信技术探讨毕业论文可编辑.docVIP

摘要摘要3G技术的应用以及3G在我国的发展情况最后讲述了3G向4G演进趋势关键词第三代移动通信无线传输技术智能天线功率控制技术AbstractAbstractThe third generation 3 G mobile phone is believed to be the worlds largest potential industry about 3 G development strategy standardization work progress the latest technology and products market operation and so on high-profile case This paper briefly introduces the third generation mobile communication and its system principle and generalizes the IMT-2000 system of wireless transmission technology plan which mainly introduced the CDMA2000 system of related principlesThis paper will be divided into four most the first part of mobile communications made a brief introduction and reviewed the mobile communication development course of three generations The second part of the formal introduction to start the third generation mobile communication system including basic system model and the characteristics of the 3 G The third part of the 3 G technology is introduced the key technology including wireless transmission technology standard solution The fourth part involved in the graduation design to the CDMA2000 system the paper has briefly summarized and CDMA2000 1 x as an example to introduce the CDMA2000 system key technology then introduces the application of the 3 G and 3 G in the development of our country and about 3 G to 4 G evolution trendKey words the third generation mobile communication wireless transmission technology smart antenna power control technology目 录1绪论 411课题背景与意义 412移动通信的发展 513 2G和3G协同规划及优化 6131协同规划2G和3G网络 6132协同优化2G和3G网络 72第三代移动通信系统 821 3G的含义 822 IMT-2000系统模型 823 3G主要特点及目标 93IMT-2000无线传输技术方案 1031各种技术方案的提出简介 1032三种主流3G标准概述与比较 11321三种主流3G标准概述 11322三种主流3G标准主要技术性能比较 1243G关键技术分析 1341 CDMA技术 1342 CDMA2000 1x的关键技术 1343智能天线 14431智能天线的自适应算法 14432智能天线的优点 1544 功率控制技术 1545 3G技术的应用 1646 3G技术发展方向 17461 总体发展 17462 业务发展 1747 3G技术在我国的发展情况 1748 4G的介绍 1949 3G全球概况及向4G演进趋势 20结论 22参考文献 23致谢 241绪论随着移动通信的迅猛发展现有的包括GSM和IS-95通信系统已很难满足发展要求因此第三代移动通信倍受注目而在第三代移动通信中宽带DSCDMA