《3G关键技术探讨》-毕业论文.doc

3G关键技术探讨 PAGE 2 精品 毕 业 论 文 （ 设 计 ） 论文题目： 3G关键技术探讨 学生姓名： ******* 学号： ************* 指导教师： ******** 职称： 院 系： 物理与电子信息工程学院 专业班级： ******** 二○一二 年 五 月 十 日 摘要 摘要：第三代移动通信（3G）被认为是世界上最具发展潜力的产业，关于3G的发展策略、标准化工作进展、必威体育精装版技术与产品、市场运营等情况备受瞩目。本文简要介绍了第三代移动通信及其系统原理并概括了IMT-2000系统的无线传输技术方案，其中主要介绍了CDMA2000系统的相关原理。 本文分为四大部分，第一部分对移动通信做了简介并回顾了移动通信的三代发展历程；第二部分开始正式介绍第三代移动通信系统，包括基本系统模型，3G的特点；第三部分介绍的是3G技术中的关键技术，即无线传输技术的标准方案；第四部分涉及到了此次毕业设计中要研究的CDMA2000系统，对其进行了简要概括并以CDMA2000 1x为例介绍了CDMA2000系统的关键技术，之后介绍了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 Abstract Abstract:The 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 principles. This 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 trend.