4G通信技术现状及发展趋势分析.doc

四川师范大学本科毕业设计 4G通信技术现状及发展趋势分析 学生姓名 罗紫函 院系名称 物理与电子工程学院 专业名称 通信工程 班 级 2009 级 4 班 学 号 2009070434 指导教师 李焕洲 完成时间 2013年 5月 14日  4G通信技术现状及发展趋势分析 学生姓名：罗紫函 指导老师：李焕洲 内容摘要： 当3G网络在中国方兴未艾，中国移动抢先一步开始着手4G技术的发展。这不仅是一场即将到来的技术革命，更是标志着中国在移动通信标准制定领域再次走到了世界前列。4G的发展将给我们生活的城市、整个移动通信产业，还有每个消费者带来哪些好处呢？? 目前，对第四代移动通信（4G）已经确切定义。本文根据当前的研究方向及现状对4G发展的现状与趋势进行了简要分析，本文主要从以下五个方面阐述了我对4G的了解：1）移动通信系统发展的历程及现状 ；2）国外及国内在4G移动通信技术的发展现状及趋势的分析；3）在3G通信技术发展的基础上对4G通信技术进行了初步的探讨与比较；4）对4G通信技术的主要特点与技术做了简要说明；5）对4G通信技术未来的发展展望，同时也对中国4G的发展提出了自己的观点和期望。但是，由于自己知识水品有限，有些观点会有一定的限制、不完善等。 关键词：4G 移动通信 发展现状 发展趋势 4G communication technology status and development trend analysis Abstract: When the 3G network in the ascendant in China, China Mobile is the first step began the development of 4G technology. This is not only an imminent technology revolution, but also marks the Chinese in the field of mobile communications standards once again came to the world. The development of 4 g will give us a life of city, the whole mobile communication industry, and each customer what are the benefits? At present, the fourth generation mobile communication (4 g) has been defined exactly. In this paper, based on the current research direction and the present situation of the present situation and development trend in the development of 4 g has carried on the brief analysis, this article mainly from the following five aspects elaborated my understanding of the 4 g: 1) the development of mobile communication system and the present situation; 2) abroad and domestic in the 4 g mobile communications technology development present situation and trend analysis; 3) on the basis of the 3 g communication technology development of 4 g communication technology has carried on the preliminary discussion and comparison; 4) the main characteristics of 4 g communication technology and technology made brief explanation; 5) on the outlook for the future development of 4 g communication technology, but also to the development of Chinas