第四代移动通信技术浅析

Analysis of fourth generation mobile telecommunications technology

对第四代移动通信技术(4G)的产生背景、发展历史、概念和技术特点进行了介绍。对4G的网络架构和关键技术进行了分析和讨论,详细分析了OFDM技术、MIMO技术、软件无线电技术、切换技术、智能天线和基于Ipv6的核心网技术,并结合一些调研数据,对4G的最新进展以及4G对计算机技术发展的影响进行了一定的分析,并对未来的技术发展进行了展望。

A general introduction to the fourth generation mobile telecommunications technology （4G） is given, including the current situation and background from which it come into being, history of its development, concept and technical characters. The network architecture and key technologies of 4G are analyzed and discussed in detail, including OFDM, MIMO, SDR, handover technology, adaptive antenna array and core net technology based on Ipv6. The latest development of 4G is also described, just based on data which is gain through market investigation to some key enterprises, in the aspects of the newest improvement and the impact of 4G on the developing trend of computer technology. At last, the applications of this new technology are prospected.