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在第三代移动通信系统展开应用的同时 ,关于第四代移动通信系统的讨论也已全面展开。本文先介绍移动通信发展的现状 ,然后对3G和4G系统进行比较 ,讨论4G里的一些关键技术 ,最后对第四代移动通信系统的发展进行了展望。
In the third generation of mobile communication system to start the application at the same time, the discussion on the fourth generation of mobile communication system has also been in full swing. This article first introduces the current situation of the development of mobile communications, and then compares the 3G and 4G systems to discuss some of the key technologies in 4G. Finally, the development of the fourth generation mobile communications system is prospected.