TD-LTE无线接入网介绍  

Long Term Evolution of TD-LTE over TD-SCDMA Radio Access Network System

作　　者：陈昌川[1,2] 廖晓锋[1] 赵川斌[2] 

机构地区：[1]重庆大学,重庆400030 [2]重庆邮电大学,重庆400065

出　　处：《通信技术》2009年第3期103-105,共3页Communications Technology

摘　　要：TD-SCDMA技术正在大规模的应用,发展迅速;TD-LTE技术作为TD-SCDMA的未来演进技术各项规范正在逐步完善,测试正在逐步开展,文中对TD-LTE(TDD LTE)的演进过程,网络架构,物理层关键技术,高层协议栈进行了初步分析介绍,并对照TD-SCDMA系统,对TDD双工方式、OFDM技术,MIMO技术和智能天线的应用,协议非接入层进行的改进和发展进行了介绍;最后文章对TD-LTE的发展进行了探讨。TD-SCDMA technology is developing rapidly, and applied in a large-scale. As the future evolution technology over TD-SCDMA System, TD-LTE Terrestrial Radio Access Network technology specifications have been approved by 3GPP, and are now being perfected and tested. In this paper, network system architecture, Physical layer technology and other layers specifications are analyzed. And also the improvement on and development of TDD, OFDM, MIMO and Smart Antenna, NAS layers is described, the future development of TD-LTE discussed.

关 键 词：TD—LTE Type 2帧结构 e—NodeB 

分 类 号：TN929.5[电子电信—通信与信息系统]