摘要
TD-SCDMA是目前3G标准中的一个热门话题,与第二代移动通信GSM相比,使用了智能天线、多用户检测、软件无线电等多种新技术,优化了系统设计,无线资源利用率高。其显著特点在于向用户提供各种环境下高速、可靠的数据业务,从而满足人们对未来通信的需求,成为3G的主要发展方向之一。因此,本文首先对TDSCDMA系统终端的结构及组成进行概述,接着主要阐述了该标准体系中的分组数据业务,分析其业务流程,最后对其发展前景进行了展望。
TDSCDMA is a current pop topic of the third generation standard,more advanced techniques are used in this system,such as Smart Antenna(SA),Mutiple User Detection(MUD),Software Radio etc.,the system design is optimized,radio resources are utilized sufficiently.It can provides users with highspeed and reliable packet data service,this is a remarkable advantage over 2nd GSM,thus,it can achieve people′s requirements of future communication and become one of leading trend.In this paper,the structure and components of TDSCDMA standard system are described briefly,then the packet data service is mainly discussed,analyses its service flow.Finally this paper also looks forward to the standard′s prospect.
出处
《现代电子技术》
2005年第11期56-58,共3页
Modern Electronics Technique
