TD-SCDMA系统特点分析及发展演进

TD—SCDMA是我国提出的3G技术标准，同时也是被ITU所确定的三大主流标准之一。简要介绍了TD—SCDMA系统所应用的联合检测、智能天线、动态信道分配、上行同步技术及接力切换等关键物理层技术。着重阐述了对于标准演进后的增强型技术HSDPA，HSUPA的技术特点及进展，并对TD—SCDMA技术的发展方向作了详细的分析。最后，提出了对未来TD—SCDMA产业的展望。

Analysis of characteristics and development of TD-SCDMA system

As a standard of 3G technology proposed by China,TD-SCDMA is also one of the three main standards certificated by ITU.This paper simply introduces the key technologies applied in TD-SCDMA,such as joint detection,smart antenna, dynamic channel allocation,uplink synchronization,relay handover,etc.Characteristics and development of the enhanced technology in standard evolution,like HSDPA,HSUPA,is discussed amply.This article also analyzes the development of TD-SCDMA technology.Finally it expres-(ses) the expectation of future TD-SCDMA industry.