TD-SCDMA标准扩频扰码的原理和实现  

Principle and implementation of spread spectrum scrambler in TD-SCDMA standard

作　　者：胡冰[1] 贾向东[1] 傅海阳[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003

出　　处：《数字通信》2009年第5期20-25,41,共7页Digital Communications and Networks

摘　　要：TD-SCDMA(TD)标准的复扩频、扰码与3G其它两个标准扩频、扰码的原理和实现方法有很大的差别。CD-MA2000和FDDWCDMA均采用实数扩频、复扰码,即传统扩频扰码的概念。而TD标准却引入复扩频和加权系数、专用复扰码的应用理论和实现方案。给出TD复扩频、扰码的基本原理,并将它们的实现原理图等效为传统扩频扰码的电路形式,在此基础上初步分析了TD复扩频、扰码的主要特点。Compared with the other two 3G standards, the principle and implementation of the spectrum spreading and scrambling code in the TD-SCDMA （TD） standard has much difference. Both CDMA2000 and FDD WCDMA adopt real spectrum spreading and complex scrambling code, which is the traditional concept of spectrum spreading and scrambling code. While the TD standard brings the principle and realization of complex spectrum spreading, weighted coefficient, and dedicated complex scrambling code. This paper gives the basic principle of TD complex spectrum spreading and scrambling code. Then, the main features of the TD complex spectrum spreading and scrambling code are analyzed.

关 键 词：TD—SCDMA 复扩频 复扰码 

分 类 号：TN929.533[电子电信—通信与信息系统]