第三代移动通信主流技术

Mainstream techniques in the third generation of mobile communication

移动通信的发展由第一代模拟调频(FM)和频分多址(FDMA)为主要特征的移动通信系统,经过以时分多址(TDMA)和码分多址(CDMA)为特征的第二代移动通信系统及以GPRS和CDMA2000-1X为代表的第二代半通信系统,目前已进入以CDMA为主流技术的第三代移动通信系统。主要包括3种:W-CDMA,CDMA2000和TD-SCDMA。对这三种技术的特点作了分析和比较,论述了适合国情的自主产权的TD-SCDMA系统特点。

Mobile communication is a developing hot point and it has gone through the developing phases such as the first generation, the second generation and the 2.5 generation. The third generation mobile communication system is going into markets with mature technologies. Discussions on technical features of various generations of communication systems are carried out. The mainstream techniques in the third generation of mobile communication-various kind of code division multiple access are analyzed and compared. The development and techniques route of the third generation of mobile communication has been proposed suitable to Chinese condition.