本文介绍了B3G发展中由WCDMA、cdma 2000引出的两条演进路线，并对演进过程中的各种技术从技术区别和网络实现等方面做了进一步的分析。

-With the rapid development of mobile communication technology,an increasing number of countries

and organizations pay attention to the development of B3G.This article describes the two routes of

the evolution from WCDMA and cdma 2000 during the development of B3G,and analysis further technical differences and implementation of networks.