Secondly, fundamental 3g technologies, concepts, structure of 3g network and billing system are presented, which are the basis of subsystem design.
第二部分，介绍了3G技术的基本概念和基本常识，网络结构和计费组件构成。
Describe the systematic physics structure and overall scheme of software structure, present the key questions that the real-time online data collection and billing system realizes.
描述了系统的物理结构和软件结构总体方案，并给出了提及联机采集系统实现的关键问题。
Describe the systematic physics structure and overall scheme of software structure, present the key questions that the real-time online data collection and billing system realizes.
描述了系统的物理结构和软件结构总体方案，并给出了提及联机采集系统实现的关键问题。
应用推荐