The Research For Online Charging System Based On 3G

With the adventing of the 3G Era, a variety of 3G business would bring people more and more convenient. The complexity of 3G business will have the business support system of the telecom operator a tremendous challenge. The core of the business support system is the charging system. Therefore, the charging systems will face even higher requirements.In this paper, first it gives a detailed introduction to the type of business, the charging features, the condition of 3G charging at home and abroad, pointing out that integration and real-time charging on 3G is the trend of development. It analyzes the existing architecture of the charging system and the existing problems, as well as the causes of problems, proposing the necessity of online charging system. The second, it gives the distinction between offline and online charging. It also has an in-depth study of the 3GPP-defined reference to the online charging system . Then it mades an convergent online charging system solution based on current trend of charging, describing the main components of the system and advantages of the system, analyzing the the position and function that OCS has in the system. And then, it gives a detailed functional module design and interface design for the OCS, the core of the convergent online charging system. Finally, it summarizes the work of the task, as well as the outlook for the future 3G charging.The convergent online charging system realizes the integration of multi-service charging , the integration of prepaid and postpaid way, the flexible capability of real-time charging. It adapts to the needs of charging based on 3G.