The Design And Practice On Optimization Of Gprs Billing Delay

With the rapid development of data services, especially these data services based on TD-SCDMA network, wireless data services showing a high-speed growth, Since the system capacity and related parameters did not reach the optimal configuration, that result in high arrears and increases of customer complaints. So, exploring how to shorten the delay of GPRS billing, researching the new optimization scheme of GPRS billing delay, improving customer satisfaction and Increase the effectiveness of the company have the practical significance for further improve China mobile’s the core competitive power in new3G environment.The paper first simply introduces each important network element of GPRS core network,these network element include GPRS terminal、PCU、SGSN、GGSN、DNS、 CG、FireWall、Lan Switch and the five types of Call Detail Record of GPRS, and the charging function and billing features of SGSN, GGSN and CG. it introduces the original CDR field of SGSN&GGSN and the merged CDR field of CG simultaneously, because China Mobile use G-CDR as Domestic customers Billing basis, S-CDR used as International Roaming customers Billing basis, So the paper mainly reduce G-CDR billing delay.Then it introduces the present GPRS billing delay situation of china mobile communication Corporation and the improve objective, And defined some Key performance indicators, according to these KPI, we count the present GPRS billing delay situation of ChongQing mobile communication Corporation(Include customer complaints and customer arrears), and formulate the improve objective. And from the GPRS Core Network, China Mobile Service Aware Charging and the BOSS system three aspects analyzes the whole process of call list treatment in detail, found the reason of each aspect that may lead to the billing delay,and according to the result from the GPRS Core Network, China Mobile Service Aware Charging and the BOSS system three aspects formulate the Optimization scheme, the optimization measures are taken. Finally, the results of the GPRS billing delay optimization were tested, which including the following five points:the delay of G-CDR from users deactive PDP Context to arrive the BOSS system, the internal processing delay of BOSS system, the delay of G-CDR from users deactive PDP Context to BOSS system complete manipulation, the complaints resulted from the GPRS billing delay, the proportion of arrears. All the above aspects surpassed the initial optimization Goals, the proposed optimization scheme cut down the GPRS billing delay largely so that it can achieve good result from the perspective of Users’ apperceiving and interests of the company.The main achievements of the paper:It based on analysis and research the process of GPRS billing and introduces various possible factors about GPRS billing delay, Provides solutions to shorten the GPRS billing delay under the current network condition, this has reference for Other branches of China Mobile.