Dissertation
Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications > Cellular mobile communications systems (mobile phones, mobile phone handsets ) > Time Division Multiple Access (TDMA) mobile communications

Research and Implementation of GSM International Roaming Fraud Monitoring System

Author ShiJianJun
Tutor SongMaoQiang;LiLianXiang
School Beijing University of Posts and Telecommunications
Course Software Engineering
Keywords International roaming Anti-fraud NRTRDE A little batch price
CLC TN929.532
Type Master's thesis
Year 2010
Downloads 25
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Mobile communications operators and users of the increasingly close relationship with the market economy and the rapid development of information technology, business support system requirements are also increasing. How to prevent the service process, particularly during international roaming services, the user is malicious fraud or misuse of to reduce malicious arrears and loss of international settlement is an important issue facing the national mobile communications operators. GSMA proposed a new solution NRTRDE (Near Real-Time Roaming Data Exchange, a quasi-real-time roaming data exchange), international roaming interviewed real-time processing operators the communication billing records of roaming user must be the end user communication The four hours CDR (Call Detail Record Call Detail Record) sent to international roaming users attribution operators. Vest carriers based on the CDR timely analysis of each roaming user the roaming activity information, for anti-fraud control the abnormal communication behavior, according to the user's line of credit. NRTRDE implementation rules, China Unicom GSM international roaming anti-fraud monitoring system decided by the Group headquarters organization building. As a construction project manager of China Unicom, the author is responsible for coordinating the construction side Neusoft and other resources, and to organize the system needs analysis, overall design, and acceptance testing. Stage of this project demand raised and systems design of NRTRDE solutions in-depth study and comparative analysis with previous the HUR high reporting of the anti-fraud monitoring system of China Unicom's GSM international roaming and international roaming billing distribution of system functionality and interface relations proposed solutions. Years of operating experience, a little batch of price simplified construction program of the provincial company, and parameter information in real-time feedback and real-time monitoring of system operation status and other key functions constructive comments. NRTRDE solutions combined with little batch price handling mechanism, on the one hand, significantly improved the efficiency of data processing, to ensure the real-time nature of the processing of the international roaming fraud prevention; the other hand, by a multi-point processing can be simplified to the point processing, to avoid waste of resources while to accelerate the overall progress of the transformation of the system, reducing the cost of renovation. Currently, China Unicom has enabled international roaming anti-fraud monitoring system within the company, real time Statistics the various branches roaming timely data transfer rate, problem analysis to solve the existing data processing and transmission delay. Meanwhile, China Unicom is with foreign carriers negotiate NRTRDE supplement agreement, after the signing of the agreement, China Unicom GSM international roaming anti-fraud monitoring system put into use overall, China Unicom and international roaming partners to provide the high efficiency of the anti-fraud protection. Practice has proved that China Unicom's GSM international roaming completely anti-fraud monitoring system to meet the requirements of the building, the efficiency and accuracy of data processing have reached the goal of NRTRDE solution. Has a very important significance to the construction of anti-fraud monitoring system for international roaming, will play an important role in order to effectively safeguard the interests of the operators, standardize communications users of Conduct.

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