標題: Modeling credit reservation procedure for UMTS online charging system
作者: Son, Sok-Ian
Hung, Hui-Nien
Lin, Yi-Bing
Peng, Nan-Fu
Jeng, Jeu-Yih
統計學研究所
資訊工程學系
Institute of Statistics
Department of Computer Science
關鍵字: charging;IP multimedia core network subsystem (IMS);prepaid services;universal mobile telecommunications system (UMTS)
公開日期: 1-Nov-2007
摘要: The IP Multimedia Core Network Subsystem (IMS) provides real-time multimedia services for Universal Mobile Telecommunications System (UMTS). Through Recharge Threshold-based Credit Reservation (RTCR) mechanism, prepaid IMS services can be supported by the Online Charging System (OCS) in UMTS. In RTCR, when the remaining amount of prepaid credit is below a threshold, the OCS reminds the user to recharge the prepaid account. It is essential to choose an appropriate recharge threshold to reduce the probability that the in-progress service sessions are forced-terminated. An analytic model is developed to investigate the performance of RTCR for the OCS. Based on our study, the network operator can select the appropriate parameter values for various traffic conditions.
URI: http://dx.doi.org/10.1109/TWC.2007.060250
http://hdl.handle.net/11536/10198
ISSN: 1536-1276
DOI: 10.1109/TWC.2007.060250
期刊: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
Volume: 6
Issue: 11
起始頁: 4129
結束頁: 4135
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