Modeling credit reservation procedure for UMTS online charging system

Sok Ian Sou; Hui-Nien Hung; Yi-Bing Lin; Nan Fu Peng; Jeu Yih Jeng

doi:10.1109/TWC.2007.060250

Modeling credit reservation procedure for UMTS online charging system

Sok Ian Sou^*, Hui-Nien Hung, Yi-Bing Lin, Nan Fu Peng, Jeu Yih Jeng

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	4129-4135
Number of pages	7
Journal	IEEE Transactions on Wireless Communications
Volume	6
Issue number	11
DOIs	https://doi.org/10.1109/TWC.2007.060250
State	Published - 1 Nov 2007

Keywords

Charging
IP multimedia core network subsystem (IMS)
Prepaid services
Universal mobile telecommunications system (UMTS)

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10.1109/TWC.2007.060250

Cite this

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title = "Modeling credit reservation procedure for UMTS online charging system",

abstract = "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.",

keywords = "Charging, IP multimedia core network subsystem (IMS), Prepaid services, Universal mobile telecommunications system (UMTS)",

author = "Sou, {Sok Ian} and Hui-Nien Hung and Yi-Bing Lin and Peng, {Nan Fu} and Jeng, {Jeu Yih}",

year = "2007",

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doi = "10.1109/TWC.2007.060250",

language = "English",

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T1 - Modeling credit reservation procedure for UMTS online charging system

AU - Sou, Sok Ian

AU - Hung, Hui-Nien

AU - Lin, Yi-Bing

AU - Peng, Nan Fu

AU - Jeng, Jeu Yih

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AB - 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.

KW - Charging

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KW - Prepaid services

KW - Universal mobile telecommunications system (UMTS)

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Modeling credit reservation procedure for UMTS online charging system

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