标题: | Reducing credit re-authorization cost in UMTS Online Charging System |
作者: | Sou, Sok-Ian Lin, Yi-Bing Jeng, Jeu-Yih 资讯工程学系 Department of Computer Science |
关键字: | credit reservation;streaming services;Online Charging System (OCS);UMTS |
公开日期: | 1-九月-2008 |
摘要: | During an online charging General Packet Radio Service (GPRS) session, a number of mid-session events, such as changes of Quality of Service (QoS), could dynamically affect the rating of the in-progress service. When such events occur, the GPRS support node needs to re-authorize the granted credit units with the Online Charging System (OCS). This paper proposes a threshold-based scheme that utilizes a threshold parameter 6 to reduce the signaling traffic for the credit re-authorization procedure. By selecting an appropriate 6 value, the signaling overhead in the OCS can be significantly reduced while the inaccuracy of the credit information insignificantly increases. The mobile operator can choose appropriate parameter values in the threshold-based scheme based on our study. |
URI: | http://dx.doi.org/10.1109/TWC.2008.070403 http://hdl.handle.net/11536/8382 |
ISSN: | 1536-1276 |
DOI: | 10.1109/TWC.2008.070403 |
期刊: | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS |
Volume: | 7 |
Issue: | 9 |
起始页: | 3629 |
结束页: | 3635 |
显示于类别: | Articles |
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