Research Article
Design and Implementation of an Extensible Online Charging Architecture for the Open IMS Playground
@INPROCEEDINGS{10.1109/TRIDENTCOM.2007.4444685, author={Shengyao Chen and Peter Weik}, title={Design and Implementation of an Extensible Online Charging Architecture for the Open IMS Playground}, proceedings={3rd International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TridentCom)}, publisher={IEEE}, proceedings_a={TRIDENTCOM}, year={2008}, month={2}, keywords={Diameter; Credit Control; IMS Online Charging}, doi={10.1109/TRIDENTCOM.2007.4444685} }- Shengyao Chen
Peter Weik
Year: 2008
Design and Implementation of an Extensible Online Charging Architecture for the Open IMS Playground
TRIDENTCOM
IEEE
DOI: 10.1109/TRIDENTCOM.2007.4444685
Abstract
This paper outlines the design and implementation of a prototypical IMS online charging architecture compliant to 3GPP Rel. 6 specifications for the Open IMS Playground of the Fraunhofer Institute FOKUS. It describes the integration of an IMS Gateway Function (IMS GWF) into a SIP application server to be able to carry out IMS session control for prepaid subscribers as well as service level credit management. After a brief introduction to the IMS charging concepts, the paper explains the design of the integrated IMS GWF and of the extendable Online Charging Server. It highlights the implementation details of the two components and gives some deployment and operation details. The implemented IMS online charging architecture was validated with the real-time supervision of an IMS voice call service between two subscribers.