Understanding the issues of providing IMS capabilities on different access networks: the use of policies for QoS provision

Authors:
F. C. Gouveia;M. Sher;T. Magedanz
Affiliations:
Fraunhofer Institute FOKUS, Technical University Berlin, Berlin, Germany;Fraunhofer Institute FOKUS, Technical University Berlin, Berlin, Germany;Fraunhofer Institute FOKUS, Technical University Berlin, Berlin, Germany
Venue:
ICCOM'05 Proceedings of the 9th WSEAS International Conference on Communications
Year:
2005

Citing 2
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Services in interworking 3G and WLAN environments

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Policy-based QoS-management architecture in an integrated UMTS and WLAN environment

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Abstract

The third Generation Partnership Project (3GPP) aimed to merge two of the most successful paradigms in communications: cellular networks and the Internet. Within the IP Multimedia Subsystem (IMS) the 3GPP specified a comprehensive and service oriented architecture that includes session based QoS in IP, charging mechanisms and offers standardized interfaces for application service integration and seamless interactions with legacy services. To extend the IMS capabilities to other technologies, for instance a WLAN network, we analyse policy-based management issues in this scenario. We focus on issues relating to the Policy Decision Function (PDF) and describe a simple architecture for interworking WLAN with the IMS that is being implemented at Fraunhofer FOKUS Institute [17].