Policy-based QoS architecture in the IP multimedia subsystem of UMTS

Authors:
Wei Zhuang;Yung Sze Gan;Kok Jeng Loh;Kee Chaing Chua
Affiliations:
Siemens Private Limited;-;-;-
Venue:
IEEE Network: The Magazine of Global Internetworking
Year:
2003

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Abstract

The third-generation mobile system, or Universal Mobile Telecommunication System, will offer IP-based multimedia applications and services with end-to-end QoS guarantee. The key part providing these services is the policy-based QoS control architecture in the IP multimedia subsystem (IMS). In this tutorial we describe the network entities involved in the policy-based QoS architecture, their interactions to realize guaranteed QoS in the UMTS network, and the communication interfaces employed in the interactions.