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An IP QoS architecture for 4G networks

This paper describes an architecture for differentiation of Quality of Service in heterogeneous wireless-wired networks. This architecture applies an “all-IP” paradigm, with embedded mobility of users. The architecture allows for multiple types of access networks, and enables user roaming between different operator domains. The architecture is able to provide quality of service per-user and per-service An integrated service and resource management approach is presented based on the cooperative association between Quality of Service Brokers and Authentication, Authorisation, Accounting and Charging systems. The different phases of QoS-operation are discussed. The overall QoS concepts are presented with some relevant enhancements that address. | An IP QoS architecture for 4G networks T om iot 4 1 I Jo m o 1 A Zi K 4ot m i mo 2 L i t i T A m no 1 3 ot 1 o Do t i o 4 Janusz Gozdecki Piotr Pacyna victor Marques rui l. Aguiar Carlos Garcia Jose Ignacio Moreno4 Christophe Beaujean5 Eric Melin5 Marco Liebsch6 1 AGH University of Technology Kraków Poland pacyna gozdecki @kt.agh.edu.pl 2 Portugal Telecom Inovaçao 3810-106 Aveiro Portugal victor-m-marques@ptinovacao.pt 3 Instituto de Telecomunicaçôes Universidade de Aveiro 3810 Aveiro Portugal ruilaa@det.ua.pt 4 Universidad Carlos III de Madrid Spain cgarcia jmoreno @it.uc3m.es 5 Motorola Labs Paris France Christophe.Beaujean@crm.mot.com erik@motorola.com 6 NEC Laboratories Heidelberg Germany marco.liebsch@ccrle.nec.de Abstract This paper describes an architecture for differentiation of Quality of Service in heterogeneous wireless-wired networks. This architecture applies an all-IP paradigm with embedded mobility of users. The architecture allows for multiple types of access networks and enables user roaming between different operator domains. The architecture is able to provide quality of service per-user and per-service An integrated service and resource management approach is presented based on the cooperative association between Quality of Service Brokers and Authentication Authorisation Accounting and Charging systems. The different phases of QoS-operation are discussed. The overall QoS concepts are presented with some relevant enhancements that address specifically voice services. In particular EF simulations results are discussed in this context. 1 INTRODUCTION Availability of the network services anywhere at anytime can be one of the key factors that attract individuals and institutions to the new network infrastructures stimulate the development of telecommunications and propel economies. This bold idea has already made its way into the telecommunication community bringing new requirements for network design and envisioning a change of the current model of