Feasible load regions for different RRM strategies for the enhanced uplink in UMTS networks

Authors:
Andreas Mäder;Dirk Staehle;Tuo Liu;Hans Barth
Affiliations:
University of Würzburg, Department of Distributed Systems, Würzburg;University of Würzburg, Department of Distributed Systems, Würzburg;University of Sydney, School of Information Technologies, Australia;T-Systems Enterprise Services GmbH
Venue:
Proceedings of the Third international EURO-NGI network of excellence conference on Wireless systems and mobility in next generation internet
Year:
2006

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Abstract

The UMTS enhanced uplink or high speed uplink packet access (HSUPA) provides efficient mechanisms for the radio resource management of radio bearers for best effort traffic. The resources available for the enhanced uplink users depend on several factors like the spatial configuration of the mobiles in the cells, the number of QoS users and the implemented RRM strategy. In this work, we provide a model for the calculation of the resources assigned to the enhanced uplink users which also allows the inclusion of the maximum transmit power and down-grants for the reduction of the other-cell interference. We further show the impact of centralized and de-centralized radio resource management strategies on the feasible load region.