research report      name index      key word index      corresp.unit            Page in german      Imprint + Privacy Policy   

Third-party-funded project

Title:
Influences of Packet-Switched Services on UMTS Radio Network Planning

Project management at the University of Würzburg:

Participating scientists:

Abstract:
One of the main features which distinguishes the third generation UMTS network from already established second genaration mobile communcition systems like GSM is the possibility to offer a variety of different services. A lot of these in the field of mobile communications novel services base on a packet-switched technology; circuit-switched services like speech telephonie in GSM will lose importance. These services and the corresponding appliaction like web surfing or audio- and video streaming possess new quality of service requirements which a sophisticated planning and optimization of UMTS radio networks has to consider. This, however, demands a profound understanding of the influence the QoS requirement of these packet-switched services and also the traffic characteristica of the novel applications will have. In this research project source traffic models of the contemplable applications are defined and their effect on the capacity of a UMTS network are investigated using simulative and analytical methods. The overload control strategies used in UMTS networks are of particular interest as they show great differences for circuit- and packet-switched services. The effects of different overload control strategies are investigated.

Key words:
    UMTS
    Simulation
    Analytic Performance Evaluation
    Source Traffic Modelling
    Mobile Internet Access

Projekt period: from 07.2001 to 09.2002

Funding institution:
Wirtschaftsunternehmen ( T-Mobile International )

Preceding project:
UMTS1