Tutorials

 T10 - QoS and Radio Resource Management in UTRA


Speakers
Oriol Sallent, Universitat Politècnica de Catalunya
Duration
1/2 Day
Start Time
14h00
Abstract
The evolution of the end user needs towards multimedia applications has pushed the wireless community to conceive the so called third generation (3G), where a very large amount of both circuit switched services and packet switched services for voice and data, at different bit rates and with a broad range of different QoS requirements, will be provided. In this context, the definition and assessment of suitable Radio Resource Management (RRM) strategies for the UTRA segment of UMTS is a key issue for achieving the expectations created on 3G technology. RRM functionalities are very important in the framework of 3G systems because the system relies on them to guarantee a certain target QoS, to maintain the planned coverage area and to offer a high capacity. Moreover, RRM functions can be implemented in many different ways, this having an impact on the overall system efficiency and on the operator infrastructure cost, so that definitively RRM strategies will play an important role in a mature UMTS scenario. Additionally, RRM strategies are not subject of standardisation, so that they can be a differentiation issue among equipment producers and operators.

The tutorial deals with the following issues:

Introduction to UMTS and QoS
- Radio interface overview
- QoS architecture, QoS classes and parameters
- Reference Radio Access Bearers

Radio Resource Management (RRM) functions
- Admission control
- Load control
- Packet scheduling
- Handover
- Power control

Radio Resource Management (RRM) algorithms
- Examples
- Simulation results

Radio Resource Control (RRC) protocol
- RRC to support RRM functionalities
- Examples


Short Biography of the Speaker(s):

Dr. Oriol Sallent
is Associate Professor at the Universitat Politècnica de Catalunya. His research interests are in the field of mobile communication systems, especially packet radio techniques, spread-spectrum systems, radio resource and QoS management.. He has published several papers on these topics in IEEE journals and conferences. He has participated in many research projects and consultancies funded by either public organisations or private companies. Regarding RRM in 3G systems, he is currently participating in the IST ARROWS project as well as in a UMTS-RRM project for a spanish operator. He received the Doctorate Award from the Telecommunication Engineer Association of Spain in 1997 for his Ph.D. dissertation on multiple access protocols for CDMA-based systems.


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