An Efficient Scheme for JRRM and Spectrum-Sharing Methods

Didier Bourse, Lucas Elicegui, David Grandblaise and Nicolas Motte

Motorola Labs, European Communications Research Lab, Paris, France

Reconfigurable Software Defined Radio (SDR) equipment is seen as the key technology in the evolution of telecommunications, terminals being able to support several Radio Access Technologies (RATs) and provide seamlessly and transparently to users a large panel of applications that could only be available today with different devices, each being dedicated to a specific RAT. Currently, RATs are available through different systems such as Cellular (i.e. GSM, IS-95, UMTS), Broadcast (i.e. DYB-T), or WLAN (e.g. HIPERLAN/2, IEEE 802.11) systems. Each of these systems has been designed initially for specific services and applications in identified operating areas. The future of telecommunications will be characterised by the convergence of those technologies (beyond the 3G – B3G perspective) and the possible introduction of new specific RATs (e.g. 4G, UWB). The future challenge will consist in building harmoniously and conjointly on those heterogeneous technologies. Therefore, SDR technology has been identified as the means to achieve the desired inter-operability. However, to reach the full benefit of this telecommunication evolution, more flexibility will also be needed in current spectrum management rules, and practices will need to evolve and accompany the SDR technological evolution. Thus, ...

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