Using SDR to embed wimax channels within the tetra framework
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In recent years there has been a move to increase the data
capabilities of TErrestrial Trunked Radio (TETRA) so as to
provide secure broadband data capabilities. An initial
enhancement (TETRA Enhanced Data Service, TEDS) has
been agreed but there is a need to access additional
spectrum. An investigation was carried out by European
Telecommunications Standards Institute (ETSI) has
concluded that a single standardised frequency band cannot
be agreed and the concept of a tuning range for enhanced
TETRA services can be deployed is gaining acceptance. In
addition to needing flexibility in frequency, the enhanced
TETRA services allows for more flexibility in the
communication modes used so as to provide adaptability in
applications. We propose that it is possible to deploy
Software Defined Radio (SDR) technologies into the
basestation to economically provide this level of flexibility, and to further extend the capability of TETRA services by deploying a WiMAX channel into the proposed TETRA tuning range and deliver true broadband data service while simultaneously support the original and enhanced TETRA
services.
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[3] Luis Abraham Sánchez-Gaspariano,et al. IEEE 802.16e Design Issues and Transceiver Architecture Selection for Mobile WiMAX Systems , 2008, 18th International Conference on Electronics, Communications and Computers (conielecomp 2008).