The Hindu Business Line : C-DAC develops digital mobile radio technology solution

THE Centre for Development of Advanced Computing (C-DAC), Thiruvananthapuram, has successfully developed a totally indigenous solution for digital mobile radio technology based on TETRA standard.

TETRA stands for Terrestrial Trunked Radio, which is a professional mobile radio standard devised by the European Telecommunications Standards Institute to bring together cellular telephony, packet data and digital mobile radio services on an open cellular platform.

The C-DAC solution covers technology for the TETRA terminal equipment and infrastructure. This marked the only indigenous effort carried out by any R&D institution in the country aimed at providing a total solution in the area of advanced digital mobile radio, C-DAC sources told Business Line.

Three TETRA-based products have been developed under a project jointly initiated by the Department of Information Technology and Bharat Electronics Ltd. It also paved the way for a major export order worth millions of dollars for C-DAC. The centre is also planning a series of technology transfers in Asian countries, including China, during the next year.

Public safety and security services are among the major users of TETRA as this standard has been laid down with emphasis on addressing the specific needs of these sectors. TETRA offers fast call set-up time, excellent group communication support, direct mode operation between radios, packet data and circuit data transfer services, frequency economy, and excellent security features.

TETRA trunking facility provides a pooling of all radio channels, which are then allocated on demand to individual users, in both voice and data modes. By providing national and multi-national networks, national and international roaming can be supported, the user being in constant seamless communication.

TETRA also supports point-to-point and point-to-multi-point communications both through TETRA infrastructure and by the direct mode without infrastructure. Police, fire and rescue organisations, border guards, first aid and ambulance units, customs, prison administration and other authorities form the bulk of the TETRA users who get access to voice, data, graphics and image concurrently.

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