1. 1 April 18, 2000 7th ANNUAL IEEE TECHNICAL EXCHANGE MEETING TETRA Radio Technology for the New Century Bayan A Al-Mobarak Computer & Comms Engineering Dept

2. 2 Agenda What is TETRA Benefits of TETRA Spectral Efficiency Comparisons TETRA Network Standards TETRA System Deployment in Saudi Aramco Conclusion

3. 3 WHAT IS TETRA? TETRA : TErrestrial Trunked RAdio is the latest digital mobile communications standard from the European Telecommunication Standards Institute (ETSI) Mobile Radio open Standard Digital Speech and Data communications Provides high quality mobile radio communications that resolve the existing problems

4. 4 Benefits of TETRA Open Standard System Efficiency Professional Mobile Radio (PMR) Features Longevity

5. 5 Open Standard Multiple Sourcing System to System Roaming Very Large Market

6. 6 System Efficiency Spectral Efficiency Full Duplex Combined Voice and Data Bandwidth on Demand

7. 7 PMR Features Group Call Individual Call Telephone call Emergency Call Direct Mode Priority level Fast Call Set-Up

8. 8 PMR Features, Continued Call Authorized by Dispatcher Area Selection Access Priority Late Entry Pre-emptive Priority Call Discreet Listening

9. 9 Telephone Features Call Hold Call Completion to Busy Subscriber Transfer of Control Include Call

10. Comparison of TETRA spectrum efficiency with other technologies 200kHz bandwidth GSM Half-rate GSM (future) PMR 25 kHz PMR 12.5 kHz APCO25 (US) Tetrapol TETRA 200 kHz carrier 8 channels 200 kHz carrier 16 channels 25 kHz channel 8 channels / 200 kHz 12.5 kHz channels 16 channels / 200 kHz 25 kHz carrier 4 channels / carrier 32 channels / 200 kHz

11. 11 Example of TETRA network - Gateway External Networks PABX, ISDN, Internet etc. NMS DC SwMi HPR Central Logging Recorder VMR SwMi: Switching and Management infrastructure SCN: Switching and Control Node NMS: Network Management System DC: Dispatch Console BS; Base station VMR:Vehicular Mounted Radio HPR: Hand-portable Radio BS

12. TETRA Standards Mobile Stations Direct Mode TETRA Network Other TETRA Network ISI Voice And Data PEI PABX, PSTN, ISDN, PDN Gateway AI TSI

13. 13 TETRA System Deployment in Saudi Aramco The new system will enhance the following: Network congestion up to date technology feature Improve quality Interference Overcome the discontinued manufacturers support

14. 14 Conclusions TETRA is the technology that will take the radio professional users to the new millennium Interoperability testing is creating real competition TETRA provides the demanding multimedia services needed now and the future Data applications offer concrete benefits Completely secure networks can be made with TETRA