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1April 18, 2000
7th ANNUAL IEEE TECHNICAL EXCHANGE MEETING
TETRA Radio Technology for the New CenturyBayan A Al-Mobarak
Computer & Comms Engineering Dept
2
Agenda
What is TETRA Benefits of TETRA Spectral Efficiency Comparisons TETRA Network Standards TETRA System Deployment in Saudi
Aramco Conclusion
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
Benefits of TETRA
• Open Standard
• System Efficiency
• Professional Mobile Radio (PMR) Features
• Longevity
5
Open Standard
•Multiple Sourcing
• System to System Roaming
•Very Large Market
6
System Efficiency
•Spectral Efficiency
•Full Duplex
•Combined Voice and Data
•Bandwidth on Demand
7
PMR Features
• Group Call
• Individual Call
• Telephone call
• Emergency Call
• Direct Mode
• Priority level
• Fast Call Set-Up
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PMR Features, Continued
•Call Authorized by Dispatcher•Area Selection•Access Priority•Late Entry•Pre-emptive Priority Call•Discreet Listening
9
Telephone Features
• Call Hold
• Call Completion to Busy Subscriber
• Transfer of Control
• Include Call
Comparison of TETRA spectrum Comparison of TETRA spectrum efficiency with other technologiesefficiency with other technologies
200kHz bandwidth
GSM
Half-rate GSM(future)
PMR 25 kHzPMR 25 kHz
PMR 12.5 kHzPMR 12.5 kHzAPCO25 (US)APCO25 (US)TetrapolTetrapol
TETRA
200 kHz carrier8 channels
200 kHz carrier16 channels
25 kHz channel8 channels / 200 kHz
12.5 kHz channels16 channels / 200 kHz
25 kHz carrier4 channels / carrier32 channels / 200 kHz
11
Example of TETRA network
- Gateway
External NetworksPABX, ISDN,Internet etc.
NMS
DCSwMi
HPR
CentralLogging Recorder
VMR
SwMi: Switching and Management infrastructureSCN: Switching and Control NodeNMS: Network Management SystemDC: Dispatch ConsoleBS; Base stationVMR:Vehicular Mounted RadioHPR: Hand-portable Radio
BS
TETRA Standards
Mobile Stations
DirectMode
TETRA NetworkTETRA Network
Other TETRAOther TETRANetworkNetwork
ISIVoiceAnd Data
PEI
PABX, PSTN,ISDN, PDN
GatewayAI
TSI
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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
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