This presentation was prepared to introduce the attendants of BICSI Dubai 2014 to the TETRA Digital trunking technology, having considered that an important part of the audience were not familiar with the subject. It starts with the history of two ways communications, and the evolution of the customer requirements and the technology. There is a brief comparison between TETRA and GSM, given the fact that everybody is used to the digital telephony services, and many of the TETRA users are familiar with just a part of the services offered by that technology. The last part focuses on a real case of use, where TETRA was the only technology that could comply with the demanding requirements of the customer (security, reliability, nationwide solution, data). I wish you will enjoy it!. Regards Luis Jose Gil

1. TETRA
Dubai, 10th April 2014.
Luis Jose Gil, CTO TSU Ltd
TETRA. Why and what for?

2. 1.History of Professional Mobile Radio
• Conventional
• ‘Virtual’
• Repeaters
• Standards
• TETRA at last!
2.And TETRA offers…
3.A real case. Telecontrol
Index

3. 1. History
A two-way radio is a radio that can both transmit and
receive
A two-way radio is a radio that can both transmit and
receive
Australia, 1923 (…) The Victoria Police were the first in the
world to use wireless communication in cars, putting an
end to the inefficient status reports via public telephone
boxes
Australia, 1923 (…) The Victoria Police were the first in the
world to use wireless communication in cars, putting an
end to the inefficient status reports via public telephone
boxes

4. 1. History
Two-way radio
One channel – one frequency
Professional Mobile Radio
Two-way radio
One channel – one frequency
Professional Mobile Radio
Efficient communicationEfficient communication
only one station to
transmit at a time
only one station to
transmit at a time
Immidiate reportingImmidiate reporting

5. Users!!Users!!
Capacity?Capacity?
Officer Officer Officer
1 2 3
1 2 3
1. History

6. 1. History
Virtual channels.
(EU) Selective channels. Logics embedded into the radio.
A preprogrammed 5-tone opens speaker of the chosen
partners.
Virtual channels.
(EU) Selective channels. Logics embedded into the radio.
A preprogrammed 5-tone opens speaker of the chosen
partners.
One frequency – One channel
Fixed RF channels, static frequencies
One frequency – One channel
Fixed RF channels, static frequencies
1
2
3
f1
f2
f3
1
2
3
f1

7. 1. History
What to do??What to do??
Area!!Area!!

8. A repeater forwards every speechA repeater forwards every speech
1. History. Repeater

9. A repeater forwards every speechA repeater forwards every speech
1. History. Repeater

10. Nationwide?Nationwide?
BackboneBackbone
1. History. Repeater

11. FrequenciesFrequencies
Trunked!!Trunked!!
Virtual channelsVirtual channels
RepeatersRepeaters
1 f1
f1 1 2
1. History. Trunking

12. 1. History. Standards
Compatible?Compatible?

13. STANDARDS
The European
Telecommunications
Standards Institute
The European
Telecommunications
Standards Institute
Market !!Market !!
1. History. Standards

14. ETSI StandardETSI Standard
DigitalDigital
TrunkedTrunked
RadioRadio
Multiple manufacturersMultiple manufacturers
-Encryption
-Data
-Encryption
-Data
-Encryption
-Data
-Nationwide networks
-Encryption
-Data
-Nationwide networks
2. And TETRA offers…

15. 2. And TETRA offers…
Voice Services:
Common
Indivicual Calls (*)
Supplementary Services
DGNA – Remote Terminal programming
Common
Indivicual Calls (*)
Supplementary Services
DGNA – Remote Terminal programming
TETRA
Group Calls (PMR)
Priority (Emergency, Busy Queing,…)
Authentication & Encryption (*)
DMO – Direct Mode
TETRA
Group Calls (PMR)
Priority (Emergency, Busy Queing,…)
Authentication & Encryption (*)
DMO – Direct Mode
Data Services:
Common
(SMS) Short Data ( ≥ GSM !! )
(PDP) Native IP connectivity (≈GPRS)
Common
(SMS) Short Data ( ≥ GSM !! )
(PDP) Native IP connectivity (≈GPRS)
TETRA
Circuit mode
A point-to-point dedicated data
channel. ( ≠ GSM !!)
TETRA
Circuit mode
A point-to-point dedicated data
channel. ( ≠ GSM !!)

16. • Starting in 1997.
• Hundreds of networks in
• Europe
• Asia
• Middle East
• South America
• Initially public safety, economics (sharing), autonomy, interoperability for emergencies.
• Other markets:
• Transportation (fleets, airports, trains).
• Utilities
• Military
• Many independent manufacturers
2. And TETRA offers…

17. 3. A real case
Requirements:
• Truck tracking and telecontrol
• Nationwide solution
• Secure wireless network. Encryption
• Driver authentication required
• Command & control authorization
• Truck GPS tracking
• Exclusion areas
• Emergency telecontrol
Requirements:
• Truck tracking and telecontrol
• Nationwide solution
• Secure wireless network. Encryption
• Driver authentication required
• Command & control authorization
• Truck GPS tracking
• Exclusion areas
• Emergency telecontrol

18. GPS
Engine
Identification
Command & Control
3. A real case

19. TETRA. Trends?
LTE?LTE?

20. TETRA
• Thanks for your attention!
• Please!, ask me your questions!