current developments in tetra k.-h. (charly) hengevoß board member tetra mou association
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Current developments in TETRA K.-H. (Charly) Hengevoß Board Member TETRA MoU Association Rohill Engineering B.V. Fire Exits. Agenda. TETRA – The living standard How to interconnect two TETRA systems TETRA Release 2 is more than TEDS... TETRA Release 2 – A world filled with applications - PowerPoint PPT PresentationTRANSCRIPT
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Current developments in TETRA
K.-H. (Charly) Hengevoß
Board Member
TETRA MoU Association
Rohill Engineering B.V.
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Fire Exits
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Agenda
• TETRA – The living standard
• How to interconnect two TETRA systems
• TETRA Release 2 is more than TEDS...
• TETRA Release 2 – A world filled with applications
• The future beyond TETRA Release 2
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The living standard
• Standardisation started in the late 80s• First version of air interface specification
ETSI ETS 300 392-2 ed 1 published in March 1996• First nationwide TETRA public safety network
completed in 2002• TETRA Association formed in 1995• First IOP Test certificates in 1999• Core document for TETRA Release 2,
the ETSI EN 300 392-2 V 3.1.1, published in 09/2006
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How to interconnect two TETRA systems
• European integration includes cross-border police co-operation
• Specification for harmonised radio anddata communication
• ETSI standard TETRA satisfies keySchengen requirements
• EU decision to conduct a pilot testprogramme
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Three-Country Pilot
• National sub-networks were connected in June 2003
• First tests of cross-border communications in October/November 2002
• Practical test with police forces, fire brigades, rescue services, customs and civil protection carried out in May/June 2003
• Final report published inNovember 2003
http://www.3countrypilot.com
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Does TETRA handle data?
• Database look up
• AVL
• Data transmission
• Limited slow scan video
• But multimedia applicationsare more difficult...
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Evolution: Application vs. TETRATETRA 1 Circuit Data
TETRA 1
Short Data Services
TETRA 1
Single Slot Packet Data
TETRA 1 Multi-slot Packet Data
TETRA 2
TEDS
Database look up
AVL
File transfer e.g. Still image
Slow scan video
QoS managed video
Not suitable Suitable Effektive
today
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Mission critical data applications with TETRACurrent applications require data transmission capacity
– Frequent messages, small payload• GPS position data from portables and vehicles• Database requests• Status messaging
But some applications require higher data throughput– Infrequent messages, much higher payload
• Picture of a wanted person• File transfer• Slow scan video
TETRA Single Slot Packet Data
TETRA Multi Slot Packet Data
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TETRA Enhanced Data Service - TEDS
Backward compatible with TETRA Release 1- Network integration capability
Flexible data rates and spectrum use- 25, 50, 100, and 150 kHz channels bandwidths- Can trade off data rate, spectrum and range
Integrated TETRA 1 and TEDS systems- i.e. Can receive TETRA 1 calls on TEDS channels
Technology selected for TEDS use- Multi-carrier QAM (Quadrature Amplitude Modulation) in all bandwidths- D8PSK in 25 kHz
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Gross data transmission rates for QAM
Modulation scheme
Channel bandwidths
25 kHz 50 kHz 100 kHz 150 kHz
4-QAM 38,4 76,8 153,6 230,4
16-QAM 76,8 153,6 307,2 460,8
64-QAM 115,2 230,4 460,8 691,2
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How do data, range, bandwidth vary?600 kb/s
500 kb/s
300 kb/s
200 kb/s
Range (km)
400 kb/s150 kHz
100 kHz
50 kHz
25 kHz
Modulation scheme64QAM16QAM4QAM
D8PSK (25 kHz)
100 kb/s
FramingRate
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How does this compare with TETRA 1?600 kb/s
500 kb/s
300 kb/s
200 kb/s
Range (km)
400 kb/s150 kHz
100 kHz
50 kHz
25 kHz
Modulation scheme64QAM16QAM4QAM
D8PSK (25 kHz)
100 kb/s
FramingRate
TETRA 1
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The Power of TETRA Release 2
Legend:Circle size = coverage areaCircle height = data capacity
TETRA 1 + TETRA 2 at 25 kHz
TETRA 2 at 50 kHz
TETRA 2 at 100 kHz
TETRA 2 at 150 kHz
TETRA 2 at 100 kHz
TETRA 2 at 50 kHzTETRA 2 at 150 kHz
All TETRA 2 sites include TETRA 1
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The news in TETRA Release 2
• New speech codec
• USIM requirement for TETRA
• Interworking and Roaming with other networks „3G“
• Enhancement of the air interface
• Extension of operating range of TETRA• Support for further requirements (e.g. location
information)
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TETRA Release 2 brings newcapabilities to fire
Floorplans of burning buildingsTETRA 1Database of plans held on CD in cab
TETRA 2Updated plans can be downloaded as appliance is on route
Fire fighters get latest information
Check database of hazardous chemicalsTETRA 1Text based results from database search
TETRA 2Text and image results from database search
Fire fighters get clearer information
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TETRA Release 2 brings newcapabilities to AmbulanceTransmit ECG trace from ambulance to doctorin hospitalTETRA 1Transmit compressed ECG
TETRA 2Less compression means more details on ECG
More accurate diagnostic for rare heart conditions
Transmit pictures from crash sceneTETRA 1Still images or slow scan video
TETRA 2More detailed video images
Doctors can make more accurate predictions
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TETRA 2 Data Applications
User Benefit
Police Mobile surveillance camera that doesn‘t alert the suspect
Greater details can prove vital to remotely monitor operations
Transport Live update of arrival/departure boards
More relevant and accurate information to passengers
Transport Check image database to see manifests, passenger lists etc.
Helps reduce smuggling of goods and people
Oil, Gas & Utilities
Camera monitoring at very remote locations to check on lone workers
Increase safety for remote workers
Oil, Gas & Utilities
Camera monitoring of areas at risk – used to supplement telemetry data
Faster and more accurate understanding of events
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Status of TETRA Release 2
• Core document EN 300 392 – 2 v 3.1.1 has been delivered 20.09.2006.
• Work on related aspects as e.g. PEI almost completed
• European Regulators working on frequency allocation
• Manufacturers started development
• 27th/28th March 2007 a user/manufacturer workshop on prioritising the introduction takes place in Bonn
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The future beyond TETRA Release 2
• Intention to describe and define functional and operational user requirements, capabilities, applications and scenarios beyond 2015
• Activities towards globalisation of future telecommunications standardisation work
- Transfer of ETSI Project DAWS to the European- American joint project MESA connected with
TIA’s APCO Project 25/34
• Increasing the transparency in patents and licences- ETSI revised its own „Patent Policy“ to meet future requirements
