Mark Edwards Principal Staff Engineer Motorola CGISS European System Design Centre

November 2002 1

Mark EdwardsPrincipal Staff Engineer

Motorola CGISSEuropean System Design Centre

TETRA Release 2 OverviewRelease 2Release 2

November 2004 Motorola

• TETRA release one in use today• What is TETRA 2 High Speed Data?• TETRA 2 opens a world of

applications• Future vision: the application world

after TETRA 2• Where are we in real life!

November 2004 Motorola

Does TETRA1 handle data?

• Database look up

• AVL

• Email

• File transfer

• Limited slow scan video

• But multimedia applications are more difficult….

November 2004 Motorola

Mission Critical Data Applications on TETRA• Today’s applications need data capacity

– Frequent messages, small payload:

• AVLS from portables and vehicles

• Database access

• Status messaging

• But some applications starting to need more data throughput– Less frequent messages, much bigger payloads

• Mug shots

• File transfer

• Slow scan video

TETRA Single Slot Packet Data

TETRA Multi Slot Packet Data

November 2004 Motorola

Evolution: Applications vs. TETRA

TETRA 1 Circuit Data

TETRA 1Short Data Services

TETRA 1Single Slot Packet Data

TETRA 1 Multi-slot Packet Data

TETRA 2High Speed Data

Database search

AVL

Email

File transfer e.gStill images

Slow scan video

QoS managed video

Not suitable Suitable Effective

today

November 2004 Motorola

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 system– i.e. can receive TETRA 1 calls on TEDS channels

• Technology selected for TEDS use – Multi-carrier QAM (Quadrature Amplitude Modulation) in all bands– D8PSK in 25 kHz

TAPS - an alternative technology based on GSM EDGE - has now been abandoned

November 2004 Motorola

High Speed Packet Data Deployment

• TEDS will be the solution for mission critical• A range of channel bandwidths available in the

standard– Offer a single TEDS channel at each site, in addition to

TETRA 1 voice channels– Provision channel bandwidth based on number of users

and their data application requirements

• The modulation scheme can adapt to radio transmission conditions

November 2004 Motorola

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 schemes64QAM16QAM4QAM

D8PSK (25 kHz)

100 kb/s

Framing Rate

November 2004 Motorola

How does this compare with TETRA 1?

Range (km)

Modulation schemes64QAM16QAM4QAM

D8PSK (25 kHz)

600 kb/s

500 kb/s

300 kb/s

200 kb/s

400 kb/s

100 kb/s

Framing Rate

150 kHz

100 kHz

50 kHz

25 kHz

TETRA 1

November 2004 Motorola

The Key Points

• Modulation scheme can adapt dynamically to RF conditions

• As soon as the TETRA 1 curve starts to fall off, voice service is gone– but data can still work with quite high MER (Message

Error Rate) numbers due to retransmissions. – For TETRA 1, the packet data coverage can be better

than voice coverage– For TETRA 2, the same trend is visible

November 2004 Motorola

TETRA2 brings new capabilities … to FireCheck floor plans of burning buildingTETRA 1Database of plans held on local CD in cab

TETRA 2Updated plans can be downloaded as appliance is en 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

November 2004 Motorola

TETRA2 brings new capabilities … to AmbulanceTransmit an ECG trace from ambulance to doctor in hospitalTETRA 1Transmit compressed ECG

TETRA 2Less compression used means more details on ECG

More accurate diagnostic for rare heart conditions

Transmit pictures from crash scene so doctors can predict injury typeTETRA 1still images or slow scan video

TETRA 2More detailed video image

Doctors can make more accurate predications

November 2004 Motorola

Other Additional Applications of TETRA 2TETRA 2 Data Application User Benefits

Police Mobile surveillance camera that doesn’t alert the suspect

Greater detail can prove vital to remotely monitor the operation

Transport Live updates of arrival/departures 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

Increased 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

November 2004 Motorola

The Power of TETRA 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 includes TETRA 1

November 2004 Motorola

Planning for TETRA 2

• High channel bandwidth gives high data capacity– Supports the high data rates needed by multimedia

applications– Gives better trunking efficiency for network operators –

means lower bills for end users?

• Application developers need to design for– different data rates available under different conditions– Handing over seamlessly as user moves around network– Being aware of cell reselection criteria

November 2004 Motorola

TETRA 2 Data Application influences Cell Handover

Application Type

ApplicationRequirement

Network Requirement

TETRA 2 Cell re-selection criteria

Non-real time (e.g. Database browsing, image transfer)

Medium access time, medium message delivery

Best trunking efficiency

New cell with highest data capacity

Real-time applications (e.g. status)

Fast access time, fast message delivery

Low error rate on the radio interface

New cell with best signal strength

November 2004 Motorola

TETRA 2 Standardisation

• Stable Technical Standard for TETRA 2 due from ETSI by end 2004

• The Technical Standard will then enter the Public Enquiry (PE) phase, which is– Chance for final comments by those organisations not

participating in specification work– High-level assessment of the standard, does it meet goals, are

goals still valid etc– Last minute check of technical details

• PE comments can be submitted via National Standards Organisations

• Successful PE phase results in a Harmonised Standard (due Q4 2005)– Base Stations and subscribers can be CE marked and placed

in the European Economic Area marketplace

November 2004 Motorola

Benefits of Integrated Voice and Data in TETRA• Voice and data applications on the same radio

– Less equipment to carry

• Common security measures for all services– Government approved security measures rather than just

commercial level

– Secure authentication and encryption for signalling, voice and data

• User benefits from high level of security for all data traffic– No need to worry about which applications are allowed to use

which data service

– No need to worry that users might be sending sensitive information over unsecured data services

November 2004 Motorola

Conclusion

• TETRA release 1 already enables sophisticated mission critical data applications– and is already being used today to save lives

• TETRA 2 will enhance existing data capabilities and enable new advanced applications– Standards are nearly ready, end users should start

influencing manufacturers by explaining their future needs and requirements

– TETRA users and manufacturers need to start planning now and lobbying for TETRA 2 spectrum

November 2004 Motorola

TETRA is an expanding universe

From Big Bang through to …TETRA 3 and beyond

Come back next year to see what happens….