TETRA Data Services & Applications

Hannu Vilppunen Warsaw June 2006 Presented by Risto Toikkanen TETRA Congress Warsaw, 13.-14.6.2006

Contents

Basic data services in TETRA The concern about data speed TETRA data applications, examples Wireless Application Protocol, WAP Towards higher data speeds Conclusions

Basic data services in TETRA

4 channels

Status messages – efficient, real time Short Data Service, SDS – text messaging + application platform IP packet data – advanced applications, opens the world of Intranet and Internet connectivity Circuit mode data – for specialized applications, rarely used 1 2 3 4 36 kbits/s gross bit rate

Carrier

Status messages

• Data sent as 16 bit numeric values • 32768 values free for use, the rest reserved for system use • Converted into text in the receiving terminal or workstation • Fast and efficient • Easy to use • Sent over control channel, do not load traffic channels

Short Data Service

• Four SDS-types specified by TETRA standard: SDS-1, SDS-2, SDS-3 and SDS 4 TL • SDS-1, -2 and -3 are fixed length (16, 32, 64 bits) • SDS-4 TL is variable length (max 1278 bits). Protocol identifier defines how SDS-4 is used, most typical use is text messaging (140/160 chars) and AVL • Data sent over control channel or traffic channel (simultaneous voice and data) • Text entry using the keypad of the phone, single device for voice and data Hello, I will be back in the ioffice in 15 minutes. I will call you then. John

OK

MM05 11:28 p12553: VIPs arriving in 5 minutes at gate 23, prepare security and transport.

OK

IP-packet data

• Similar to the GPRS service in GSM networks • Enables advanced data applications • Enables Intranet and Internet connectivity • Excellent application platform • Uses traffic channel, single slot or multiple time slots

TETRA data services enable a wide range of applications

• Database access • Image communications • Intranet/internet access • Reporting • e-mail, calendar • Workforce management • CC&C system integration • File transmission • Information push, alarm distribution • Information pull • Control and monitoring, telemetry

TETRA fullfils 95% of daily data needs

Fundamental daily services 95% Data speed Multimedia services Internet/intranet access TETRA < 28 kbps Text, images GPRS < 40kbps Text, images Yes Yes EDGE < 160kbps Text, images, video Yes 3G < 1Mbps Text, images, video Yes Complementing non-critical services 5%

Complementary wireless data services can be used to complement non-critical data services, if necessary

The concern of data speed

• Single slot IP packet data provides approximately 3 … 4 kbps payload • Multislot data increases performance but has side effects – Increased power consumption in handsets – Decreases voice capacity • Robust basic data services more important than extreme speeds especially in public safety • Majority of daily data services consist of low data volume database queries in the range of 0.5 … 10 kB per transaction •

Smart applications are more important than the raw data speed, bloated applications will eat available bandwidth, no matter how much bandwidth is available

The concern of data speed, example

• Original photo image taken with a digital camera. Original size is 1600x1200 and file size 1MByte • Pixel size of a TETRA handheld terminal typically 100 x 130 pixels • Compression and optimization for 100x130 pixel screen shrinks the 1MByte image into 7 kilobytes Optimized for handportable radio’s screen 7 kB 100 x 130 x 16 (colour) = 26 kBytes With further optimisation and compression from 26 kB to 7 kB

Example of an integrated, smart application

• Police field command application using AVL, on-board databases, status messaging, text messages and IP packet data • Minimizes over-the-air data, yet very graphics intensive and informative

Touch-screen display for ease of use

Touch screen buttons, which can be activated by the user … … or even to a on screen touch screen keyboard for easy messaging Underlaying AVL application

On screen AVL map with touch screen action buttons …

F1 Show F2 Report/His F3 Status F4 Maps/AVL F5 Messages F6 Equipment F7 Forms/En Setup

812

Free On the way At scene Transport Not in car Car chase Off-duty 811 813 814

ZOOM + ZOOM - F9 MOB

AVL-map changes into an aerial photo of the same area, when zoom-in button is pressed repeatedly …

F1 Show F2 Report/His F3 Status F4 Maps/AVL F5 F6 F7 Messages Equipment Forms/En F8 Setup Act.AVL

Add Mark Show all Vector Hide U12 A32 C14 P15 ZOOM + ZOOM - F9 MOB

F1 Show F2 Report/His F3 Status F4 Maps/AVL F5 F6 F7 Messages Equipment Forms/En F8 Setup VIP High security area C14 Act.AVL

Add Mark Show all Vector Hide U12 Security A32 Parking 1 P15 ZOOM + ZOOM - F9 MOB

Onboard static graphics information combined with dynamic location of GPS-equipped field units

Send only the necessary information over the air

• Keep high volume, ‘static’ data (maps, images, floorplans of buildings) in onboard databases • Update static data at the station using fixed LAN or WLAN • Over the air information is typically low volume: – Location information – Status of field units – Text messaging – Compressed images

More examples of applications using TETRA data services

Automatic Vehicle/Person Location, AVL / APL

• Integrated GPS in new terminals • Position of every unit in real time – Location shown on GIS at Command and control room • TETRA SDS or TETRA IP can be used to deliver location information • New ETSI LIP standard for compact SDS location information, 76 bits instead of about 200 bits

Image communication

• ”One picture paints thousand words” • TETRA IP one slot packet data is sufficient for image transmission • Image compression technologies reduce data volumes for fast transmission, e.g. JPEG2000 • Retrieve images from a database (pull) • Send images from command and control centre (push) • Increases efficiency and officer safety

1 ©NOKIA 1999 FILENAMs.PPT/ DATE / NN

Wireless Application Protocol (WAP)

• Specified to create a global protocol to work across differing wireless network technologies • WAP offers bearer independence GPRS • Optimised for the constraints of handheld devices WAP Server Application Portal 2. Locate 3. Mail 4. Report 5. Search

Link Menu

Benefits of WAP

• Single device for voice and data,no need for external devices to use data services • Instant and easy access anywhere, short handshaking delay • User-friendly interface for applications • Applications reside in serves, easy to update, no modifications needed in the handsets

Example of WAP user interface, vehicle check

POLICE WAP Login

OK

Login Police ID p89925 Password

•••••• Login

POLICE WAP Person Vehicle Fine Logout

OK

Vehicle Search Plate: JEE398 Vehicle Class: 1

Search

JEE-398 Toyota 5d RAV4 STW 1.8 ZCA26L AWMNKW/249 SILVER/METAL

More

Checked: 24.09.2004

In use since: 17.10.2000

Owner Holder Technical

OK

What about the future ?

TETRA High Speed Data

• TETRA high speed data is part of TETRA 2 standardization • TETRA HSD will complement the current TETRA services with higher data speeds • User experience comparable to GPRS/EDGE • Very spectrum-efficient • Adapts its speed (modulation) when necessary

Development continues

TETRA High Speed Data

Evolution

Java Multi-slot packet data Integrated GPS Colours

Advanced location applications Image communication Time Next … Situation awareness

Summary

• TETRA provides a rich set of basic and advanced data services • Data applications complement TETRA voice services • IP over TETRA is a solid and robust platform for data applications • Accessing data from the field opens totally new opportunities for public safety and other user segments • Data speed in TETRA IP cover the majority of current needs