TETRA Data ServicesIncluding (Internet) IP Packet

Data AccessOle Arrhenius

Nokia

Agenda

• Wireless data in TETRA

• Applications using different TETRA data services

• WAP

TETRA data standards

Bearer services = data transport:

- packet, circuit, single/multislot

Peripheral Equipment Interface (PEI)

TETRA voice + data

TETRA Packet Data Optimised (PDO)

TETRA data services

Status

SDS 1, 2, 3, TL

TETRA-IP

• 16 bits of information

• Individual and group addressing

• Standardized values and free values for applications

• Individual and group addressing

• Application use and text messaging

• 1=16, 2=32, 3=64, TL=1017 and 2048 bits

• Internet Protocol

• Standard TCP/IP (UDP) protocol layer for applications

Data services for different needs

SDS 1 and StatusSDS 1 and Status

SDS-TLSDS-TL

TETRA IPTETRA IP

Small amount of data

Great amount of data

Rarely

Often

SDS 2,3SDS 2,3

Wireless data applicationsWorkforce managementUnit status, AVL

Instructions

Information retrieval, inquiriesTask related information

IdentityVehicles, weapons,

fingerprintsMaps

ReportingTask course and operations

Control and monitoring

Alarm devicesEnvironmental measurements

Field equipment telemetry

Surveillance videoStill/video image

Portable usersVehicle users

Fixed equipment

Control roomsIT systemsDatabases

Data networksInstrumentatio

n

Crew 1: "At substation 12"Crew 2: "Free"Crew 3: "Lunch"

TETRA network

Status messaging

• Remarkable savings in routine voice communication

• Improved workforce managementStatus

message

SDS

C&CR Application

C&CR Application

ApplicationApplication

Short Data Service (SDS) work orders and reporting

• Convenient, accurate and efficient communication

• Suitable for Short Data (SDS) messaging.

PEI

SDS

SDS

SDS

ApplicationApplicationSDS

DispatcherApplicationDispatcherApplication

TETRA network

Short Data Service (SDS)Automatic Vehicle Location (AVL)

• AVL information is transferred with SDS messages

Packet data gives benefits of Internet Protocol and TCP/IP

• Shared use of the radio transmission path

• Suitable for bursty traffic• Connectivity to the surrounding IT

environment - the entire www technology

• Support for standard products and applications

WWW

Database

e-mail

WAP

FTP

Tetra network

Backbone/transmissionInternet

Control RoomIntranet

Company Intranet

EnterpriseIntranet

Application

ApplicationApplicationTETRA IP packet data

IPDistribution

Core

Data access with TETRA IP

database interrogation

Intranet

Intranet

Intranet

DatabaseEnquiry

Info

Full A4 page report1700 characters = 6.8 s

Detailed text report700 characters = 2.8 s

Text report + passport photo= 2.8 s + 4 s = 6.8 s

TETRA IP transmission speed• Data amounts in

professional work are quite small

• In real life, the transmission speed is faster than a human can read or write

• Remember, fast start-up time

Image transmission• Still images or short video clips• Compression methods are effective:

JPEG, JPEG2000, MPEG4, MVQ• site of an accident, common view• vehicle damages• control of driving style, incorrect

overtaking• incorrect loading• place of crime, common view

Image

Original

Compressed15 seconds

Patient monitoring unit for use in emergency care in mobile

environment• Transferring patient related

data to the hospital from mobile unit

• Measurement of vital signs of the human body

• Nursing history by mobility

• 12 channel ECG monitored data

• Oxygen saturation

• Blood pressure

• Pulse

Dangerous goods

• All dangerous goods have their own unique number based on UN numbering system that is used worldwide

• All information in standard format • trade name• prohibited area• potent of goods

TETRA in WAP Forum• WAP adaptation initiative to TETRA April 1999 • TETRA was included in WAP v1.2 Dec 1999• WAP is adapted to TETRA IP and SDS bearers

SDS Gateway

WAP Server

SDS

IP

WAP=Wireless Application Protocol

ApplicationWAP Server

Professional TETRA WAP applications

• WAP traffic data transaction amounts are quite small (200-500 Bytes), high air interface capacity not needed

• WAP needs rapid data service

• WAP also provides security layer

TerminalsTerminals

WAP optimizes air interface

TETRA SDS and IP

Operator/Service/Content providers

API products and WAP Server

NetworkAPI

ConnectivityApplications Content

TETRA !

Optimisation with WAP

Select Exit

Services

Select

Exit

BookmarksHomeHelpSettings

Select

Exit

PersonsStreetsVehiclesChemicals

Select

Exit

StreetsVehiclesChemicals

Persons

Select

Exit

VehiclesChemicals

PersonsStreets

Retrieving Cancel

Connecting to

Select Services

Enter Register numberSelect Query

Response appears

Select Bookmarks

Select Vehicles

AuthenticationLogin

Password:

Enter user id andpasswordUser id: jsmith

Login

Password:

Enter user id andpasswordUser id: jsmith

******

Retrieving Cancel

Connecting to

Query Back

Regist. #

- - - Vehicles - - -

MGI112

Retrieving Cancel

Connecting to

Select Exit

Type: Escort 1998 Red sedanStatus: Stolen

Owner: Jack Swift- - - Vehicle MGI-112 - - -

Address: Stone Road 35 04620 Oblow

• Optimises user interface for mobile display/keyboard • Optimises radio path usage• Provides standard Wireless Markup Language

Voice mail and unified messaging solution• Unified messaging: voice mail, fax and email

all in one solution

• Similar voice mail solution as in cellular networks

• Mailbox access via WAP and internet

Unified Messaging Center

WAP

emailvoicemail

fax

Intranet

Internet

PABX

PSTN

WAP interoperability is assured

• Interoperability is about:• clear specifications• developer guidance and education• a reference pool of products• covers all components

• Certification process already in place (March 2000)

WAP summary• WAP is a tool to access information• PSS and professional organizations already

have database content• TETRA IP and SDS are optimal bearers for WAP• No need for any upgrading in WAP terminals

when new applications are taken in to use• WAP includes security layer

TETRA data makes it easy for the application industry

• Commonly used network interfaces like IP

• MS Windows application Programming Interfaces (API)

• Different gateways bring the existing applications visible over TETRA

Conclusions for TETRA data

• Data is there for the professional radio users

• Data is fast because of rapid call setup times

• Brings Internet/Intranet and WAP access to mobile workforce