Overview of TETRA and its

Services & Facilities

Päivi Laakso

Nokia

17.06.2002

Agenda• TETRA and its objectives

• Standards, system architecture

• Interoperability

• TDMA technology

• Voice communication services

• Data communication services

• Security services

• Future

Objectives behind TETRA standard• Define a digital Professional Mobile

Radio (PMR) standard to satisfy the current and future needs of especially Public Safety and other PMR users across Europe

• Unite fragmented PMR markets into one common market - harmonized use of spectrum

• Fulfill European authority co-operation requirements (Schengen Treaty) to enable European Integration – cross-border operation using common frequency spectrum

Goals during TETRA standard creation

Users:• desired features• choice• competition

Radio regulators:• spectral

efficiency• harmonisationOperators:

• desired features• data services• competition• cost effectiveness

Manufacturers:• open market volumes• to ensure open standards, the ETSI

IPR policy stipulates patented solutions to be made available at fair and reasonable terms

TETRA market today • Number of TETRA contracts in July 2004

– 505 contracts (325 contracts by September 2003)• Europe 357• APAC 53• Africa 18• Latin America 24• Middle East 26

• Very positive user experiences from networks that are in operation – TETRA has improved the security and safety of field units – Shared multi-agency operations have been effective during incidents– Open standard has affected product pricing, resulting in very competitive prices compared

to single vendor solutions– Advanced wireless data applications have entered professionals’ daily work

TETRA System Building Blocks

PSTNPABXISDN

LANWAN

IntranetInternet

Connectivity products

TETRA base station

TETRA exchange

Network management

servicesplanning and deploying

TETRA terminals

Dispatching solution

Integrated command and control

TETRA applications

Examples of TETRA networks

• VIRVE, Country-wide public safety network in Finland – 15 switches, over 1200 base

stations– Users: police, fire, rescue,

customs, frontier guards, social and health services

• Aéroports de Paris – 1 switch, 15 base stations– Users: maintenance and

security personnel of airports

Core TETRA standards and standard interfaces

• Air Interface (AI)• Voice plus data (V+D)• Direct Mode Operation (DMO) • Conformance testing • TETRA Speech Codec DMO

• Inter-System Interface (ISI)• Peripheral Equipment Interface

(PEI)

AIISI

PEI

Network ANetwork B

TETRA service classification• TETRA is not only a radio access standard, it is also

a standard defining the services and functionality

Bearer services = data transport:

- packet, circuit, single/multi-slot

Bearer services = data transport:

- packet, circuit, single/multi-slot

Teleservices = voice calls:

- one-to-one, group, broadcast

Teleservices = voice calls:

- one-to-one, group, broadcast

Nearly 30 supplementary services:- priorities, late entry, DGNA, …- fleet services- telephony supplementary services

Nearly 30 supplementary services:- priorities, late entry, DGNA, …- fleet services- telephony supplementary services

Nature of TETRA standard

The TETRA standard by ETSI • Provides

–Rich variety of tools and mechanisms to meet user requirements–Multiple possibilities to implement end-user services

Need to agree a common implementation to achieve interoperability

• TETRA interoperability certification ensures open multivendor market.

MARKET

Technology developmentTechnology development

Interoper-abilitytests

Interoper-abilitytests

What does interoperability mean?• Radio terminals and network infrastructures from

different manufacturers work together

Use

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ETSI standardisation

process

ETSI standardisation

process

Use

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ents

Manu-fracturersImplemen-

tations

Manu-fracturersImplemen-

tations

Use

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Standard

Products and

features

Interoperabilityprofiles underTETRA MoU

Interoperabilityprofiles underTETRA MoU

Interoperability between products and features

Interoperability (IOP) - Advantages

For user• Manufacturer independent

supply and 2nd source guarantee

• Benefits of competition – Wider selection of products

(gateway, special terminals etc.)

– Lower prices

– Constant improvements

• Increased speed of innovation

For manufacturer• Larger (global) market

– Critical mass for special products

– Potential to focus to own strengths

– Increased investment opportunity

– Faster time to market• One common and

independent specification– No vendor bias

What makes TETRA unique

• Fast call set-up time • Excellent voice quality,

elimination background noise

• Direct Mode (DMO)• Queuing • Spectrum Efficiency via

TDMA (Time Division Multiple Access, 4 channels on 25 kHz)

• Pre-emptive priorities• Versatile dispatching and

fleet management possibilities

What makes TETRA Unique

• Uncompromising security– Preventing eavesdropping of

communication– authentication of radios (and

networks)– air interface encryption – end-to-end encryption support– disabling of stolen radios

• Access to data from the field with TETRA data services

• TETRA radio interface is designed and optimized for circuit voice and packet data

Voice communication services

• Excellent voice quality• Fast call set-up• Individual (one-to-one) calls• Express calls (push and talk)• Group communication

– group calls– scanning of groups– dynamic regrouping– group area– broadcast groups

• Emergency calls• Direct mode

Dispatcher functions

• Group monitoring & communication • Joining groups• Preemptive speech item• Group member list• Dynamic regrouping• Broadcast group

Data Communication Services

• Status service

- efficient, real time

• Short Data Service, SDS

- text messaging + applications

• IP packet data

- Internet/intranet access from the field

• Circuit mode data

Database

e-mail

End-to-end applications for end-user needs

Security Services

• Secured access to communication• Authentication• Air interface encryption• End-to-end encryption• Separated technical and

operational management

TETRA Network Development Trends

Shared Multi-Agency Network

Nation Wide Service

WAP Servicesopen possibilities fornew ways of working

Advanced Voice Services

No Network Boundaries

Advanced SecurityServices

Advanced DataServices

TETRA

Optimised Total Cost of Ownership

TETRA Terminal Development Trends

User interface must be intuitiveand easy to use

WAP servicesopen possibilities of entirely new ways of working

Colour displaycan convey more information and enables image transfer to terminals

Voice feedbackgiver users extra usability

Messaging and packet dataenhance group communication

Small and lightweight yet robust, and manageable even when wearing protective gloves

Support for location solutionslike integrated GPS

Benefits from mainstream improvements and new

functionalities, like battery lifetime, image communication

Future with TETRA • TETRA standard is being developed to support higher data

rates• TETRA Release 2 will support TEDS (TETRA Enhanced Data

Service) • User Requirements Specification for TEDS developed based on

query among ETSI members, main input from Public Safety Users

• Release 2/TEDS standard expected to be completed 2005 • User data rates up to 100 kbit/s – databases, graphics,

images, ... • Radio channels 25, 50, 100 kHz, multi-carrier modulation• Backward compatibility with TETRA Release 1 control channel

for easier upgrades of networks

TETRA Release 2 will maintain the competitiveness of TETRA for the years to comeTETRA Release 2 will maintain the competitiveness of TETRA for the years to come

Conclusions• TETRA is the global open standard for

digital professional radio communications

– mission critical voice and group dispatch

– mobile telephony

– advanced data transfer and applications

• Real and open multi-vendor supply

• TETRA brings Internet/Intranet access to mobile workforce

• TETRA is secure

TETRA is ready, TETRA is future-proof, TETRA is globalTETRA is ready, TETRA is future-proof, TETRA is global