TETRA ASSOCIATION Phil Godfrey Chairman
TETRA History
• Early 1990s – Proposal to ETSI– Initially for shared commercial
– Later to include Public Safety user needs
• Mobile Digital Trunked Radio System (MDTRS)
• TErrestrial Trunked RAdio (TETRA)
TETRA
• 4 slots in 25kHz = 6.25kHz efficiency4 times more efficient than GSM!
• Designed for those who work, and need to communicate, in Groups.
Core Technology
• 4 slot TDMA in 25kHz channels(6.25 equivalent)
• /4 DQPSK Modulation
• Gross data rate 36kbit/s, Net 28kbit/s
• Circuit and packet mode data
• Low bit rate ACELP codec (4.6kbit/s)
• Fast call setup <300ms typical
• Air Interface and End to End Encryption
Contracts by Region
Western Europe40%
Eastern Europe15%
Scandinavia4%
Middle East5%
Africa5%
Asia Pacific25%
Latin America6%
Installed Systemsby region
Contracts by Sector
Public Safety32%
Transport33%
Utilities10%
Business and Industry5%
Confidential 1%
Government10%
Military2%
Extraction5%
PAMR3%
Installed SystemsInstalled Systemsby sector
dPMR
• Replacement for PMR 446
• Unlicensed bands
• Low Power (500mW)
• 6.25kHz channel spacing
• Set to Set only
• Suitable for on‐site, low functionality systems
DMR
• Tier 1– Un‐licensed, low power, set to set
• Tier 2– Licensed set to set and set to base station
• Tier 3– Licensed
– Simple trunked systems
DMR
• All tiers are 12.5kHz 2‐slot TDMA
• Basic functionality– Individual Call (point to point)
– Group Call (point to multipoint)
– All Call (one‐way voice call to all users)
– Broadcast (one‐way group call).
• Limited standardisation
• Data typically 1.8kbit/s per slot*
* Source – Analysis Mason
Spectrum
• Spectrum Working Group
• Lobbying– Governments
– Regulators
– European Commission
• Westminster e‐Forum
ETSI Broadband Initiative
• EstablishingUser Requirements
• Evaluating Technologies
• Joint Workshop with TETRA Association
Market Reach
• Currently not accessible
• Presence at IWCE
• Meetings with
– APCO
– NPSTC
• Pilot Systems are underway
• Utilities Telecom Council (UTC)
TETRA now present in more than 100 countries
TEDS Contracts
• Nodnett Norway Siemens/Motorola
• South African Police Service (Eastern Cape) Integcomm/EADS
• Virve FinlandEADS
Contracts by Sector
Public Safety32%
Transport33%
Utilities10%
Business and Industry5%
Confidential 1%
Government10%
Military2%
Extraction5%
PAMR3%
Installed SystemsInstalled Systemsby sector
Expo Zaragoza
Host of the International Exposition 2008
Designed for Sustainability
Courtesy of Teltronic
Airports
Amsterdam Heathrow
Paris
Cologne
Brussels
Copenhagen
Doha
Barcelona
Zaragoza
BangaloreCape Town
Oslo
Delhi
Hyderabad Beijing
Shanghai
Hong Kong
Suvarnabhumi
Birmingham
Madrid
Hanover
Granada
SevilleSaltzburg
MalagaJersey.
Leipzig.Stuttgart
AthensMunich
Bangkok
Munich
BDBOS
• Destined to become the largest TETRA network in the world– BDBOS commencedApril 2007
– Circa 500,000 users