Transcript Overview of TETRA Services and Facilities

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 – crossborder operation using common
frequency spectrum
Users:
• desired
features
• choice
• competition
Operators:
• desired features
• data services
• competition
• cost effectiveness
Radio regulators:
• spectral
efficiency
• harmonisation
Manufacturers:
• open market volumes
• to ensure open standards, the ETSI
IPR policy stipulates patented
solutions to be made available at
fair and reasonable terms
Goals during TETRA standard creation
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
TETRA
exchange
TETRA
base
station
Network
management
Dispatching
solution
Integrated
command and
control
services
planning and
deploying
Intranet
Internet
TETRA applications
LAN
WAN
PSTN
PABX
ISDN
Connectivity products
TETRA terminals
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
Network A
• Inter-System Interface (ISI)
• Peripheral Equipment Interface (PEI)
DMO
Network B
ISI
AI
PEI
TETRA service classification
• TETRA is not only a radio access standard, it is also
a standard defining the services and functionality
Nearly 30 supplementary services:
- priorities, late entry, DGNA, …
- fleet services
- telephony supplementary services
Bearer services
= data transport:
- packet, circuit, single/multi-slot
Teleservices
= voice calls:
- one-to-one, group, broadcast
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.
What does interoperability mean?
• Radio terminals and network infrastructures
from different manufacturers work together
MARKET
Standard
ETSI
standardisation
process
Interoperability
profiles under
TETRA MoU
Products
and
features
Manufracturers
Implementations
Technology development
Interoperability
between
products and
features
Interoperability
tests
Interoperability (IOP) - Advantages
For user
• Manufacturer independent
supply and 2nd source
guarantee
• Benefits of competition
For manufacturer
• Larger (global) market
– Critical mass for special
products
– Potential to focus to own
– Wider selection of products
strengths
(gateway, special terminals etc.)
– Increased investment
– Lower prices
opportunity
– Constant improvements
– Faster time to market
• Increased speed of
• One common and
innovation
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
Database
e-mail
• Status service
- efficient, real time
• Short Data Service, SDS
- text messaging + applications
• IP packet data
- Internet/intranet access from the field
• Circuit mode data
End-to-end applications for enduser 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 MultiAgency Network
Nation Wide
Service
Advanced
Security
Services
No Network
Boundaries
Advanced
Data
Services
Advanced
Voice
Services
Optimised Total
Cost of Ownership
TETRA
WAP Services
open
possibilities for
new ways of
working
TETRA Terminal Development
Voice feedback
Trends
giver users extra usability
Support for location
solutions
like integrated GPS
User interface
must be intuitive
and easy to use
Colour display
can convey more
information and
enables image
transfer to terminals
Messaging and packet data
enhance group communication
Small and lightweight
yet robust, and
manageable even when
wearing protective
gloves
WAP services
open possibilities of
entirely new ways of working
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 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 global