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What is the Space of PMR/PMAR in the era of NGN?. ICT Workshop Brasília Nov.10, 2006. NGN, FMC, IMS, 3G …. Assume all are implemented Is there room for another kind of network? What customer need could drive it?. More and more Critical Incidents. Critical incidents impact everyone - PowerPoint PPT Presentation
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What is the Space of PMR/PMAR in the era of NGN?
ICT Workshop Brasília Nov.10, 2006
ICT Workshop 2006 11
NGN, FMC, IMS, 3G …
Assume all are implemented Is there room for another kind of network? What customer need could drive it?
ICT Workshop 2006 11
More and more Critical Incidents
Critical incidents impact everyone Public pressure necessitates a move from
independent operations of respondents to interdependent collaboration
“No man, woman or child should lose his or her life because public safety officials cannot talk to one another.”
The Public Safety Wireless Network
ICT Workshop 2006 11
Who are the Public Safety Responders
Police Fire Emergency Medical Services Rescue Civil Defense Public Utilities – Electricity, Gas, Water Essential Transport
ICT Workshop 2006 11
Communication Requirements of Emergency Responders Group Calls Operations / Dispatch Centers “instantaneous connection”`< 0,5 s Pre-Emptive (Emergency ) Call Priority Levels Encryption Interoperability wiht Autonomy Multiple Resilience Levels
– Redundancy– Site Operation– Direct Mode
ICT Workshop 2006 11
Commercial Network Suitability
National Task Force on Interoperability says..National Task Force on Interoperability says..
““Public safety officials cannot depend Public safety officials cannot depend on commercial systems that can be on commercial systems that can be
overloaded and unavailable”overloaded and unavailable”
ICT Workshop 2006 11
True Interoperability
Enables instant communications among multiple responders and different agencies
ICT Workshop 2006 11
True Interoperability
Consequences More coordination regardless of network type
or agency affiliation Seamless access to voice and data intelligence Coordinated response can happen in seconds,
not hours or minutes
“True Interoperability allows public safety personnel in different agencies to communicate with each other on demand in real time” --Public Safety Wireless Network
ICT Workshop 2006 11
Coverage
Designed to user needs; not profit based Extensive planning Additional capability beyond
traditional network coverage
“…I think the most salient point [of having your own system] is the ability to maintain a service level without a profit motive”
Steve Jennings, CIO Harris County, TX
ICT Workshop 2006 11
A Critical Network
Provides the availability, information security and reliability that responders require
ICT Workshop 2006 11
Critical Networks
Reliable Always available Redundant Priority access at all times
Critical Networks are the Lifeline whenever lives or outcomes depend on communications
ICT Workshop 2006 11
The TETRA Standard
– ETSI developed standard– Digital benchmark for
wireless communication networks
– Currently operating in 77 countries
– Supported by Schengen Group of Public Safety
– Supplied by many providers (multiple subscriber and infrastructure vendors)
ICT Workshop 2006 11
The TETRA Standard Strong multi vendor support High capacity - ideal for
shared networks Efficient use of spectrum Longevity of investment
– 20 years +– Ongoing
enhancements– New applications on
installed infrastructure Data Applications Multiple & High Levels of
Security Multiple levels of Resilience
TELEPHONY Full Duplex
Packet DataData Transmission
fast and reliable
TWO-WAY RADIOGroup and Individual
Calls, emergency calls, priority levels,
DMO
ENCRYPTION
ICT Workshop 2006 11
TETRA TDMA principle TDMA (Time Division Multiple Access) 4 channels per 25 kHz carrier 4 calls per 25 kHz carrier (data or voice) Voice and Data can be transmitted
simultaneously
Four user channels multiplexedinto one 25 kHz carrier
SPECTRUMEFFICIENCYSPECTRUMEFFICIENCY
4 channels12
34
36 kbits/sgross bit
rate
Carrier
ICT Workshop 2006 11
TETRAInfrastructure
.
Line Station (Despatcher)
BSBS BSBS
BSBS BSBS BSBSBSBSAnother TETRA
Network
NMS
1a
1b3
6
5
4
2
ExternalNetworkManagement
PSTN, ISDN PDN
Control Room
Typical TETRA Network
Interfaces
ICT Workshop 2006 11
Services
Voice ServicesFast call set-upIndividual (one-to-one) callsExpress calls (push and talk)Group communication
– group calls– scanning of groups– dynamic regrouping– group area– broadcast groups
Emergency callsDirect mode
Voice Dispatch ServicesGroup monitoring & communication Joining groupsPreemptive speech itemGroup member listDynamic regroupingBroadcast group.
Data ServicesStatus serviceShort Data Service, SDSIP packet dataCircuit mode data
ICT Workshop 2006 11
The TETRA Association
Formed in 1994Promote the ETSI TETRA
standard world-wideAchieve Harmonised
Spectrum in Europe– 380-400MHz– 410-430MHz– 870-920MHz
Encourage an open and competitive market
ICT Workshop 2006 11
TETRA Association – Some Members
ICT Workshop 2006 11
Open and competitive markets
Fully compatible equipment
Interoperability process created
Independent test house
Certification process
Fully supported by industry
ICT Workshop 2006 11
The future of TETRA
Special Working Group formed– To consider future user needs– To ensure TETRA remains relevant in the coming
decade New Codecs Air Interface enhancements Range extension High speed data
ICT Workshop 2006 11
Q&A
