Transcript TETRA Template
TETRA Release 2 Overview
Mark Edwards Principal Staff Engineer Motorola European System Design Centre
November 2002 1
TWC2005 – November 2005
Does TETRA1 handle data?
• Database look up • AVL • Email • File transfer • Limited slow scan video • But some multimedia applications could ask for more….
TWC2005 – November 2005
Mission Critical Data Applications on TETRA
• Today’s applications need data capacity
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Frequent messages, small payload:
• AVLS from portables and vehicles • Database access • Status messaging
TETRA Single Slot Packet Data • But some applications starting to need more data throughput
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Less frequent messages, much bigger payloads
• Mug shots • File transfer • Slow scan video
TETRA Multi Slot Packet Data
TWC2005 – November 2005
TETRA2 brings new capabilities … to Fire
Check floor plans of burning building TETRA 1 Database of plans held on local CD in cab TETRA 2 Updated plans can be downloaded as appliance is en route Fire fighters get latest information Check database of hazardous chemicals TETRA 1 Text based results from database search TETRA 2 Text and image results from database search Fire fighters get clearer information
TWC2005 – November 2005
TETRA2 brings new c apabilities … to Ambulance
Transmit an ECG trace from ambulance to doctor in hospital TETRA 1 Transmit compressed ECG TETRA 2 Less compression used means more details on ECG More accurate diagnostic for heart conditions Transmit pictures from scene so doctors can predict injury TETRA 1 still images or slow scan video TETRA 2 More detailed video image Doctors can make more accurate predictions
TWC2005 – November 2005
Other Additional Applications of TETRA 2
TETRA 2 Data Application User Benefits Police Transport Full mobile dispatch, extending complete control room environment to the field Live updates of arrival/departures boards at bus stops Check image database to see manifests, passenger lists etc Greater local control at a major incident site More relevant and accurate information to passengers Helps reduce smuggling of goods and people Oil, Gas & Utilities Camera monitoring at very remote locations to check on lone workers Camera monitoring of areas at risk - used to supplement telemetry data Increased safety for remote workers Faster and more accurate understanding of events
TETRA2
TEDS (TETRA Enhanced Data Services) – High Speed Packet Data for TETRA
TWC2005 – November 2005
TETRA Enhanced Data Service TEDS
High speed packet data service for TETRA enabling faster data rate and higher data capacity
• Backward compatible with TETRA Release 1
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Network integration capability • Flexible data rates and spectrum use
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25, 50, 100 and 150 kHz channels bandwidths
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Can trade off data rate, spectrum and range • Integrated TETRA 1 and TEDS system
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i.e. can receive TETRA 1 calls on TEDS channels • Technology selected for TEDS use
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Multi-carrier QAM (Quadrature Amplitude Modulation) in all bands D8PSK in 25 kHz
High Speed Packet Data Deployment
TWC2005 – November 2005
• TEDS will be the solution for mission critical • A range of channel bandwidths available in the standard
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Offer a single TEDS channel at each site, in addition to TETRA 1 voice channels
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Provision channel bandwidth based on number of users and their data application requirements • The modulation scheme can adapt to radio transmission conditions
TWC2005 – November 2005
GPRS versus TETRA - Availability
GPRS constraints TETRA 2 benefits Availability At times of high voice load there is little or no GPRS service available
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Revenue streams and profit targets dictate data coverage and capacity
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GSM cells often provisioned with dynamic GPRS channels to give priority to lucrative voice services Users get the level of data service they need
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End user requirements dictate the coverage and capacity in their own private network
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TETRA cells are provisioned with the data capacity to meet end user’s operational needs
GPRS versus TETRA - Predictability
TWC2005 – November 2005
GPRS constraints TETRA 2 benefits Predictability GPRS users often see lower throughputs than today’s TETRA packet data users TETRA users get access to the high bandwidths offered by the standard
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GPRS Data bandwidth is shared between many public users
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TETRA data bandwidth is shared only with users on a private network
TWC2005 – November 2005
GPRS versus TETRA - Security
GPRS constraints TETRA 2 benefits Security Meets commercial security requirements Meets Government security requirements, e.g.
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Mutual authentication
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Longer keylengths means much harder to decrypt TETRA: Availability – Predictability - Security
TWC2005 – November 2005
Typical upgrade to TETRA2 Requirements from all users….
• Maintain GoS (Grade of Service) for voice and any legacy data services • Increase capacity for new data services • Easy upgrade
Your expectations for TETRA2
TWC2005 – November 2005
Things to Remember • New Spectrum
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Maintain present spectrum to keep GoS for existing voice & data services
• New Terminals for TEDS services
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Retain present terminals for existing voice & data services
In partnership for TETRA2
TWC2005 – November 2005
Spectrum:
Progress has been made…..
• ECC (Electronic Communications Committee) has just approved a Work Item to add support for Wideband technologies in 385MHz – 470 MHz
– 385 MHz – 390 MHz
would be the ideal choice for TETRA 2
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reserved for Nato Sporadically used at present
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users need to be very influential • National regulators are responsible for allocating spectrum
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Will Consider the local operating environment Will Balance requirements from public safety, transportation, etc.
Users need to exert their influence through the MOU and directly to their National regulators
TWC2005 – November 2005
The facts of life:
• If you already have TETRA you will still be able to use existing:
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Terminals
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Application
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• When you get TETRA 2 you gain:
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Services Data speed & capacity
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New multi media applications Increased operational efficiency New possibility to innovate
TETRA 2 takes the lead
TWC2005 – November 2005
High Speed Data You can rely on
Alway s Fast Alway s Safe Alway s there Predictable Secure Alway s on Available Accessible
Added by TETRA and TEDS