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ATN2002 IEE, London

ATN2002 IEE, London. Providing Communications Services to Support ATC Applications Akhil Sharma Senior Manager AIRCOM Service Development. Outline. Overview of VHF and Satellite AIRCOM Current ATS Data link Communications Services SITA ATS Application Systems VDL Mode 2

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ATN2002 IEE, London

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  1. ATN2002IEE, London Providing Communications Services to Support ATC Applications Akhil Sharma Senior Manager AIRCOM Service Development

  2. Outline • Overview of VHF and Satellite AIRCOM • Current ATS Data link Communications Services • SITA ATS Application Systems • VDL Mode 2 • Transition to ATN • ATN Service

  3. SITA X.25 MTN SITAMET ADLT (Singapore) MSS GES Primary MSW DHP Backup Airlines and CAA Customers AIRCOM Internetworking and FANS Partners RGS ADLT (Montréal) AIRCOM Service

  4. VHF AIRCOM Coverage

  5. Satellite AIRCOM Coverage

  6. AOC Use of ACARS • SITA introduced the VHF ACARS services (VHF AIRCOM) in the early 1980’s to support movement messages • Today, over 100 or the world’s airlines are VHF AIRCOM customers with 4,000 aircraft and and additional 1,000 BizJets • The 5000+ aircraft which use the service collectively generate 400,000+ messages per day • In addition to basic movement information, AOC applications have evolved to include: • engine monitoring • flight planning • Weight & Balance, Takeoff Data Calculation • Weather Information • Fuel information • Gate information • ACARS is considered to be a mission critical service

  7. ATS Use of ACARS – Pre FANS • A number of ATS providers around the world have/are planning initial ATS data link services: • Departure Clearance (DCL)/Pre-Departure Clearance Services (PDC) • Oceanic Clearance Services (OCM) • Digital-ATIS (D-ATIS) Services • In order to promote global interoperability, the AEEC and Eurocae have developed standards for these services • AEEC 623 (Message formats) • Eurocae ED 85, ED 89 and ED 106 (Performance Requirements) • SITA provides a D-ATIS Gateway service in order to allow non 623 compliant aircraft access to 623 compliant ground systems and vice versa

  8. ATS Use of ACARS – Pre FANS • SITA provides DCL, OCM, D-ATIS communications services (ATS AIRCOM) to an increasing number of ATS providers • D-ATIS direct connections to: • Australia, Austria, Bahrain, Denmark, France, Germany, Ivory Coast, Korea, Singapore, Spain, Switzerland, United Kingdom • DCL/PDC direct connections to: • Australia, Belgium, Denmark, France, Ivory Coast, Korea, Spain • SITA supports pre-FANS internetworking with other DSPs to ensure maximum access to ATS applications by aircraft operators • ATS AIRCOM provides customers with comprehensive support including help-desk and monthly performance data that reports against key indicators, e.g. • Service availability • Uplink success rate • Uplink transit delay

  9. Uplink Success Rate 96.56% 97.10% 9.54% Within 60 seconds 93.85% 94.67% Within 120 seconds 99.21% 99.40% Message Uplink Delivery Time (based on MAS msgs) Pre-FANS ATS Performance 2001 Average YTD 2002 Average

  10. ATS Use of ACARS - FANS • According to industry estimates, there are approx. 1,200 FANS 1/A equipped aircraft today……...and the number is growing ! • To date, FANS 1/A services have been introduced in remote and oceanic airspace • An Industry group, under the Link2000+ programme, studied FANS accommodation in an ATN environment • SITA currently provides direct FANS 1/A communications services to 20 ATS providers including the FAA, Eurocontrol, France, Spain, South Africa, Singapore, Australia and India • SITA works with ATS providers directly and through ICAO Regional Planning Groups and FANS Interoperability Teams to ensure the datalink service continues to meet their requirements • SITA supports FANS internetworking with other DSPs to ensure maximum availability of services to aircraft operators

  11. SITA FANS customers  Boeing Test  Eurocontrol Maastricht  Korea Airports System (Seattle)  Aerospatiale Toulouse Authority (Gimpo)    US FAA  CAA Uzbekistan (Oakland,  CAO Iran (Tehran) (Tashkent)  Taiwan CAA Anchorage,  Egypt CAA (Cairo)  AAI India  CAD Hong Kong New York) (Calcutta, Madras)  AASL Sri Lanka  DCA Myanmar (Columbo) (Yangon)  CAA Singapore  DCA Mauritius  Airports Fiji  DGAC French  ASECNA Madagscar (Antananarivo) Polynesia (Papeete)  Airservices Australia  ATNS South Africa (Brisbane, Melbourne) (Johannesburg)

  12. AIRCOM use for FANS-1/A FANS-1/A ADS/CPDLC ACARS Convergence Function Satellite Data Unit ACARS Management Unit Co-DSP VHF Transceiver VHF AIRCOM Ground Station Satellite AIRCOM SITA Network SITA ACARS Processor uses the address entered by the airborne system to route messages to the destination FANS-1/A ground system. FANS-1/A Ground System ADS/CPDLC ACARS Convergence Function

  13. Uplink Success Rate 99.22% 99.54% Within 60 seconds 96.24% 96.17% Within 120 seconds 99.03% 98.90% Message Uplink Delivery Time (based on MAS msgs) FANS ATS Performance 2001 Average YTD 2002 Average

  14. ATS AIRCOM Solutions • SITA has recently launched a new series of ATS systems to accelerate ATS data link implementation: • Airport Tower Systems • Departure Clearance/Pre-Departure Clearance – “AIRCOMclever” • Digital-ATIS – “AIRCOMevatis” • Including hosted services • ADS-CPDLC Gateway • ACARS Gateway

  15. AIRCOMevatis

  16. AIRCOMclever

  17. AIRCOMclever Controller HMI

  18. ATN Sub-Network ATN ES RGS ADS-CPDLC Gateway ATN aircraft SITA ATN router VGS ATS Operational System GES ADLT ADS-CPDLC Gateway FANS path FANS aircraft ATN path SITA Network Service

  19. VDL Mode 2 • One VDL channel provides at least 10 times more capacity increase over one ACARS channel • Way forward to address performance related issues in high density airspace approaching saturation

  20. VDL Mode 2 • SITA actively supported ICAO VDL Mode 2 standardisation/ validation and associated activities in AEEC, RTCA and Eurocae • Contracted Harris Corporation for the development of the “VGS” in 1999 • First VGS was delivered to SITA in December 2000 • VGS capable of supporting ACARS, AOA, ATN/VDL M2 and VDL Broadcast in parallel • VDL AIRCOM service was launched in July 2001 • 10 sites operational in Europe today • Another 5 sites deployed for avionics vendors

  21. VDL Mode 2/AOA • Industry has defined an interim step towards ATN referred to as “AOA”, “ACARS over AVLC” • AOA allows existing ACARS applications to benefit from the higher bandwidth offered by VDL M2 • Main benefit, in addition to capacity increase, is that no change required to the interface to customer ground systems • For aircraft, transition from AOA to ATN/VDL Mode 2 will require a software upgrade to the avionics • AIRBUS AOA flight tests completed in October 2001 • AOA Flight tests with KLM to start end September 2002 • An increasing number of airlines are planning to migrate to AOA for AOC purposes

  22. VDL/AOA/ATN

  23. SITA VGS Architecture Wide band Antenna interface (8) - X1 Antenna Relay switches Narrow band Antenna interface (8) - X2 VHF Data Radios: Each VDR can be programmed to handle VHF analog ACARS or VHF Digital Link Mode 2 interface (1) - X10 GPS source Uninterruptible Power Supply Power Supply Dual Power Supply VHF Ground Computer (VGC) Laptop computer for maintenance VDL Subnetwork Connections ATN Router SITA Ground Network ACARS and VDL AOA Traffic VGS Management Interface ACARS Processor VDL Management Entity Processor

  24. ATN Services • SITA actively contributed to ICAO ATN standardisation/ validation and development of RTCA, Eurocae, AEEC standards • Provision of ATN service over VDL Mode 2 and/or SATCOM requires deployment of ATN Router(s) • Numbers and locations of Routers will be determined by ATS provider requirements • SITA is currently in the process of evaluating ATN Router products • SITA is supporting CPDLC/ATN/VDL M2 flight trials with Eurocontrol • ATN Service will be launched to meet Eurocontrol Maastricht “Petal to Link2000+” project timescales • Currently working with the FAA to work out participation in the CPDLC Build Programme • SITA works with ATS Providers and Regional ICAO Groups to support ATN/VDL M2 trials • The Satellite AIRCOM service is compliant with the ATN and was demonstrated in the frame of the ADS Europe Programme

  25. Communications Flows ATN AOA ACARS VDL2 Link AVLC Link RGS VGS ATN User Traffic Data Communication Network ACARS User Traffic ATN Router Airline ACARS ACARS DSP ATN System Host

  26. Conclusions • The use of the current VHF and Satellite AIRCOM service to support ATS communications continues to increase – a true reflection of the benefits provided • SITA encourages and is willing to work with ATS providers to deploy PDC/D-ATIS systems to realise early benefits and gain experience • SITA’s global VHF network is in the process of being upgraded to provide VDL M2 Services • Major airlines are planning to upgrade to AOA to provide enhanced performance to their existing ACARS applications • SITA’s ATN Service will be shortly launched to meet ATS provider requirements • SITA encourages ATS providers planning on ATN implementation to address the accommodation of FANS 1/A aircraft • Finally, SITA is committed to enabling cost-effective improvements in global Air Traffic Management and continually works with ATS providers and the airline community to realise this goal

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