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ATN 99 September 23, 1999

GLOBAL. ink. VHF Digital Link Mode 2 Deployment Strategy Vic Nagowski vjn@arinc.com. ATN 99 September 23, 1999. Agenda. Existing Air/Ground Services Customer Requirements VDL Mode 2 Deployment Strategy Frequency Management Issues Summary. HF and VHF Voice Communications.

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ATN 99 September 23, 1999

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  1. GLOBAL ink VHF Digital Link Mode 2 Deployment StrategyVic Nagowskivjn@arinc.com ATN 99 September 23, 1999

  2. Agenda • Existing Air/Ground Services • Customer Requirements • VDL Mode 2 Deployment Strategy • Frequency Management Issues • Summary

  3. HF and VHF Voice Communications • Operate Communications Centers in New York and San Francisco Providing ATS and AOC Communications • Handle All ATS Communications in U.S. FIRs for FAA A

  4. GLOBALinkVHF in North America • Operational Since 1978; Over 400 Ground Stations • Used by Over 5,800 Aircraft to Communicate 15 Million Messages per Month A

  5. GLOBALinkVHF in North America Plus SATCOM • SATCOM Operational Since 1991 • Used by Over 700 Aircraft; 1 Million Kilobits per Month Including ATS Messages in Pacific A

  6. GLOBALinkAdded VHF in Europe in 1998 • 60 Stations Currently Operational, 1 New Station Every 9 Days Since Deployment Began • Serving Over 600 Aircraft A

  7. GLOBALinkAdded VHF in Asia in 1998 • In Partnership With AEROTHAI and ADCC, China • 36 Ground Stations Used by Nearly 600 Aircraft A

  8. GLOBALinkAdded HFDL in ‘98; South America in ‘99 • 10 HFDL Stations Operational Today; Coverage Across North Pole • South American Implementation Underway A

  9. Customer Requirements • Shared network for AOC and ATC use • Designed to meet ATC requirements • Availability at IOC will be 0.9999 • Message latency 3.5 sec, 95% • No single point of failure • Network components have primary/secondary connections • Flexible and expandable architecture • Enables message priorities

  10. New Bit Oriented End Systems VDL Mode 2 Host ARINC Network ACARS Host Existing ACARS End Systems VDL Mode 2 Architecture VDL Mode 2 Program • Bit-oriented VHF data link • Development based on ICAO standards • Supports user-transparent data transfer • OSI compliant • ATN compliant • Meets AOC and ATS requirements • Provision to support broadcast applications in the future • Evolutionary approach… smooth migration from ACARS

  11. VDL Modes 3 & 4 Support • ARINC VDL Mode 2 development effort will not prohibit migration to VDL Modes 3 & 4 • ARINC digital ground radios support current VDL Mode 3 performance requirements • ARINC will support FAA and industry VDL Mode 3 & 4 requirements as they evolve and airline requirements are demonstrated

  12. Ground Station Deployment Strategy • Phase 1 • All critical airports plus en-route coverage in domestic U.S. by year end 2000 • Phase 2 • All North American U.S. IAGS VDL capable, 2003 • Phase 3 • Redundant coverage planned for class A and B airspace, 2002-2005 • Phase 4 • VDL Europe, scheduled for 2002-2004

  13. ARINC VDL Mode 2 & ATN Development • ARINC is developing ATN compliant VDL Mode 2 subnetwork and ground infrastructure • Support FAA and CAAs interoperability testing • Maximize use of COTS software • Acquire ATN compliant network software • Develop interoperability test strategy to insure compatibility with ATNSI RRI

  14. VDL Mode 2 AOA • If a transition step is required, ACARS over AVLC (AOA) would be implemented • AOA uses the same physical layer (D8PSK) and data link layer (Aviation VHF Link Control) as specified in the VDL SARPs • AOA is on the path to full ATN with minimal throw-away software • AOA will support CY2000 operational need

  15. VDL Mode 2 AOA • Reduce technical risk on a one-step ATN implementation • Mitigate schedule risk to AOC applications • No host modifications required • AOA is a transition step approved by the AEEC Data Link Users Forum

  16. EUROCONTROL Activities • PETAL II Trials • Demonstration of the operational use of ATC message sets over data link • ARINC to provide VDL Mode 2 coverage in the Maastricht UAC Center Airspace • American Airlines supporting trials with 4 767-300ER aircraft • ARINC working with American Airlines , Rockwell Collins & Eurocontrol to develop interoperability test strategy • Demonstration: May 2001 - September 2001

  17. Frankfurt Germany Hamburg Germany GS GS Copenhagen Denmark GS Paris France EUROCONTROL Grd/Grd Boundary Router ARINC Regional ATN ARINC Grd/Grd Boundary Router GS European ATN ARINC AGR ES Maastricht UAC GS London Gatwick Berlin Germany Amsterdam The Netherlands GS GS Rev.2, 8 April 99 Proposed ARINC Petal II VDL Mode 2 Architecture

  18. FAA Activities • FAA Data Link Program • CPDLC Build 1 is a single-site deployment at the Miami Air Route Traffic Control Center • Initial Operational Capability June 2002 • CPDLC Builds 1 and 1A messages are subset of PETAL II Trials • FAA has announced use of VDL Mode 2 in support of CPDLC Builds 1 and 1A • ARINC under contract to FAA for CPDLC Build 1 • ARINC working with the FAA and American Airlines to address human factors & interoperability test strategy

  19. VDL Mode 2 Transition Planning • The successful migration to VDL Mode 2 requires closely coordinated industry transition planning • ARINC’s data link customers commit to VDL Mode 2 service • ARINC deploys the ground infrastructure • Airlines develop migration plan for airborne equipment and host application software

  20. VDL Mode 2 Transition Planning (Con’t) • Airframe manufacturers provision aircraft during production • Avionics manufacturers develop the digital interface and necessary software for the ATSU, AIMS, CMU and VDR

  21. Frequency Management Issues • Aircraft Interference issues: • VDL interference to VHF voice communications conducted on radios co-located on the same aircraft • VDL interference to GNSS and SATCOM on radios co-located on the same aircraft • Ground Interference Issues: • VDL interference to existing VHF voice communications (8.33/25 kHz) • VDL interference to ACARS data communications • VDL interference to other VDL transmissions

  22. Frequency Management Issues • Frequency management issues are being addressed by: • ICAO Aeronautical Mobile Communications Panel working groups B and D are working the issues • Improvement in the spectrum mask for VDL radios is expected to help reduce co-site interference without eliminating it • Frequency management techniques • RTCA and EUROCAE are involved in developing the necessary additional integration standards and requirements • AEEC is involved with developing aircraft integration standards to reduce RF interference • ARINC is investigating the ground interference issues associated with deploying the VDL Mode 2 ground system

  23. VDL Mode 2 Summary • ARINC’s VDL Mode 2 program continues to meet schedule milestones • Ground stations are being deployed • AOA will be available to support AOC data link when needed by ARINC customers • ARINC is actively supporting a transition planning program that will ensure successful implementation • PETAL II and CPDLC will provide an early assessment of the ATS benefits using data link • Frequency management issues are being addressed by the various industry committees

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