GLOBAL ink VHF Digital Link Mode 2 Deployment

GLOBAL ink VHF Digital Link Mode 2 Deployment Strategy Vic Nagowski vjn@arinc. com ATN 99 September 23, 1999 A

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

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

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

GLOBALink VHF 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

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

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

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

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 A

VDL Mode 2 Architecture V D L M od e 2 New Bit Oriented End Systems Host AC AR S ARINC Network Host Existing ACARS End Systems 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 A

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 A

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 A

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 A

VDL Mode 2 AOA • If a transition step is required, ACARS over AVLC (AOA) would be implemented – AOA uses the same physical layer (D 8 PSK) 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 CY 2000 operational need A

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 A

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 -300 ER aircraft – ARINC working with American Airlines , Rockwell Collins & Eurocontrol to develop interoperability test strategy – Demonstration: May 2001 - September 2001 A

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

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 1 A messages are subset of PETAL II Trials – FAA has announced use of VDL Mode 2 in support of CPDLC Builds 1 and 1 A • ARINC under contract to FAA for CPDLC Build 1 – ARINC working with the FAA and American Airlines to address human factors & interoperability test strategy A

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 A

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 A

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 k. Hz) • VDL interference to ACARS data communications • VDL interference to other VDL transmissions A

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 A

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 A