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Next Generation Air/Ground Communications (NEXCOM)

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Presentation on theme: "Next Generation Air/Ground Communications (NEXCOM)"— Presentation transcript:

1 Next Generation Air/Ground Communications (NEXCOM)
Briefing for Seminar on Implementation of Data Link and SATCOM Communications 17-19 November 2003 Bangkok, Thailand Barbara Cassidy Federal Aviation Administration Integrated Product Team for Communications (AND-300)

2 Overview U.S. National Airspace System Air/Ground Communications Infrastructure Spectrum Needs NEXCOM Acquisition What it includes Why it is needed Acquisition Program Elements Multimode Digital Radio Ground System Segment Avionics Development System Demonstrations Notional Transition to NEXCOM Controller-Pilot Data Link Communications Status

3 National Airspace System Air/Ground Communications Infrastructure
720 BUEC’s Back up Emergency Communications 346 Airport Towers 1422 RTR’s Remote Transmitter Receiver 793 RCAG’s Remote Communications Air/Ground 175 TRACON’s Terminal Radar Approach Control VHF and UHF ATC bands Approximately 11,000 VHF assignments Approximately 40,000 VHF and 10,000 UHF TX, RX & TCVRs Dedicated networks for each operational environment Limited restoral capabilities Limited remote maintenance capability 21 ARTCC’s & 3 CERAP’s Air Route Traffic Control Center, Combined Center Radar Approach Control 1854 RCO’s Remote Communications Outlet 61 AFSSs, 14 FSSs Automated Flight Service Stations, Flight Service Stations

4 National Airspace System Air/Ground Communications Spectrum Needs Projection
Projected High Demand: 190 Circuits per year Long term historical trend 2200 Projected Circuit Supply/ Risk 1500 1000 2015 2021 2007 2013 2010 Projected Low Demand 80 Circuits per year FAA Baselined Program Plans Initiating study to determine means/costs of extending to 2015

5 What is NEXCOM? FAA’s program to modernize and improve VHF air/ground communications in the National Airspace System (NAS) Fundamental change from analog to digital technology VHF Digital Link Mode 3 (VDL-3) Time Division Multiple Access Technology Maintains current 25 kHz frequency separation, but Provides 4 non-interfering channels on 1 frequency All channels suitable for voice or data Operates in the MHz band allocated for Air Traffic use Impacts both ground and airborne elements of the NAS

6 Why NEXCOM? Capacity  Up to 4x Increase in Channels
Spectrum Depletion Limits NAS Expansion Efficiency  Provides for Data Link Establishes a High Integrity Data Path Broadcast and two-way datalink to meet future Concept of Operations Safety  Digital System Allows Advanced Capabilities Eliminates “Step On” (anti-blocking; urgent downlink) Provides Stuck Microphone Resolution Infrastructure Sustainment Average age 25+ years for ground radio equipment

7 NEXCOM Acquisition Program Elements
MDR Radio Interface Unit Ground Network Multimode Digital Radio (MDR) Ground System (RPDE and FSD)* Analog & Digital modes in one radio * Rapid Preliminary Development Effort and Full Scale Development Certified Avionics Development Demo/Stakeholder Outreach Analog & digital voice and data in a single cockpit radio Show NEXCOM system architecture and commercial avionics viability

8 NEXCOM Multimode Digital Radio (MDR)
Compatible with today’s radios Double Side Band-AM 25 kHz 8.33 kHz VDL Mode3 Interfaces to the future NEXCOM Ground System Replaces current NAS ITT & Motorola CM200 radios Initial use is replacement of aging radio infrastructure Contract Awarded July 2001 to ITT Potential procurement of 37,600 radios Initial Operation Capability mid-2004 First use in 25 kHz analog mode (infrastructure replacement function) Transparent to users

9 NEXCOM Ground System Development
VHF T/R Radio Interface Unit Ground Network Radio Interface Unit (RIU) Provides remote site capability for digital communications Ground Network Interface (GNI) Provides connectivity for voice switches Two-Phase Development Rapid Preliminary Development Effort (RPDE) (Mar 2002-Dec 2004) ITT Corp and Harris selected as vendors in Feb 2003 Full Scale Development Program (FSDP) (Jan 2005-Dec 2007) Only RPDE vendors compete Equipment available for deployment beginning 2008 Initial use as infrastructure replacement of current Radio Control Equipment (RCE)

10 NEXCOM Avionics Development
Components Multimode VHF radio Radio Control Panel Communications Management Unit (optional) FAA/Manufacturer Agreements Rockwell Collins, Honeywell – air carriers (December 2001) Avidyne – general aviation (December 2001) Rockwell Collins – business jets (August 2003) Agreements include cost sharing and payable events Pre-production models used in System Demonstration II (November 2003) Certified avionics commercially available in 2005

11 NEXCOM Near-Term Acquisition Schedule
FY 03 FY04 ACTIVITY MDR Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Production Acceptance Testing 09/03 Flight Coverage Testing 10/03 02/04 Production Equipment Deployment Ground System RPDE Contract Awards 02/03 System Requirements Review 05/03 System Design Review 11/03 Avionics Draft VDL Mode 3 Characteristics submitted to AEEC 09/03 Interoperability Testing 06/03 08/03 Notice of Availability TSO 03/04 System Demo II 11/03

12 NEXCOM System Demonstrations
Series of three demonstrations Demo I, II at FAA Tech Center Demo III at location to be determined Objectives Oct 2002: VDL Mode 3 Technology viability Nov 2003: NEXCOM Avionics & System Architecture Interoperability Vendors provide pre-production avionics Oct 2004: Operational Suitability Support certification of commercial avionics

13 System Demonstration II
Culmination of Interoperability Testing Activities Demonstrated the NEXCOM Avionics: Commercial Viability Affordability Availability Held November 5th and 6th, ,2003 William J Hughes Technical Center in Atlantic City, NJ

14 National Airspace System Notional Transition to Digital Communications
Analog Voice, 25 KHz Initial Datalink (VDL-2) Full Operational Evaluation & Exercise of Digital Voice and Datalink (VDL-3) Next 5 years Circa 2013 Maintain Terminal Analog Voice Implement VDL-3 Digital Voice Expand Datalink VDL-2 Applications Circa 2015 Expand Enroute Digital Voice (VDL-3) Initiate Terminal Digital Voice (VDL-3) Increase Datalink Capacity & Capability (VDL-2 & VDL-3) Circa 2018 Expand Digital Voice (VDL-3) to all domains Expand Datalink Capacity in all domains and all applications (VDL-2 & VDL-3)

15 Controller-Pilot Data Link Communications Status
Controller-Pilot Data Link Communications (CPDLC) Build-1A Project being reworked User equipage too slow Out of sync with En Route Automation Modernization (ERAM) Air Route Traffic Control Center automation program CPDLC deployment ahead of ERAM would have resulted in need to re-host CPDLC into ERAM Miami operational evaluation continues In daily use by controllers and pilots Continuing role as operational test bed Long term plans are being developed FAA remains committed to ATC Data Communications

16 Visit the FAA’s NEXCOM website:

17 Back Up Slides

18 Honeywell – VDL Avionics
Test Pallet Configuration One VHF Digital Radio (VDR) One Radio Tuning Panel (RTP) One Communications Management Unit (CMU) Emulator Ancillary Equipment (Breakout Panels, etc.) Subnetwork - Uncompressed Connectionless Network Protocol (CLNP) Significant Accomplishments Analog & Digital Voice Transmission & Reception 4V, 3V, and 2V2D Configurations Antiblocking Transmitter Timeout Next Channel Uplink Two User Groups On Same Frequency (Air-to-Air Testing) Timing State 1 (TS1), Timing State 2 (TS2), & Timing State 3 (TS3) Controller Override Service Level Status Integrated Voice and Data

19 Rockwell Collins – VDL Avionics
Test Pallet Configuration Two VHF Digital Radios (VDR) Two Radio Tuning Panels (RTP) One Communications Management Unit (CMU) One Control Display Unit (CDU) Ancillary Equipment (Speakers, Data Trac Recorder, etc.) Subnetwork - Raw 8208 (Packet Layer Protocol) Significant Accomplishments 4V, 3V, and 2V2D Configurations Analog & Digital (VDL Mode 3) Voice Transmission & Reception Verified Controller Override Next Channel Uplink Antiblocking Urgent Downlink Request Two User Groups On Same Frequency Service Level Status TS1, TS2, TS3 Stuck Microphone Resolution Integrated Voice and Data CPDLC Data Transfer

20 Avidyne – VDL Avionics Test Pallet Configuration
One VHF Digital Radio (VDR) Laptop Casing (Shock Mount) Diagnostics Laptop Ancillary Equipment (Speakers, power strips, etc) Subnetwork - Compressed CLNP Significant Accomplishments 4V, 3V, and 2V2D Configurations Analog & Digital Voice Transmission & Reception Verified Two User Groups On Same Frequency Next Channel Uplink Urgent Downlink Request Controller Override Antiblocking Transmit Status Stuck Microphone Resolution TS1, TS2, TS3 Integrated Voice and Data

21 NEXCOM Principles of Operations -
NEXCOM History RTCA initiated SC-172 to develop solution; VDL MASP started RTCA & ICAO recommended future A/G communication system be TDMA VDL-3 FAA/MITRE VDL-3 radio prototype tested ICAO/JCAB/ EuroControl/UK/ FRG/FAA complete VDL-3 SARPs validation NEXCOM Aviation Rulemaking Committee (NARC) Report 1991 1994 1997 1999 2001 1990 1993 1995 1998 2000 2002 DOT/FAA approved the Mission Needs Statement for NEXCOM ICAO AMCP recommends approval of VDL-3 RTCA publishes NEXCOM Principles of Operations - VDL-3 Specific ICAO identified VHF congestion problem RTCA/AEEC selected technical characteristics for VDL2/3 Investment Analysis completed, VDL-3 selected as FAA solution FAA JRC approves new NEXCOM VDL-3 Program Baseline ICAO COM/OPS/DIV Meeting approved VDL-3 for future communications

22 Acronyms

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