next generation air/ground communications (nexcom) presented to atn 2002 london, england 25...
TRANSCRIPT
![Page 1: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/1.jpg)
Next Generation Air/Ground CommunicationsNext Generation Air/Ground Communications
(NEXCOM)(NEXCOM)Presented to
ATN 2002London, England
25 September 2002
James H. WilliamsCommunications Integrated Product Team Lead
Federal Aviation Administration
![Page 2: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/2.jpg)
2
Overview
• NEXCOM Acquisition Program Update
– Program Objectives
– Program Elements
– Transition to NEXCOM
• NEXCOM Voice Features
– Basic Voice
– Enhanced Voice
• NEXCOM Data Link Transition
![Page 3: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/3.jpg)
3
NEXCOM Objectives
National Airspace System Infrastructure Sustainment
National Airspace System Infrastructure Modernization
1422 RTRs
61 AFSSs, 14 FSSs
793 RCAGs
1854 RCOs
175 TRACONs
346 Towers720 BUECs
![Page 4: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/4.jpg)
4
NEXCOM Acquisition Program Elements
System Demo ProgramAvionics
Multimode Digital Radio
Analog & digital modes in one radio Digital capability
Ground SystemVHF T/R
RadioInterface
Unit
GroundNetworkInterface
Analog & digital in single cockpit radio
Show NEXCOM system architecture and commercial
avionics viability
![Page 5: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/5.jpg)
5
NEXCOM Multimode Digital Radio
![Page 6: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/6.jpg)
6
NEXCOM Ground System Segment
Voice Switch
Voice2V2D ConfigurationGNI
DLAP
ATN Router
Data
Data
CombinedVoice & Data
Avionics
RCAG
VHF Tx/Rx M/S
RadioInterface
UnitUHF Tx/RxM/S
BUEC
VHF Tx/Rx
UHFTx/Rx
RadioInterface
Unit
CMU
Voice
Data
![Page 7: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/7.jpg)
7
NEXCOM Avionics
FAA/Manufacturer Agreements
Airlines Airlines
GeneralAviation
BusinessAviation
![Page 8: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/8.jpg)
8
NEXCOM System Demonstration Program
Objectives
– Oct 02: VDL Mode 3 Technology viability
– Oct 03: NEXCOM Architecture feasibility
– Oct 04: Operational suitability
![Page 9: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/9.jpg)
9
National Airspace SystemTransition to NEXCOM
Dem/ValDem/Val
• Analog Voice, 25 KHz
• Initial Datalink (VDL-2)
• Full Operational Evaluation& Exercise of Digital Voiceand Datalink (VDL-3)
Next 5 years
VDL-2 Datalink
AnalogVoice
5-10 years
• Maintain Terminal Analog Voice
• Implement VDL-3Digital Voice
• Expand Datalink VDL-2Applications
Enroute High Airspace
National Airspace
RCAGARTCC
VDL-3Link
10-15 years
• Expand EnrouteDigital Voice (VDL-3)
• Initiate TerminalDigital Voice (VDL-3)
• Increase Datalink Capacity& Capability (VDL-2 & VDL-3)
TerminalAirspace
15-20 years
• Expand Digital Voice (VDL-3) to all domains
• Expand Datalink Capacityin all domainsand all applications(VDL-2 & VDL-3)
AFSS
![Page 10: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/10.jpg)
10
NEXCOMKey Basic Voice Features
• Anti-Blocking
– Resolution for stepped-on transmissions
• Controller Override
– Controller can preempt ongoing aircraft transmission
for urgent control message
– Resolution for aircraft “stuck mike”
![Page 11: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/11.jpg)
11
NEXCOMKey Enhanced Voice Features
• Enhanced Voice features require a context
management application to enable the system to
identify specific aircraft
• Next Frequency– Uplink of next frequency for pilot concurrence/action
– Coupled with CPDLC transfer of communications
• Urgent Downlink Request– Cockpit-generated data message to controller that pilot has
an urgent transmission to make
![Page 12: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/12.jpg)
12
NEXCOMData Link Transition
• Increased use of data link is essential to increasing the capacity of the NAS
• CPDLC is FAA’s application for air traffic control messages
• FAA views VDL Mode 2 and VDL Mode 3 as complementary, not competing technologies
• CPDLC Build 1 and 1a initially will be fielded on VDL-2
– Only viable technology in required time (2005 NAS-wide)
– Stepping stone for data link use in air traffic control
![Page 13: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/13.jpg)
13
NEXCOMData Link Transition
• Growth in CPDLC Use– Increases system and user benefits but
– Also drives up FAA costs
• CPDLC on VDL-3 means– Predictable costs to FAA
– No added service costs to users
• Continued availability of CPDLC on VDL-2– Independence of networks a safety backup benefit
– FAA could not continue to fund message costs
![Page 14: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/14.jpg)
14
Discussion
![Page 15: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/15.jpg)
15
Spectrum Depletion
The FAA predicts VHF Spectrum Saturation in the National Airspace System by 2009
![Page 16: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/16.jpg)
16
Frequency Congestion Cost and Efficiency Implications
5
10
15
20
25
1998 2003 2008 2013 2018 2023 2028
Year
Cir
cu
its
(1
00
0s
)
Increasing Cost and Difficulty of Provisioning New Circuits
Unsatisfied DemandReduces NAS Efficiency
Historically, circuit growth hasbeen 4% per year.
Increasing cost/difficulty of placing new circuits reduces growth rate.
Reduced growth rate implies a less-efficient NAS.
Growth in A/G Circuit Demand
# Deployed A/G Circuits
23 spectrum recovery initiatives (ASR)
![Page 17: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/17.jpg)
17
NEXCOM System Architecture
Voice Switch
Voice2V2D ConfigurationGNI
DLAP
ATN Router
Data
Data
CombinedVoice & Data
Avionics
RCAG
VHF Tx/Rx M/S
RadioInterface
UnitUHF Tx/RxM/S
BUEC
VHF Tx/Rx
UHFTx/Rx
RadioInterface
Unit
CMU
Voice
Data
![Page 18: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/18.jpg)
18
System Demo IEquipment• Air: MITRE Prototype• Ground:
• ‘99 Configuration• ITT MDR with FAA
Prototype RIU
Oct 02 Oct 03 Oct 04
Operational System Demo
SystemDemo I
Objective: Show VDL-3
technology is viable
Demonstrates:• Coverage• Voice Quality• Voice
Override• Integrated
Voice and Data
Objective:Show NEXCOM
system architecture viability
Demonstrates:• Sector
Handoffs• ATN Network
Interoperability• System
Management• Commercial
infusion• Technology
maturation
Objective:Show
commercial avionics certifiability and operational suitability
Demonstrates:• Operational
digital voice• Commercial
avionics• Human factors
SystemDemo II
System Demo IIEquipment• Air:
• MITRE & FAA Tech Center Prototypes• Vendor Avionics (prototype)
• Ground: • ITT MDR with FAA Prototype
RIU• DoD Participation• Air Carrier Participation
Operational System Demo
Equipment• Air: Vendor Avionics• Ground:
• ITT MDR with FAA Prototype RIU & GNI
• DoD Participation• Air Carrier Participation
NEXCOMSystem Demonstration Program
![Page 19: Next Generation Air/Ground Communications (NEXCOM) Presented to ATN 2002 London, England 25 September 2002 James H. Williams Communications Integrated](https://reader036.vdocuments.us/reader036/viewer/2022062717/56649e365503460f94b24fe7/html5/thumbnails/19.jpg)
19
NEXCOM Schedule
2001 2003 2004 200920052002 2006 2007 2008
System DemoProgram
10/03SystemDemo II
10/04OperationalDemo
10/02SystemDemo I
MultimodeDigitalRadio
7/01Contract Award
MDR deployment
10/02In-ServiceDecision
RuleMaking 1/04
NPRM1/02
RTCAPrinciples of
Operation
6/03Begin
Formal InternalCoordination
6/04Initiate Final Rule
6/05Rule Published
8/03Notice ofAvailability TSO
9/03AEECApprovedChar.
Avionics 10/02Draft
CharacteristicsComplete
8/04CertifiedAircraft
10/01MOPS
12/09Operational
6/05-12/09 Aircraft equip
GroundSystem 10/02
RPDEContract Award
10/01Sys Reqs
Doc
1/05Full Scale Dev Contract Award
07-12 ImplementationValidation & Inter-Operability Tests
with Airborne Avionics4/02SIR
Release
10/07Keysite
5/02FAT
8/03Notice ofAvailability TSO
9/03AEECApprvdChar.
12/01GIAs
5/03Begin
Deployment