Joe Cramer September 2010
description
Transcript of Joe Cramer September 2010
Aerospace Vehicle Systems Institute
Update on WRC-12 Issues Impacting Wireless Avionics
Intra-Communications (WAIC)
ITU-R Working Party 5Band Future Regulatory
Considerations
Joe Cramer
September 2010
Aerospace Vehicle Systems Institute
Agenda
AVSI and WAIC
Importance of WAIC
WRC-12 Agenda Items Impacting WAIC
AI 1.11
AI 1.12
ITU-R Working Party 5B Update Issues Discussed and Documents
Potential Future WRC Agenda Item
ICAO and Future Course of Action
ICAO and ITU-R Support
Aerospace Vehicle Systems Institute
What is the Aerospace Vehicle Systems Institute (AVSI) Aerospace Vehicle System Institute - A cooperative of companies, academia and
government agencies. Members include Airbus, BAE Systems, Boeing, Bombardier, Embraer, Goodrich, Gulfstream, GE Aviation, Honeywell, NASA, United Technologies.
Focus on developing improved aerospace vehicles.
Creates an environment for collaboration on research and development projects; investigates emerging technologies; and influences standards and policies to promote cost effective systems development and certification.
What is Wireless Avionics Intra Communications (WAIC) Radiocommunication between two or more points on a single aircraft. Includes integrated wireless components and/or installed components. Part of a closed, exclusive network required for operation of the aircraft. Does not provide air-to-ground, air to satellite, or air-to-air communications. Only safety related applications are being contemplated.
AVSI and WAIC
Aerospace Vehicle Systems Institute
WAIC Technical Characteristics
WAIC is based on short range radio technology (< 100m)
WAIC operates with low transmission power (< 10 mW)
Main application area is internal, within fuselage/cabin
External transmission via directive antennas (e.g. landing gear, wings)
WAIC is to be classified as AM(R)S because: (cf. RR Article 1.33)
communication in WAIC systems takes place between aircraft stations
communication in WAIC systems is related to safety and regularity of flight
WAIC systems will be installed primarily onboard civil aircraft operated along national or international civil air routes
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Environmental Benefits Less wiring will reduce aircraft weight, enabling less fuel burn.
Increased Reliability Fewer connector pins/failures, cracked insulation, & broken conductors Mesh networks could provide redundancy
Safety Improvements: Wireless links can provide redundancy Reduce amount of aging wiring and associated malfunction issues
fewer connector pins/failures, lower risk of cracked insulation & broken conductors
Importance of WAIC to Aviation Industry
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Operational Efficiency Improvements Ability to obtain more data from aircraft surfaces Easier and more reliable access to maintenance data, particularly for
rotating and moving parts (e.g. wheel wells, actuators, etc.) Less wire maintenance to remediate chafing conditions Simplify and reduce life-cycle cost of airplane wiring Reduced weight should save fuel costs
Importance of WAIC to the Aviation Industry
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Communications between Aircraft and Ground
SatelliteCommunication
Communications between aircraft
AirportAirport
SatelliteSatellite
PAX ConnectivityPAX Connectivity
September 2010
Wireless Avionics Intra-Communications (WAIC)
Machine-to-
Machine
Machine-to-
Machine
External
External
Internal
Internal
Cabin CrewCabin Crew
Flight Deck CrewFlight Deck Crew
Mobile PhoneLive-IP
Mobile PhoneLive-IP
Radio, TV, IFE
Radio, TV, IFE
Scope of WAICScope of WAIC
Cabin crew voice/data
Cabin crew voice/data
Flight deck crew voice/data
Flight deck crew voice/data
Video surveillance
Video surveillance
Cabin ControlCabin Control
SensorsSensors
Structural sensorsStructural sensors
Cargo dataCargo data
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Examples of Potential WAIC Applications
Low Data Rate, Interior Applications:
Sensors: Cabin Pressure - Smoke Detection - Fuel Tank/Line - Proximity - Temperature - EMI Incident Detection - Structural Health Monitoring -
Humidity/Corrosion Detection
Controls: Emergency Lighting - Cabin Functions
Low Data Rate, Outside Applications:
Sensors: Ice Detection - Landing Gear Position Feedback - Brake Temperature -Tire Pressure - Wheel Speed - Steering Feedback -Flight Controls Position Feedback - Door Proximity - Engine Sensors -Cargo Compartment - Structural Sensors
High Data Rate, Interior Applications:
Sensors: Air Data - Engine Prognostic -Flight Deck/Cabin Crew Still Imagery / Video
Comm.: Avionics Communications Bus - FADEC Aircraft Interface -Flight Deck/Cabin Crew Audio / Video (safety-related) -Flight -Operations related Digital Data (e.g. EFOS…)
High Data Rate, Outside Applications:
Sensors: Structural Health Monitoring - Imaging Sensors (Still and Video)
Controls: Active Vibration Control
Comm.: Avionics Communications Bus
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WRC-12 Agenda Items Impacting WAIC
Agenda Item 1.12 Seeks to determine if the aeronautical mobile service should not be
permitted in the 37-38 GHz band
No current aviation systems in this band. Until 2008, no aviation systems were considered in this band. However, WAIC might be able to use this band
ICAO Position To oppose excluding aeronautical use of the existing mobile service
allocation in the band 37 - 38 GHz. To support the use of technical protection limits to ensure that any future AMS system in the band 37 - 38 GHz will be compatible with other co-primary services.
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WRC-12 Agenda Items Impacting WAIC
Agenda Item 1.12CITEL Draft Position – Consistent with ICAO PositionCEPT Position – Eliminate Aeronautical Mobile ServiceAPT Position – Support the sharing studies ASMG Position – Support sharing studies & eliminate AMS if studies show sharing is not possible
ATU Position – TBDAerospace Industry wants to protect Space Research ServiceNot likely that Fixed applications will intersect with aircraft. WP 5B provided preliminary technical information to WP 7B and
to 5C (responsible groups)WP 5B asked 7B if any WAIC classifications are acceptable.
No response
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WRC-12 Agenda Items Impacting WAIC
Agenda Item 1.11 Seeks to permit the Space Research Service in the 22.55-23.15 GHz
band.
Liaison statement to WP 7B sent that states WAIC will not consider this band.
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ITU-R Working Party 5B - Update
WP5B is lead ITU-R Group
WAIC Draft New Report Inputs from CEPT, US, Brazil and Canada
Technical Characteristics and Operational Objectives of WAIC Systems
Sent to Study Group 5 for approval at November Meeting
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ICAO and Future Course of Action
Likely Future WRC Agenda Item for WAICDraft Proposals being circulated in US, Brazil, Germany (possibly CEPT or multi-country), and possibly Canada.
World-wide allocation(s) must be obtainedSpectrum usage must fall within ICAO Convention in order to
obtain benefits for equipment certification. No bands being proposed in Drafts
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ICAO and ITU-R Regional Support
If an Agenda Item is approved, then support from ASMG, ATU and ICAO is required
Because WAIC will provide safety benefits, how should it be incorporated into the ITU-R Regulations? AM(R)S? Mobile Service with Footnote providing priority? Other? The Service Definition chosen for WAIC requires support
Need to consider how to meet ITU and ICAO requirements: Obtaining AM(R)S spectrum will be extremely difficult given the fact
WAIC will have to share band with incumbent service.
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Classic AM(R)S/AMS(R)S
Ground Station
Aeronautical Mobile (Route) Service (AMS) - example:
•HF Voice – (2 - 30 MHz)
•VHF Voice – (117.975 -137 MHz)
Satellite
Aeronautical Mobile Satellite Service
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ICAO and ITU-R Regional Support
WAIC could be classified as AM(R)S - it complies with RR Article 1.33
1.83 aircraft station: A mobile station in the aeronautical mobile service, other than a survival craft station, located on board an aircraft. A WAIC transmitter can be considered an “aircraft station” because it is
located on an aircraft.
1.32 aeronautical mobile service: A mobile service between aeronautical stations and aircraft stations, or between aircraft stations, … Communication between WAIC transmitters conforms with the
requirement “between aircraft stations”. 1.33 aeronautical mobile (R)* service: An aeronautical mobile service
reserved for communications relating to safety and regularity of flight, primarily along national or international civil air routes. WAIC applications are defined as limited to safety applications.
WAIC systems will be installed onboard civil aircraft operated along national or international civil air routes