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Commission Regulation (EC) No 29/2009Show full title
Commission Regulation (EC) No 29/2009 of 16 January 2009 laying down requirements on data link services for the single European sky (Text with EEA relevance)
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- Revised 08/03/20200.25 MB
- Revised 29/07/20190.27 MB
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- Revised 06/02/20090.09 MB
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ANNEX IVRequirements referred to in Articles 5, 6, 7, 8 and 9
Part A:Requirements for end-to-end communications
1.End-to-end data communications shall ensure seamless provision and use of communication services in the airspace referred to in Article 1(3).
2.End-to-end data communications shall support the exchange of messages in support of the data link services defined in Annex II, in accordance with a common standardised messages set.
3.End-to-end data communications shall support a common standardised end-to-end protection mechanism to ensure the integrity of messages received consistent with safety requirements of the data link services defined in Annex II.
Part B:Requirements for air-ground communications based on ATN and VDL Mode 2
1.Air-ground communications shall be designed to support end-to-end communications and to ensure seamless provision and use of communications services to air-ground applications defined in the ICAO standards specified in points 2 and 3 of Annex III in the airspace referred to in Article 1(3).
2.Air-ground communications shall comply with safety and performance requirements of the data link services defined in Annex II.
3.Air-ground communications shall be based on a common addressing scheme.
4.The transmission and reception of data units between ground and aircraft systems hosting the air-ground applications defined in the ICAO standards specified in points 2 and 3 of Annex III shall be based on communication protocols which comply with the ICAO standards defining the Aeronautical Telecommunication Network referred to in point 4 of Annex III.
5.The ground and aircraft communication system characteristics and the transmission and reception of bit frames between ground and aircraft communication systems shall comply with the ICAO standards defining the very high frequency digital link, VDL Mode 2, referred to in point 5 of Annex III.
Part C:Requirements for air-ground communications based on other communication protocols
1.Air-ground communications shall be designed to support end-to-end communications and to ensure seamless provision and use of communications services to air-ground applications defined in the ICAO standards specified in points 2 and 3 of Annex III in the airspace referred to in Article 1(3).
2.Air-ground communications shall comply with safety and performance requirements of the data link services defined in Annex II.
3.Air-ground communications shall be based on a common addressing scheme.
4.The transmission and reception of bit frames between ground and aircraft communication systems shall be based on communication protocols fulfilling the conditions set out in Part D.
Part D:Conditions referred to in Part C
1.Communication protocols must support end-to-end communications.
2.Communication protocols must be subject to a safety case to demonstrate compliance with safety and performance requirements of the data link services defined in Annex II.
3.Communication protocols must support bidirectional point-to-point communications using those parts of the radio frequency spectrum identified by ICAO as suitable for air–ground data communications in support of air traffic services.
4.Communication protocols must include a mechanism to manage mobile connectivity between ground and airborne stations in a transparent way.
5.Communication protocols must be specified and validated with respect to airworthiness regulations and operational approval regulations applicable to aircraft communication equipment.
6.Communication systems supporting these protocols must not create harmful effects on airborne and ground installations supporting VDL 2.
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