Page 16 - ITU-T Focus Group on Aviation Applications of Cloud Computing for Flight Data Monitoring - Avionics and Aviation Communications Systems

ITU-T Focus Group on Aviation Applications of Cloud Computing for Flight Data Monitoring
Avionics and Aviation Communications Systems

Time of triggering event
FDR standard 2 minutes 5 minutes 10 minutes
before end of flight before end of flight before end of flight
512 wps 2 hours of 5 hours of 11 hours of
data sent data sent data sent

256 wps 4 hours of 11 hours of 23 hours of
data sent data sent data sent

64 wps 18 hours of 45 hours of 99 hours of
data sent data sent data sent

8.4.2 Data link systems performance

Information relating to the capabilities and bandwidth of various terrestrial and satellite data link technologies
are defined in Appendix 3. Appendix 3 includes two tables: one with terrestrial data link characteristics for
VDL Mode 0/A, VDL Mode 2, HF (high frequency) data link (DL), VDL Mode 4, UAT/978, 1090ES, GBAS/GRAS
VDB and air-to-ground (ATG) using EvDO and LTE technologies, and the other one with satellite data link
characteristics for L-band GEO Equatorial of various generations (I3, I4), L-band LEO, Ku-band GEO and Ka-
band GEO technologies.
Appendix 3 provides information for each technology including example providers, link use mode (air-ground,
ground-air, and air-air), altitude restrictions, geographic coverage, frequency band, data rate, safety classification
and latency. The data rates associated with each link are extracted and provided in the tables below:
Satellite L-band GEO
technology Classic Aero H/H+ Swift64 SwiftBroadband
Data rate (from 0.6 –10.5 kbps 64 kbps 432 kbps
aircraft)

Satellite
technology L-band LEO Ku-band GEO Ka-band GEO

Data rate (from 2.4 kbps 1 Mbps 5 Mbps
aircraft)

Terrestrial VDL 0/A VDL 2 HF DL VDL 4 UAT/978
technology
Data rate 2.4 kbps 31.5 kbps 0.3 – 1.8 bps 19.2 kbps 1 Mbps
(from aircraft)

Terrestrial
technology 1090ES GBAS/GRAS VDB ATG EvDO Rev. A ATG EvDO Rev. B ATG LTE
Data rate 0.695 kbps 31.5 kbps 1.8 Mbps 3.6 Mbps TBD
(from aircraft)

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