Patrick Geurts, SITA, European Data Link Challenges

European Data
Link Challenges
WAC Aviation Arena
4/Mar/2014
By: Patrick GEURTS, Senior Manager
ATM Business Development

2 | European Data Link Challenges| WAC 4 Mar 2014 | © SITA 2014
Contents
1. Quick Historical View
2. Implementing ATN/VDLm2 in Europe
3. The Challenges associated with the
Implementing Rule
4. Conclusion

Quick Historical
View

• SITA:
• Operating the AIRCOM data link services for 25+
years
• Initially based on ACARS
• In support to AOC
• European Data Link Mandate
• Introducing CPDLC/ATN in European upper
airspace
• Based on VDLm2
• Sharing the same infrastructure for AOC and ATC
• Challenges
4
Introduction
| European Data Link Challenges| WAC 4 Mar 2014 | © SITA 2014

5
A/G Data Link for AOC Purpose
Airline Operations depend on Data Link
Aircraft Maintenance
Engine reports via ACARS
enable preventive
maintenance avoiding
costly in-flight breakdowns
Operations Control
Aircraft movement
reports
via ACARS key to
synchronize operations
through airports
Flight Planning
Flight plans & weather
transmission to
cockpit
enable efficient
operation
of modern aircraft
Airline Operations have already made the
transition to Data Link

6
SITA support for FANS & ATN
• 1995 : SITA supports
FANS-1 usage since first
certification
• 2000 SITA deploys VDL
capability developed in
1990’s
• 2005 SITA adds
operational ATN routers for
Eurocontrol
• 2008 SITA is ATN/VDLm2
CSP for Eurocontrol
Maastricht
• SITA has VDL
partnerships with ANSP’s of
Germany, France,
Switzerland, Spain,
Portugal, Saudi Arabia.
ATC Center Airline
FANS CPDLC/
ACARS/VDL
ICAO CPDLC/
ATN VDL
ATN
Router
ACARS
Processor
AOC
ACARS/
VDL

SITA VDLm2 Coverage in Europe
VDL service delivered:
• in Spain through
partnership with AENA
• in Germany through
partnership with DFS
• in France through
partnership with DSNA
• in Portugal through
partnership with NAV
Portugal
• In Switzerland through
partnership with
Skyguide

Implementing
ATN/VDLm2 in
Europe

9
Contents
1. Quick Historical View
2. Implementing ATN/VDLm2 in Europe
3. The Challenges associated with the
Implementing Rule
4. Conclusion

VGS Partnership Model
Win / Win Approach
- SITA outsources the provision of its
A/G communication service (AOC, ATC)
to the ANSP
- SITA contributes to the ANSP costs for
operating the A/G infrastructure
- The ANSP deploys a state-of-the art A/G
datalink communication infrastructure at a
fraction of the costs it would sustain if
developed from scratch
- The ANSP owns and operates the
infrastructure and
develops its know-how
- The ANSP receives a cost contribution that
is directly linked to the volume of AOC traffic

11
ATN Service Model

The Challenges
associated with
the
Implementing
Rule

13
The Challenges associated with the
Mandate
VDLm2 multifrequency
Testing and
Certifying
Performance/PAs
AOC/ATC
Co-existence
Non-AOC
Operators

Performance / PAs
14
 ATN Provider Abort: investigation within Data Link
Implementation Service Group (Eurocontrol CRO, ANSP,
CSP, airlines, aircraft and avionics manufacturers)
 Detected and investigated since the early implementation of
ATN CPDLC during LINK2000+ PSG meeting, now DLISG.
 Several problems have been confirmed and corrected (CSP
radio or network, VDR Deafness, CMU software)
 New problems appear and require further investigations.

Performance / PAs
15
• An agreed service monitoring scope is required – taking
into account the complete end to end service delivery
chain
 Role of the Central Reporting Office
 Harmonization of indicators, their metrics and the reporting
process
• If investigations indicate frequency congestion, then
stakeholders may consider to expedite multi frequency in
Europe
• This is a dynamically changing ecosystem

Certification Framework
16
• ATC usage of data link requires aviation certification authority
intervention
• European Aviation Safety Agency plans to certify ATC use of VHF data link and
in some way the VHF data link networks used – impact is unclear
• Regulatory framework (i.e. Regulation 552/2004) applies to ATC Components or
systems, but what about a service?
• ATC usage can create liabilities that cannot be sustained or
justified by airline community VHF data link network operators
• ANSP’s often need to comply with government policy on contractual liability
which may be incompatible with airline community network operator policies
• Better certification harmonization is required at European Levels
• Avoid contradicting national requirements
• Streamline and optimize the certification process

Other Challenges
17
• How to reach non-AOC aircraft?
 Rules of Engagement defined by the Link 2000+ Program
 Need to raise awareness of non-AOC aircraft Operators
• VDL Multi-frequency
 CSC Channel loading is increasing but still low (av. ~ 10%)
 If investigations conclude CSC congestion, then stakeholders may
consider to expedite multi frequency in Europe
 Deployment of multi frequency will require close cooperation between
all operators
• Tight Schedule – Limited Resources
 The next deadline, February 2015, is around the corner
 All ANSPs in the 2015 group are knocking at the door
 We have to address requests in sequence

Conclusions

• Real time monitoring of the end to end service should be done/coordinated at
European level
• Certification and performance requirements imposed by ATC usage of VDL
should be harmonized in Europe
• Airlines and ANSPs need to recognize that ATC usage of VDL will
fundamentally change the VHF data link network operation
• ATC sharing of VDL avionics is a compromise – it avoids airlines needing
additional avionics but the resulting sharing of VDL channels and stations
requires the networks to change to meet ATC requirements
• SITA is keen to continue the collaboration to further investigate VDL / ATN
issues, but it must be a joint effort from all communication operators (CSPs
and ANSPs) as well as other parties like airframers and avionic vendors
19
Conclusion

Thank You!
20
PSBD/ACS

Patrick Geurts, SITA, European Data Link Challenges

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