Communications Operating Concept & Requirements (COCR) ICAO ACP WG-T Montreal 2- 5 October 2007 Gregg Anderson - FAA Danny van Roosbroek - EUROCONTROL 12/8/2018

Outline Purpose of the COCR Development of Version 2.0 Common Evaluation Scenarios Conclusions 12/8/2018

Aircraft Traffic  Communications A Day in 2025 More than double today’s traffic Advanced ATC concept Data is Primary … T -Throughput C - Continuity I - Integrity A - Availability 12/8/2018

COCR development Joint EUROCONTROL/FAA activity through common team Based on potential operational scenarios available at the time in medium and long term Phase 1 – to 2020 Phase 2 – 2020+ Paradigm shift between Phases when data communications becomes the ‘normal’ means of communication Future radio system is aimed at supporting the Phase 2 requirements Primarily for data communication COCR carried out an analysis to support these requirements in various phases of flight 12/8/2018

Overview of the COCR (1/3) Captures the operational requirements for Phase 1 (from now to 2020) and Phase 2 (beyond 2020) Concept in Phase 1 is drawn largely from available material at the time i.e. the EUROCONTROL ATM concept document for 2008-11 & 2020 and beyond Concepts in Phase 2 are based on more extensive use of Phase 1 services and more advanced operations (e.g. 4D Trajectory Management) Autonomous operations take place in some parts of the airspace Based on postulated ATS operational concept using existing documentation and extending it into the future Broadly in-line with SESAR and NextGen concepts of operation 12/8/2018

Overview of the COCR (2/3) From the operational concepts, information flows have been identified in representative test volumes of airspace i.e. ‘positions/sectors’ in Airport, TMA, En Route, & Oceanic. Airport positions & Radar sectors in Phase 1 similar to today Radar sectors larger in Phase 2, perhaps 2-3x. Airport positions pretty much the same as Phase 1 Covers all ATS and AOC air-to-ground and air-to-air voice and data communication Includes ADS-B and AOC applications Includes micro-jets & UAV’s (only ATC control element) Does not include Air Marshall, UAV Command & Control, SWIM, or spacecraft communications 12/8/2018

Overview of the COCR (3/3) Identifies all communication requirements based on safety and security analysis Availability, continuity, reliability and latency Requirements are technology independent Communication requirements are then used in a queuing model for communication loading (b/s per service volume) Aircraft numbers are grown over time using EUROCONTROL SAAM data in ECAC – MLM in US 12/8/2018

Final COCR Version 2.0 Final version of the COCR completed in March 07 – Presented at ACP/1 Responded to comments received on COCR Version 1.0 and clarify areas of ambiguity Ensured satisfactory agreement among stakeholders with some of the more stringent services and the surrounding concept of their use Captured and defined missing services Further defined services to ensure a more complete understanding of their operational use Categorised services into similar safety/operation groups Assessed the safety and security requirements associated with each group Assessed the associated performance requirements impact Used to support the technology assessment 12/8/2018

Requirements - capacity 12/8/2018

Requirements – Other QoS 12/8/2018

Requirements –Latency 12/8/2018

COCR TMA Sectors 12/8/2018

COCR En route Sector 12/8/2018

Evaluation Scenarios Provide a family of generic operational environments based on an extrapolation of the Phase 2 COCR requirements so each expresses the same requirement in different ways Reinterpretation of COCR requirements expressed in a variety of ways that can be better used during the technology assessment work This set of scenarios were used in the technology assessment so as to compare results and identify the technologies in an equitable way 12/8/2018

Test Volumes 12/8/2018

The airport Test Volumes have been defined as: Airport surface The airport Test Volumes have been defined as: TV1.1 Airport Zone: 10NM diameter Cylinder including Runway and Tower operations but excludes surface. TV1.2 Airport Surface: 5NM diameter circle including Clearance/Ramp and Ground components. 5 NM was representative of a large European airport 12/8/2018

Core Europe Concept of Core Regional Test Volumes was introduced: TV4.1-4.4 have been redefined as Core Regional TVs They are representative of a global Large Area Volume (LAV) such as ECAC or NAS. Designed to formulate a generic large area rather than a specific case Characterise a large terrestrial coverage area, or large terrestrial area inclusive of surrounding oceanic airspace regions Core Regional Test Volumes provide a scenario for either TMA or ENR airspace. Core Regional Test Volume designed for assessment of space based technologies. 12/8/2018

Aircraft Traffic Traffic Growth Predicting tool used Ref. Volume Type PIAC Traffic Growth Predicting tool used Busy hour in busy day in 2025 (Phase 2 – COCR) Peak aircraft count chosen for each Test Volume Aircraft traffic assumed to be uniformly distributed within the test volume. TV1.1 Airport Zone – 10NM diameter 26 TV1.2 Airport Surface – 5NM diameter 264 TV2.1 TMA Small – 49 x 49 NM 44 TV2.2 TMA Large – 75 x 75 NM 53 TV3.1 ENR Small – 55 x 55 NM 45 TV3.2 ENR Medium – 100 x 100 NM 62 TV3.3 ENR Large – 200 x 200 NM 204 TV3.4 ENR Super Large 400 x 400 NM 522 1733 TV4.1 Core Regional FL050 – FL245 [TMA] TV4.2 Core Regional FL245 – FL450 [ENR] 2908 1753 TV4.3 Core Reg + Oceanic FL050 – FL245 [TMA] TV4.4 Core Reg + Oceanic FL245 – FL450 [ENR] 3415 12/8/2018

TMA small 12/8/2018

TMA large 12/8/2018

En route large 12/8/2018

En route super large 12/8/2018

The COCR has been the basis for evaluating technologies Conclusions The COCR has been the basis for evaluating technologies Evaluation Scenarios have been used to assess technologies against the requirements in an equitable way The choice of the appropriate scenario was dependent on the technology 12/8/2018

Thank You … 12/8/2018