scope:

SCOPE OF THE DOCUMENT

As Internet Protocol (IP) standards mature and current communication technologies are upgraded or new systems are developed, a move to IP-based communication becomes a more viable and attractive alternative to existing technologies. Enterprises can begin to leverage the benefits stemming from a unified IP based communications strategy including greater network flexibility due to better scalability, lower life-cycle costs and ultimately better performance.

The Aviation Industry's planned end-state has recently been identified as one based on the ATN/IPS standards. ICAO has planned to adopt the IPS standards for future aeronautical datalink communications to enable seamless, broadband, end-to-end communications supporting all of the aviation ecosystem.

ICAO CP has directed that the ICAO Doc. 9896 Edition 2 (2015) be updated to complete the air-ground IPS requirements and RTCA requested to develop the corresponding A-G IPS Profiles and Minimum Aviation System Performance Specification (MASPS) documents in RTCA Special Committee 223. All future FAA Aviation systems, including System Wide Information Management (SWIM) and Unmanned Aircraft System (UAS) Command & Control (C2) Beyond Radio Line-of-sight (BRLOS) networks, can then be designed and developed leveraging these new communication standards to enable more effective and efficient sharing of data.

For a coordinated ATN/IPS deployment between US and Europe, EUROCAE also created WG-108 to provide a guidance document for ATN/IPS certification and deployment in Europe.

Following the two initiatives described above, RTCA SC-223 and EUROCAE WG-108 decided to work together on joint deliverables to ensure IPS consistency over US and EUROPE. The joint group has developed:

• IPS MASPS on IPS end-to-end deployment and certification,

• IPS Profiles.

Based on the scope defined in the MASPS, the IPS profiles will leverage the IETF RFCs and their updates. However, aviation specific requirements will be addressed in the detailed profile.

The Scope and objectives of work undertaken by SC-223 and WG-108 for the IPS Profiles and MASPS include:

SCOPE

o Describe the IPS operational environment (OSED/CONOPS)

o Safety assessment for IPS operations

o Security assessment for IPS operations

o Security operations (SecOps)

o Allocate security requirements to IPS subsystems

o Allocate safety requirements to IPS subsystems

o Allocate performance requirements (QoS, availability, reliability) to IPS subsystems

o Allocate functional requirements to IPS subsystems

o Specify the validation mechanism

PURPOSE AND SCOPE OF THE MASPS

This document contains Minimum Aviation System Performance Standards (MASPS) for Aeronautical Telecommunications Network, Internet Protocol Suite (ATN/IPS). ATN/IPS is fully defined operationally in the Operational Services and Environment Definition (OSED) which is included as Annex A.

This IPS MASPS specifies system characteristics, IPS is composed of several individual components, which are implemented in the aircraft as well as part of the ground infrastructure. This MASPS should be useful to designers, manufacturers, installers, service providers and users of systems.

Compliance with this standard is recommended as one means of ensuring that the IPS system and each of its subsystem will perform its intended function(s) satisfactorily under all conditions normally encountered in routine aeronautical operations for the environments intended. One potential use of this MASPS is to support early ATN/IPS development and prototyping. Additionally, the MASPS may be invoked by one or more regulatory documents and/or advisory documents (e.g., certifications, authorizations, approvals, commissioning, advisory circulars, notices, etc.) and may be implemented in part or in total. Any regulatory application of this document is the sole responsibility of appropriate governmental agencies.