AERONAUTICAL COMMUNICATIONS PANEL (ACP) TWENTIETH MEETING OF WORKING GROUP M

Transcription

1 Page 1 of 1 ACP/WGM-WP03 22 January 2013 AERONAUTICAL COMMUNICATIONS PANEL (ACP) TWENTIETH MEETING OF WORKING GROUP M Montreal, Canada January, 2013 Agenda Item 7 Updates of AMS(R)S SARPs Documents and associated Technical : Manuals Inmarsat Development Programme for SwiftBroadband Oceanic Safety (Presented by Alan Schuster-Bruce, Inmarsat) SUMMARY At ACP WG-W (September 2011) it was agreed to include into the work programme of WG-M the validation of SwiftBroadband Safety as an additional sub-network for aeronautical safety satellite communications. The development of the necessary ICAO Manual for SwiftBroadband Safety was endorsed at ACP WG-M (May 2012). This two-part working paper provides 1) a presentation-level overview of Inmarsat s forthcoming SwiftBroadband Oceanic Safety Service and 2) preliminary documentation of this information in a format appropriate for inclusion in the ICAO Technical Manual. In both forms, this document gives a high level description of the programme and system, a summary of service objectives and benefits and the timeline for implementation. The preliminary documentation is intended to foster discussion and group input, and is not necessarily intended to be the final form for publication. ACTION The working group is invited to note the information on the SwiftBroadband Oceanic Safety development programme. File: WP03 Cover.doc Revised: 1/22/13 10:29 AM Printed: 1/22/13 10:29 AM

2 WGM WP03 ICAO WG M - January 2013 Agenda Item 7 - Updates of AMS(R)S SARPs Document and associated Technical Manuals SwiftBroadband Programme and Technical Overview Alan Schuster Bruce Manager Aeronautical Product Engineering Dr Chuck LaBerge Consultant to Inmarsat and Co-Chair of RTCA SC222 Agenda SBB Safety Programme Overview SBB Safety Technical Overview 2 1

3 SwiftBroadband Safety Programme Overview 3 SwiftBroadband Today and tomorrow HGA High Gain Antenna IGA Intermediate Gain Antenna Available since 2007 ELGA Enhanced Low Gain Antenna Available from 2014 Background IP Up to 432kbps Up to 332kbps Up to 200kbps Streaming IP Approx250kbps (X-Stream) Up to 128kbps AMBE+2 Voice Yes Yes Yes Up to 32kbps Available from 2014 SBB Safety Yes Yes Yes HDR (High Data Rate) Up to 640kbps Up to 380kbs Up to 150kbps 4 2

4 SBB Oceanic Safety Services - Products Four classes of terminals HGA* *=No classic backup IGA* ELGA* HGA with classic backup All support the following sub-services Data and prioritised IP Data 2-channels of voice (one using Circuit Switched, one using Packet Switched) Down to 5 degrees elevation HGA and IGA provide additional cockpit and cabin IP bandwidth Using one 200 khz RF channel in the AES (e.g. one SIM) 5 ARINC 781 Compact System (with ELGA) Under Development 6 3

5 SwiftBroadband Oceanic Safety Service High Level Schedule SBB Oceanic Safety System Implementation Detailed System Design Implementation Integration & Test RAN 4.0 Upgrade available FANS Evaluation (Flight Trials) Operations SBB Safety Network Service Available Q3-11 Q4-11 Q1-12 Q2-12 Q3-12 Q4-12 Q1-13 Q2-13 Q3-13 Q4-13 Q1-14 Q2-14 Q3-14 Q4-14 Q1-15 Q SBB Safety Benefits at a Glance Better use of spectrum Higher throughput for Data Link apps Maintains RCP performance Increased Efficiency Future Proof Extends Safety to I-4 for cockpit services Allows end-users to adopt new features, otherwise not available on Classic Aero Cost Savings Do More with Less Savings on usage Costs Significant savings on avionics 2xVoice & 1xData in one channel Lower Channel Powers = Smaller Equipment 8 4

6 SBB Safety Standard Organisations ICAO SARPs GOLD (published) SVGM AEEC AGCS ARINC 781 DATA LINK USERS FORUM (DLUF) RTCA SC-222 DO-3XX MASPS DO-262 MOPS ETSI BGAN system standard 9 SwiftBroadband Safety Technical Overview 10 5

7 What is BGAN? What is SwiftBroadband? BGAN is a satellite component of the Third Generation IMT-2000/Universal Mobile Telecommunications System (3G UMTS) Only difference is that BGAN has a proprietary satellite radio interface. BGAN operates over the Inmarsat I4 (4th generation) satellites. BGAN service was introduced for enterprise (Land portable) segment in 2005/2006 on two satellites. Inmarsat introduced in 2007 evolutions of BGAN to offer service in other market segments: land mobile, aviation and maritime. These evolutions run over the same ground infrastructure as Enterprise, share the same RF carriers, are broadly the same but are optimised/tailored for the specific environment. Service was introduced on the third I4 in 2009 SwiftBroadband is the aviation service. 11 SwiftBroadband Logical Architecture Inmarsat CNP 12 6

8 The SBB Safety Architecture Reuse to minimise risk, cost and schedule Reuse Classic Ground Interfaces Reuse Classic Aircraft Interfaces /TCPIP Voice Gateway Voice Gateway CN RAN BGAN Core SAT Link SBB Modem Gateway Voice Gateway W burg/a429 4 wire voice Aero Safety Ground Infrastructure SDU BGAN service with guaranteed availability SBB safety service 13 Satellites Satellite Coverage at 1 Jan 2013 Longitude at 1 Jan 2013 Launch vehicle Launch date Inmarsat-4 F1 Asia-Pacific east Atlas V 11 Mar 2005 Inmarsat-4 F2 Europe, Middle-East, Africa 25 east Sea Launch Zenit-3SL 8 Nov 2005 Inmarsat-4 F3 Americas 98 west Proton-M/Briz- M 18 Aug 2008 Alphasat NA NA Ariane [1] Alphasat is planned to operate at 25 east. I4 F2 satellite locations post Alphasat launch is not yet known. 14 7

9 Inmarsat-4 payload 15 SBB Beam Hierarchy and AES Behavior Feeder Links Power on Forward direction signalling Global Beam Point antenna to satellite Receive initial system info in global Select beam Registration, signalling, paging, and traffic 19 Regional Beams Start traffic Idle in regional End traffic Voice and data traffic 192 Narrow Spot Beams Traffic in narrow Note: under certain circumtances, traffic is carried in regional beams 16 8

10 Narrow Spot Beams on I4F3 - Americas 4F3 at 98W. Narrow Cells SATSOFT Paumalu North Latitude (Degrees) East Longitude (Degrees) 98W Km

11 Thank you Questions? Alan Schuster Bruce Manager Aeronautical Product Engineering Dr Chuck LaBerge UMBC - Consultant to Inmarsat. elaber1@umbc.edu 19 10

12 International Civil Aviation Organization WORKING PAPER ACP-WG-M- 20/WP-03 23/01/13 AERONAUTICAL COMMUNICATIONS PANEL (ACP) NINETEENTH MEETING OF WORKING GROUP M Montreal, Canada January, 2013 Agenda Item 7 : Updates of AMS(R)S SARPs Documents and associated Technical Manuals Inmarsat Development Programme for SwiftBroadband Oceanic Safety (Presented by Inmarsat) SUMMARY At ACP WG-W (September 2011) it was agreed to include into the work programme of WG-M the validation of SwiftBroadband Safety as an additional sub-network for aeronautical safety satellite communications. The development of the necessary ICAO Manual for SwiftBroadband Safety was endorsed at ACP WG-M (May 2012). This working paper provides an overview of Inmarsat s forthcoming SwiftBroadband Oceanic Safety Service. It gives a high level description of the programme and system, a summary of service objectives and benefits and the timeline for implementation. ACTION The working group is invited to note the information on the SwiftBroadband Oceanic Safety development programme. 1. INTRODUCTION 1.1 The Inmarsat SwiftBroadband service, which operates over Inmarsat s Broadband Global Area Network (BGAN) satellite communication network, has been in operation since October 2007, providing voice and broadband data communications to airline passengers. At present, aeronautical safety messages, such as FANS/ data, are supported by Inmarsat s Classic Aero services. This paper describes the ongoing programme of work to enhance the SwiftBroadband service to enable it to meet the ICAO performance requirements for oceanic safety services. 1.2 In addition to providing two channels of voice to the cockpit, the new SwiftBroadband Oceanic Safety services will support FANS/ data. Priority and pre-emption of messages will be (6 pages) WPXX WG-M-20-Inmarsat SwiftBroadband Safety Jan 2013 Document.docx

13 ACP-WGWM-19/WP-2 2 utilised to ensure safety messages reach the cockpit unhindered by the commercial communications traffic load to the cabin. 1.3 A SwiftBroadband Oceanic Safety Services terminal will also be equipped to provide high bandwidth Internet Protocol (IP) data to the cockpit, enabling the future development of cockpit ATS and AOC applications. This high bandwidth data capability will be extensible to support the Aeronautical Telecommunications Network (ATN) and future concepts of operation in Air Traffic Management (ATM). 1.4 The new service also includes functionality to append aircraft position, speed and heading data to all messages transmitted to the ground over the Inmarsat satellite link, thus enabling improved location tracking of oceanic aircraft. 2. SWIFTBROADBAND SAFETY PROGRAMME OVERVIEW 2.1 SwiftBroadband Oceanic Safety Service Objectives 2.2 Airlines and Air Traffic Service Providers are keen to increase airspace capacity and operational and fuel efficiency, whilst maintaining and enhancing safety. To achieve these objectives, there are moves at international level to allow reduced minimum aircraft separations in oceanic and remote areas, in regions of controlled airspace where the satcom performance is proved to be sufficiently available and reliable. The intention is to move from the current typical minimum in-trail separations of 10 minutes/80 NM (Nautical Miles), and 60 NM between tracks, to an in-trail separation of 30 NM and 30 NM between tracks: so-called 30/30 operations or equivalent time-based separations. 2.3 To achieve reduced separations between oceanic aircraft, there is a need for a greater frequency of aircraft position reporting, and to ensure higher datalink service availability. These improvements to the ground-aircraft communications link are required to permit controller intervention, at any time, in the event that an intervention is needed if an aircraft begins to stray from the track specified in its flight plan. This in turn demands an enhancement of the minimum performance level of the communications systems supporting Air Traffic Service (ATS) voice and data safety services. 2.4 The ICAO Global Operational Data Link Document (GOLD) defines the Required Communications Performance (RCP) for the service availability and message transaction times of oceanic FANS/ data communications. The GOLD RCP performance criteria are specified to ensure the provision of a safe operational service for oceanic operations. 2.5 The RCP minimum requirement for the availability of an oceanic datalink communication system in support of a safety service is 99.9% over a 12-month period, (the safety requirement). To meet the more stringent RCP requirement in support of 30/30 separations, the end-toend service availability of the communication system must be at least 99.99% over a 12-month period, (the efficiency requirement). This is a challenging requirement for a single path communications system and the implication is that the satellite communications system includes appropriate redundancy, fail-over and alternate routing mechanisms to mitigate the potential temporary failure of a range of different system constituents. 2.6 Like the Inmarsat Classic Aero services, SwiftBroadband Safety will meet the safety requirement of 99.9% availability. Planned upgrades to the BGAN network should ensure this availability is met, and the SwiftBroadband service availability will meet the efficiency requirement of 99.99% availability following an initial period of in-service operation. A range of High Gain Antenna (HGA),

14 3 ACP-WGW-19/WP-01 Intermediate Gain Antenna (IGA) and Enhanced Low Gain Antenna (E-LGA) SwiftBroadband terminals are being developed by Inmarsat s terminal manufacturer partners to provide the required aircraft functionality in support of the GOLD RCP240 oceanic safety requirement, as shown in Figure 1. SwiftBroadband Safety Services Achieving GOLD RCP240 Performance Availability > Availability > (>0.999 at service introduction) HGA (Class 6) SB/Classic HGA (Class 6) SB Only IGA (Class 7) SB Only E- LGA (SB200 Class 4) SB Only Figure 1: Product options for Meeting the RCP240 Safety and Efficiency Requirements 2.7 Class 6 High Gain Antenna (HGA) terminals are supported that have the capability to fail-over to and voice services on Classic Aero. The E-LGA terminal is an enhanced version of the Inmarsat SB200 terminal currently in operation, with increased coverage and performance, while maintaining the very small antenna profile, low equipment weight and low cost characteristics of the existing SB200. In addition to the commercial services currently provided by SwiftBroadband to the aircraft cabin, all the SwiftBroadband Oceanic Safety aircraft terminals will be able to provide the following safety services: FANS/ data; 2 voice channels to the cockpit; Prioritised IP data to the cockpit; Aircraft position reporting. 2.8 The Inmarsat avionics manufacturing partnership and airframers have expressed their support in providing the safety service capability across this product set. Terminal modifications are underway and programme plans are being agreed with manufacturers. 2.9 SwiftBroadband Oceanic Safety System Description 2.10 SwiftBroadband uses the Inmarsat I4 satellites and Inmarsat s Broadband Global Area Network (BGAN). The SwiftBroadband Oceanic Safety high level architecture is shown in Figure 2. As discussed, a SwiftBroadband Safety terminal may operate over SwiftBroadband only, or (as envisioned for future Class 6 terminals) may include a Classic Aero modem to allow it to fall back to operation over Classic Aero in the event of temporary SwiftBroadband service unavailability, enabling the terminal to confidently perform to the 99.99% availability level required for 30/30 operations. Figure 2 illustrates at high level the fallback mechanism to Classic over I4, and for the time that the I3 satellites remain available, secondary fallback to Classic over I3.

15 ACP-WGWM-19/WP-2 4 Voice + Aero GES Classic Aero Service Air Traffic Service Providers Classic Aero I3 Ground Segment I3 Satellite Constellation Fallback to Classic / I3 Airline AOC Centres Air Traffic Service Providers Airline AOC Centres DP 1... DP n Inmarsat DCN and DP, SP Networks + Position Reports Prioritised IP EFB IP Standard IP Ground to Air Voice PSTN Voice + Ground Gateway (AGGW) VoIP Server Classic Aero I4 Ground Segment CN Air to Ground Voice Aero GES SGSN GGSN MSC RAN BGAN Ground Segment Fallback to Classic / I4 Normal Operation Over SBB I4 Satellite Constellation SB Safety Service / BGAN Classic Aero Modem Antenna SBB Modem PS Voice SB Safety AES Voice Airborne Gateway (AAGW) VoIP Server Voice Prioritised IP EFB IP Standard IP Comms Management Unit Audio Management System New Prioritised IP ATS/AOC Apps Electronic Flight Bag Passenger Cabin Connectivity Figure 2: SwiftBroadband Oceanic Safety High-Level Architecture 2.11 To enable support for safety services over SwiftBroadband, changes are being made to the BGAN ground infrastructure and to the existing aircraft terminals. These changes will permit FANS/ messages to be sent at high priority over the BGAN network, and will enable the prioritisation of cockpit voice and data over other communications traffic to the aircraft e.g. communications that may be provided to the aircraft cabin To use SwiftBroadband Oceanic Safety services, the Satellite Data Unit (SDU) on the aircraft will be updated to incorporate an Air Gateway (shown on the right of Figure 2) and appropriate interfaces to the cockpit avionics. The and voice interfaces will be the same as they are for Classic Aero, thus minimising the required changes on the aircraft The system architecture will also make use of a new Ground Gateway (AGGW) (shown on the left of Figure 2) that is currently being installed at the BGAN satellite access station sites in order to route data traffic between the aircraft and Air Traffic Service Providers (ATSPs) and Airline Operational Control (AOC) centres on the ground SwiftBroadband Safety Services Benefits to both Airline operators and ANSPs 2.15 SB200 Class 4 (E-LGA) Terminal 2.16 Inmarsat s SwiftBroadband Class 6 and 7 user terminals primarily address the needs of the larger air transport, business aviation and government users. There is also significant interest in smaller, lighter and lower cost antenna/avionics packages, where only one 200 khz channel is required, to

16 5 ACP-WGW-19/WP-01 bring satellite communications to mid-sized air-transport and business aircraft and even General Aviation (GA) To meet this demand, Inmarsat has introduced the SB200 Class 4 Enhanced Low Gain Antenna SwiftBroadband Safety product, as an evolution of the successful SB200 Class 15 terminal. In addition to supporting all the SwiftBroadband safety services, the Class 4 terminal incorporates a number of product enhancements, the main one being improved coverage down to 5 o satellite elevation angle, which aligns to the coverage of the existing Inmarsat products End User Service Benefits 2.19 The SwiftBroadband safety product line will offer aircraft operators a full range of options, from the fully-functional Class 6 with Classic fallback through to the smaller, lighter, cheaper terminal options where one channel only is needed. The wide range of safety product options will permit more aircraft to fit for FANS/ operation and make use of satcom voice In addition, Inmarsat believes that the end-user prices for messaging on SwiftBroadband can be delivered at rates at least one third lower than the equivalent tariffs on our Classic aero service ANSPs will be able to consider new concepts of operation for aircraft equipped with the SBB/Classic product targeting the RCP240 communications performance The inclusion of Prioritised IP connectivity to the cockpit offers the opportunity to introduce new AOC and, in future, ATS applications, and will permit higher bandwidth applications to be developed to support services including meteorological data download, aircraft performance monitoring, and Electronic Flight Bag update. Better use of spectrum Higher throughput for Data Link apps Maintains RCP performance Increased Efficiency Future Proof Extends Safety to I-4 for cockpit services Allows end-users to adopt new features, otherwise not available on Classic Aero Cost Savings Do More with Less Savings on usage costs Significant savings on avionics 2 x voice plus 1 x data in one channel Lower Channel Powers = Smaller Equipment Figure 3: SwiftBroadband Oceanic Safety Benefits 2.23 It will be possible to have the SwiftBroadband Safety capability available for validation trials in a relatively short timeframe due to the fact that ground and avionics interfaces are maintained to the maximum possible extent; thus the full benefits of satcom voice, FANS/ messaging and always-on IP communications can be brought rapidly to the aviation community.

17 ACP-WGWM-19/WP Programme Timeline 2.25 Inmarsat s implementation timescale for SwiftBroadband Safety is illustrated in Figure 4. SB Safety Network Service Available SB- S Network Implementation SDD CN SB Safety FANS Evaluation (Flight Trials) Test Terminal Availability SB Safety Full Operational Service (I4 network) Target Type Cert. & ICAO FANS Approval H1-12 H2-12 H1-13 H2-13 H1-14 H2-14 H1-15 H2-15 H1-16 Figure 4: Inmarsat Aero and SwiftBroadband Oceanic Safety Services Timeline Notes: Dates subject to change at Inmarsat s discretion 2.26 The proposed key target milestones of the SwiftBroadband Safety programme are given in Table 1. Description Date Ground Gateway Final Acceptance Feb/Mar 2013 End-to-end Lab Tests Complete Mar/Apr 2013 Terminals Become Available for Flight Test May 2013 Mar 2014 Initial Flight Tests Complete Q Start of FANS Evaluation Q FANS Evaluation Complete Q Table 1: Programme Milestones 2.27 Inmarsat and its partners are currently working to build trials partnerships for the validation flight trials beginning in Q Inmarsat and its communication service providers intend to present the plans for trials and validation into the FAA PARC and ICAO regional datalink groups RTCA and ICAO Standards Development H2-16 H1-17 H2-17 H1-18 H Inmarsat and its manufacturer and communication service provider partners began the process of developing Minimum Aviation System Performance Standards (MASPS) and Minimum Operational Performance (MOPS) for SwiftBroadband Safety services in January 2009, within the RTCA SC-222 working group. The ICAO GOLD RCP methodology has been used as a baseline for the standards development. While the MOPS development is still ongoing, the MASPS is now in a mature draft form and will be of significant use in the development of the appropriate WG-M ICAO Manual for SwiftBroadband Safety. Inmarsat is additionally standardizing the BGAN system within the European Telecommunications Standards Institute (ETSI). 3. ACTION BY THE MEETING 3.1 The ACP WGM is invited to note the information provided in this paper.