Inmarsat - 4 Inmarsat -3 Inmarsat - 2 Gary Colledge Manager Aeronautical Data & Safety Services Eurocontrol NexSat Steering Group - Brussels June 2004

Inmarsat - 4Inmarsat - 4

Inmarsat -3Inmarsat -3

Inmarsat - 2Inmarsat - 2

Gary ColledgeManager Aeronautical Data & Safety Services

Eurocontrol NexSat Steering Group - Brussels June 2004

Next Generation SATCOMNext Generation SATCOM

andandAero-BGAN for Air TransportAero-BGAN for Air Transport

Contents

• Update on October 03 presentation• BGAN Extension & Evolution • Aero-BGAN & Safety Services• NexSat HLMR and Satcom CONOPS• Potential features enabling new Safety Services


Inmarsat’s Next Generation satellites and SARPs compliant communications

– Inmarsat-4 will support existing Aeronautical safety services

• Inmarsat’s Public Service Agreement (PSA) commitment to ICAO (and IMO)

– For the near term, data and voice safety services will operate via Inmarsat H/H+, I and L

– Enhanced capabilities using the new Inmarsat-4 Satellites and new terrestrial infrastructure


Inmarsat’s Next Generation satellites – new capabilities

– Referred to as Aero-BGAN (Broadband Global Area Network) working title

• Designed to operate in conjunction with existing safety services (voice and data) and Swift 64.

• Will provide data rates up to 432kbps per channel.• Will provide both ‘Circuit Switched’ and “Always on” TCP/IP

data. • Supported through High, Intermediate and Low gain

antennas.• Also provides the opportunity for development of

significantly smaller terminals, and leads to lower priced services.

– Working with 4 avionics manufacturersEurocontrol NexSat Steering Group - Brussels June 2004

Inmarsat-4 Satellite•User Link :L Band• Global, Regional and Narrow spot beams•Feeder Link :C Band

•Spacecraft Power :12 kW•Launch Mass :6 Tons•Solar Array Span :48 m

•Prime Contractor: Astrium

•Current planned Launch Dates:•F1 (64E Indian Ocean)– 4th Qtr 2004•F2 (53W Atlantic Ocean)– 1st Half 2005•F3 ground spare


Inmarsat-4 SatelliteLaunch Vehicles:• ILS Atlas 5• Sealaunch

Current planned BGAN Service commencement

•Mid 2005•Aero services expected 2006

Inmarsat 4 integration and environmental testing in Toulouse


Inmarsat-4 Composite Coverage Map

Inmarsat 3


BGAN – Two Networks in One


BGAN Services• CS Domain

– Direct Dial Voice– SIM Roaming– Voice Mail Services– Other UMTS Services

• CLI, Call divert, Conf. Calling etc.

– SMS (Two way)– ISDN

• PS Domain– DSL class internet

access– Static and Dynamic IP

addressing– Bandwidth on demand– Two service classes:

• Basic IP Services- UMTS “Background /Interactive class”- Variable data rate

• Premium IP Services- Streaming- Guaranteed bit rate


BGAN Extension & Evolution

• The Aero/Maritime Evolution programme consists of:1) Activity funded as part of BGAN

Extension• Development through to technology validation.

• Aeronautical Directional• Maritime Omni (inc Aero)• Multi-cast

• 50% funded by ESA / 50% by Inmarsat and partners


BGAN Extension & Evolution2) Other activities outside the Extension

project• Commercialisation

– Business Support Systems– Type Approval– Distribution/Sales/Marketing

• Multi-user enhancements• Maritime directional products• Land mobile/vehicular products


I4/BGAN Evolution Studies

BGAN X

Mar & Aero OmniAero Directional

Multicast

ProductEvolution

ServiceEvolution

Mar DirectionalLand Vehicular

Multi-User

Additional

Includes propagation studies, physical layer specifications, proof of concept technology, final Air Interface definition for all product types


Aero-BGAN & Safety Services• Evolution of the expected Aero-BGAN system would be

required for safety services support, which might imply• Planning timeline for pre-operational trials of Aero-BGAN

safety services circa. 2010• Beginning safety service requirements evaluation.

Many questions, not least:– Contingency?– How to achieve priority and pre-emption?– The effect of applying ESARRs– NexSat as part of latter stages of LINK 2000+? Also CASCADE?– ICAO view of digital voice versus circuit mode?

• Inmarsat has made Aero-BGAN technical input to ICAO ACP WGC


NexSat HLMR and Satcom CONOPS

• NexSat HMLR provides good starting point for baseline requirements, but ideally

• A Concept of Operations is required for combined data and voice satcom operation in European region answering such questions as:– What is the voice distribution requirement?– Digitised voice offers new concepts of operation, should

these taken into account?– Which datalink services will the NexSat support?


Potential features enabling new Safety Services

• ‘Make before break’ capability

– Seamless voice and data in designated areas

– Continuity of data delivery

• ‘Always-on’ capability removes previous inherent R, and T channel utilisation issues

• Digitised voice offering– New ways to ensure

‘priority and pre-emption’ service

– Multicast capability– Net radioEurocontrol NexSat Steering Group - Brussels June 2004

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Documents

Inmarsat - 4 Inmarsat -3 Inmarsat - 2 Gary Colledge Manager Aeronautical Data & Safety Services Eurocontrol NexSat Steering Group - Brussels June 2004