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Inmarsat Aeronautical System Status Damian Harrington Aeronautical Systems Engineer 30 October 2003.

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Presentation on theme: "Inmarsat Aeronautical System Status Damian Harrington Aeronautical Systems Engineer 30 October 2003."— Presentation transcript:

1 Inmarsat Aeronautical System Status Damian Harrington Aeronautical Systems Engineer 30 October 2003

2 Inmarsat Aeronautical Classic Services Overview Aero-H Aero-H Aero-H+/I (SARPs Compliant) Aero L Aero L Swift64 Aeronautical BGAN

3 Classic Services Overview AES GES PSTN X.25 (DATA-3) ACARS (DATA-2) Cabin and Cockpit voice and data services with full P 3 capability

4 Inmarsat Aero-H Global Beam Only 21K Voice PC-data and Fax Packet Data 600 – bps channel rates Shared channels

5 Inmarsat Aero-I/H+ Aero-I (Intermediate Gain Antenna) Spot Beam Operation 8.4K Voice PC-data and Fax Global Beam Operation Packet Data at 600 – 4800 bps Aero-H+ (High Gain Antenna) Global & Spot Beam Operation 8.4K Voice PC-data and Fax Packet Data at 600 to bps

6 Inmarsat-3 Spotbeam Coverage Area

7 Inmarsat Aero-L Global beam only Low Gain antenna – Omnidirectional Data 600 and 1200 bps Supported by all GESs

8 Inmarsat Swift64 Uses existing High Gain Antenna Has two services Swift64 ISDN Service Swift64 MPD Service Uses existing Inmarsat ISDN and MPDS infrastructure on INM-3 spotbeams Swift64 ISDN Swift64 MPDS

9 Swift64 ISDN Service AES NCS LES ISDN

10 Swift64 ISDN Service Circuit mode service One user per channel Data throughput is 64 kbits/s Charged per time unit

11 Swift64 MPD Service AES NCS Internet SBS Internet HLES User

12 Packet mode service. Multiple users per channel. User has a portion of the 64 kbits/s channel at any one time. Charged per kbit not connection time. Swift64 MPD Service

13 Aeronautical BGAN Swift64 Inmarsat-4 satellites will provide new service opportunities in all aeronautical market segments: Increase data rates for existing satcoms installations. New data services for medium/ short-haul aircraft and helicopters.

14 Space Segment – INM 4 User Link : L Band Feeder Link : C Band Orbital Positions F1: approx. 65 E F2: approx. 54 W F3: TBD (if 3 successful launches) Prime Contractor : Astrium 10 year lifetime (minimum) Launchers Atlas 5, Ariane 5 Has a LxL capability

15 Satellite Launch Configuration Spacecraft Power: 12 kW Launch Mass : 6 Tons Solar Array Span : m Overall Dimensions: 6.9 m Z axis, 2.9 m X axis, 2.35 m Y axis EUROSTAR E3000 Structure comprises: Service Module (SM) Communications Module (CM)

16 Satellite Overall Coverage Area

17 Spot Beam Coverage 54 West Narrow Spot Beams Wide Spot Beams

18 Satellite Overall Coverage Area

19 Ground Segment BGAN DCN Resource & Network Management Satellite Orbital Data; TT&C I4 Satellite (F2 ~ 54W)(F1 ~ 65E) BGAN DCN Other PLMNs PDN PSTN ISDN PoP Inmarsat BOC Inmarsat NOC Inmarsat SCC Billing Data, Fault Management, Customer care I4 Satellite (F2 ~ 54W)(F1 ~ 65E) BGAN SAS 1BGAN SAS 2 RF/IF CN RAN 1RAN 2 RF/IF CN RAN 1RAN 2 L-Band User Links L-Band User Links

20 Based upon a new Inmarsat Air Interface Specification. Defines a range of data rates QPSK and 16 QAM Symbol rates of: 16.8, 33.6, 67.2 and ks/sec Variable rate coding – set of predefined puncturing matrices Coding indicated by U.Ws Change rate per 1 dB in C/No Operating point chosen for a PER of 1 x User data rates up to 492 kbit/sec Adapted for a range of Antenna types (High, Intermediate & Low Gain) Aero BGAN

21 Antenna Types

22 BGAN Deployment Schedule Development Phase CN Integration & Test RAN Integration & Test Pre-I4 Testing I4 F1 Available I4 F2 Available Regional Launch Alpha Testing Testing over I4 Beta Testing Global Launch


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