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WAEA Internet Working Group On-board infrastructure ad hoc group Revised by Rolf Goedecke August 18, 2000. Background. Growing Airline/Passenger demand for information and communication services on board an A/c Allow competition based on standardized platforms

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Slide1 l.jpg

WAEA Internet Working Group

On-board infrastructure

ad hoc group

Revised by Rolf Goedecke

August 18, 2000


Background l.jpg
Background

  • Growing Airline/Passenger demand for information and communication services on board an A/c

  • Allow competition based on standardized platforms

  • Services including in-flight email, Intranet/Internet Web content

  • Technology enablers are available or will be available soon

  • Preparation of a common system architecture capable of supporting multiple applications


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On-board infrastructure generic block diagram: basis for discussion

Required a/c infrastructure to allow new functions, such as

- crew e-mail,

- crew airline intranet access,

- passenger access to intranet,

- passenger access to e-mail...

- NSU ( Network Server Unit, host for A/c intranet pages, e-mail proxy... )- Gatelink ( Wireless a/c – to - ground-network communication link in near airport on-ground terminal environment )- Cabin W-LAN ( wireless link inside the cabin between NSU and e.g. laptops, Credit card readers ... )- Interfaces to Cabin equipment and Satcom


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Component Overview discussion

High Speed Data Link

Satcom

Cabin W-LAN

Gatelink

CTU

CDS

NSU

SWITCH


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NSU discussion

ARINC 763

MIU

CWLU

ARINC 763

TWLU

ARINC 763

SDU

ARINC 741

High speed

SAT

receiver

A429,

Data 3

10bT

10bT

100bT

10bT

Printer,

Data loader,

Cabin/Cockpit port,

etc.

100bT

100bT

Ethernet switch

100bT

E1

E1

On-board components

CTU

ARINC 746

PED

Connectivity

CDS

ARINC 628

Off-board infrastructure

E1

PED Connectivity


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Player discussion

  • Cabin Distribution System (CDS)

    • Matsushita Avionics System Corp. (no web site)

    • Rockwell Collins (www.collins.rockwell.com)

    • Thomson CSF Sextant Inflight Systems (www.thomson-csf.com and www.sextant-ifs.com)

    • KID-Systeme (www.kid-systeme.com)

    • Primex Aerospace (www.red.prmx.com)

  • Cabin Telecommunication Unit (CTU)

    • Matsushita Avionics System Corp. (no web site)

    • BAE Systems (www.baesystems.com)

    • AT&T (www.att.com)

  • Network Server Unit (NSU), Cabin/Terminal Wireless LAN

    • Honeywell (www.cas.honeywell.com)

    • Rockwell Collins (www.collins.rockwell.com)

    • Miltope (OEM) (www.miltope.com)


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Player discussion

  • Ethernet Switch Unit (ESU)

    • Honeywell (www.cas.honeywell.com)

    • Rockwell Collins ? (www.collins.rockwell.com)

    • Teldix ? (www.teldix.com)

  • Satellite Data Unit (SDU)

    • Honeywell (www.cas.honeywell.com)

    • Rockwell Collins (www.collins.rockwell.com)

  • Software/Applications

    • Honeywell (www.cas.honeywell.com)

    • Rockwell Collins (www.collins.rockwell.com)

    • Tenzing (www.tenzing.com)

  • General Information

    • Wireless Ethernet (www.wirelessethernet.org)

    • ARINC Specifications (www.arinc.com)


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Considerations discussion

  • High-speed communication und data exchange via wired and wireless LAN

  • Server technology as platforms for several applications

  • Allow for High-Speed Satellite Communication

  • Modular system architecture suitable for S/A and L/R aircraft

  • Possibility for easy extension in a modular way


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Functionalities discussion

  • The proposed system functionality may include as an example,

  • but not be limited to, the following:

  • E-mail services

  • Intranet Access

  • Internet Access

  • Airline specific access to the Airline intranet (such as Booking Systems, Airline Logistics, Mobile Credit Card Reader, Flight Connection Information etc.)


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Concept discussion

  • The concept for the On-Board Infrastructure

  • is a system consisting of the following major parts:

  • Network Server Unit (NSU)

  • Terminal Wireless LAN

  • Cabin Wireless LAN

  • Ethernet Switch Unit

  • High-Speed Satellite Data Transceiver

  • Interfaces to communication Systems

  • Interfaces to other systems


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Network Server Unit (NSU) discussion

  • Closely linked with the highly customized cabin and passenger-related functions (e.g. E-Mail and Intranet/Internet, cabin crew applications)

  • Provides system processing and network communication services for customized S/W applications

  • Form, fit and functions of NSU shall be closely linked to the architecture of the In-Flight Entertainment System

  • (may be according to ARINC 763)

  • Form factor : 4 / 6 MCU

  • To be installed in E-Bay or close to the IFE system


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Terminal Wireless LAN discussion

  • The Terminal Wireless LAN is used to bridge a wireless connection between the on-board LAN and a ground-based LAN typically at an airport

  • The Terminal Wireless LAN includes the Terminal Wireless LAN Unit and the Antenna

  • Potential applications are Software Updates (Core, News, Web Pages) and access to aircraft status data

  • Interfaces to the NSU

  • Based on ARINC 763

  • Form factor according to ARINC 763, location is fuselage (external antenna)


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Cabin Wireless LAN discussion

  • The Cabin Wireless LAN provides a wireless network connection between devices within the aircraft structure and those systems connected to the wired Ethernet LAN

  • The Cabin Wireless LAN includes the Cabin Wireless LAN Unit and the Antenna(s)

  • Potential applications are crew access to electronic docs and maintenance data, wireless credit card reader, …

  • Interfaces to the NSU

  • Based on ARINC 763

  • Form factor according to ARINC 763, location is aircraft dependant on measurement/coverage tests


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Ethernet Switch Unit discussion

  • The Ethernet Switch Unit provides a wired network connection between the connected systems based on IEEE 802.3 Ethernet

  • Form factor : 2 MCU (tbc), location may be E-Bay


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High-Speed Satellite System discussion

  • The High-Speed Satellite System provides the broadband communication link between the aircraft and the ground

  • via geo-stationary / orbiting satellites

  • Access to satellite-based high-speed data communications

  • Consists of antenna(s) and the transceiver(s) part

  • Items to investigate :

  • What antenna(s) types and what reception system may be used ? With what dimensions and weights ?

  • Where might the antenna(s) be installed on the a/c ?

  • (at top of the fuselage or within the vertical stabiliser structure)


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Relevant Standards and Items discussion

  • IEEE 802.3 Ethernet 10BaseT and 100BaseT

  • (10 Mbps and100 Mbps)

  • Wireless LAN based on IEEE 802.11 / 802.11b

  • ARINC 628 (Cabin Equipment Interfaces)

  • ARINC 664 (Aircraft Data Network)

  • ARINC 746 (Cabin Communication Systems)

  • ARINC 761 (Aviation Satellite Communications System)

  • ARINC 763 (Network Server System)

  • Cable, Connectors and Interface Connectors for production breaks (Ethernet)

  • Network Technology, Operating Systems and Partitioning

  • (S/W and H/W)

  • Firewalls and Virus Protection


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Ethernet performance IEEE 802.3 discussion

  • Ethernet 10BaseT :

    • Netto bit rate approx. 7 Mbit/sec or 900 KByte/sec

    • Twisted pair cable

  • Ethernet 100BaseT :

    • Netto bit rate approx. 70 Mbit/sec or 9 MByte/sec

    • Quad cable (tbc)


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Ethernet performance IEEE 802.11 and 11b discussion

  • Wireless Ethernet IEEE 802.11 :

    • Frequency hopping

      • Bit rate 2Mbit/sec

      • Netto bit rate approx. 1 Mbit/sec or 125 KByte/sec

    • Direct Sequence :

      • Bit rate 2Mbit/sec

      • Netto bit rate approx. 1 Mbit/sec or 125 Kbyte/sec

  • Wireless Ethernet IEEE 802.11b :

    • Direct Sequence :

      • Bit rate 11Mbit/sec

      • Netto bit rate approx. 5,5 Mbit/sec or 700 Kbyte/sec


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