Evolution to Wireless Cabin Networks

Transcript Evolution to Wireless Cabin Networks

Evolution to Wireless Cabin Networks

Hasse Sinivaara Project Manager, IP Mobility Networks Nokia Networks [email protected]

1 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi

Rationales

• • • • Passenger carried terminal driven business-model End-to-End system that has same entities than any known/used service in "ground based lifestyle" • => Cabin Wireless is not only "A Terminal" • => Cabin Wireless is not only "Internet, E-mail, Content..." • • => Cabin Wireless is also Global Roaming, Secure Authentication, Billing (Comfortability) => Cabin Wireless requires a connection to ground "Signalling, that carries roaming,authentication & billing information per user" Wireless Technology evolution within next 5 years EMI entities in cabin (RTCA DO-160D) • New certification process = Educational aspect for authorities 2 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi

Wireless Technologies

Data Rate for Datacommunication

54 Mb/s H/2 802.11a

MMAC @ 5,15-5,875GHz depending on geographic region 11 Mb/s 2 Mb/s 1 Mb/s 802.11b

DS HS 802.11b DS HS (5.5 Mb/s mode) 802.11 DS & FH HomeRF BT 10m 30m 60m 3 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi @2,4GHz ISM band 100m UMTS (WCDMA FDD/TDD in Europe/Asia/Japan/Korea) @1,9-2,2GHz CDMA2000(US)) @ 1,9 GHz 200m > 400m

Wireless Technologies

Voice Communication, "Telecommunication"

• • Voice communication possibilities • Mobile phones through E1=Circuit switched mode or IP=packet switched mode • • • • • E1 requires Inmarsat, IP could work through IFN, Connexion, AirTV… • Inmarsat have limited capacity for multiple calls • • IP based calls are sensitive for delays • QoS with simultaneous voice calls/data transfer is not trivial to achieve Co-existence of E1 <=> IP based services • Co-existence of HW infrastructure possiblity ??

Possible voivce communication technologies • GSM (EMI dependent, transmit power effects) Bluetooth (EMI dependent, transmit power/ processing noises) UMTS/WCDMA (EMI dependent, transmit power effect smaller) WLAN (EMI dependent, transmit power effects) HiperLAN / IEEE802.11a (transmit power effects) 4 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi

EMI & Susceptibility

• RTCA DO-160D defines only limits for EMI( ElectroMagnetic Interference) and Susceptibility limits for individual elements • Wireless terminals are transmitting signals within their operating frequency, RTCA DO-160D DOES NOT define the limit for intented transmissions= "signal" 1.

All terminal types has to be separately measured in un-echoic chamber according RTCA DO-160D (EMI & Susceptibility) 2.

Terminals/Systems has to be measured in Cabin w/ avionics running, Flight test has to be performed (all airplane types separately) Aviation Authorities FAA/JAA/CAA has to be "educated" about properties of Wireless Technologies New certification process has to be created, after real life tests performed 5 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi

Potential Roadmap for Cabin Wireless

for Passenger Communication

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Cabin EMI test Flight Test?

Reports Proposals for future development

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GSM 900/1800MHz Wireless LAN 11Mbit (Future 22Mb) Bluetooth 1 Mbit

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WCDMA Development into cabin+ off-board satcom evolution

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WLAN Based system, public access zones in hot spots (airports, hotels…)

Evolution to Wireless Cabin Networks

Transcript Evolution to Wireless Cabin Networks