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Evolution to Wireless Cabin Networks

Evolution to Wireless Cabin Networks. Hasse Sinivaara Project Manager, IP Mobility Networks Nokia Networks hasse.sinivaara@nokia.com. Rationales. Passenger carried terminal driven business-model

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Evolution to Wireless Cabin Networks

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  1. Evolution to Wireless Cabin Networks Hasse Sinivaara Project Manager, IP Mobility Networks Nokia Networks hasse.sinivaara@nokia.com

  2. 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

  3. 802.11b DS HS 802.11b DS HS (5.5 Mb/s mode) Wireless TechnologiesData Rate for Datacommunication 54 Mb/s H/2 802.11a MMAC @ 5,15-5,875GHz depending on geographic region 11 Mb/s @2,4GHz ISM band 2 Mb/s 802.11 DS & FH UMTS (WCDMA FDD/TDD in Europe/Asia/Japan/Korea) @1,9-2,2GHz CDMA2000(US)) @ 1,9 GHz 1 Mb/s HomeRF BT 10m 30m 60m 100m 200m > 400m

  4. Wireless TechnologiesVoice 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)

  5. 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) 3. Aviation Authorities FAA/JAA/CAA has to be "educated" about properties of Wireless Technologies 4. New certification process has to be created, after real life tests performed

  6. Potential Roadmap for Cabin Wirelessfor Passenger Communication GSM 900/1800MHz Cabin EMI test Flight Test? Reports Proposals for future development Wireless LAN 11Mbit (Future 22Mb) Bluetooth 1 Mbit WCDMA Development into cabin+ off-board satcom evolution H2 / IEEE802.11a WLAN Based system, public access zones in hot spots (airports, hotels…) 2002 2000 2003 2004 2001

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