1. 1 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi Evolution to Wireless Cabin Networks Hasse Sinivaara Project Manager, IP Mobility Networks Nokia Networks hasse.sinivaara@nokia.com

2. 2 © 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

3. 3 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi UMTS (WCDMA FDD/TDD in Europe/Asia/Japan/Korea) @1,9-2,2GHz CDMA2000(US)) @ 1,9 GHz Wireless Technologies Data Rate for Datacommunication H/2 802.11a MMAC 802.11b DS HS 802.11b DS HS (5.5 Mb/s mode) 802.11 DS & FH HomeRF 10m30m60m100m> 400m200m 1 Mb/s 2 Mb/s 54 Mb/s 11 Mb/s BT @ 5,15-5,875GHz depending on geographic region @2,4GHz ISM band

4. 4 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi 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)

5. 5 © 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) 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. 6 © NOKIA Wirelss_cabin_evolution.PPT/ 14.10.2000 / HSi Potential Roadmap for Cabin Wireless for Passenger Communication 2001 2003 2002 2004 2000 Wireless LAN 11Mbit (Future 22Mb) Bluetooth 1 Mbit GSM 900/1800MHz WCDMA H2 / IEEE802.11a Cabin EMI test Flight Test? Reports Proposals for future development WLAN Based system, public access zones in hot spots (airports, hotels…) Development into cabin+ off-board satcom evolution