IP Services over Bluetooth: Leading the Way to a New Mobility Markus Albrecht Matthias Frank Peter Martini Markus Schetelig Asko Vilavaara Andre Wenzel presented by Metin Tekkalmaz

2 Outline Introduction IP and Mobility Bluetooth in Public Areas: Scenarios Proposed Concepts Conclusion

3 Introduction BLUEPAC IP (Bluetooth Public Access) Extention of IP for mobility issues in Bluetooth networks Takes IP as a basis Also uses ideas in Mobile IP and Cellular IP No modification on upper layers

4 IP and Mobility Both the identification and location information are handled by the single IP that the host has To support mobility at different extents, following schemes are proposed: Mobile IP Cellular IP

5 IP and Mobility: Mobile IP Mobile Node Home Agent Foreign Agent Home Address Care-of-Address Correspondent Host Tunneling Mobile Node Correspondent Host Home Agent Foreign Agent 4

6 IP and Mobility: Celluar IP Solution for mobile hosts in a LAN Consists of Gateway Routers Base Stations Mobile Hosts BS GW BS INTERNET MH Cellular IP Access Network Base station Gateway Router Mobile Host

7 IP and Mobility: Celluar IP Other key concepts: Beaconing Routing Caches Mapping Timeouts Reconfiguration of caches due to handoffs Specifically designed for highly mobile hosts Can incorporate with Mobile IP

8 Bluetooth in Public Areas: Scenarios Scenarios w/ low user mobility Aeroplanes, trains, hotel rooms etc. Scenarios w/ high user mobility Railway stations, airport terminals Cinemas, opera houses Tours through museums, zoos etc.

9 Protocol Concepts for BLUEPAC IP - General Requirements General requirements to establish a BLUEPAC connection: Connectivity of devices via BT technology, OSI layer 2 Connectivity of (foreign) BT devices in BLUEPAC area, OSI layer 3

10 Protocol Concepts for BLUEPAC IP - Reference Network Architecture BLUEPAC LAN Gateway (GW) BT Device BLUEPAC Base Station (BBS)

11 Protocol Concepts for BLUEPAC IP - Network w/ Functional Elements Application Server & BLUEPAC Agent

12 Protocol Concepts for BLUEPAC IP - IP Issues for a foreign device If foreign device already has an IP Provide registration with HOME Agent Authenticate device if necessary How Mobile IP is integrated? If foreign device has no IP Assign an IP to the device Global vs. Local IP assignment

13 Protocol Concepts for BLUEPAC IP - Handoff Support Based on Celluar IP A routing mechanism regardless of the location within the network Connection should be kept alive when changing base station

14 Protocol Concepts for BLUEPAC IP - IP Assignment & Handoffs

15 Conclusion Has nothing new Just combines existing ideas and protocols Not an in-depth study