IP Services over Bluetooth:Leading the Way

to a New Mobility

Markus AlbrechtMatthias Frank

Peter MartiniMarkus Schetelig

Asko VilavaaraAndre Wenzel

presented by Metin Tekkalmaz

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

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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

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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

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

Mobile Node

Correspondent Host

HomeAgent

ForeignAgent

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IP and Mobility: Celluar IP Solution for

mobile hosts in a LAN

Consists of Gateway Routers Base Stations Mobile Hosts

BS BS

GW

BS BS

INTERNET

MH

Cellular IP Access Network

Base station

Gateway Router

Mobile Host

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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

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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.

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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

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Protocol Concepts for BLUEPAC IP- Reference Network Architecture

BLUEPAC LAN Gateway

(GW) BT Device BLUEPAC

Base Station (BBS)

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Protocol Concepts for BLUEPAC IP- Network w/ Functional Elements

Application Server & BLUEPAC Agent

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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

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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

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Protocol Concepts for BLUEPAC IP- IP Assignment & Handoffs

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Conclusion Has nothing new Just combines existing ideas and

protocols Not an in-depth study