1. 1 GPS + mobile phones, connecting services to location/presence Sune Jakobsson, Research manager, Telenor R&D 14 January 2009

2. 2 Outline GPS location GSM location Current terminals Examples Challenges Issues

3. 3 GPS location Satellites in the sky Tall buildings Indoors Multipath problems 15m accuracy 2min cold-start A-GPS

4. 4 Cell-id + Directional antenna GSM location technology Cell-id +TA + Timing advance Accuracy 200m – 35 km

5. 5 Current terminals GPS built-in E911 requirement Geo-tagging of pictures Geo-caching of blogs –Twinkle

6. 6 User trends User generated content User generated services Mash-ups Let’s play!

7. 7 Presence lowers communication barriers

8. 8 Carpooling

9. 9 Challenges Inaccuracy Easy to jam Using alternative means for location –http://www.opencellid.orghttp://www.opencellid.org Personal invasion Misuse of location Regulation

10. 10 Commercial ideas Provide “location/presence” to 3rd party developers On company level –Control buildings, heat, lights, guards, alarms, etc. –Switchboards, call to closest employee –Mobile office, team work, rescue –Instant messaging with presence information On individual level –Status for family and friends: In office, On travel, –Instant messaging with presence information –Call routing

11. 11 Issues regarding location/presence When is privacy invaded? What level of automation? What not to combine? How much detail to use? How much history to use? How to control sharing (reselling)?

12. 12 Thank you!