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GPS + mobile phones, connecting services to location/presence

GPS + mobile phones, connecting services to location/presence. Sune Jakobsson, Research manager, Telenor R&D 14 January 2009. Outline. GPS location GSM location Current terminals Examples Challenges Issues. GPS location. Satellites in the sky Tall buildings Indoors Multipath problems

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GPS + mobile phones, connecting services to location/presence

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

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

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

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

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

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

  7. Presence lowers communication barriers

  8. Carpooling

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

  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. 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. Thank you!

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