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Location Dependent Service and Privacy J-Phone East Co., Ltd. Kentaro Meiseki Atsushi Wada Hiroshi Ohta.

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Presentation on theme: "Location Dependent Service and Privacy J-Phone East Co., Ltd. Kentaro Meiseki Atsushi Wada Hiroshi Ohta."— Presentation transcript:

1 Location Dependent Service and Privacy J-Phone East Co., Ltd. Kentaro Meiseki Atsushi Wada Hiroshi Ohta

2 J-Phone East _ Japanese mobile telephone carrier – NTT DoCoMo, KDDI and J-Phone _ Develop non-voice service –J-Sky Walker ( ) –J-Sky Web (WWW) _ Start J-Sky Station September 2000 –Location Dependent Push Service –Use cell broadcast technology

3 J-Sky “Station” _ Information is sent to handset periodically and stored _ Information can be cell-unique so user can receive location dependent information base stationhandset contents provider

4 “Station” Contents _ news _ weather _ restaurant information _ concert ticket information _ game _ described by HTML subset language _ can access web directly by clicking link

5 How it works _ Use cell broadcasting technology _ Cell-unique information is stored in each cell of a base station _ Push the information and base station’s position data to a user’s handset periodically

6 Current privacy consideration _ Basically information is provided to user “one-way”, so contents provider cannot collect user’s profile _ Contents provider may get user’s location data when user respond to the information –click link or input message from form

7 Future _ Privacy becomes more important, critical issue as we are planning to develop more user specific and interactive service using stored location information _ e.g. –Scheduler –Personalized advertisement –Instant Messaging with Location Information

8 Requirements (general) _ Global privacy consensus _ familiar with XML as we are also interested in XHTML technology _ Simple and compact description _ Less transaction – wireless network is not broadband

9 Requirements (service aspect) _ Easy to view, accept/reject privacy policies from handset _ User unconscious location notification for trusted web site –cache or automatically send user’s preference _ P2P privacy information exchange framework –handset to handset


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