Browse Prior Art Database

Location Trigger Facility for Personal Communication Devices on a Wireless Network

IP.com Disclosure Number: IPCOM000018575D
Original Publication Date: 2003-Jul-24
Included in the Prior Art Database: 2003-Jul-24
Document File: 3 page(s) / 55K

Publishing Venue

IBM

Abstract

The present idea relates to a location trigger facility for personal communication devices on a wireless network. In most cellular telecommunication systems the mobile devices is self-locating, i.e. the devices can pin-point it's location more precisely and more easily than the network infrastructure itself. As a matter of fact, in cellular systems such as Europe's GSM or the US CDMA handsets are responsible for continuously monitoring their location in the network, and to initiate handover as they migrate between cells. The present idea is based on this information to trigger location based services.

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Location Trigger Facility for Personal Communication Devices on a Wireless Network

   As more information is becoming available on-line, i.e. through computer-based communication systems, users are becoming increasingly accustomed to accessing data sources at the point of need, i.e. to facility mobile communication technologies and mobile handheld computing devices to retrieve data from data sources on demand wherever and whenever they desire to do so. One interesting variant of such systems is the delivery of such information in a push-fashion, i.e. for a server to anticipate the user's need to view a data record and transmit it to the user's device in an active fashion, rather than (passively) await for the user's request to receive it. Events that may trigger such push actions may be related to the data item itself (such as a delay notification for a flight to a passenger), or it may be related to the user's current state, such as the user's location.

While the location information for users is often available in principle, practical problems currently limit the spread of such "location aware applications". Two limiting factors are here the availability of the data itself (most location information is only available on-demand, and tracking a user continuously would consume too much network capacity and bandwidth), and privacy concerns regarding the widespread availability of location information for users and their lack of control over it.

In most cellular telecommunication systems the mobile devices is self-locating, i.e. the devices can pin-point it's location more precisely and more easily than the network infrastructure itself. As a matter of fact, in cellular systems such as Europe's GSM or the US CDMA handsets are responsible for continuously monitoring their location in the network, and to initiate handover as they migrate between cells.

The present idea is based on this information to trigger location based services. It consists of several components:

a location sensor that detects the current position of the mobile. As pointed out above, this function is already readily available in all modern cellular handsets. a location register (data store) that contains a list of "locations of interest", and their corresponding trigger events. In a sample embodiment, the locations of interest may be encoded in terms of their geographical coordinates, or simply the cell ID information of the cells that serve that geographical area. They may further be enhanced by including the time of day when those areas are in fact areas of interest, etc (for example, a shopping mall during shopping hours). The trigger event may be encoded as a network URL. a location engine that reads location sensing events from the location sensors and triggers and event if the location of the mobile device has changed. an trigger engine that compares the location detected by the location sensor and reported by the location engine with the locations stored in the...