Telecom Italia S.p.a.

Cristina Fra′

Massimo Valla

A method for providing a context-based service in a communication network includes: at a context server cooperating with the network, receiving a query generated from a service application, indicating that the service application needs to receive from the context server a set of context information when a query condition is fulfilled; at the context server, generating an update rule indicating that a terminal has to transmit the context information to the context server when an update condition is fulfilled; transmitting the update rule from the context server to the terminal; detecting the context information and transmitting them to the terminal; at the terminal, receiving the context information and transmitting them to the context server when the update condition is fulfilled; and at the context server, forwarding the context information to the service application, thus allowing the service application to implement the context-based service.

Method and communication system for providing a context-based communication service

Providing a context-based service to a terminal, including: a) receiving a query from a service application, the query indicating that a context server should perform an action when a query condition is fulfilled, the query condition referring to one or more attributes of derived context information indicative of a context of the terminal; b) generating a query evaluation trigger indicating that the query condition should be evaluated; c) identifying raw context information to derive the derived context information; d) generating a calculation trigger indicating that the derived context information should be calculated when the raw context information is updated; e) receiving an update of the raw context information and, according to the calculation trigger, calculating a new value of the derived context information; and f) according to the query evaluation trigger, evaluating the query condition by using the new value and, if the query condition is fulfilled, performing the action.

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Turin, Italy

Cristina Fra′