Nokia Corporation

Marko Perttilä

Janne Jalkanen

Heikki Huomo

Petri Vesikivi

Marko Vänskä

Ian Nordman

Mikko Tapani Tarkiainen

Sami Ranta

Vesa Jutila

Joakim Granholm

Raimo Malila

A method and system locate a transponder that has an associated identifier and content data, at a location substantially accessible to a user of the mobile terminal. The transponder is activated by the mobile terminal with a wireless signal. In response, the mobile terminal receives at least the identifier and the content data from the activated transponder at the mobile terminal. From the received identifier and/or content data, the method and system select one or more of the stored data items according to one or more criteria.

Method and system for selecting data items for service requests

The invention provides enhancements to service discovery procedures associated with short-range communication in mobile terminals. In particular, the present invention employs a layered service discovery decision-making process that relies on historical information stored in the mobile terminal and mobile terminal analysis of the information associated with tag to make decisions regarding service discovery. As such, the present invention provides efficient service discovery that limits unnecessary connections to external servers and, thereby accelerates the overall service discovery process.

Methods, apparatus and computer program instructions for enhancing service discovery at a mobile terminal

An RFID system includes transponders transmitting or receiving packetized data in standard form in lieu of custom format for applications executable in a mobile device or network. Tag data may be packetized in any of several standard formats. Each format includes a layer to identify packet format. In one embodiment, a tag contains a standard UDP header with a checksum and payload data. The application opens a socket to listen to UDP connections. The device transmits a RF signal activating tags which transmit UDP packets to a RFID reader in the device. The packets are passed to an IP stack which strips away the UDP header and validity of the checksum verified. If verified, the device transmits the payload to an application running in the device or a network, otherwise, the IP stack notifies the tag the transmission failed and requests re-transmissions which are repeated until a successful transmission occurs.

RFID system with packetized data storage in a mobile environment: methods, systems and program products

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Pernaja, Finland

Marko Perttilä