Nxp B.v.

Thomas Spiss

Markus Wobak

Abu Syed Firoz Ismail

Described is a method for guiding a user for positioning a first RFID-enabled device relative to a second RFID-enabled device for allowing a robust RFID communication between the two RFID-enabled devices. The method includes placing the first RFID-enabled device to a first position relative to the second RFID-enabled device; receiving, by the first RFID-enabled device, when being located at the first position, a first RFID signal transmitted by the second RFID-enabled device; measuring, by the first RFID-enabled device, a first signal strength of the first RFID signal; placing the first RFID-enabled device to a second position relative to the second RFID-enabled device; receiving, by the first RFID-enabled device, when being located at the second position, a second RFID signal transmitted by the second RFID-enabled device; measuring, by the first RFID-enabled device, a second signal strength of the first RFID signal; determining, based on the first signal strength and on the second signal strength, a movement indication for a movement of the first RFID-enabled device towards a target position, at which there is expected a target RF coupling strength between the two RFID-enabled devices, which is stronger than a first RF coupling strength being associated with the first position and a second RF coupling strength being associated with the second position; and (h) providing the determined movement indication to the user of the first RFID-enabled device. In other embodiments, an RFID communication system and device are provided.

Positioning guidance for RFID devices

In one embodiment, a near field communication (NFC) device is provided, comprising: a communication unit configured to be communicatively coupled to an NFC reader; a processing unit configured to use a plurality of emulated cards for executing one or more applications; a profile determination unit configured to determine a polling profile of said NFC reader, wherein the polling profile represents a sequence of predefined radio frequency (RF) transmission events, and wherein the profile determination unit is configured to determine said polling profile by comparing a detected sequence of RF transmission events with one or more predetermined sequences; a card selection unit configured to select a specific one of said emulated cards for use by the processing unit in dependence on the polling profile determined by the profile determination unit. In another embodiment, a corresponding method of operating an NFC device is conceived. In another embodiment, a computer program is provided for carrying out a method of the kind set forth.

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Sankt Radegund, Austria

Thomas Spiss