ANTI-COLLISION METHOD AND APPARATUS CONSIDERING P2P COMMUNICATION BETWEEN NFC DEVICES IN ENVIRONMENT WHERE NFC DEICE AND RFID SYSTEM COEXIST

摘要

The present invention discloses an anti-collision method of a first NFC device in an environment where a radio frequency identification (RFID) system and a near field communication (NFC) device coexist. The method comprises the following steps: checking whether a wireless channel is currently in use in a first mode; switching to a second mode in which a message of the RFID system can be received, when the wireless channel is currently in use; receiving a query message from an RFID reader; and transmitting a response message in response to the query message, wherein the response message includes information indicating that the response message has been transmitted from the NFC device.;COPYRIGHT KIPO 2016