Patent ID: 8456282

Claim:
A method of operating a radio frequency identification (RFID) tag within a radio frequency identification (RFID) communication environment, comprising: providing at least one RFID tag configured to receive periodic first band RF signal interrogator polling signals and configured to transmit second band RF signal response signals in response thereto, the first band being a multiple channel-based frequency band and the second band being a non-channel based frequency band; and repeatedly and alternately performing the following two steps: operating the RFID tag in a timed low power sleep mode for a predefined sleep time during which the RFID tag does not listen for transmitted first band RF signal interrogator polling signals, and then waking the RFID tag to operate in a timed powered up listening mode for a predefined tag listening time without first transmitting from the RFID tag, the RFID tag actively listening for transmitted first band RF signal interrogator polling signals during the listening mode; and wherein the method further comprises further comprising dynamically adjusting the length of the predefined sleep time before again waking the RFID tag to listening mode based upon at least one of the time of receipt of a periodic interrogator polling signal during the listening mode, the non-receipt of a periodic polling signal during the listening mode, or a combination thereof.