Patent ID: 7072697
Filing Date: 2006-07-04
Classification: H04W,Y02D

Abstract:
1. Method for transponder aided wake-up and connection set-up in a low power radio communication device comprising: detecting a wake up event through a radio frequency sensor interface of said low power radio device, putting said radio device into an operative state including powering a radio frequency communication interface in response to detection of said wake up event, transmitting at least one advertising message via the radio frequency communication interface, determining whether a response to said at least one advertising message is received through the radio frequency communication interface; and putting said low power radio device into a passive operation mode for a predetermined period of time, in the passive operation mode including shutting down the radio frequency communication interface, if it is determined that no response to said at least one transmitted advertising message is received, and ignoring subsequent wake up events detected during said predetermined period of time of passive operation mode so as to avoid using power to put said radio device into said operative state to transmit another advertising message via the radio frequency communication interface during said predetermined period of time of passive mode operation.