Patent ID: 7548553

Claim:
A method of performing a data exchange over a wireless communication channel between a destination device and a sending device, the method comprising: waiting, by the sending device, a period of time that is at least as long as a predetermined time period and detecting no communication on the wireless communication channel throughout the period of time, the predetermined time period being at least the maximum expected time span between transmissions from the destination device to a device communicating with the destination device; after said detecting no communication on the wireless communication channel throughout the period of time, attempting, by the sending device, to initiate communication with the destination device; and if said attempt to initiate communication with the destination device proves successful, then: transmitting, by the sending device, a series of packets to the destination device; and after said transmitting, receiving a packet from the destination device, where said received packet indicates that the destination device successfully received the transmitted series of packets.