Patent ID: 8170477

Claim:
A method comprises: receiving a first probe signal from a first transceiver at time t 1 , wherein the first probe signal has a first carrier frequency; receiving a second probe signal from a second transceiver at time t 2 , wherein the second probe signal has a second carrier frequency that is substantially similar to the first carrier frequency; determining a difference between time t 1 and time t 2 ; comparing the difference between time t 1 and time t 2 to a delay threshold; when the difference between time t 1 and time t 2 compares favorably to the delay threshold, receiving a first signal from the first transceiver and receiving a second signal from the second transceiver, and tuning one of the first or second signals to obtain a constructive interference combining the first and second signals; and when the difference between time t 1 and time t 2 compares unfavorably to the delay threshold, determining which of the first or second probe signal was received first and providing the difference to the corresponding first or second transceiver having the probe signal received first, in order to delay transmission from the corresponding first or second transceiver having the probe signal received first by the difference between time t 1 and time t 2 , such that transmissions of the first and second signals from the first and second transceivers combine in a constructive interference upon reception after adjusting for the delay in transmission.