Patent ID: 8559404

Claim:
A node comprising: a electronic device and a memory for storing identification related information of the node, said electronic device configured to: receive a first signal, the first signal including information used to align a response signal from the node; randomly generate information within said node and store said randomly generated information in the memory of the node; send the response signal from the node, wherein said response signal conveys the randomly generated information; receive a second signal, wherein a portion of the second signal is derived from the randomly generated information conveyed in the response signal; said second signal enabling sending of a subsequent-response signal that uniquely identifies the node; determine whether the second signal contains information which matches the randomly generated information stored in said memory of the node; send the subsequent-response signal which comprises a packet that includes identification related information of the node, said subsequent-response signal from the node being sent only if the portion of the second signal matches the randomly generated information that is stored in the node; wherein the first signal, the response signal, the second signal and the subsequent-response signal occur on a common frequency channel; and wherein the node is capable of receiving subsequent information relating to variable frame boundaries.