Patent ID: 8155094

Claim:
A method for transmitting data from a transmitting end to a final receiving end through a transfer route set of multiple data transmit/receive apparatuses identified as one of a next, next +1 to next +n transmit/receive apparatuses provided in a Wireless Sensor Network (WSN), the method comprising the steps of: (a) performing temporary storage of data frame by a source (departure) transmit/receive apparatus for transmission to a requestor in response to receiving a request to transmit data; (b) transmitting data to a next transit data transmit/receive apparatus of the multiple data transmit/receive apparatuses which is set as a transfer route and simultaneously requesting command for forwarding the data to a next +1 transit data transmit/receive apparatus on a next route; and (c) deleting the temporarily stored data frame upon one of: confirming delivery of the data to the next data transmit/receive apparatus set as the transfer route and after a predetermined time interval elapses after the data is transmitted to the next transit data transmit/receive apparatus set as the transfer route; and confirming receipt of the data frame being delivered to the final receiving end, wherein the final receiving end transmits a final transfer ACK to the source data transmit/receive apparatus from which the data frame is transmitted without temporarily storing the data frame, said final transfer ACK operating as the first ACK in an immediately prior node.