Patent ID: 7821945

Claim:
A method of downloading data in a peer-to-peer service of a wired and wireless integrated network, comprising: downloading the data to a requester node only through wired nodes of a download path between the requester node which requests the data and a holder node which holds the data, the download path comprising a series of nodes through which the holder node downloads the data to the requester node and including both wired and wireless nodes; wherein the downloading of the data comprises: if a first node next to the holder node in the download path is a wireless node, the holder node transmitting a first information message including information on the data, if a second node next to the first node is a wired node, the first node transmitting a first response message including an address of the second node to the holder node, in response to the first information message, and the holder node transmitting the data to the second node, according to the first response message, if the second node is a wireless node, the first node transmitting a second information message including information on the data to the second node, and if a third node next to the second node is a wired node, the second node transmitting a second response message including an address of the third node to the holder node through the first node in response to the second information message, and the holder node transmitting the data to the third node according to the second response message.