METHOD FOR WIRELESS LOCAL AREA NETWORK (WLAN)-BASED PEER TO PEER (P2P) COMMUNICATION AND APPARATUS FOR SAME

摘要

The present invention relates to a wireless communications system. More specifically, the present invention relates to a method of performing wireless local area (WLN)-based peer-to-peer (P2P) communication at a state in which a P2P apparatus is connected to a cellular network and a first P2P apparatus for the method. The method comprises the steps of: receiving one or more pieces of key information from a cellular base station, wherein each piece of the key information includes a key value corresponding to service identification information; receiving an encrypted data signal from a second P2P apparatus; and performing a process of attempting to decrypt the encrypted data signal using one or more keys corresponding to one or more services in which the first P2P apparatus is interested, among the one or more pieces of key information.