Edge peer device, pan gateway device, super peer device, and p2p network-based interconnection method

A Personal Area Network (PAN) gateway device, comprising:

• a second peer device connection management unit for allowing the PAN gateway device to participate in a P2P network through a connection to a super peer device or an edge peer device, and establishing a pipe connection to the edge peer device or other PAN gateway device to transmit or receive contents;
• a second peer device authentication unit for performing authentication of the PAN gateway device through both the super peer device and an authentication server;
• a second advertisement management unit for generating and storing advertisements which notify the P2P network of PAN gateway information and indexing the advertisements to transmit the indexed advertisements to the super peer device;
• a PAN profile and library management unit for searching for surrounding PAN devices and pairing the edge peer device and the found PAN devices;
• a second PAN device management unit for managing a list of the found PAN devices to generate Universal Unique Identifiers (UUIDs) corresponding to the PAN devices;
• a second PAN service management unit for managing services of the found PAN devices to generate and manage UUIDs corresponding to the respective services;
• a device and network monitoring unit for managing status and history of connection to the PAN devices to manage and monitor strength of communication with the PAN devices;
• and
• a second P2P communication unit for performing P2P communication with the super peer device and other peer devices.

A super peer device, comprising:

• a third peer device connection management unit for requesting authentication from an authentication server when a request for participation in a Peer-to-Peer (P2P) network is received from a Personal Area Network (PAN) gateway device or an edge peer device to transmit results of authentication to the PAN gateway device or the edge peer device;
• an advertisement index management unit for storing indices of advertisements received from the PAN gateway device or the edge peer device to propagate the indices to other super peer device;
• a message propagation and relay unit for propagating a message received from the PAN gateway device or the edge peer device to other peer or other gateway to search for a specific peer device or resource information when a query for a search for the specific peer device or content is received from the PAN gateway device or the edge peer device;
• and
• a third P2P communication unit for performing P2P communication with the PAN gateway device, the edge peer device and other super peer device.

A Peer-to-Peer (P2P) network-based interconnection method, comprising:

• authenticating both an edge peer device and a Personal Area Network (PAN) gateway device to allow the edge peer device and the PAN gateway device to participate in a P2P network;
• receiving advertisement indices corresponding to edge peer advertisements or PAN gateway advertisements generated by the edge peer device or the PAN gateway device, respectively manage the advertisement indices;
• determining whether an advertisement index corresponding to a search target edge peer device or a search target PAN gateway device is present, when a search query is received from the PAN gateway device or the edge peer device;
• transferring the search query to the search target edge peer device or the search target PAN gateway device through a super peer device, if it is determined that the advertisement index is present;
• and
• transmitting an edge peer advertisement or a PAN gateway advertisement to the PAN gateway device or the edge peer device, which requested the search, in response to the received search query.

A Peer-to-Peer (P2P) network-based interconnection method, comprising:

• receiving a query, which requests provision of information of surrounding PAN devices and services, from an edge peer device in a personal area network (PAN) gateway device;
• transmitting information of surrounding PAN devices, permitted to be used by the edge peer device, to the edge peer device;
• receiving an interconnection request message for requesting interconnection with a specific PAN device selected to be used from among the surrounding PAN devices;
• determining whether the selected specific PAN device has already been interconnected with other peer device in response to the received interconnection request message;
• and
• pairing and interconnecting the edge peer device and the specific PAN device according to a profile of the PAN device, if it is determined that the selected specific PAN device has not already been interconnected with other peer device.

A Peer-to-Peer (P2P) network-based interconnection method, comprising:

• transmitting a query, which requests surrounding Personal Area Network (PAN) devices and service information to a PAN gateway device in an edge peer device;
• receiving information of surrounding PAN devices permitted to be used by the edge peer device from the PAN gateway device;
• requesting interconnection with a specific PAN device selected from the received surrounding PAN device information;
• and
• pairing and interconnecting the specific PAN device and the edge peer device according to a profile of the PAN device.