Patent ID: 7756476

Claim:
A first terminal, comprising: a memory storing a first ID identifying a first wireless network group to which the first terminal is connected; a beacon generator for generating a first beacon indicating the first ID and operation mode information of the first terminal; a transmitter for transmitting the first beacon; a receiver for receiving a second beacon from the second terminal, the second beacon indicating a second ID identifying a second wireless network group to which the second terminal is connected, and operation mode information of the second terminal; and a registration processor configured to: determine, based on the operation mode information of the first and second terminals, whether the first terminal enters a registration operation mode before the second terminal enters the registration operation mode; when it is determined that the first terminal enters the registration operation mode before the second terminal enters the registration operation mode, transmit to the second terminal an attribute certificate for joining the first wireless network group; and when it is determined that the second terminal enters the registration mode before the first terminal enters the registration mode, transmit to the second terminal a request for registration on the second wireless network group.