Patent ID: 8243622

Claim:
A communication method of a wireless terminal in a wireless communication system comprising an Infrastructure (IS) network, the method comprising: broadcasting a discovery signal comprising terminal information of the wireless terminal to a radio network over a common channel; receiving a response signal comprising information for network access from one of a base station and another wireless terminal, which received the discovery signal; selecting an operation mode for access to a network through one of the base station and the other wireless terminal, based on the response signal; communicating with the base station and accessing the IS network when the selected operation mode corresponds to a first mode; and accessing a network, to which the other wireless terminal belongs, through a licensed frequency band of the IS network when the selected operation mode corresponds to a second mode, wherein the second mode comprises a dual mode for accessing an ad-hoc network that uses a licensed frequency band of the IS network when the network to which the other wireless terminal belongs is the ad-hoc network.