Patent ID: 7212514

Claim:
A mobile communication device capable of data communication through an ad hoc network, said mobile communication device comprising: a reception section for receiving inquiry information for inquiring whether to accept or deny participation in the ad hoc network, the inquiry information being sent from another mobile communication device; a storage device for storing information indicating whether or not to accept the participation in the ad hoc network based on a user's input; a condition determination section for, after said reception section receives the inquiry information, determining whether or not at least one preset condition is satisfied based on a state of said mobile communication device; and a transmission section for generating information for denying the participation in the ad hoc network based on a determination result of said condition determination section, and for transmitting the generated information to the other mobile communication device, wherein when said condition determination section determines that the information stored in said storage device indicates that the participation in the ad hoc network is not to be accepted, said transmission section is operable to generate the information for denying the participation in the ad hoc network.