Patent ID: 7460555

Claim:
A terminal apparatus of communicating with at least one other terminal apparatus via a communication medium, comprising: an operation mode setting section operable to set the terminal apparatus to operate as a control terminal controlling an opportunity of access of the other terminal apparatus to the communication medium or as a controlled terminal whose opportunity of access to the communication medium is controlled by another terminal apparatus operating as a control terminal; an interference recognizing section operable to recognize interference from at least one logical network other than a logical network to be controlled, when the operation mode setting section sets the terminal apparatus to operate as the control terminal; a unification determining section operable to determine whether or not the logical network to be controlled is unified with the other logical network, when the interference recognizing section recognizes the interference from the other logical network; and a new control terminal determining section operable to determine whether a control terminal of a logical network newly created by unification is the terminal apparatus or a control terminal of the other logical network, when the unification determining section determines that the logical network to be controlled is unified with the other logical network, wherein the operation mode setting section sets the terminal apparatus to operate as the control terminal of the newly created logical network, when the new control terminal determining section determines that the control terminal of the newly created logical network is the terminal apparatus, and the operation mode setting section sets the terminal apparatus to operate as a controlled terminal of the newly created logical network, when the new control terminal determining section determines that the control terminal of the newly created logical network is the control terminal of the other logical network.