Wireless communication system, wireless communication apparatus and wireless communication method, and computer program

A wireless communication apparatus performing data transmission under a wireless communication environment, comprising:

• communication means for transmitting and/or receiving wireless data on a communication channel;
• band usage information gathering means for gathering information designating band usage information in the peripheral stations;
• usable band determining means for grasping bands usable and unusable by the own station by the gathered information;
• usable band setting means for setting a band to be actually used by the own station based on the determination result;
• unusable band setting means for setting a band unusable by the own station based on the determination result;
• communication control means for controlling communication operation based on the usable and unusable bands set;
• and
• band usage information informing means for informing information designating a use situation about the band set in the own station to the peripheral station.

A wireless communication method performing data transmission under a wireless communication environment, comprising:

• a band usage information gathering step of gathering information indicative of a band use situation in a peripheral station;
• a usable band determining step of grasping bands unusable and usable by an own station from the information;
• a usable band setting step of setting a band to be actually used by the own station based on a result of the determination;
• an unusable band setting step of setting a band unusable by the own station based on the result of the determination;
• a communication control step of controlling communication operation based on the usable and unusable bands set;
• and
• a band usage information informing step of informing information indicative of a use situation about the band set by the own station to the peripheral station.

A computer program described in a computer-readable form for execution of control of a wireless communication operation for implementing data transmission under a wireless communication environment over a computer system, said computer program comprising:

• a band usage information gathering step of gathering information indicative of a band use situation in a peripheral station;
• a usable band determining step of grasping bands unusable and usable by an own station from the information;
• a usable band setting step of setting a band to be actually used by the own station based on a result of the determination;
• an unusable band setting step of setting a band unusable by the own station based on the result of the determination;
• a communication control step of controlling communication operation based on the usable and unusable bands set;
• and
• a band usage information informing step of informing information indicative of a use situation about the band set by the own station to the peripheral station.