Patent ID: 8310978

Claim:
A wireless communication system wherein packet transmission operations are carried out in an infrastructure mode, said wireless communication system comprising: a first terminal station serving as a data transmission source, the first terminal station including a control unit; a second terminal station serving as a data receiving destination, the second terminal station being associated with a second terminal station address; and a control station configured to communicate with each terminal station and relay a packet transmitted between the two terminal stations; wherein said first terminal station transmits a packet addressed to said second terminal station via said control station, and detects that said second terminal station is within range capable of a direct link, based on said first terminal station receiving a confirmation response packet replied from said second terminal station, said confirmation response packet being replied from said second terminal station upon a predetermined period of time having passed from the time of said control station transferring the packet to said second terminal station address, and wherein if said first terminal station determines that said second terminal station is not within range, said control unit saves an address of the second terminal station and excludes the address from future processing.