Patent 7974256 was granted and assigned to Sony on July, 2011 by the United States Patent and Trademark Office.
A radio communication system for carrying out communications among a plurality of radio communication apparatus pertaining to the radio communication system through a radio network connecting the radio communication apparatus with each other wherein, each of the radio communication apparatus includes an access setting unit configured to prescribe a super frame period within a predetermined time and setting a reserved period within the super frame as a period for making an access to the radio network, and the access setting unit selects either a first reservation setting method not contending with reservation setting done by another radio communication apparatus, or a second reservation setting method possibly contending with reservation setting done by another radio communication apparatus.