Patent ID: 7164887

Claim:
A radio communication device which is capable of selectively operating as master terminal and slave terminal, wherein the master terminal forms a network with the slave terminal using a short range radio communication function, comprising: a position measuring unit which measures first positional relationship with other radio communication device; if operating as master terminal, a switch timing judgment unit which judges timing to take over master terminal to a radio communications device operating as slave terminal based upon the first positional relationship; if operating as master terminal, a position information requesting unit which requests each radio communication device operating as slave terminal to provide second positional relationship between the requested radio communication device operating as slave terminal and other radio communication device, and receives the second positional relationship from the radio communication device operating as slave terminal; if operating as master terminal, a candidate radio communication device determining unit which selects a radio communication device to be operating as master terminal based upon the second positional relationship from the radio communication device operating as slave terminal; and if operating as master terminal, an operating mode switch requesting unit which requests the selected radio communication device to operate as master terminal.