COMMUNICATION APPARATUS, COMMUNICATION METHOD, COMMUNICATION CIRCUIT, MOBILE PHONE, PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM WITH PROGRAM RECORDED THEREIN

摘要

A communication apparatus (1), which is a primary station to communicate with a secondary station, is provided with a first protocol control unit (111) that transmits a station discovery command to confirm the existence of the secondary station when the communication device connects with the secondary station and then transmits a first connecting request command to carry out connection processing, a second protocol control unit (112) that transmits a second connecting request command to carry out connection processing when the communication device connects with the secondary station, a protocol switching unit (113) that first makes the first protocol control unit (111) transmit the station discovery command and, if it then receives no response to the station discovery command from the secondary station for a predetermined period of time, makes the second protocol control unit (112) transmit the second connecting request command.