| 摘要 |
<p>A communication device has a transmission/reception unit and a communication processing unit. The transmission/reception unit is formed in accordance with one to N numbers of communication methods (N being an integer of 2 or greater). The communication processing unit selects one of the communication methods from the first to the Nth communication method, and establishes communication via the transmission/reception unit by means of the selected communicaiton method. During a beacon transmission process (201), a first communication device intermittently transmits a beacon (RN0) by means of the first communication method, and intermittently transmits the beacon (RN0) by means of the second to Nth communication methods during the non-selection period (Tnslrf) of the first communication method. During a beacon response process (202), a second communication device attempts to receive the beacon (RN0) by switching between the first to Nth communication methods, and transmits a response (SREQ) to the beacon (RN0) by means of the communication method with which it was possible to receive the beacon (RN0).</p> |
