| 摘要 |
PROBLEM TO BE SOLVED: To enable the notification of a cause type, not only a simple notification of a radio communication failure.SOLUTION: Radio field intensity judgment means 510 judges radio field intensity between equipment performing radio communication. ACK signal reception judgment means 520 judges the existence or non-existence of signal transmission/reception at communication in order to perform actual radio communication between the equipment concerned. Retry calculation means 530 judges the number of transmission/reception times of radio connection requests which are made prior to the actual radio communication. Pairing success/failure judgment means 540 judges the success or failure of the radio connection based on each radio connection request. Based on the judgment results, a radio communication fault type is judged. |
