| 摘要 |
PROBLEM TO BE SOLVED: To provide the title method by which channel switching can be realized simultaneously when an interference takes place and communication can be continued only for a short channel switching time. SOLUTION: A master station 101 in this radio packet communication system informs member radio terminals 102, 103 of a random number radix, and the radio terminals 102, 103 store the received random number radix. When the radio terminal 102 detects interference, the radio terminal 102 informs the master station 101 about detection of interference. The master station 101 receiving it executes channel switching to all radio terminals and informs all the radio terminals about the switching start timing. All the radio terminals generate a random number on the basis of the random number radix according to the same algorithm and decide a channel switching destination channel on the basis of the generated random number according to a prescribed rule. The master station 101 confirms a slot operating state of the switching destination channel, transmits a synchronizing signal required for a radio terminal to take synchronization through a channel when the channel is idle so as to ensure the synchronization of the radio terminal.
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