| 摘要 |
PROBLEM TO BE SOLVED: To avoid collision against other system at high speed when data is transmitted/received by wireless communication using a frequency hopping system. SOLUTION: A communication master 10 and a communication slave 20 previously hold a list where a plurality of frequency channels are divided to a plurality of tables for each of a predetermined number of continuous frequency channels, and transmit/receive data while altering the frequency channel in a sequence according to that list. When there is no interference with other communication system, hopping is performed using all frequency channels on all tables. The communication master 10 determines the proportion of frequency channels where a packer error has occurred for each table and makes a table unavailable when the proportion exceeds a threshold. When taking a round of all tables available of the frequency channel, information of availability of each table is notified to the communication slave 20. COPYRIGHT: (C)2006,JPO&NCIPI |
