WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND WIRELESS DEVICE

摘要

After checking the status of use of a frequency band in a primary system by preliminary sensing, a master node transmits to slave nodes a sensing request including a target frequency band for cooperative sensing. The slave nodes perform spectrum sensing according to a specified parameter and reply the results to the master node. The master node collectively receives these results, comprehensively determines the sensing results of the slave nodes, and finally determines whether the target frequency band is usable or not.