Disclosed is a technique of efficiently collecting communication quality information with excellent responsiveness in wireless resource management. According to the technique, a RRM 110 distributes measurement content information showing measurement contents for recognizing a wireless communication status to each AP 230, and each AP stores the measurement content information. For example, to recognize a wireless resource use status of an AP, the RRM transmits trigger transmission instruction information to an eNB 150, as a result of which trigger information is transmitted throughout a communication area of the eNB. A UE 301 that has received the trigger information acquires the measurement content information from an AP (for example, AP_a 230a) to which it is connected, and performs a measurement process and reports a measurement result to the RRM via the eNB based on the measurement content information.