WIRELESS TERMINAL, D2D COMMUNICATION CONTROL DEVICE, BASE STATION, BACKUP RELAY WIRELESS TERMINAL SELECTION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

摘要

The purpose of the present invention is to provide a D2D communication control device which, in preparation for the case of the radio channel performing D2D communication being disconnected, is capable of establishing an appropriate backup channel. This D2D communication control device (10) is provided with: a communication unit (11) which receives determination information that can be used to determine whether or not multiple wireless terminals are capable of direct communication with other wireless terminals; and a selection unit (12) which, in a situation in which a first wireless terminal among the multiple wireless terminals is performing D2D communication with a relay wireless terminal that performs cellular communication with a network, selects, from the wireless terminals that are capable of performing D2D communication with the first wireless terminal, a backup relay wireless terminal for which the determination information associated between the first wireless terminal and said backup relay wireless terminal fulfills certain conditions.