MOBILE COMMUNICATION SYSTEM, BASE STATION, USER TERMINAL, AND PROCESSOR

摘要

A mobile communication system which supports D2D communication that is direct inter-terminal radio communication, comprises: a user terminal that transmits and receives discovery signals for a discovery process of a communication target terminal of the D2D communication; and a base station that transmits discovery resource information indicating radio resources to be used for transmitting and receiving the discovery signals. The user terminal transmits and receives the discovery signals when the discovery resource information is received from the base station, by using the radio resource indicated by the received discovery resource information.

主权项

1. A radio base station comprising:
a controller configured to perform a processing of transmitting information, which indicates radio resources, to a user terminal by unicast, wherein the controller is further configured to perform a processing of transmitting the information to another radio base station, and the radio resources are radio resources for using, by the user terminal, to transmit a discovery signal for discovering another user terminal in proximity of the user terminal