| 摘要 |
A mobile communication system that supports Device to Device (D2D) communications, comprises: a base station that notifies a plurality of user terminals of a D2D common RNTI that is a radio network temporary identifier (RNTI) which is common in the plurality of user terminals, and that is used to collectively transmit, to the plurality of user terminals, a D2D control signal for controlling the D2D communications. |
