| 摘要 |
The present invention relates to transmitting D2D data using an LTE downlink channel, and more specifically, to a system and a method for downlink data transmission in LTE D2D communication, which efficiently uses existing LTE channels without building a separate channel for D2D communication. The system for downlink data transmission in LTE D2D communication comprises a first base station wirelessly providing a mobile communications service and a first terminal receiving the mobile communications service from the first base station, wherein the first terminal performs D2D communication with at least one among a second terminal that wirelessly receives the mobile communications service from the first base station, a third terminal that receives the mobile communications service from a second base station providing wirelessly the mobile communications service in a region different from that of the first base station, and a fourth terminal that receives no mobile communication service. |
