| 摘要 |
Disclosed are a device-to-device (D2D) sending, receiving, and scheduling methods, and corresponding apparatuses. The receiving method comprises: receiving, by a user equipment 1 (UE1), a D2D data packet sent by a user equipment 2 (UE2); verifying, by the UE1, the D2D data packet, and sending, by the UE1, feedback information indicating the verification result, the feedback information being ACK or NACK; if the feedback information is NACK, receiving a resend of the D2D data packet. The sending method comprises: transmitting, by the UE2, the D2D data packet to the UE1; when the UE2 receives the feedback information sent by the UE1 and the feedback information is NACK, or when the UE2 receives authorization information sent by a device at a network side, re-transmitting, by the UE2, the D2D data packet to the UE1. The scheduling method comprises: sending, by the device at the network side, first authorization information to the UE2, and scheduling, by the device at the network side, the UE2 to send the D2D data packet to the UE1; if the device at the network side receives the feedback information sent by the UE1 and the feedback information is NACK, then sending, by the device at the network side, second authorization information to the UE2, and scheduling, by the device at the network side, the UE2 to re-transmit the D2D data packet. |
