| 摘要 |
Embodiments of the present invention provide a Device to Device (D2D) data transmission method and a device. The D2D data transmission method comprises: a device determines the frame structure of a sub-frame used for communications; the device communicates with other devices via the sub-frame; the number of the Orthogonal Frequency Division Multiplexing (OFDM) symbols in the sub-frame used for transmitting the De-Modulation Reference Signal (DMRS) is no less than 3, and the OFDM symbols in the sub-frame used for transmitting the DMRS are distributed in intervals of the sub-frame. Embodiments of the present invention are used for improving the reliability of the data transmission in D2D communication when the channels rapidly change. |
