| 摘要 |
The present invention discloses a method for D2D communication, including: carrying control information and data information, to be sent, in a physical resource block, wherein the physical resource block comprises M orthogonal frequency division multiplexing (OFDM) symbols in time domain and comprises N subcarriers in frequency domain, time frequency resource defined by one OFDM symbol and one subcarrier being a resource element (RE), and M and N being integers; and wherein the control information comprises at least one of a modulation and coding scheme (MCS), a redundancy version (RV) and a new data indicator (NDI), at least one of the MCS, the RV and the NDI being mapped onto an RE in high frequency part of the physical resource block, and the data information being mapped onto a blank RE in the physical resource block excluding the RE onto which the control information is mapped; and sending the physical resource block to a target user equipment on a device to device (D2D) communication link. The present invention further discloses a D2D communication system. According to the embodiments of the present invention, by reasonably configuring an uplink physical channel of D2D communication, spectral efficiency and data transmission rate can be improved. |
