Patent ID: 9723608
Date: 2017-08-01
CPC Classifications: H04L,H04W

Claim:
1. A method for device-to-device (D2D) communication, comprising: carrying control information and data information, to be sent, in a physical resource block; and sending the physical resource block to a target user equipment (UE) on a D2D communication link, wherein the physical resource block comprises M orthogonal frequency division multiplexing (OFDM) symbols in a time domain and N subcarriers in a frequency domain, wherein a time frequency resource defined by one OFDM symbol and one subcarrier is a resource element (RE), wherein M and N are integers, 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), wherein at least one of the MCS, the RV, and the NDI is mapped onto an RE in a high frequency part of the physical resource block, and wherein the data information is mapped onto a blank RE in the physical resource block excluding the RE onto which the control information is mapped; wherein the control information further comprises a demodulation reference signal (DMRS), an acknowledgement/negative acknowledgement (A/N), and a rank indicator (RI); wherein the DMRS is mapped onto a first OFDM symbol in the physical resource block, wherein the A/N is mapped onto a second OFDM symbol in the physical resource block and distributed on the second OFDM symbol from low frequency to high frequency, wherein the second OFDM symbol is adjacent to the first OFDM symbol, wherein the RI is mapped onto a third OFDM symbol in the physical resource block and distributed on the third OFDM symbol from low frequency to high frequency, and wherein one OFDM symbol is present between the third OFDM symbol and the first OFDM symbol.