| 摘要 |
Provided in an embodiment of the present invention are a data transmission method, apparatus and device which can increase a utilization efficiency of time-frequency resources. The method comprises: determining, by a transmitting end device, according to a layer number L of data streams and a count R of receiving antennas used by a receiving end device, a signature matrix S; determining, by the transmitting end device, according to a channel matrix H and a signature matrix X, a precoding matrix P and performing, by the transmitting end device, according to the precoding matrix P, a precoding processing on the L layers of the data streams; and transmitting, by the transmitting end device, to the receiving end device, the L layers of the data streams after pre-coding process and information indicating the signature matrix S. |
