Method and base station for MIMO (Multiple Input Multiple Out) precoding

The invention relates to a method and a base station for MIMO (Multiple Input Multiple Out) precoding. The method comprises the steps that a transmitting end divides time frequency resources in a resource region of a PRB (Physical Resource Block) into at least two sub resource blocks; in each sub resource block, the transmitting end uses the same precoding method for transmission data to be precoded. The method and the base station for the MIMO precoding have the advantage that the accuracy of channel estimation based on demodulation pilot frequency is improved.