Feedback method and terminal for precorrection information

The invention provides a feedback method and a terminal for precorrection information. The method comprises the following steps: the terminal selects code words from predefined code books; and the terminal feeds back the indexes of the code words serving as precorrection information back to a base station side. According to the method and the terminal, the precorrection information is fed back to the base station side by adopting the terminal, and an in-phase merging effect of all layers in local precoding is better, so that an effect of eliminating interlayer interference is achieved.