Method for determining the number of bits of rank indicator (RI), base station, and terminal

摘要

The present invention provides a method for determining the number of bits of a rank indicator (RI), a base station, and a terminal. The method comprises: a base station determining indication information according to correspondence between a terminal and the base station and multi-input multi-output (MIMO) capability of the terminal, the indication information comprising information used by the terminal to determine the number of bits occupied for sending an RI; and the base station sending the indication information to the terminal, so that the terminal determines, according to the indication information, the number of bits occupied for sending the RI. By means of the present invention, the UE and the base station obtain consistent understanding of the number of bits occupied by the RI information.