Feedback control means, feedback means and the feedback method multiuser mimo

The present invention provides a high flexibility and the reference signal configuration signaling by the base station side can be sufficiently acquired downlink multiple-user MIMO feedback gain control means as far as possible to avoid overhead, as well as multi-user MIMO feedback means feedback method. Feedback control means for multi-antenna base station for feedback control of the terminal, comprising: a high-level link establishing means, through high-level link established between the terminal and transmitting high layer signaling; signaling level generating means generates a high-level signaling, the upper-layer signaling is used to specify the terminal state information feedback mode channel; a receiving unit that receives from the terminal, the channel state information and signaling level corresponding to the specified feedback mode; and a multi-user processing unit, in accordance with the receiving channel state information, the multi-user multiple input multiple output processing related to MIMO.