| 摘要 |
A method for Channel State Information (CSI) feedback in a wireless communication system includes: determining parameters required for the CSI feedback in a first wireless communication system, so that a feedback structure of the first wireless communication system in Physical Uplink Control Channel (PUCCH) is based on a feedback structure of a second wireless communication system in the PUCCH; notifying the parameters to a user equipment; transmitting a Channel State Information Reference Symbol (CSI-RS) to the user equipment periodically, so that the user equipment calculates the CSI required to be fed back; and receiving the CSI fed back by the user equipment according to the feedback structure of the first wireless communication system in the PUCCH in response to the CSI-RS, wherein information fed back for each BP is information obtained by jointly encoding optimum subband Channel Quality Information (CQI) with optimum subband Pre-encoding Matrix Information (PMI) in the BP. |
