| 摘要 |
Reporting of channel state information (CSI) between a transmit node (TN) and a receive node (RN) in wireless communications is disclosed. For a TN being arranged for multiple transmit antenna transmissions and the CSI being represented by K matrix/matrices, W i , from a codebook, C , comprising a plurality of matrices; wherein each matrix in said codebook, C , represents a state for the multi-antenna channel from the TN to the RN, K ‰¥ 1 and i = 0... K -1; a first sub-index, k 1 , and at least one second sub-index, k 2 , are reported for each one of the K matrix/matrices, W i , wherein each one of the K matrix/matrices, W i , is indexed by the first and second sub-indices, and the first and second sub-indices have different time-frequency reporting granularity. |
