Device and method for compressing and/or decompressing channel status information

The invention relates to generating compressed channel state information and recovering channel state information from the compressed channel state information. Provided is a computing device for compressing channel state information (CSI), wherein the CSI represents a channel transfer function H (101) having a spatial dimension and a frequency dimension; the computing device comprises a transformation unit (111) and compression units (112, 114); the transformation unit (111) is used for subsequently performing a spatial transformation (104, 109) and a frequency-to-time transformation (106, 107) on the channel transfer function H (101) in any order to obtain a transformed channel transfer function HT (110); and the compression units (112, 114) are used for selecting a value of the transformed channel transfer function HT (110) and generating compressed channel state information (CCSI) (115) based on the selected value. 本发明涉及生成压缩信道状态信息，以及从所述压缩信道状态信息中恢复信道状态信息。一种用于压缩信道状态信息(channel state information，CSI)的计算设备，其中，