A method for configuring a Channel State Information-Reference Signal, CSI-RS, the method comprising: determining (S61) configuration information of 16-port CSI-RS configured for an User Equipment, UE, wherein the configuration information of the 16-port CSI-RS comprises information of Resource Elements, REs occupied by the 16-port CSI-RS configured for the UE, and the REs occupied by the 16-port CSI-RS comprises REs other than REs occupied by a Physical Downlink Control Channel, PDCCH, a cell-specific Reference Signal, RS and a UE-specific RS; and sending (S62), to the UE, the configuration information of the 16-port CSI-RS configured for the UE, wherein the REs occupied by the 16-port CSI-RS configured for the UE are any 16 REs selected from predetermined REs occupied by a CSI-RS, and the REs occupied by the 16-port CSI-RS are: REs corresponding to (k,l) = { , , , } of a first slot and REs corresponding to (k,l) = { , , , , , , , , } of a second slot in each of Physical Resource Blocks, PRBs; or REs corresponding to (k,l) = { , , , } of the first slot and REs corresponding to (k,l) = { , , , , , , , , } of the second slot in each of the PRBs, wherein k is a subcarrier sequence number of a subcarrier comprised in the PRB and k is sequentially valued to be 0, 1, 2,......, 11 from bottom to top; and l is an Orthogonal Frequency Division Multiplexing, OFDM sequence number comprised in each of slots in the PRB and l is sequentially valued to be 0, 1, 2,......, 6 from left to right in the slot. determining (S61) configuration information of 16-port CSI-RS configured for an User Equipment, UE, wherein the configuration information of the 16-port CSI-RS comprises information of Resource Elements, REs occupied by the 16-port CSI-RS configured for the UE, and the REs occupied by the 16-port CSI-RS comprises REs other than REs occupied by a Physical Downlink Control Channel, PDCCH, a cell-specific Reference Signal, RS and a UE-specific RS; and sending (S62), to the UE, the configuration information of the 16-port CSI-RS configured for the UE, wherein the REs occupied by the 16-port CSI-RS configured for the UE are any 16 REs selected from predetermined REs occupied by a CSI-RS, and the REs occupied by the 16-port CSI-RS are: REs corresponding to (k,l) = { , , , } of a first slot and REs corresponding to (k,l) = { , , , , , , , , } of a second slot in each of Physical Resource Blocks, PRBs; or REs corresponding to (k,l) = { , , , } of the first slot and REs corresponding to (k,l) = { , , , , , , , , } of the second slot in each of the PRBs, wherein k is a subcarrier sequence number of a subcarrier comprised in the PRB and k is sequentially valued to be 0, 1, 2,......, 11 from bottom to top; and l is an Orthogonal Frequency Division Multiplexing, OFDM sequence number comprised in each of slots in the PRB and l is sequentially valued to be 0, 1, 2,......, 6 from left to right in the slot. REs corresponding to (k,l) = { , , , } of a first slot and REs corresponding to (k,l) = { , , , , , , , , } of a second slot in each of Physical Resource Blocks, PRBs; or REs corresponding to (k,l) = { , , , } of the first slot and REs corresponding to (k,l) = { , , , , , , , , } of the second slot in each of the PRBs, wherein k is a subcarrier sequence number of a subcarrier comprised in the PRB and k is sequentially valued to be 0, 1, 2,......, 11 from bottom to top; and l is an Orthogonal Frequency Division Multiplexing, OFDM sequence number comprised in each of slots in the PRB and l is sequentially valued to be 0, 1, 2,......, 6 from left to right in the slot. <EOS>