Method, system, and device for configuring channel measurement and dl csi feedback

4-5. (canceled)

8-9. (canceled)

A method for downlink Channel State Information, DL CSI, feedback, comprising:

• a user equipment receiving channel measurement configuration information, corresponding to groups of downlink sub-frames, from a network side device, wherein downlink sub-frames are divided by the network side device into the groups of downlink sub-frames;
• and
• the user equipment measuring DL CSI according to the channel measurement configuration information and feeding back a measurement result to the network side device.

16-18. (canceled)

23-25. (canceled)

A network side device for configuring channel measurement, comprising:

• a dividing module configured to divide downlink sub-frames into a plurality of groups of downlink sub-frames;
• and
• a first processing module configured to notify a user equipment of channel measurement configuration information corresponding to the groups of downlink sub-frames.

29-37. (canceled)

A user equipment for downlink Channel State Information, DL CSI, feedback, comprising:

• a receiving module configured to receive channel measurement configuration information, corresponding to groups of downlink sub-frames, from a network side device, wherein downlink sub-frames are divided by the network side device into the groups of downlink sub-frames;
• and
• a second processing module configured to measure DL CSI according to the channel measurement configuration information and feeding back a measurement result to the network side device.

39-55. (canceled)