Method, system, and device for configuring channel measurement and DL CSI feedback

摘要

Embodiments of the present invention relate to the technical field of wireless communications, and in particular, to a method, system, and device for configuring channel measurement and DL CSI feedback, so as to implement measurement in a dynamic TDD system. The method for configuring channel measurement according to the embodiment of the present invention comprises: a network side device dividing downlink subframes into multiple downlink subframe groups according to an interference condition on the downlink subframes; and the network side device notifying a user equipment of channel measurement configuration information corresponding to the downlink subframe groups. The network side device notifies the user equipment of the channel measurement configuration information corresponding to the multiple downlink subframe groups that are obtained according to the interference condition on the downlink subframe, thereby implementing measurement in the dynamic TDD system.

主权项

1. A method for configuring channel measurement, comprising:
a network side device dividing downlink sub-frames into a plurality of groups of downlink sub-frames; and the network side device notifying a user equipment of channel measurement configuration information corresponding to the groups of downlink sub-frames; wherein after the network side device notifies the user equipment of the channel measurement configuration information corresponding to the groups of downlink sub-frames, the method further comprises: the network side device triggering the user equipment to feed back downlink Channel State Information, DL CSI, of at least one of the groups of downlink sub-frames, wherein the network side device triggering the user equipment to feed back the DL CSI of at least one of the groups of downlink sub-frames comprises: the network side device triggering the user equipment to feed back the DL CSI of at least one of the groups of downlink sub-frames through Channel Quality Indicator, CQI, request information in an uplink, UL, grant; wherein a plurality of bits are occupied by the CQI request information; and the network side device triggering the user equipment to feed back the DL CSI of at least one of the groups of downlink sub-frames through the CQI request information in the UL grant comprises: the network side device determining a bit value corresponding to a group of downlink sub-frames, for which a feedback is required, according to a correspondence relationship between the group of downlink sub-frames and the bit value, determining the CQI request information according to the determined bit value and notifying the user equipment of the determined CQI request information; or the network side device determining a bit value corresponding to a set of downlink sub-frames, for which a feedback is required, according to a correspondence relationship between the set of downlink sub-frames and the bit value, determining the CQI request information according to the determined bit value and notifying the user equipment of the determined CQI request information, wherein one set of downlink sub-frames includes at least one group of downlink sub-frames.