Method and apparatus for transmitting and receiving feedback on channel state information

摘要

Provided is a method for operating a terminal for feedback on channel state information (CSI) in a carrier aggregation system according to the present disclosure. The method may comprise the steps of: receiving CSI feedback configuration information for each of a plurality of downlink component carriers from a base station; and feeding channel status information back to the base station through a physical uplink control channel (PUCCH) of an uplink primary component carrier on the basis of the configuration information of the received CSI feedback. The configuration information of the CSI feedback may be received through any one or each of the plurality of downlink component carriers.

主权项

1. A method for performing a channel state information (CSI) report in a wireless communication system, the method comprising:
receiving, at a user equipment, a configuration message including one or more cell indexes indicating one or more serving cells of a plurality of serving cells and information used for configuring the CSI report of the one or more serving cells; and transmitting, at the user equipment, a CSI report of only a single serving cell in a corresponding subframe, wherein the transmitting of the CSI report of only the single serving cell includes: if CSI reports of two or more serving cells of the plurality of serving cells collide with each other in the corresponding subframe, dropping one or more CSI reports having lower priorities, and if CSI reports of different serving cells having a same priority collide with each other in the corresponding subframe, dropping CSI reports of one or more serving cells other than one serving cell having the lowest cell index.