Method and apparatus for transmitting and receiving feedback information in a mobile communication system

摘要

A method and apparatus for transmitting feedback information by a User Equipment (UE) in a mobile communication system are provided. The method includes receiving information about at least one Channel State Information Reference Signal (CSI-RS); performing channel estimation based on the information about at least one CSI-RS; receiving information about at least one feedback; and transmitting at least one feedback including a channel estimation result using the information about at least one feedback, wherein the information about at least one feedback includes information about a transmission timing and a feedback mode for at least one feedback.

主权项

1. A method for transmitting feedback information by a user equipment (UE) in a mobile communication system, the method comprising:
receiving at least one channel state information (CSI) feedback index, information about at least one channel state information reference signal (CSI-RS) corresponding to the at least one CSI feedback index, information about a transmission period and an offset corresponding to the at least one CSI feedback index; and transmitting a CSI feedback with a lowest CSI feedback index, in case of collision between CSI feedbacks corresoonding to different CSI feedback indexes, wherein the CSI feedback is derived from channel measurement based on the at least one CSI-RS corresponding to the lowest CSI feedback index.