Method for feeding back channel state information in wireless communication system and apparatus therefor

摘要

The present invention relates to a method for receiving a reference CSI configuration information and a following CSI configuration information which is configured to report a same RI (Rank Indicator) as the reference CSI configuration information, receiving a first CSI-RS (Channel State Information-Resource Signal) configuration information associated with the reference CSI configuration and a second CSI-RS configuration information associated with the following CSI configuration, number of CSI-RS antenna ports according to the second CSI-RS configuration information is same as number of CSI-RS antenna ports according to the first CSI-RS configuration information; and transmitting CSI determined based on at least one of the first CSI-RS configuration information and the second CSI-RS configuration information.

主权项

1. A method for transmitting CSI (Channel State Information) in a wireless access system, the method performed by a user equipment and comprising:
configuring a first CSI process associated with a first CSI-RS (Channel State Information-Resource Signal) and a second CSI process associated with a second CSI-RS; and transmitting the CSI based on at least one of the first CSI process and the second CSI process, wherein a second RI (Rank Indicator) of the second CSI process is configured the same as a first RI of the first CSI process, and wherein a number of a first CSI-RS antenna ports of the first CSI process is the same as a number of a second CSI-RS antenna ports of the second CSI process.