| 摘要 |
The present invention relates to a method for periodically reporting channel state information (CSI) by a terminal in a license assisted access (LAA)-based wireless communication system supporting carrier aggregation between a serving cell in a licensed band and a serving cell in an unlicensed band, the method comprising the steps of: determining whether a collision between a plurality of periodic CSI reports occurs on subframe n; when a collision between the plurality of periodic CSI reports occurs, determining whether periodic CSI reports for a serving cell in an unlicensed band, among the plurality of periodic CSI reports, are valid; selecting, on the basis of the priority, one periodic CSI report from among the plurality of periodic CSI reports excluding invalid periodic CSI reports for the serving cell in the unlicensed band; and transmitting the selected one periodic CSI report to a base station. |
