Patent ID: 8995373
Filing Date: 2015-03-31
Classification: H04B,H04L,H04W

Abstract:
1. A method for reporting Channel State Information (CSI) in a wireless access system which supports carrier aggregation, the method comprising: receiving, at a User Equipment (UE), information related to a CSI reporting mode for one or more downlink component carriers (DL CCs) from a Base Station (BS); and reporting, at the UE, CSI for the one or more DL CCs to the BS in consideration of the CSI reporting mode, wherein, if a first type CSI for a first DL CC and a second type CSI for a second DL CC are transmitted in a same subframe, the UE reports only CSI for one DL CC to the BS according to a priority of a CSI reporting type related to the CSI reporting mode, and wherein each of the first type CSI and the second type CSI includes at least one of a Rank Indicator (RI), a Precoding Matrix Indicator (PMI), a Wideband Channel Quality Indicator (WB-CQI) or a Subband CQI.