Patent ID: 8971197
Filing Date: 2015-03-03
Classification: H04L,H04W

Abstract:
1. A method for reporting uplink control information, adapted to a wireless communication device supporting multiple component carriers (CC), the method comprising: when the wireless communication device is scheduled to transmit an aperiodic channel state information (CSI) report of an activated downlink CC to a base station via an uplink shared channel but the wireless communication device has not successfully measured a CSI of the activated downlink CC, the wireless communication device executing following steps on the activated downlink CC: determining whether the aperiodic CSI report is an invalid CSI report, when the aperiodic CSI report is an invalid CSI report, determining whether the invalid CSI report comprises a RI value, wherein the invalid CSI report is caused since the CSI report is triggered upon receiving an activation command of the activated downlink CC; respectively calculating full payloads of channel quality indicator (CQI)/precoding matrix indicator (PMI) corresponding to a plurality of selectable rank indicator (RI) values; and selecting a RI value of the activated downlink CC according to the full payloads of the CQI/PMI corresponding to the selectable RI values.