Patent ID: 9161254
Filing Date: 2015-10-13
Classification: H04B,H04J,H04L,H04W,Y02D

Abstract:
1. A user equipment (UE), the UE comprising circuitry configured to: identify a reporting period and an offset period for a secondary cell to report a periodic channel state information (CSI) report for the secondary cell to an evolved node B (eNB) based on a CSI reporting configuration of the secondary cell; identify if an uplink (UL) subframe of a primary cell used to send a periodic CSI report using a Physical Uplink Control Channel (PUCCH) on the primary cell corresponds to a subframe of a periodic CSI reporting instance of the secondary cell; identify if the UL subframe of the primary cell does not correspond to the subframe of the periodic CSI reporting instance of the secondary cell, the periodic CSI reporting instance being determined based on the reporting period and the offset period for the secondary cell; transmit the periodic CSI report for the secondary cell, to the eNB, using the PUCCH on the primary cell when the UL subframe of the primary cell corresponds to the subframe of the periodic CSI reporting instance of the secondary cell; and drop the periodic CSI report for the secondary cell when the subframe of the periodic CSI reporting instance for the secondary cell does not correspond with the UL subframe of the primary cell.