Patent ID: 9072086
Filing Date: 2015-06-30
Classification: H04L,H04W

Abstract:
1. A method of a user equipment (UE) for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) signal on a physical uplink control channel (PUCCH), the method comprising the steps of: receiving, by the UE, configuration information indicating a first set of physical resource blocks (PRBs) for localized transmission on a first physical downlink control channel (PDCCH) or indicating a second set of PRBs for distributed transmission on a second PDCCH, wherein a PRB includes contiguous frequency resource elements (REs) over a transmission time interval (TTI); receiving, by the UE, downlink control information (DCI) on the first PDCCH or the second PDCCH using respective control channel elements (CCEs), wherein the DCI includes a HARQ-ACK PUCCH resource offset (HPRO) information field, and wherein the UE receives the DCI on the first PDCCH based on a demodulation reference signal (DMRS) corresponding to an index N determining, by the UE, a first PUCCH resource based on a first CCE index, the N determining, by the UE, a second PUCCH resource based on the first CCE index, the HPRO information field, and a second offset assigned to the UE from the base station, if the UE receives the DCI on the second PDCCH; and transmitting, by the UE, the HARQ-ACK signal associated with the DCI on the determined first or second PUCCH resource.