Patent ID: 9654268
Date: 2017-05-16
CPC Classifications: H04L,H04W

Claim:
1. A terminal apparatus comprising: a receiver, which, in operation, receives a first downlink control channel signal in an enhanced Physical Downlink Control Channel (ePDCCH) and receives a second downlink control channel signal in a Physical Downlink Control Channel (PDCCH), wherein the first downlink control channel signal assigns a first downlink data in one or more component carriers and the second downlink control channel signal assigns a second downlink data in one or more component carriers; a controller, which, in operation, determines a physical uplink control channel (PUCCH) resource value using at least one of a first indicator value received in the ePDCCH in a component carrier and a second indicator value received in the PDCCH in another component carrier, the first indicator value and the second indicator value being identical to denote a common PUCCH resource between the ePDCCH and the PDCCH; and a transmitter, which, in operation, transmits a response signal using the one PUCCH resource corresponding to the PUCCH resource value.