Patent ID: 9692572
Date: 2017-06-27
CPC Classifications: H04J,H04L,H04W

Claim:
1. A terminal apparatus that is configured to and/or programmed to communicate with a base station apparatus, the terminal apparatus comprising: a downlink control channel detector configured to and/or programmed to detect an Enhanced Physical Downlink Control Channel (EPDCCH), and a response transmitter configured to and/or programmed to transmit Hybrid Automatic Repeat reQuest (HARQ) response information using a first Physical Uplink Control Channel (PUCCH) resource for a Physical Downlink Shared Channel (PDSCH) transmission indicated by a detection of the EPDCCH, wherein the first PUCCH resource is determined on the basis of at least a lowest element index used to construct the EPDCCH and a first value which is a PUCCH resource offset and is determined, within a plurality of values, from a field in downlink control information of the EPDCCH; the field includes an index specifying the PUCCH resource offset; and the first PUCCH resource is determined further on the basis of at least a second value which is configured by a dedicated Radio Resource Control (RRC) signal.