| CPC H04W 74/006 (2013.01) [H04L 5/0055 (2013.01); H04W 72/0453 (2013.01); H04W 74/0833 (2013.01)] | 15 Claims |

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1. An integrated circuit for a base station, the integrated circuit comprising,
an input, which, in operation, inputs an electronic signal, and
controller circuitry, which, in operation, controls:
transmitting, to a terminal station, cell specific information that is used to configure cell specific PUCCH parameters of a physical uplink control channel (PUCCH) resource set during an initial access, and transmitting, to the terminal station, downlink control information (DCI); and
receiving from the terminal station, acknowledgement (ACK) information transmitted using a PUCCH resource in the PUCCH resource set,
wherein the PUCCH resource is determined based on a value of a PUCCH resource indicator included in the DCI, and
wherein a number of PUCCH resources in the PUCCH resource set is larger than 2 to a power of a number of bits of the PUCCH resource indicator.
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