Terminal, radio communication method, and base station

A radio communication method for a terminal, the radio communication method comprising:

• receiving a configuration for two physical downlink control channel (PDCCH) candidates linked with each other;
• and
• using, when downlink control information transmitted by using the two PDCCH candidates corresponds to a reference PDCCH candidate of the two PDCCH candidates, the downlink control information for uplink control channel resource determination.

A base station comprising:

• a transmitting section that transmits, to a terminal, a configuration for two physical downlink control channel (PDCCH) candidates linked with each other;
• and
• a receiving section that receives uplink control information transmitted by using an uplink control channel resource determined, when downlink control information transmitted by using the two PDCCH candidates corresponds to a reference PDCCH candidate of the two PDCCH candidates, based on the downlink control information.