A terminal is disclosed including a receiver that receives system information, the system information including an index value that indicates a first offset value; and a processor that determines a frequency resource for an uplink control channel using frequency-hopping, based on the first offset value and a second offset value, the second offset value being based on at least one of a field value in a downlink control information and an index value of a control channel element. In other aspects, a base station and a radio communication method are also disclosed.