A method for transmitting, by a terminal, an uplink control channel and a localized SRS comprises the steps of: receiving, from a base station, first control information for triggering transmission of the uplink control channel and second control information for triggering transmission of the localized SRS; and if a transmission resource of the triggered uplink control channel overlaps with a transmission resource of the triggered localized SRS and the length of a frequency band of the localized SRS is shorter than or equal to the length of a coherent bandwidth, dividing the uplink control channel into a plurality of uplink control channel sub-blocks on a frequency domain and transmitting the divided uplink control channel sub-blocks, wherein the divided uplink control channel sub-blocks may be frequency division multiplexed with the triggered localized SRS and transmitted on one symbol.