1. A method for transmitting, by a user equipment (UE), an uplink control channel in a wireless communication system, the method comprising:receiving, from a base station via higher layer signaling, beam information for a transmission of the uplink control channel; and
transmitting, to the base station, the uplink control channel, via at least one beam configured based on the beam information,
wherein the beam information includes information for a pre-configured beam set including the at least one beam,
wherein the at least one beam is related to a reference signal which is transmitted and received between the base station and the UE,
wherein the at least one beam is based on a single beam or a plurality of beams in the pre-configured beam set,
wherein the at least one beam is configured to be the plurality of beams in the pre-configured beam set based on a specific condition being satisfied, and
wherein the specific condition is configured to be satisfied based on that a value represented by measurement information for the reference signal is smaller than a pre-configured threshold.