A method of performing, by a user equipment, an uplink transmission in a wireless communication system, the method comprising: receiving radio resource control, RRC, signaling including uplink-downlink, UL-DL, configuration information; determining each symbol as a downlink, uplink or flexible symbol based on the UL-DL configuration information; receiving downlink control information, DCI, that includes physical uplink shared channel, PUSCH, resource allocation information regarding a plurality of symbols for the uplink transmission; determining unusable symbols for the uplink transmission among the plurality of symbols, based on the UL-DL configuration information; determining remaining symbols except for the unusable symbols as a plurality of usable symbols for the uplink transmission among the plurality of symbols; and performing the uplink transmission in each of sets of contiguous symbols among multiple sets of contiguous symbols, wherein determining the unusable symbols for the uplink transmission among the plurality of symbols, based on the UL-DL configuration information, comprises: determining a symbol that is indicated as downlink by the UL-DL configuration information as an unusable symbol for the uplink transmission, characterized in that each of the multiple sets of contiguous symbols consists of one or more contiguous usable symbols within the plurality of usable symbols, and wherein performing the uplink transmission comprises: omitting the uplink transmission in a symbol set among the multiple sets of contiguous symbols, based on the number of symbols included in the symbol set being 1. receiving radio resource control, RRC, signaling including uplink-downlink, UL-DL, configuration information; determining each symbol as a downlink, uplink or flexible symbol based on the UL-DL configuration information; receiving downlink control information, DCI, that includes physical uplink shared channel, PUSCH, resource allocation information regarding a plurality of symbols for the uplink transmission; determining unusable symbols for the uplink transmission among the plurality of symbols, based on the UL-DL configuration information; determining remaining symbols except for the unusable symbols as a plurality of usable symbols for the uplink transmission among the plurality of symbols; and performing the uplink transmission in each of sets of contiguous symbols among multiple sets of contiguous symbols, wherein determining the unusable symbols for the uplink transmission among the plurality of symbols, based on the UL-DL configuration information, comprises: determining a symbol that is indicated as downlink by the UL-DL configuration information as an unusable symbol for the uplink transmission, characterized in that each of the multiple sets of contiguous symbols consists of one or more contiguous usable symbols within the plurality of usable symbols, and determining a symbol that is indicated as downlink by the UL-DL configuration information as an unusable symbol for the uplink transmission, characterized in that each of the multiple sets of contiguous symbols consists of one or more contiguous usable symbols within the plurality of usable symbols, and wherein performing the uplink transmission comprises: omitting the uplink transmission in a symbol set among the multiple sets of contiguous symbols, based on the number of symbols included in the symbol set being 1.