A method of performing communication by a user equipment , UE, in a wireless communication system, the method comprising: receiving system information including information regarding uplink/downlink, UL/DL, resource configuration for time divisional multiplexing, TDD; identifying, based on the information regarding the UL/DL resource configuration, i) a static DL resource at a beginning part of 14 symbols in a transmission time interval, TTI, ii) a static UL resource at an ending part of the 14 symbols in the TTI, and iii) a flexible resource between the static DL resource and the static UL resource; receiving dynamic signaling information regarding UL/DL indication for iii) the flexible resource and transmitting or receiving, based on the information regarding the UL/DL resource configuration and the dynamic signaling information, data (S602, S606) in the TTI, wherein the UE is configured to perform a periodic channel state information-reference signal, CSI-RS, reception, and to perform a periodic sounding reference signal, SRS, transmission, the UE performs the periodic CSI-RS reception based on i) the static DL resource other than ii) the static UL resource and the UE performs the periodic SRS transmission based on ii) the static UL resource other than i) the static DL resource, wherein the dynamic signaling information is not configured to indicate UL for i) the static DL resource configured through the system information and is not configured to indicate DL for ii) the static UL resource configured through the system information, and wherein, in a case where a) the UE receives a single control channel including DL scheduling information for multiple TTIs and b) the DL scheduling information schedules a physical downlink shared channel, PDSCH, reception over the multiple TTIs including a symbol which was configured as ii) the static UL resource: the UE does not perform the PDSCH reception related to the symbol configured as ii) the static UL resource. receiving system information including information regarding uplink/downlink, UL/DL, resource configuration for time divisional multiplexing, TDD; identifying, based on the information regarding the UL/DL resource configuration, i) a static DL resource at a beginning part of 14 symbols in a transmission time interval, TTI, ii) a static UL resource at an ending part of the 14 symbols in the TTI, and iii) a flexible resource between the static DL resource and the static UL resource; receiving dynamic signaling information regarding UL/DL indication for iii) the flexible resource and transmitting or receiving, based on the information regarding the UL/DL resource configuration and the dynamic signaling information, data (S602, S606) in the TTI, wherein the UE is configured to perform a periodic channel state information-reference signal, CSI-RS, reception, and to perform a periodic sounding reference signal, SRS, transmission, the UE performs the periodic CSI-RS reception based on i) the static DL resource other than ii) the static UL resource and the UE performs the periodic SRS transmission based on ii) the static UL resource other than i) the static DL resource, wherein the dynamic signaling information is not configured to indicate UL for i) the static DL resource configured through the system information and is not configured to indicate DL for ii) the static UL resource configured through the system information, and wherein, in a case where a) the UE receives a single control channel including DL scheduling information for multiple TTIs and b) the DL scheduling information schedules a physical downlink shared channel, PDSCH, reception over the multiple TTIs including a symbol which was configured as ii) the static UL resource: the UE does not perform the PDSCH reception related to the symbol configured as ii) the static UL resource. <EOS>