A method of transmitting a signal by a user equipment, UE, in a wireless communication system, the method comprising: transmitting a physical signal in first symbols, wherein the physical signal is transmitted via a physical uplink shared channel, PUSCH, or the physical signal is transmitted via a physical uplink control channel, PUCCH, wherein a quadrature phase shift keying, QPSK, is applied to the physical signal, and wherein a demodulation reference signal, DM-RS is transmitted for the physical signal; and performing a process of transmitting sound reference signals, SRSs, in second symbols, wherein the SRSs are for one beam refinement in a time domain with a base station, BS, wherein the first symbols and the second symbols are orthogonal frequency division multiplexing, OFDM symbols, wherein the physical signal is transmitted in the first symbols of a first cell and the SRSs are transmitted in the second symbols of a second cell, wherein the first cell and the second cell are included in an uplink bandwidth for the UE, and the first cell and the second cell have different frequency range to each other, wherein a first subcarrier spacing, SCS, is used for the first cell and a second SCS is used for the second cell, wherein the first SCS is not larger than the second SCS, wherein a sum of a transmission power of the physical signal and of the transmission powers of the SRSs are greater than a maximum transmission power of the UE, wherein, based on the physical signal having a lower priority than the SRSs, the transmission power of the physical signal is reduced in all of the first symbols when the DM-RS is overlapped with a SRS among the SRSs in the time domain, and the transmission power of the physical signal is reduced in an overlapped symbol when the DM-RS is not overlapped with the SRS in the time domain, wherein, in cases where the physical signal has the lower priority than the SRSs, the physical signal includes only channel state information, CSI, wherein, based on the physical signal having a higher priority than the SRSs, the transmission powers of the SRSs are reduced equally when the physical signal is overlapped with the SRS in the time domain, wherein, in cases where the physical signal has the higher priority than the SRSs, the physical signal includes acknowledgement/negative acknowledgement, ACK/NACK, information or the physical signal includes scheduling request, SR, information, or the physical signal includes ACK/NACK information and SR information, or physical signal includes ACK/NACK information and CSI, or physical signal includes SR information and CSI, or physical signal includes ACK/NACK information and SR information and CSI, wherein the SRSs have different transmission, TX, and reception, RX, beam directions in each symbol of the second symbols. transmitting a physical signal in first symbols, wherein the physical signal is transmitted via a physical uplink shared channel, PUSCH, or the physical signal is transmitted via a physical uplink control channel, PUCCH, wherein a quadrature phase shift keying, QPSK, is applied to the physical signal, and wherein a demodulation reference signal, DM-RS is transmitted for the physical signal; and performing a process of transmitting sound reference signals, SRSs, in second symbols, wherein the SRSs are for one beam refinement in a time domain with a base station, BS, wherein the first symbols and the second symbols are orthogonal frequency division multiplexing, OFDM symbols, wherein the physical signal is transmitted in the first symbols of a first cell and the SRSs are transmitted in the second symbols of a second cell, wherein the first cell and the second cell are included in an uplink bandwidth for the UE, and the first cell and the second cell have different frequency range to each other, wherein a first subcarrier spacing, SCS, is used for the first cell and a second SCS is used for the second cell, wherein the first SCS is not larger than the second SCS, wherein a sum of a transmission power of the physical signal and of the transmission powers of the SRSs are greater than a maximum transmission power of the UE, wherein, based on the physical signal having a lower priority than the SRSs, the transmission power of the physical signal is reduced in all of the first symbols when the DM-RS is overlapped with a SRS among the SRSs in the time domain, and the transmission power of the physical signal is reduced in an overlapped symbol when the DM-RS is not overlapped with the SRS in the time domain, wherein, in cases where the physical signal has the lower priority than the SRSs, the physical signal includes only channel state information, CSI, wherein, based on the physical signal having a higher priority than the SRSs, the transmission powers of the SRSs are reduced equally when the physical signal is overlapped with the SRS in the time domain, wherein, in cases where the physical signal has the higher priority than the SRSs, the physical signal includes acknowledgement/negative acknowledgement, ACK/NACK, information or the physical signal includes scheduling request, SR, information, or the physical signal includes ACK/NACK information and SR information, or physical signal includes ACK/NACK information and CSI, or physical signal includes SR information and CSI, or physical signal includes ACK/NACK information and SR information and CSI, wherein the SRSs have different transmission, TX, and reception, RX, beam directions in each symbol of the second symbols.