A signal configuration method, performed by a network device, the method comprising: determining (S302, S703) configuration information for transmitting a sounding reference signal, SRS; sending an SRS request to the terminal device; and sending (S303, S704) the configuration information to the terminal device, for instructing the terminal device to switch, based on the configuration information and the SRS request, from a first carrier to a second carrier to transmit the SRS; wherein a start slot location on the second carrier for transmission of the SRS is determined based on slot information comprised in the configuration information, a numerology of the second carrier and a radio frequency capability parameter of the terminal device; and/or a start symbol location on the second carrier for transmission of the SRS is determined based on symbol information comprised in the configuration information, a numerology of the second carrier and a radio frequency capability parameter of the terminal device; wherein the radio frequency capability parameter of the terminal device comprises a calibration time or a tuning time of the terminal device and wherein the configuration information comprises at least one of the symbol information and the slot information and wherein a communications parameter of the first carrier and a communications parameter of the second carrier are the same or different, the communications parameter of the first carrier is a numerology of the first carrier and the communications parameter of the second carrier is a numerology of the second carrier, and the communications parameter comprises a subcarrier spacing and/or a waveform parameter. determining (S302, S703) configuration information for transmitting a sounding reference signal, SRS; sending an SRS request to the terminal device; and sending (S303, S704) the configuration information to the terminal device, for instructing the terminal device to switch, based on the configuration information and the SRS request, from a first carrier to a second carrier to transmit the SRS; wherein a start slot location on the second carrier for transmission of the SRS is determined based on slot information comprised in the configuration information, a numerology of the second carrier and a radio frequency capability parameter of the terminal device; and/or a start symbol location on the second carrier for transmission of the SRS is determined based on symbol information comprised in the configuration information, a numerology of the second carrier and a radio frequency capability parameter of the terminal device; wherein the radio frequency capability parameter of the terminal device comprises a calibration time or a tuning time of the terminal device and wherein the configuration information comprises at least one of the symbol information and the slot information and wherein a communications parameter of the first carrier and a communications parameter of the second carrier are the same or different, the communications parameter of the first carrier is a numerology of the first carrier and the communications parameter of the second carrier is a numerology of the second carrier, and the communications parameter comprises a subcarrier spacing and/or a waveform parameter.