Method for synchronisation between a transmit unit and at least one receive unit with multi-carrier signal transmission via a transmit channel, wherein a large number of carrier frequencies is used for a signal transmission with multi-carrier signal transmission; comprising the following steps: - generating a synchronisation symbol using predefined carrier frequencies in the frequency range; - generating a synchronisation signal by modulation of the generated synchronisation symbol with a predefined synchronisation sequence by way of the transmit unit, wherein a temporal duration of the synchronisation signal corresponds to a duration of the synchronisation symbol multiplied by a length of the predefined synchronisation sequence; - emission of the synchronisation signal by the transmit unit with a predefinable repetition period, wherein the synchronisation signal is used for transmission of an item of transmit-specific status information and wherein a change in amplitude and/or polarity of the synchronisation signal is carried out for the transmission of the transmit-specific status information; - following transmission by way of the transmit channel, receipt of a signal by the receive unit, wherein the received signal is formed by the synchronisation signal emitted repeatedly with the predefinable repetition period; and - detecting and evaluating the received signal by means of a detection algorithm, which is based on a delay and correlation algorithm, by way of the receive unit, wherein the detection algorithm determines a period of the received signal as the synchronisation instant, a period of the received signal is used continuously in the receive unit in each case, a respective average value weighted with the predefined synchronisation sequence is formed as what is known as a respective master symbol for the respective period of the received signal, the respective master symbol is modulated with the predefined synchronisation sequence and correlated with the respective period of the received signal, and a value (w m) determined in such a way is used and evaluated as a measure of a probability to determine whether the synchronisation signal is present in the respective period. - generating a synchronisation symbol using predefined carrier frequencies in the frequency range; - generating a synchronisation signal by modulation of the generated synchronisation symbol with a predefined synchronisation sequence by way of the transmit unit, wherein a temporal duration of the synchronisation signal corresponds to a duration of the synchronisation symbol multiplied by a length of the predefined synchronisation sequence; - emission of the synchronisation signal by the transmit unit with a predefinable repetition period, wherein the synchronisation signal is used for transmission of an item of transmit-specific status information and wherein a change in amplitude and/or polarity of the synchronisation signal is carried out for the transmission of the transmit-specific status information; - following transmission by way of the transmit channel, receipt of a signal by the receive unit, wherein the received signal is formed by the synchronisation signal emitted repeatedly with the predefinable repetition period; and - detecting and evaluating the received signal by means of a detection algorithm, which is based on a delay and correlation algorithm, by way of the receive unit, wherein the detection algorithm determines a period of the received signal as the synchronisation instant, a period of the received signal is used continuously in the receive unit in each case, a respective average value weighted with the predefined synchronisation sequence is formed as what is known as a respective master symbol for the respective period of the received signal, the respective master symbol is modulated with the predefined synchronisation sequence and correlated with the respective period of the received signal, and a value (w m) determined in such a way is used and evaluated as a measure of a probability to determine whether the synchronisation signal is present in the respective period.