Transmitting apparatus for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least two signalling patterns adjacent to each other in the frequency direction and data patterns following the at least two signalling patterns in the time direction in the time slot immediately succeeding the time slot in which the at least two signalling patterns are located, wherein each of the data patterns succeeding the at least two signalling patterns is respectively followed by further data patterns in succeeding time slots in the time direction, wherein all data patterns following each other in the time direction have the same frequency direction structure, each of the at least two signalling patterns and the data patterns comprising a plurality of frequency carriers, said transmitting apparatus comprising - frame forming means adapted to arrange signalling data and pilot signals in each of said at least two signalling patterns in a frame, each signalling pattern having the same length, wherein all signalling patterns in a frame comprise identical signalling data, said signalling data comprising the physical layer information necessary for the receipt of the succeeding data patterns, whereby the signalling data are repeated in each of said at least two signalling patterns so that the identical signalling data can be retrieved from each of said at least two signalling patterns to enable a receiving apparatus that is configured to receive only a part of the entire transmission bandwidth of the frame to obtain all signalling data and whereby the pilot signals are arranged in each of said at least two signalling patterns in a frame to enable a receiving apparatus to perform channel estimation, and to arrange data in said data patterns in a frame, - a scrambler for scrambling the signalling data by use of a unique scrambling sequence, - transforming means adapted to transform said signalling patterns and said data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and - transmitting means adapted to transmit said time domain transmission signal. - frame forming means adapted to arrange signalling data and pilot signals in each of said at least two signalling patterns in a frame, each signalling pattern having the same length, wherein all signalling patterns in a frame comprise identical signalling data, said signalling data comprising the physical layer information necessary for the receipt of the succeeding data patterns, whereby the signalling data are repeated in each of said at least two signalling patterns so that the identical signalling data can be retrieved from each of said at least two signalling patterns to enable a receiving apparatus that is configured to receive only a part of the entire transmission bandwidth of the frame to obtain all signalling data and whereby the pilot signals are arranged in each of said at least two signalling patterns in a frame to enable a receiving apparatus to perform channel estimation, and to arrange data in said data patterns in a frame, - a scrambler for scrambling the signalling data by use of a unique scrambling sequence, - transforming means adapted to transform said signalling patterns and said data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and - transmitting means adapted to transmit said time domain transmission signal.