Abstract: A method for generating a transport stream intended to be distributed to a plurality of broadcast sites. The method includes: modulating a source signal, delivering a modulated signal; sampling the modulated signal, delivering a stream of complex samples; and framing the stream of complex samples, delivering the transport stream, wherein the framing includes: dividing the stream of complex samples into frames; inserting, in each frame, time information associated with the group of successive complex samples making up the frame for the time synchronization of the broadcasting sites.

Abstract: A method is provided for generating a delay in the transmission of a multicarrier signal formed by a time-dependent series of symbols, in which the symbols include a set of complex time-dependent samples, in which each symbol includes a useful part and a guard time. The method includes the following steps: writing the samples forming the multicarrier signal in a memory; reading the memory with a variable latency corresponding to the delay; and modifying the variable latency by duplicating or suppressing at least one sample contained in a guard time.