Patent ID: 8427935

Claim:
A method of OFDM (Orthogonal Frequency Division Multiplex) signal transmission, said method comprising: for at least a first one of a plurality of OFDM symbols and a first set of data subcarriers: allocating at least one subcarrier for non-data, determining a representation of a weighting signal for a predetermined level of signal continuity over time based on a representation of an initial error signal, said representation of an initial error signal being determined from at least part of said first one of a plurality of OFDM symbols and at least part of a second one of said plurality of OFDM symbols, and modulating the at least one non-data subcarrier according to said representation of said weighting signal, wherein the first one and the second one of said plurality of OFDM symbols are time-consecutive, and the OFDM signal transmission comprises modulated at least one carrier from the set of data subcarriers and the modulated said at least one non-data subcarrier.