CPC H04L 27/2613 (2013.01) [H04L 1/0003 (2013.01); H04L 5/0051 (2013.01); H04L 27/106 (2013.01); H04L 27/2607 (2013.01); H04L 27/2628 (2013.01); H04W 52/0229 (2013.01); H04W 68/005 (2013.01); H04L 5/0048 (2013.01)] | 10 Claims |
1. A method, comprising:
cutting and cropping a reference signal waveform at sections of the reference signal waveform mapped to cyclic extensions of OFDM symbols of a sequence of OFDM symbols, to obtain reference signal waveform segments, the reference signal waveform and the reference waveform segments being defined in accordance with a non-coherent modulation scheme,
wherein the method further comprises for each one of the reference signal waveform segments:
shaping the respective reference signal waveform segment to obtain a respective at least one signal waveform associated with one or more subcarriers of a plurality of subcarriers,
inputting the respective at least one signal waveform to at least one corresponding channel of a multi-channel orthogonal frequency division multiplex, OFDM, modulator, and
transmitting a respective OFDM symbol (s) of the sequence of OFDM symbols output by the OFDM modulator,
wherein said shaping approximates a baseband representation of a part of the OFDM symbol associated with the one or more subcarriers to the reference signal waveform segment.
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