GENERATION OF AN OFDM-BASED SINGLE CARRIER WAKE-UP SIGNAL

摘要

Orthogonal Frequency Division Multiplex and Non-Coherent Demodulation A method includes obtaining a reference signal waveform which is defined in accordance with a non-coherent modulation scheme. The method also includes shaping the reference signal waveform to obtain at least one signal waveform associated with one or more subcarriers of a plurality of subcarriers. The method also includes inputting the at least one signal waveform to at least one corresponding channel of a multi-channel orthogonal frequency division multiplex, OFDM, modulator. The method further includes transmitting an OFDM symbol output by the OFDM modulator. 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. For example, the reference signal waveform can be a reference wake-up signal waveform.