CP-transparent OOK OFDM waveform for an ambient IoT

A method operable at an ambient Internet of Things (IoT) device, the method comprising:

• receiving an on-off keying (OOK) orthogonal frequency-division multiplexing (OFDM) waveform including a cyclic prefix (CP) and a control bit to indicate decoding of the received OOK OFDM waveform for data;
• sampling symbols of the received OOK OFDM waveform at a pre-defined sampling rate, wherein, the pre-defined sampling rate is based upon a pre-defined duration of the symbols of the received OOK OFDM waveform, the pre-defined duration of each of the symbols of the received OOK OFDM waveform defined such that a last OOK OFDM symbol duration is set to be the same as a first OOK OFDM symbol duration, wherein the first OOK OFDM symbol includes the CP;
• and
• based upon the received control bit to indicate decoding of the received OOK OFDM waveform for data, applying decoding of the received OOK OFDM waveform at the pre-defined sampling rate.

An ambient Internet of Things (IoT) device, comprising:

• means for receiving an on-off keying (OOK) orthogonal frequency-division multiplexing (OFDM) waveform including a cyclic prefix (CP) and a control bit to indicate decoding of the received OOK OFDM waveform for data;
• means for sampling symbols of the received OOK OFDM waveform at a pre-defined sampling rate, wherein, the pre-defined sampling rate is based upon a pre-defined duration of the symbols of the received OOK OFDM waveform, the pre-defined duration of each of the symbols of the received OOK OFDM waveform defined such that a last OOK OFDM symbol duration is set to be the same as a first OOK OFDM symbol duration, wherein the first OOK OFDM symbol includes the CP;
• and
• means for applying decoding of the received OOK OFDM waveform at the pre-defined sampling rate based upon the received control bit to indicate decoding of the received OOK OFDM waveform for data.