Devices and methods for facilitating a non-orthogonal underlay in wireless communications systems

A method operational on a wireless communication device, comprising:

• receiving a wireless transmission comprising a first signal from a first wireless device on a particular time and frequency resource, the first signal transmitted with a first type of modulation for orthogonal wireless communication, and a second signal from a second wireless device on the particular time and frequency resource, the second signal transmitted with a second type of modulation that is non-orthogonal to the first type of modulation;
• decoding the first signal from the wireless transmission;
• removing the first signal from the wireless transmission to obtain a resulting signal;
• and
• decoding the resulting signal.

A wireless communication device, comprising:

• means for receiving a wireless transmission comprising a first signal from a first wireless device on a particular time and frequency resource, the first signal transmitted with a first type of modulation for orthogonal wireless communication, and a second signal from a second wireless device on the particular time and frequency resource, the second signal transmitted with a second type of modulation that is non-orthogonal to the first type of modulation;
• and
• means for decoding the first signal and the second signal, wherein the means for decoding the first signal and the second signal comprises:
• means for decoding the first signal from the wireless transmission;
• means for removing the first signal from the wireless transmission to obtain a resulting signal;
• and
• means for decoding the resulting signal.

A non-transitory processor-readable storage medium storing processor-executable programming for causing a processing circuit to:

• receive a wireless transmission comprising a first signal from a first wireless device on a particular time and frequency resource, the first signal transmitted with a first type of modulation for orthogonal wireless communication, and a second signal from a second wireless device on the particular time and frequency resource, the second signal transmitted with a second type of modulation that is non-orthogonal to the first type of modulation;
• decode the first signal from the wireless transmission;
• remove the first signal from the wireless transmission to obtain a resulting signal;
• and
• decode the resulting signal.

A wireless communication device, comprising:

• a receiver circuit;
• and
• a processing circuit coupled to the receiver circuit, the processing circuit adapted to
• receive via the receiver circuit a wireless transmission on a particular time and frequency resource, the wireless transmission comprising a first signal from a first wireless device and an underlay second signal from a second wireless device, wherein the first signal is transmitted with an orthogonal frequency division multiplexing (OFDM) modulation, and the underlay second signal is transmitted with a code division multiplexing (CDM) modulation,
• decode the first signal from the wireless transmission;
• remove the first signal from the wireless transmission to obtain a resulting signal;
• and
• decode the resulting signal.