Orthogonal multiple access and non-orthogonal multiple access

An apparatus for communication in a wireless communication system, the apparatus comprising:

• control-channel processing circuitry in a User Equipment (UE) configured to receive a transmission from a network node, the transmission comprising configuration information for frequency domain spectral shaping (FDSS), wherein the configuration information comprises one or more parameters indicative of spectral shaping characteristics;
• Discrete Fourier Transform (DFT) circuitry configured to transform a plurality of data symbols into DFT spread data symbols;
• frequency-domain filter circuitry configured to apply a frequency domain window function to the DFT spread data symbols according to the one or more parameters, wherein the frequency domain window function modifies spectral characteristics of the DFT spread data symbols to produce modified DFT spread data symbols;
• and
• transmission circuitry configured to transmit an uplink transmission based on the modified DFT spread data symbols.

A User Equipment (UE) for communication in a wireless communication system, the apparatus comprising:

• a control-signal processor configured to receive a transmission from a network node, the transmission comprising configuration information for frequency domain spectral shaping (FDSS), wherein the configuration information comprises one or more parameters indicative of spectral shaping characteristics;
• a Discrete Fourier Transform (DFT) configured to transform a plurality of data symbols into DFT spread data symbols;
• a pulse-shaping filter configured to apply a frequency domain window function to the DFT spread data symbols according to the one or more parameters, wherein the frequency domain window function modifies spectral characteristics of the DFT spread data symbols to produce modified DFT spread data symbols;
• and
• an inverse DFT configured to generate an uplink discrete-time signal from the modified DFT spread data symbols.