Non-orthogonal multiple access hopping pattern techniques for spreading sequences

An apparatus for wireless communication at a user equipment (UE), comprising:

• a processor,
• memory coupled to the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify a hopping pattern for applying sequences of two or more multiple access signatures to different portions of an uplink communication to a base station;
• apply the sequences of two or more multiple access signatures to the different portions of the uplink communication based at least in part on the identifying;
• and
• transmit the uplink communication to the base station.

An apparatus for wireless communication at a base station, comprising:

• a processor,
• memory coupled to the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify a plurality of user equipment (UEs) configured for concurrent uplink non-orthogonal multiple access communications;
• and
• transmit, to the plurality of UEs, an indication of a multiple access signature to be applied to uplink communications of each UE of the plurality of UEs, wherein the multiple access signature for each UE is based at least in part on a sequence of spreading codes and a hopping pattern applied to the sequence of spreading codes for different portions of uplink communications.