Combined lattice reduction and per-stream recursive demapping demodulation

A method for wireless communication performed by a first wireless device, comprising:

• receiving a communication from a second wireless device, wherein the communication comprises a set of stream signals;
• and
• demodulating the communication based on a combination of lattice reduction (LR) and per-stream recursive demapping (PSRD), wherein demodulating the communication comprises:
• transforming a first subset of received stream signals in the set of stream signals to a complex integer domain (Z domain);
• processing, based on the LR, the first subset of received stream signals in the set of stream signals in the Z domain;
• and
• transforming the processed first subset of received stream signals in the set of stream signals in the Z domain to a set of X domain vectors in an X domain, each X domain vector in the set of X domain vectors corresponds to one or more received stream signals in the first subset of received stream signals.

An apparatus for wireless communication at a first wireless device, comprising:

• means for receiving a communication from a second wireless device, wherein the communication comprises a set of stream signals;
• means for demodulating the communication based on a combination of lattice reduction (LR) and per-stream recursive demapping (PSRD);
• means for transforming a first subset of received stream signals in the set of stream signals to a complex integer domain (Z domain);
• means for processing, based on the LR, the first subset of received stream signals in the set of stream signals in the Z domain;
• and
• means for transforming the processed first subset of received stream signals in the set of stream signals in the Z domain to a set of X domain vectors in an X domain, each X domain vector in the set of X domain vectors corresponds to one or more received stream signals in the first subset of received stream signals.

A non-transitory computer-readable medium storing computer executable code at a first wireless device, the code when executed by at least one processor causes the at least one processor to:

• receive a communication from a second wireless device, wherein the communication comprises a set of stream signals;
• and
• demodulate the communication based on a combination of lattice reduction (LR) and per-stream recursive demapping (PSRD), wherein to demodulate the communication based on the LR and the PSRD, the code when executed by the at least one processor causes the at least one processor to:
• transform a first subset of received stream signals in the set of stream signals to a complex integer domain (Z domain);
• process, based on the LR, the first subset of received stream signals in the set of stream signals in the Z domain;
• and
• transform the processed first subset of received stream signals in the set of stream signals in the Z domain to a set of X domain vectors in an X domain, each X domain vector in the set of X domain vectors corresponds to one or more received stream signals in the first subset of received stream signals.