Parameters for lattice reduction

A network entity for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• generate an indication of one or more of a performance-complexity tradeoff parameter value associated with a quantity of iterations and channel orthogonality for an algorithm for a lattice reduction of a first matrix for a downlink communication, a frequency domain granularity for the lattice reduction, or a time domain granularity for the lattice reduction;
• transmit the indication;
• and
• transmit the downlink communication.

A method of wireless communication performed by a user equipment (UE), comprising:

• obtaining one or more of a performance-complexity tradeoff parameter value associated with a quantity of iterations and channel orthogonality for an algorithm for a lattice reduction of a first matrix for a downlink communication, a frequency domain granularity for the lattice reduction, or a time domain granularity for the lattice reduction;
• receiving the downlink communication that corresponds to the first matrix;
• performing the lattice reduction to transfer the first matrix to a second matrix based at least in part on the one or more of the performance-complexity tradeoff parameter value, the frequency domain granularity, or the time domain granularity;
• and
• performing multiple-input-multiple-output detection of the downlink communication using the second matrix.

A method of wireless communication performed by a network entity, comprising:

• generating an indication of one or more of a performance-complexity tradeoff parameter value associated with a quantity of iterations and channel orthogonality for an algorithm for a lattice reduction of a first matrix for a downlink communication, a frequency domain granularity for the lattice reduction, or a time domain granularity for the lattice reduction;
• transmitting the indication;
• and
• transmitting the downlink communication.