Harmonic division multiplexing for reconfigurable intelligent surfaces

A second wireless communication device for wireless communication, comprising:

• one or more memories storing processor-executable code;
• and
• one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the second wireless communication device to:
• receive a signal from a first wireless communication device using a harmonic frequency, wherein the signal is based at least in part on a periodic coding sequence and is associated with a reconfigurable intelligent surface (RIS);
• and
• decode the signal based at least in part on the periodic coding sequence and the harmonic frequency.

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

• setting one or more parameters corresponding to one or more columns of a reconfigurable intelligent surface (RIS) based at least in part on a periodic coding sequence;
• transmitting a first signal to a second wireless communication device using a first harmonic frequency based at least in part on the one or more parameters;
• and
• transmitting a second signal to a third wireless communication device using a second harmonic frequency different from the first harmonic frequency based at least in part on the one or more parameters.