Reflection modulation via subcarrier indices

A second wireless device, 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 device to:
• output, via a first wireless device to a third wireless device, an incident signal comprising one or more initial energy-bearing resource elements;
• and
• output, to at least one of the first wireless device or the third wireless device, an indication of a subcarrier data mapping, the subcarrier data mapping corresponding to a set of data associated with the first wireless device.

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

• obtaining an incident signal;
• selecting a chip rate according to a subcarrier data mapping;
• generating a reflected signal in accordance with a periodic load switching pattern applied to the incident signal at a frequency corresponding to the selected chip rate;
• and
• outputting the reflected signal, wherein a first subset of resource elements of the reflected signal are energy-bearing resource elements that satisfy the subcarrier data mapping, and a second subset of resource elements of the reflected signal are non-energy-bearing resource elements that satisfy the subcarrier data mapping.