Fractional band self-interference cancellation for full-duplex communications

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

• identifying one or more fractional bands in relation to a bandwidth associated with full-duplex (FD) communication, each fractional band in the one or more fractional bands being a fraction of the bandwidth;
• sampling at least one signal at the one or more fractional bands;
• estimating one or more self-interference cancellation (SIC) coefficients based on the at least one signal;
• and
• performing SIC for the bandwidth associated with the FD communication based on the estimated one or more SIC coefficients.

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

• means for identifying one or more fractional bands in relation to a bandwidth associated with full-duplex (FD) communication, each fractional band in the one or more fractional bands being a fraction of the bandwidth;
• means for sampling at least one signal at the one or more fractional bands;
• means for estimating one or more self-interference cancellation (SIC) coefficients based on the at least one signal;
• and
• means for performing SIC for the bandwidth associated with the FD communication based on the estimated one or more SIC coefficients.

A computer-readable medium storing computer executable code at a user equipment (UE), the code when executed by a processor causes the processor to:

• identify one or more fractional bands in relation to a bandwidth associated with full-duplex (FD) communication, each fractional band in the one or more fractional bands being a fraction of the bandwidth;
• sample at least one signal at the one or more fractional bands;
• estimate one or more self-interference cancellation (SIC) coefficients based on the at least one signal;
• and
• perform SIC for the bandwidth associated with the FD communication based on the estimated one or more SIC coefficients.