Interference management for dynamic spectrum sharing

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

• one or more memories storing processor-executable code;
• and
• one or more processors coupled with the one or more memories and operable to execute the code to cause the apparatus to:
• compare first decoding statistics for a reference signal and second decoding statistics for a data transmission corresponding to a time-localized impact, a result of the comparison indicating that a first network entity associated with a first radio access technology is unloaded, the first decoding statistics and the second decoding statistics comprising one or more of a block error rate or a decoding iteration count corresponding to a code block;
• measure, based at least in part on the first network entity associated with the first radio access technology being unloaded, an interference associated with the first network entity over a portion of a radio frequency spectrum that is shared with a second network entity in communication with the UE and associated with a second radio access technology;
• update, for one or more resource elements corresponding to the interference associated with the first network entity, a diagonal load in a noise covariance matrix according to a higher value between a default diagonal load, a difference between a first reference signal received power associated with the first network entity and a second reference signal received power associated with the second network entity, and an inverse of an effective signal-to-noise ratio, the effective signal-to-noise ratio based at least in part on an allocated modulation and coding scheme associated with the second network entity, and the updating based at least in part on the measured interference and the first network entity being unloaded;
• and
• communicate with the second network entity based at least in part on updating the diagonal load in the noise covariance matrix.

A non-transitory computer-readable medium storing code for wireless communications at a user equipment (UE), the code comprising instructions executable by one or more processors to:

• compare first decoding statistics for a reference signal and second decoding statistics for a data transmission corresponding to a time-localized impact, a result of the comparison indicating that a first network entity associated with a first radio access technology is unloaded, the first decoding statistics and the second decoding statistics comprising one or more of a block error rate or a decoding iteration count corresponding to a code block;
• measure, based at least in part on the first network entity associated with the first radio access technology being unloaded, an interference associated with the first network entity over a portion of a radio frequency spectrum that is shared with a second network entity in communication with the UE and associated with a second radio access technology;
• update, for one or more resource elements corresponding to the interference associated with the first network entity, a diagonal load in a noise covariance matrix according to a higher value between a default diagonal load, a difference between a first reference signal received power associated with the first network entity and a second reference signal received power associated with the second network entity, and an inverse of an effective signal-to-noise ratio, the effective signal-to-noise ratio based at least in part on an allocated modulation and coding scheme associated with the second network entity, and the updating based at least in part on the measured interference and the first network entity being unloaded;
• and
• communicate with the second network entity based at least in part on updating the diagonal load in the noise covariance matrix.

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

• means for comparing first decoding statistics for a reference signal and second decoding statistics for a data transmission corresponding to a time-localized impact, a result of the comparison indicating that a first network entity associated with a first radio access technology is unloaded, the first decoding statistics and the second decoding statistics comprising one or more of a block error rate or a decoding iteration count corresponding to a code block;
• means for measuring, based at least in part on the first network entity associated with the first radio access technology being unloaded, an interference associated with the first network entity over a portion of a radio frequency spectrum that is shared with a second network entity in communication with the UE and associated with a second radio access technology;
• means for updating, for one or more resource elements corresponding to the interference associated with the first network entity, a diagonal load in a noise covariance matrix according to a higher value between a default diagonal load, a difference between a first reference signal received power associated with the first network entity and a second reference signal received power associated with the second network entity, and an inverse of an effective signal-to-noise ratio, the effective signal-to-noise ratio based at least in part on an allocated modulation and coding scheme associated with the second network entity, and the updating based at least in part on the measured interference and the first network entity being unloaded;
• and
• means for communicating with the second network entity based at least in part on updating the diagonal load in the noise covariance matrix.