Enhanced CSI reporting for multi-TRP operation

A method at a base station for enhanced channel state information (CSI) reporting, the method comprising:

• encoding a CSI reporting configuration associated with a first transmission and reception point (TRP) and a second TRP, the CSI reporting configuration including at least one codebook configuration, the at least one codebook including at least one of a rank restriction configuration or a codebook subset restriction (CBSR) configuration, the at least one of the rank restriction configuration or the CBSR configuration corresponding to at least one of a particular type of TRP measurement, a particular TRP of the first TRP or the second TRP, or channel measurement resources (CMRs) associated with at least one of the first TRP or the second TRP;
• wherein a first set of CMRs are configured for single-TRP measurements associated with the first TRP, a second set of CMRs are configured for single-TRP measurements associated with the second TRP, and a third set of CMRs are configured for multi-TRP measurements associated with both the first TRP and the second TRP;
• and
• decoding a CSI measurement communication received from a user equipment (UE), the CSI measurement communication being based on the CSI reporting configuration.

A method at a user equipment (UE) for enhanced channel state information (CSI) reporting, the method comprising:

• decoding a channel state information (CSI) reporting configuration associated with a first transmission and reception point (TRP) and a second TRP, the CSI reporting configuration being associated with a particular CSI measurement, the particular CSI measurement including a plurality of corresponding channel measurement resources (CMRs) and a plurality of corresponding interference measurement resources (IMRs);
• decoding one or more CSI resource communications including at least one of each of the plurality of corresponding CMRs or each of the plurality of corresponding IMRs, the one or more CSI resource communications being received during a single connected mode discontinuous reception (CDRX) active time period;
• and
• performing the particular CSI measurement using the plurality of corresponding CMRs or the plurality of corresponding IMRs.