Method and apparatus for reporting channel state information

A base station (BS), comprising:

• a processor;
• and
• a transceiver operably coupled to the processor, the transceiver configured to:
• transmit a channel state information (CSI) request for one or more entity identities (IDs);
• transmit configuration information for an aperiodic CSI (A-CSI) trigger state;
• and
• receive one or more CSI reports based on or more CSI resources associated with the one or more entity IDs,
• wherein the one or more CSI resources associated with the one or more entity IDs are indicated based on the A-CSI trigger state and the configuration information, and
• wherein the one or more entity IDs correspond to at least one of:
• a physical cell ID (PCI), a CORESETPoolIndex value, a PCI index pointing to a PCI in a list of PCIs that are higher layer configured, a reference signal (RS) resource ID, a RS resource set ID, and a RS resource setting ID.

A method for operating a user equipment (UE), the method comprising:

• receiving a channel state information (CSI) request for one or more entity identities (IDs);
• receiving configuration information for an aperiodic CSI (A-CSI) trigger state;
• determining, based on the CSI request, the A-CSI trigger state;
• determining, based on the determined A-CSI trigger state and the configuration information, one or more CSI resources associated with the one or more entity IDs;
• and
• generating one or more CSI reports based on the determined one or more CSI resources associated with the one or more entity IDs,
• wherein the one or more entity IDs correspond to at least one of:
• a physical cell ID (PCI), a CORESETPoolIndex value, a PCI index pointing to a PCI in a list of PCIs that are higher layer configured to the UE, a reference signal (RS) resource ID, a RS resource set ID, and a RS resource setting ID.