Channel state information reference signal configurations for dynamic antenna port adaptation

A method for wireless communication at a network entity, comprising:

• outputting a channel state information report configuration message indicating a plurality of codebook configurations associated with a plurality of antenna port configurations;
• obtaining a channel state information report indicating one or more codebook configurations of the plurality of codebook configurations, wherein channel state information included in the channel state information report is determined based at least in part on the one or more codebook configurations;
• and
• communicating with a user equipment (UE) based at least in part on the channel state information report indicating the one or more codebook configurations.

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

• a processor;
• and
• a memory coupled with the processor, with instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to:
• receive a channel state information report configuration message indicating a plurality of codebook configurations associated with a plurality of antenna port configurations;
• transmit a channel state information report indicating one or more codebook configurations of the plurality of codebook configurations, wherein channel state information included in the channel state information report is based at least in part on the one or more codebook configurations;
• and
• communicate with a network entity based at least in part on the channel state information report indicating the one or more codebook configurations.

An apparatus for wireless communication at a network entity, comprising:

• a processor;
• and
• a memory coupled with the processor, with instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to:
• output a channel state information report configuration message indicating a plurality of codebook configurations associated with a plurality of antenna port configurations;
• obtain a channel state information report indicating one or more codebook configurations of the plurality of codebook configurations, wherein channel state information included in the channel state information report is determined based at least in part on the one or more codebook configurations;
• and
• communicate with a user equipment (UE) based at least in part on the channel state information report indicating the one or more codebook configurations.