Paging indication of channel state information reference signal resources for beam refinement for a random access channel procedure

A base station for wireless communication, comprising:

• memory;
• and
• one or more processors, coupled to the memory, configured to:
• transmit a paging message that includes an indication of a set of resources corresponding to a channel state information (CSI)-reference signal (CSI-RS) associated with a plurality of refined sub-beams of a synchronization signal block (SSB) beam;
• transmit the CSI-RS using the set of resources indicated in the paging message;
• and
• receive, in a transmission associated with a physical random access channel (PRACH), an indication of a selected sub-beam of the plurality of refined sub-beams.

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

• receiving a paging message that includes an indication of a set of resources corresponding to a channel state information (CSI)-reference signal (CSI-RS) associated with a plurality of refined sub-beams of a synchronization signal block (SSB) beam;
• receiving the CSI-RS based on the indication included in the paging message;
• and
• transmitting, in a transmission associated with a physical random access channel (PRACH), an indication of a selected sub-beam of the plurality of refined sub-beams.

A method of wireless communication performed by a base station, comprising:

• transmitting a paging message that includes an indication of a set of resources corresponding to a channel state information (CSI)-reference signal (CSI-RS) associated with a plurality of refined sub-beams of a synchronization signal block (SSB) beam;
• transmitting the CSI-RS using the set of resources indicated in the paging message;
• and
• receiving, in a transmission associated with a physical random access channel (PRACH), an indication of a selected sub-beam of the plurality of refined sub-beams.