Configuring channel state information reference signal subband precoding resource block groups

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
• receive a signaling communication that includes information specifying whether a channel state information reference signal (CSI-RS) precoding resource block group includes a same quantity of resource blocks (RBs) that is included in a CSI reporting subband configured for the UE,
• wherein the CSI-RS precoding resource block group enables the UE to perform a channel estimation based at least in part on a CSI-RS transmitted by a base station;
• and
• perform the channel estimation based at least in part on the CSI-RS transmitted by the base station,
• wherein the channel estimation is based at least in part on whether the CSI-RS precoding resource block group includes the same quantity of RBs that is included in the CSI reporting subband configured for the UE.

A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

• one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:
• receive a signaling communication that includes information specifying whether a channel state information reference signal (CSI-RS) precoding resource block group includes a same quantity of resource blocks (RBs) that is included in a CSI reporting subband configured for the UE,
• wherein the CSI-RS precoding resource block group enables the UE to perform a channel estimation based at least in part on a CSI-RS transmitted by a base station;
• and
• perform the channel estimation based at least in part on the CSI-RS transmitted by the base station,
• wherein the channel estimation is based at least in part on whether the CSI-RS precoding resource block group includes the same quantity of RBs that is included in the CSI reporting subband configured for the UE.

An apparatus for wireless communication, comprising:

• means for receiving a signaling communication that includes information specifying whether a channel state information reference signal (CSI-RS) precoding resource block group includes a same quantity of resource blocks (RBs) that is included in a CSI reporting subband configured for the apparatus,
• wherein the CSI-RS precoding resource block group enables the apparatus to perform a channel estimation based at least in part on a CSI-RS transmitted by a base station;
• and
• means for performing the channel estimation based at least in part on the CSI-RS transmitted by the base station,
• wherein the channel estimation is based at least in part on whether the CSI-RS precoding resource block group includes the same quantity of RBs that is included in the CSI reporting subband configured for the apparatus.