A control channel can schedule a DL data transmission for a BWP, allocate a set of RBs corresponding to the scheduled DL data, and indicate a first PRB bundling size for the scheduled DL data transmission. A transmitted DL data transmission can be based on each RB of a first PRG having a same precoding applied as other RB of the PRG. The first PRG can partition the BWP with the first PRB bundling size. The second PRG can partition the BWP with a determined second PRB bundling size. A CSI report including the calculated CSI can be received on an UL channel. CSI can be calculated based on at least one DMRS associated with the DL data transmission and based on each RB of a second PRG having a same precoding applied as other RBs of the second PRG.