used for PUSCH transmission when transform precoding is disabled. The uplink resource allocation type 1 is used for PUSCH transmission regardless of whether transform precoding is enabled or disabled. The UE can assume that when the scheduling PDCCH is received with DCI format 0_0, then uplink resource allocation type 1 is used. If a BWP indicator field is not configured in the scheduling DCI, the RB indexing for uplink type 0 and type 1 resource allocation is determined within the UE's active BWP. If a BWP indicator field is configured in the scheduling DCI, then the RB indexing for uplink type 0 and type 1 resource allocation is determined within the UE's BWP indicated by BWP indicator field value in the DCI. Upon detection of PDCCH intended for the UE, the UE must first deter- mine the uplink BWP and then the resource allocation within the BWP [15]. The uplink resource allocation type 0 is similar to the downlink counterpart, where the resource block assignment information includes a bitmap indicating the RBGs that are New Radio Access Physical Layer Aspects (Part 1) 403 allocated to the scheduled UE. The size of RBGs is given in Table 3.16. The uplink resource allocation type 1 is also similar to the downlink part described earlier, where the resource block assignment information informs the UE of a set of contiguously allocated noninterleaved virtual resource blocks within the active carrier BWP of size PRB BWP except for the case when DCI format 00 is decoded in any common search space in which case the size of the initial BWP NBWP(0) is used [15]. 3.7.3.3 Physical Resource Block Bundling A UE cannot make any assumption about correlation of reference signals between different PDSCH scheduling occasions in the time domain. This is necessary to allow more flexibility in precoder-based beamforming and spatial signal processing. In the frequency domain, however, the UE can assume that there is correlation between reference signals within a precoding resource block group (PRG). Over the frequency span of one PRG