-1), where 0 L<14 - S and the PUSCH mapping type is set to Type A or Type B [15]. The permissible S and L combinations corresponding to PDSCH allocations are shown in Table 3.15. When the UE is configured with pusch - AggregationFactor > 1, the same symbol allocation is applied across the pusch - AggregationFacto consecutive slots and the PUSCH is limited to a single transmission layer. The UE repeats the transport block across pusch - Aggregation Factor consecutive slots applying the same symbol allocation in each slot [15]. 3.7.3.2 Resource Allocation in Frequency Domain A UE determines the frequency-domain resources on which it transmits or receives data by examining the resource-block allocation and BWP indicator fields in a DCI. The resource allocation fields determine the resources blocks in the active BWP on which data is transmitted. The gNB can signal the allocated resources to a UE using resource alloca- tion type 0 or type 1, which are conceptually similar to LTE resource allocation type 0 and type 2 with the difference that in LTE, the resource allocation signales the allocations across the carrier bandwidth, whereas in NR, the indication is relevant only for the active BWP. Resource allocation type 0 is a bitmap-based allocation scheme, indicating the set of resource blocks that the UE is supposed to receive in the downlink transmission where the size of the bitmap is equal to the number of resource blocks in the BWP. This would allow an arbitrary combination of resource blocks to be scheduled for the UE at the expense of a large control/signaling overhead and some downlink coverage issues for larger BWP sizes due to limited capacity of a single OFDM symbol. Consequently, there New Radio Access Physical Layer Aspects (Part 1) 401 Table 3.16: Nominal resource block group size P [15]. Bandwidth Part Size NPRB ,BWP(i) Configuration 1P Configuration 2P 37-72 73-144 145-275 Bitmap 1100 1110000000000001100 RBG18 RBG19 RBG20 RBG21 RBG22 RBG23 RBG24 Resource indication value Starting position Length PRB1 18 