ndicated by a field in DCI format 2_1 includes the last slot symb TINT21-HINI symbols prior to the first symbol of the CORESET in the slot. The parameter TINT is the PDCCH monitor- ing periodicity provided by a higher layer parameter, N slot symb is the number of symbols per slot, u is the subcarrier spacing configuration for a serving cell with mapping to a respective field in the DCI format 2_1, and HINT is the subcarrier spacing configuration of the down- link BWP where the UE receives the PDCCH conveying the DCI format 2_1. If the UE is configured with RRC parameter TDD-UL-DL-ConfigurationCommon the symbols desig- nated as uplink by the latter parameter are excluded from the last jsymb slot TINT2 HINT symbols prior to the first symbol of the CORESET in the slot. The resulting set of symbols includes a number of symbols that is denoted as NINT [8]. New Radio Access Physical Layer Aspects (Part 2) 455 The UE is further provided with the (preemption) indication granularity for the set of PRBs and OFDM symbols (within a slot) that might be preempted through RRC parameter timeFrequencySet. If the value of latter parameter is zero (time-domain preemption region boundary), the 14-bit bitmap in DCI format 2_1 has a one-to-one correspondence with 14 groups of consecutive symbols from the set of symbols where each of the first NINT - NINT/14 symbol groups includes NINT/14 symbols, each of the last 14 - NINT 14 NINT/14 symbol groups includes NINT/14 symbols, where bitmap, bit value of "0" indicates transmission to the UE in the corresponding symbol group and a bit value of "1" indicates no transmission to the UE in the corresponding symbol group [8,13]. Interpretation of the bitmap is configurable such that each bit represents one OFDM symbol in the time domain and the full bandwidth part, or two OFDM symbols in the time domain and one half of the bandwidth part. Furthermore, the monitoring periodicity of the preemption indi- cator is configured in the device every nth slot. An example is shown in Fig. 4.21 where UE1 ha