finitions only cover contiguous transmissions. To allow more flexibility for network operation, the concept of almost contiguous allocation was introduced in 3GPP RAN4, enabling CP-OFDM uplink transmission to be non-contiguous with some restrictions. An uplink transmission is considered to be an almost contiguous allocation if it satisfies the following constraints: NRB_gap/(NRB_alloc + NRB_gap) 0.25 and NRB_gap larger than 106, 51, or 24 RBs for 15, 30, or 60 kHz SCS, respectively, where NRB_gap is the total number of unallocated RBs inside the allocated RBs, and NRB_alloc is the total PA output power 27 dBm@ 40% PA output power 27 dBm / efficiency 22 1250 mW with post-PA loss SNR gain -14.5% MPR (QPSK inner): 1.6 dB 1.5 dB 4 dB post-PA 4 dB post-PA 25.5 dBm RF-FE losses RF-FE losses 25.4 dBm@ 33% 22 1070 m W PC3 antenna PC3 antenna 23 dBm 23 dBm output power output power DFT-S-OFDM CP-OFDM QPSK DFT-S-OFDM QPSK CP-OFDM Inner RB allocations Inner RB allocations Figure 12.13 Combined impact of reduced MPR for CP-OFDM QPSK inner RB allocations and SNR UL gain on PA power consumption in a power class 3 UE. 12.4 5G Standalone Performance Aspects in mmWave Frequency Range 2 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 NRB_gap/(NRB_alloc +NRB_gap) Figure 12.14 A-MPR Additional MPR for almost contiguous allocations. number of allocated RBs. For these signals, the MPR can be increased by CEIL (10 logo + NRB_gap/NRB_alloc), 0.5) dB; see Figure 12.14. 12.4 5G Standalone Performance Aspects in mmWave Frequency Range 2 12.4.1 Channel Bandwidths and SU The new spectrum available in FR2 with bands offering more than 1 GHz total band- width requires channel bandwidths up to 400 MHz. As can be seen from the header of Table 12.5, a few channel bandwidths from 100 to 400 MHz are specified. In order to accommodate that, valid SCSs are 60 and 120 kHz. Similar to FR1, the minimum and maximum channel bandwidth realizable for a given SCS are dictated by the maximum FFT size and synchronization channel bandwidth: The maximum FFT size of 40