ucts that can be clearly distinguished. The power spectral density of these IMD products is approximately 10 to 20 dB higher than in the previous case, resulting in a moderate MSD increase. In Release 15, 4 MSD TPs have been adopted to ensure good understanding of UE behavior when operated at or near to its maximum output power: the first three TPs correspond to Figure 12.19 (left) with the MSD ranging from 1.6 to 1.8 dB, while the fourth TP ensures that the MSD is measured with the largest possible frequency gap: i.e. LTE RBs and 5G RBs are positioned at their lowest and highest frequency offset, respectively. In this case, the LTE and 5G downlink carriers are impacted by IMD 5 and IMD 7 products, leading to 17 dB and 29 dB desense for LTE and 5G, respectively. It is worth noting that for these allocations, an IMD5 product falls in the band 12 downlink frequency band for which the UE is allowed to use an additional maximum power reduction to meet band 12 protection limits. For LTE/5G power sharing and A-MPR evaluation, the situation is nearly as severe, with the added complexity that both analyses are more complicated. A-MPR evaluation consists in sweeping the 5G carrier power, denoted by "PNR," for a given LTE uplink transmit power, denoted by "PLTE" For each PNR/PLTE pair, the resulting IMD product must be evaluated through simulation or measurements to ensure that all the emission requirements for this band are met, that is, ACLR, SEM, general spurious emissions, and Band 12 and Band 29 neighbor band protection. The power sweep is stopped as soon as one of these gating factors is violated. This work needs to be repeated for all combina- tions of LTE and 5G RB allocations (size and offset position), each CBW combination, and each waveform type, that is, creating a multimillion point search space. Figure 12.20 (left) shows the results of both simulation [15] and measurements data collected for NR 15 MHz/LTE 5 MHz CBW and plots the 5G transmit power back-off (A-MPR) to pass emissions requirements VS. PLTE VS. th