This is because of ENDC (E-UTRAN New Radio – Dual Connectivity) as carriers transition to SA (Stand Alone) in 5G.<p>Back in the LTE days, you only had one transmitter. With ENDC in 5G, you have two transmitters, one LTE as an anchor and another for 5G.<p>The sooner we get to SA, we can drop the LTE anchor and go back to a single 5G TX with however many DLCA bands you want for UEs.<p>Twice the transmitters, twice the current = worse battery life.