Question: What is the single-tone and multi-tone transmission minimum output power requirement for category NB1 and NB2 UE for channel bandwidth?
Option 1: -40 dBm
Option 2: -30 dBm
Option 3: -20 dBm
Option 4: -10 dBm
Explanation: According to the specifications, for category NB1 and NB2 UE, the single-tone and multi-tone transmission minimum output power requirement for the channel bandwidth is indeed -40 dBm. This ensures that the UE can transmit at a sufficient power level while maintaining efficient use of spectrum resources in the E-UTRA network.