r classes for the NR devices operating in FR2, which are characterized by the transmit power and the spherical coverage as shown in Table 5.13. The UE power class 1 is meant for transportable terminals and allows a maximum TRP of 35 dBm compared to other UE power classes with maximum permitted TRP of 23 dBm. It 694 Chapter 5 assumes use cases where an equipment at fixed position is able to emit a strong signal with a narrow beam in a particular direction. The UE power class 2 is intended for vehicular use cases. The target for spherical coverage is 60% and the maximum TRP is the same as power class 3 for mobile terminals; however, it requires a higher EIRP value. The UE power class 3 is defined for mobile handsets where the orientation of the terminal antennas with respect to the BS is random. Therefore, the target for spherical coverage is 50%. The UE power class 4 requires wider spherical coverage (20%) and higher EIRP than power class 2. Since this type of the terminal can be installed with the knowledge of the location of the BS, in contrast to the narrow-beam operation of power class 1, it can be used more flexibly in the scenarios involving moving platforms such as vehicles and trains [29]. 5.3.2 Conducted and Radiated UE Transceiver Characteristics The radiated RF requirements for the NR devices are primarily derived from the corre- sponding conducted RF requirements. Unlike the conducted requirements, the radiated requirements are inclusive of the antennas, thus the emission levels such as BS output power and unwanted emissions are defined either by incorporating the antenna gain as a directional requirement using an EIRP or by defining limits using TRP. The TRP and EIRP metrics are related through the number of radiating antennas and are implementation spe- cific, considering the geometry of the antenna array and the correlation between unwanted emission signals from different antenna ports. An EIRP limit results in different levels of total radiated unwanted emission power depending on the implementatio