This reference [1] says that "The maximum EIRP is regulated to be 43 dBm for mobile stations (MSs) by the FCC" which means about 20 watt. But normal simulators are usually using less than 10 watt transmission power for UE, so is there a common range for the EIRP for experimental use?
[1] Huo, Yiming, Xiaodai Dong, and Wei Xu. "5G cellular user equipment: From theory to practical hardware design." IEEE Access 5 (2017): 13992-14010.