annel bandwidth: The new bands in the sub-6 GHz range feature much larger percent bandwidth (n77 24%, n78 = 14%, n79 = 12.8%) than the existing bands (B41 7.5%, B40 = 4.2%, 5 GHz Wi-Fi = 12.7%). The instantaneous signal modulation bandwidth for NR is extended up to 100 MHz in bands n41, n77, n78, and n79. The contiguous intra-band EN-DC instantaneous bandwidth is 120 and 196 MHz for non- contiguous allocations. The conventional envelope tracking schemes would have diffi- culty going beyond 60 MHz bandwidth. Nevertheless, the NR will require new envelop tracking techniques to operate at 100 MHz bandwidth. High-power UE (power class 2 specific to TDD bands n41/77/78/79): As mentioned earlier, the HPUE or power class 2 (+26 dBm at a single antenna) will increase radiated output power by +3 dB relative to power class 3 operation. The PAs will need to be designed to meet higher output power with more complex waveforms. Optimized sys- tem design will be critical to achieving minimal post-PA loss in order to achieve HPUE benefits. High-power transmission of NR inner-band allocations away from channel edge: The NR would require less MPR or power backoff, when reduced waveform allocations are at a specified offset away from the channel edge. This enables much higher power across uplink modulation orders and addresses a fundamental coverage issue in LTE networks, which was related to the uplink power-limited transmission and SNR for reduced resource block allocations at the cell edge. NR waveforms and 256QAM uplink: The new NR waveforms, especially CP-OFDM, have a higher peak-to-average power ratio and will require more power backoff relative to the LTE waveforms. The 256QAM modulation is going to be used in the uplink to increase the data rates. This will challenge the RF front-end to maintain the total EVM below 3% including the PA and transceiver effects. Other issues such as in-band distor- tion, frame rate, and clipping must be managed to achieve maximal efficiency. Cost-effective support for 4 X 4 downlink MIMO, upli