[74] W.U. Yong, Self evaluation: enhanced mobile broadband (eMBB) evaluation results, in: RWS-180018, Workshop on 3GPP Submission Towards IMT-2020, October 2018. [75] D.J. Love, R.W. Heath Jr., Grassmannian precoding for spatial multiplexing systems, in: Proceedings of the Allerton Conference on Communication Control and Computing, Monticello, 2003. [76] N. Jindal, MIMO broadcast channels with finite-rate feedback, IEEE Trans. Inf. Theory 52 (11) (2006). CHAPTER 5 New Radio Access RF and Transceiver Design Considerations The NR RF transceiver characteristics are related to the frequency bands in which the 5G systems will be deployed. Due to wide range of the target frequency bands, spectrum flexibility was required for the new radio in order to operate in diverse spectrum alloca- tions. While spectrum flexibility has been used in the previous generations of radio access technologies, it has become more important for NR development and deployment. Such spectrum flexibility is manifested as feasibility of deployment and resource alloca- tions in frequency blocks of different sizes over an extremely wide range of contiguous or non-contiguous spectrum, both in the form of paired and unpaired frequency bands along with aggregation of different spectrum blocks within and across different bands. The NR has the capability to operate with mixed OFDM numerologies over the same or different RF carrier(s) and has relatively more flexibility compared to LTE in terms of frequency-domain scheduling and multiplexing of devices over the serving base station (BS) RF carrier(s). The use of OFDM waveform in NR provides the desired flexibility in terms of the size of the spectrum allocation and the instantaneous transmission bandwidth adaptation. The application of active antenna system (AAS) concept and multiple anten- nas in the base stations and the devices, which emerged during LTE development, has taken a giant leap in NR with the support of massive MIMO and control/data channel beamforming both in the existing LTE bands and in 