This requires new, high resolution Digital-to-Analogue Converters (DACs) and Analogue-to-Digital Converters (ADCs), such as the recently launched ADC12DJ3200 from Texas Instruments. They demand highest signal purity for testing their true performance.
The R&S SMA100B RF and microwave analogue signal generator from Rohde & Schwarz combines highest output power, lowest phase noise and lowest wideband noise making it suitable for high resolution ADC/DAC testing as demonstrated in this video.
The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, potential frequency and waveform candidates.
https://www.youtube.com/watch?v=Fxh9fURwoOg
