Technology
Dynamic Spectrum Sharing Between 4G and 5G Networks
Quick fact
Dynamic spectrum sharing allows a single 5G radio wave to carry 4G and 5G signals simultaneously, and the split can change every millisecond.
Why this is interesting
Your phone just switched from 4G to 5G, but the tower hasn't changed and the antenna looks the same. How can the same slice of air carry both signals at once, without them interfering?