Dynamic Spectrum Sharing (DSS)

DSS: LTE and NR on the Same Carrier

Dynamic Spectrum Sharing enables LTE and NR to operate simultaneously on the same frequency carrier without dedicating separate spectrum to each technology. The scheduler dynamically allocates resources between LTE and NR users on a per-subframe basis. When NR traffic is low, LTE gets most resources; when NR demand increases, the scheduler shifts resources to NR. DSS is implemented through rate-matching: NR transmissions avoid LTE reference signals (CRS) by puncturing or rate-matching around them, ensuring LTE devices continue to function normally. No hardware changes are required — DSS is a…