Dynamic Spectrum Sharing allows LTE and 5G NR to operate on the same frequency carrier simultaneously, with the base station dynamically allocating resource elements between the two technologies each subframe based on real-time traffic demand. DSS leverages MBSFN subframes originally designed for LTE broadcast and employs NR rate-matching around LTE Cell-specific Reference Signals so that NR transmissions avoid colliding with legacy reference symbols. This approach lets operators light up 5G coverage instantly across their existing LTE footprint without dedicating or refarming any spectrum.