2.1GHz Dynamic Spectrum Sharing Scheme for 4G/5G Mobile Network

Mobile network investment, coverage, capacity and quality are all directly impacted by the non-renewable and limited availability of wireless spectrum. The lack of sufficient 5G spectrum resources necessitates the recultivation of 4G spectrum. However, since 4G services are still available at the start of 5G, the spectrum cannot be fully converted to 5G. DSS technology improves the spectrum replenishment process, allowing 4G users to continue using the original spectrum and 5G to add additional low frequency spectrum to fully utilize the available spectrum resources. The ability to implement 5G NR coverage in the low-band is enabled by 4G/5G spectrum sharing technology, which allows operators to seamlessly switch from 4G to 5G customers. Strategies for 2.1GHz spectrum rearming are discussed in this work, and current networks are tested in 40MHz NR scenario, 20MHz LTE+20MHz NR scenario and 40MHz DSS scenario, such that the experimental data can be used as a benchmark for the smooth advancement of subsequent 2.1GHz.