Dynamic Spectrum Sharing (DSS) enables mobile operators to dynamically share spectrum resources across different technologies. Depending on an operator’s spectrum assets, it’s an important function that can enable the faster introduction of new 5G services. It can also be used across all Radio Access Types to manage the transition period around the uptake of new services as well as the decline of a legacy technology.
Nokia is the only vendor that already supports different variants of dynamic sharing between 2G, 3G and 4G, and is the de-facto technology leader in commercial 2G, 3G and 4G dynamic sharing implementations. DSS between 4G and 5G will become an important technology with the introduction of 5G to the Frequency Division Duplex (FDD) bands. The first 5G FDD network was launched in the U.S in December 2019 and is powered by Nokia. 5G FDD devices supporting DSS will become available during 2020. Nokia will introduce DSS as a software upgrade in line with commercial 5G FDD mass market device availability in 2020 and is excited about the benefits it will bring to its customers deploying 5G.
The practical benefits of using DSS varies between operators due to their differing radio spectrum assets and their strategies for 5G services. For example, used in conjunction with higher frequency bands (3.5 GHz), 5G FDD with DSS can boost the end user experience with an additional low-band carrier. Similarly, outside of the 3.5 GHz band, DSS provides a flexible way to extend 5G services using an operator’s legacy frequency bands.
DSS for 4G/5G should be used as part of a strategy that takes existing LTE and customer experience metrics into account and balances it with the knowledge that 5G customer expectation may go beyond the capabilities offered by this technology alone. Nokia’s DSS solution is designed to maintain legacy key performance indicators and considerably adds capacity compared to legacy technology alone. DSS will generate real performance gains with 5G standalone networks which are expected from 2021 delivering latency benefits in dense urban environments.
For further information please go to Nokia.com/5G
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