Dynamic spectrum sharing

Dynamic spectrum sharing allows operators to operate 5G and LTE in the same band at the same time. This is possible based on demand and the needs of the end user.

The spectrum available to 5G varies from market to market. This depends on whether it is already in use IN 4G, as well as the timing of auctions and licensing processes. Many operators do not have free spectrum available on those bands.

The split of simultaneous 4G and 5G capacity is adjusted at the millisecond level to ensure optimal performance. This applies to any mix of 4G  and 5G active devices in the network. This minimizes spectrum wastage and results in the best end-user

In the nutshell, DSS is a revolutionary new way of rolling out 5G which can be used in new mid bands (C-band). However, it can also be used in existing mid bands (800, 1800, 2600). DSS reuses hardware, spectrum and sites. At the same time, it increases new mid- and high-band investment value.

This means increased coverage with fewer new sites in less time. Therefore, this leads to infrastructure savings. Ultimately, it gives the chance to be the first to have nationwide coverage in an extremely cost-efficient way.

DSS has been deployed end of December 2019. Swisscom said it expects to have 90% of its population covered with 5G by year-end thanks to DSS technology but it is expected that “multiple large customers” will start using DSS around the first half of 2020.