The network slicing test that Telefónica and Ericsson carried out 15 days ago in a 5G SA network was an important step in defining the concept of dynamic partitioning of radio resources. It is an initiative that various operators and providers, from NTT Docomo and SKK Telecom to Ericsson and Nokia, have been working on for years. The experience of the Spanish operator and the Swedish provider included end-to-end automation.