Telefonica’s German unit, O2 Telefonica, is following in the footsteps of Dish and NTT Docomo – building a 5G core network on AWS, using equipment and software from Nokia. This is the first time that existing customers and an existing network are being migrated to a cloud network running on AWS, the pair claim. This is a dip of the toe into the ocean for O2 Telefonica, since it plans to migrate just one million of its 45 million mobile users to the cloud network. Once cloud-native, core network functions can be updated faster and more cost-effectively, which fits the intended characteristics of a 5G network – one that can be instantly updated with new features, or to remove unwanted features. “With the launch of the…