Examples provide an apparatus for instantiating a virtualised part of a next generation Node B, gNB, comprising a Network Functions Virtualisation Orchestrator, operable to carry out any one or more tasks including on-boarding an VNF package, on-boarding a PNF Descriptor on-boarding a Network Service Descriptor, enabling the VNF package, enabling the Network Service Descriptor, and sending appropriate responses to a Network Manager. Examples also provide corresponding methods.