Orchestration and configuration of e2e network slices across 3gpp core network and oran

An apparatus configured to operate as a Network Subnet Slice Management System (NSSMS) producer, the apparatus comprising:

• processing circuitry to configure the NSSMS producer to:
• receive a request for creation of an open radio access network (O-RAN) network slice subnet (O-NSSI) instance from an NSSMS consumer;
• based on the request, determine one of a new O-NSSI is to be created and an existing O-NSSI is to be used;
• and
• in response to a determination that the existing O-NSSI is to be used, trigger modifications of an O-NSSI constituent of the existing O-NSSI;
• and
• a memory configured to store information of the existing O-NSSI.

A non-transitory computer-readable storage medium that stores instructions for execution by a Network Subnet Slice Management System (NSSMS) producer, the instructions when executed configure one or more processors to:

• receive a request for creation of an open radio access network (O-RAN) network slice subnet (O-NSSI) instance from an NSSMS consumer;
• based on the request, determine one of a new O-NSSI is to be created and an existing O-NSSI is to be used;
• and
• in response to a determination that the new O-NSSI is to be created, to create the new O-NSSI:
• derive requirements for a constituent NSSI of the new O-NSSI based on the request;
• determine that the constituent NSSI is managed by another NSSMS producer;
• and
• in response to a determination that the constituent NSSI is managed by the other NSSMS producer, trigger creation of the constituent NSSI through the other NSSMS producer for association by the other NSSMS producer to associate the constituent NSSI with the new O-NSSI.