SOFTWARE DEFINED TOPOLOGY (SDT) FOR USER PLANE

摘要

A controller and a method for determining a logical topology of communications resources for providing a service offering. The controller comprises a function identifier, a graph generator and a mapper. The identifier is coupled to a service level description (SLD) associating the service with at least one service type and a library of network functions (NFs) and identifies at least one NF in the library for each service type. The generator is coupled to the SLD and a library of primitive service level graphs (SLGs) representing at least one data flow between directly-coupled resource entities and associates at least one primitive SLG to each identified NF. The mapper is coupled to the service level description and a map of network infrastructure elements and maps at least one resource entity of a primitive SLG onto an available network infrastructure element.

主权项

1. A method for determining a topology for service offering in a network, the method comprising:
identifying a set of network function (NF) in accordance with a service level description (SLD) associated with the service offering; selecting service level graph (SLG) primitives in accordance with each identified NF, and an ordering associated with the identified set of NFs, the primitive defining data flow between initial and terminating resource entities; and in accordance with the selected SLG primitives, and a known logical topology, mapping at least one resource entity associated with an SLG primitive to a logical node within the network.