Transport Network aware Mobility for 5G

This document specifies a framework and a mapping function for 5G mobile user plane with transport network slicing, integrated with Mobile Radio Access and a Virtualized Core Network. The integrated approach is specified in a way to fit into the 5G core network architecture defined in [TS23.501]. It focuses on an optimized mobile user plane functionality with various transport services needed for some of the 5G traffic needing low and deterministic latency, real- time, mission-critical services. This document describes, how this objective is achieved agnostic to the transport underlay used (IPv4, IPv6, MPLS) in various deployments and with a new transport network underlay routing, called Preferred Path Routing (PPR).