NG.113 5GS Roaming Guidelines v14.0

As 5G deployment continues to expand globally, consistent roaming capabilities are essential to ensure seamless connectivity and a secure user experience across networks.

This document provides guidelines for how 5G System (5GS) networks using the 5G Core (5GC) should interconnect and interwork when subscribers roam between home and visited mobile networks.

It outlines 5G roaming architecture, deployment models and the security considerations operators should evaluate when implementing 5GS roaming. The document also references relevant 3GPP specifications and related GSMA Permanent Reference Documents to support interoperable and secure 5G roaming deployments.