The arrival of 5G technology opens up a new world of possibilities for mobile applications and the devices that rely on them. The full potential of 5G is just beginning to unfold, with a vast array of connected devices already numbering in the millions.
A crucial challenge in this new era is ensuring seamless connectivity between Mobile Network Operators (MNOs), both locally and globally. To support this, essential infrastructure components must be in place to manage the transition of devices from their home networks to diverse roaming networks. Key elements of this infrastructure include IPX, signaling, and security systems.
Connecting with Partners: More Essential Than Ever
5G is fundamentally about enhanced connectivity. For MNOs, having the right components and strategic partnerships is vital for the successful deployment and operation of both 5G non-standalone (NSA) and 5G standalone (SA) networks. Building a robust network of 5G connections with various operators is critical for supporting roaming devices beyond their home networks.
Implementing a well-established telecommunication interconnection as a network-to-network roaming interface is crucial for enabling mobile devices to travel worldwide. This principle has applied since the early days with GRX and continues to be relevant for supporting 3G, 4G, and now 5G roaming connections. A reliable IP Exchange (IPX) serves as the cornerstone for effective operator connectivity.
The expansive capabilities of IPX to accommodate newer technologies and increasing demands for capacity and speed make it an essential foundation for successful interoperability. IPX supports key elements like signaling and security, ensuring seamless communication between operators.
Enhancing Roaming Support
As operators transition services to the new 5G framework, it's crucial to support existing 4G users while also advancing 5G non-standalone roaming. Enhancements in Diameter Signaling Services enable active Diameter mediation, testing, and troubleshooting, which are pivotal for progressing towards the commercial launch of 5G non-standalone roaming.
5G also introduces HTTP2, a cloud-native and web-friendly protocol, to replace older protocols like Diameter and GTPv2. Implementing an HTTP2-based 5G Signaling Controller is essential for enabling roaming with a 5G Core, especially for 5G standalone networks, which promise to unlock new 5G experiences and market opportunities beyond Enhanced Mobile Broadband.
Moreover, 5G brings forth SEPP (Security Edge Protection Proxy), a crucial entity designed to safeguard interconnection and roaming security between networks. SEPP, positioned at the network edge, provides vital protections including integrity, confidentiality, replay, spoofing, and topology concealment. It consolidates all roaming interfaces into a single, encrypted package before transmitting it to partner operators, playing a key role in ensuring end-to-end security in 5G networks.
