PGW (Packet Data Network Gateway)

The Stingray PGW solution is an intelligent gateway that forms the foundation of the network and provides high performance, flexibility and traffic control.

Key features and capabilities of PGW:

Ensuring reliability and continuity of service through the use of CUPS (Control and User Plane Separation).
Stingray PGW works with the native S2b interface, which enables the implementation of HandOver service for VoWiFi.
A proprietary optimized data channel control protocol (BCP) ensures high performance and fault tolerance.
A distributed session information storage system implements processing module independence.

Advantages of Stingray PGW

Complies with 3GPP standards and supports all necessary interfaces

PGW can be supplied separately without PCEF. In this case, PGW is integrated with PCEF manufactured by other vendors

Support for up to 1 million subscribers and performance of up to 40 Gbps on a single unit.

Horizontal scaling of the solution for multiple performance increases by using multiple Stingray PGW servers and combining them into a cluster.

Traffic filtering, channel load optimization, and CG-NAT thanks to native integration with Stingray DPI.

Ensures redundancy and fault tolerance through architectural resource distribution and session data caching.

Try the PGW solution for free on your own hardware or virtual machine

How PGW from VAS Experts works

Stingray PGW from VAS Experts integrates into the LTE operator’s core at the border with external networks and interacts with the operator’s EPC systems via the following interfaces:

Gx: between PCRF and PGW (Diameter)
SGi: between PGW and external data networks
S5/S8: between SGW and PGW (GTPv2). S8 connects an external SGW and the home PGW when users are roaming; S5 connects a local SGW and a local PGW
S2b: between ePDG and PGW
S2a: connection with TWAN, trusted Wi-Fi networks
S6b: integration with authentication systems for non-3GPP network subscribers (S2a, S2b)

PGW usage scenarios

Use in LTE/5G networks to ensure reliable connection to external networks

PGW acts as the exit point for all user traffic to the external IP network (the Internet). It assigns an IP address to the subscriber (acting as a DHCP server or using an external one), routes packets, and performs address translation (NAT).

Mobile broadband access

Providing high-speed Internet access for smartphones, tablets, and modems. PGW manages sessions for millions of such devices simultaneously.

Inter-network interaction (Handover)

Ensures session continuity when switching between access technologies (e.g., LTE and Wi-Fi, if ePDG technology is used).

Mobility support

When a subscriber moves between base stations and even between different SGWs (Serving Gateways), their PGW remains unchanged, which guarantees that the IP address remains the same during the session, ensuring seamless mobility.

Support in the context of 5G Non-Standalone architecture

In this model, where 5G radio (NR) uses the 4G network core (EPC), the PGW remains a key element. It performs the same functions for 5G traffic, but in conjunction with an additional element — eLTE (evolved LTE, a base station that supports 5G NR).

Geographical distribution of subscribers

Additional PGW modules in different geographical locations improve performance and reduce latency for subscribers of a geographically distributed telecommunications operator.

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We will contact you, specify the task, provide access to the documentation and answer your questions.

We discuss the current situation: traffic volume, available equipment, the functionality you need.

Our engeniers install the selected software and adapt it to your specific tasks. Сontract — only after the test is successful.

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Key features and capabilities of PGW:

Advantages of Stingray PGW

How PGW from VAS Experts works

PGW usage scenarios