Interworking Function)

Enabling Seamless Interworking Between 3GPP and

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In an increasingly interconnected world, smooth communication across different network technologies is crucial. Developed using Service-based Architecture (SBA) and based on VPP and DPDK framework, Amantya’s N3IWF (Non-3GPP Interworking Function) is designed to seamlessly connect 3GPP and non-3GPP networks. It acts as a gateway, allowing non-3GPP access networks (like Wi-Fi and SatCom) to connect to the 5G Core Network (5GC) via a common interface. It translates protocols and signaling messages between 3GPP and non-3GPP networks.

The N3IWF enables the exchange of data, voice, and multimedia services between cellular networks and non-cellular technologies such as Wi-Fi, LoRaWAN, and satellite networks. It facilitates communication with satellite and non-terrestrial networks (NTN Networks), expanding connectivity options for remote and underserved areas.

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Key Features

  • Interoperability:Ensures smooth communication between 3GPP and non-3GPP networks, supporting various network technologies, protocols, and standards.

  • Scalability:Accommodates increasing traffic and evolving technologies without compromising performance.

  • Security: With robust authentication and encryption mechanisms, we prioritize the confidentiality and integrity of data.

  • Quality of Service (QoS):Supports the QoS control of the N3 interface, optimizing resource allocation and minimizing latency, ensuring exceptional service quality across diverse networks.

  • Flexibility:Configurable parameters and customizable settings to tailor the functionality of the N3IWF to specific network requirements.

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Complies with industry standards and specifications, including 3GPP Release 15/16.


Network Technology Compatibility

Compatible with a wide range of network technologies, including 5G, Wi-Fi (802.11x), LoRaWAN, and satellite networks.


Protocol Support

Supports interworking between 3GPP and non-3GPP networks, including protocols such as IPSec, NGAP, and GTP.


Interface Support

Supports N1, N2, and N3-based connectivity to the core and Y1 and Y2-based connectivity towards Wi-Fi.


Policy Support

Implements policy-based management at multiple levels, including UE, AMF, and SMF.


Handover Support

Supports seamless handover of user sessions between different network access points.


VoWiFi with VoNR

Secure Voice over Wi-Fi (VoWiFi) and Voice over New Radio (VoNR) communication support.


Authentication & Security

Forwards UE authentication information to the core network through the N2 interface. DOS/DDOS Protection, Encoding/decoding of IPSec and N3 data.



High throughput support of up to 20 Gbps, ensuring high data speed transmission and performance.


Traffic Steering

Implements traffic steering mechanisms to route traffic between networks based on predefined policies and traffic management rules.


Management and Monitoring

Open Northbound interface and graphical web-based management interface – RESTful and API.


API Support

Offers APIs for integration with network management systems, OSS/BSS, and third-party applications.

Use Cases

Network Transformation Initiatives (NTN)
  • Supports multi-access PDU sessions, enabling simultaneous data transmission through multiple access technologies for enhanced throughput and reliability.
  • Smooth transitions between legacy and next-gen networks.
  • Accelerates the deployment of innovative services by integrating diverse network technologies seamlessly.
  • Minimizes disruption and downtime during network upgrades or migrations.
Non-3GPP Networks
  • Extends connectivity beyond traditional cellular networks to encompass Wi-Fi, LoRaWAN, and satellite networks.
  • Enables seamless communication between different types of networks, enhancing service coverage and availability.
  • Supports IoT deployments by connecting devices to cellular and non-cellular networks for data exchange.
  • Facilitates communication with satellite and non-terrestrial networks, expanding connectivity options for remote and underserved areas.
Private Networks
  • Facilitates interoperability with legacy networks, ensuring seamless communication between modern private infrastructures and older network technologies.
  • Maintains the integrity and confidentiality of data transmitted within the private infrastructure.
  • Supports specialized applications and services within private network environments, such as industrial IoT.
  • Provides Wi-Fi access for edge computing, allowing devices to offload processing tasks to edge servers for reduced latency and improved performance.

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