Overview

GXC's 4G Onyx Solution is a fully integrated enterprise-grade private LTE platform designed to deliver secure, high-performance wireless connectivity. Tailored for industrial, campus, and large commercial deployments, the architecture combines CBRS-based radio infrastructure with an on-premises core and centralized orchestration tools.

The Onyx architecture consists of several key components that work together to provide secure connectivity, centralized management, and scalable private LTE deployment.

GXC 4G Private Network Architecture

Onyx Edge

The Onyx Edge serves as the integrated LTE core and acts as the central processing unit of the private network. It combines the core LTE functions—Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (SGW), and Packet Data Network Gateway (PGW)—into a single platform. Together, these components provide secure device authentication, mobility management, and efficient routing of user data between the private LTE network, the enterprise LAN, and external networks such as the public internet.

The Onyx Edge is deployed on-premises on ONYX-ES hardware.

For information on Onyx Edge On-Premises, see 4G Onyx Edge On-Premises Installation and Operations Guide.

Access Points

The GXC Access Points (APs) are LTE radios purpose-built to operate on CBRS Band 48. These APs provide enterprise-grade LTE radio access with low latency and high throughput, supporting a wide range of connected devices.

Designed for rugged and demanding environments such as warehouses, manufacturing plants, and large campuses, they ensure continuous and reliable wireless access across both indoor and outdoor spaces.

GXC's 4G AP lineup includes indoor APs with a compact form factor, ideal for smart factories and large indoor spaces, and ruggedized outdoor APs for industrial yards, campuses, and extended-range needs.

Mesh Nodes

Mesh Nodes enable wireless backhaul for APs where wired connectivity is unavailable. Each Mesh Node integrates a G101 or G501 AP with a mesh-capable radio to wirelessly connect back to the Onyx Edge. Using self-interference mitigation techniques, Mesh Nodes support simultaneous access and wireless backhaul traffic over the same CBRS band. This architecture supports flexible and rapid deployment of network infrastructure, making it ideal for temporary setups or complex physical environments.

GXC's Mesh Node lineup includes:

• GM01 — A compact, general-purpose mesh node designed for rapid extension of network coverage.
• GM02 — A hardened mesh node providing higher power output and improved backhaul performance for demanding outdoor or industrial environments.

For more information, see the GM01 Mesh Node Hardware Installation and Configuration Guide and/or GM02 Mesh Node Hardware Installation and Configuration Guide.

Spectrum Access and SAS Integration

To operate in CBRS Band 48, GXC's solution integrates with certified Spectrum Access Systems (SAS) for dynamic spectrum allocation and interference management. This integration enables automated real-time spectrum coordination, ensuring reliable operation while maintaining compliance with FCC regulations. SAS registration and spectrum coordination are managed through the Onyx Platform, simplifying deployment and ongoing operation.

SIM and Subscriber Management

The GXC solution supports both physical SIMs and eSIMs for subscriber authentication and UE access control. Subscriber profiles are managed by the HSS function within the Onyx Edge, while provisioning and policy enforcement are performed through the Onyx Portal. This ensures secure and granular control over which user equipment (UE) can access the network and under what conditions, supporting enterprise security and access management requirements.

Onyx Orchestrator

The Onyx Orchestrator is GXC's cloud-hosted backend service responsible for network configuration and orchestration. It maintains configuration data, synchronizes settings across network components, and ensures policy enforcement. Onyx Edge and APs periodically communicate with the orchestrator to report operational status and receive configuration updates. This orchestration layer ensures consistent configuration, policy enforcement, and centralized monitoring of network performance.

Onyx Portal

The Onyx Portal provides a centralized, web-based interface for monitoring and managing Onyx networks. It delivers intuitive control and operational visibility across all network components, enabling simplified management of complex enterprise private LTE deployments.