> For the complete documentation index, see [llms.txt](https://docs.gxc.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gxc.io/docs/solution-briefs/5g-onyx-shared-cell-super-cell-architecture-solution-brief.md).
# 5G Onyx Shared Cell / Super Cell Architecture Solution Brief
## Overview
Creating high-capacity, full-coverage indoor networks is challenging in complex environments—such as warehouses, airports, and manufacturing facilities—where dense layouts and difficult RF conditions hinder signal propagation and must accommodate varying user demands and mobility. Frequent reconfigurations and the movement of dense materials further complicate RF network planning. Meeting performance requirements (throughput, latency, reliability) in these dynamic settings often requires customized solutions.
The Shared Cell architecture represents a transformative approach to modern wireless network deployments, enabling a single logical cell to be seamlessly extended across multiple Radio Units (RUs). This advanced architecture is valuable where uniform coverage, capacity optimization, and simplified mobility management are critical.
### Key Concept
GXC Shared Cell Architecture
In traditional cellular architectures, each RU defines a distinct cell, often requiring separate frequency allocations and complex interference management. GXC’s Shared Cell architecture redefines this approach by enabling multiple geographically distributed RUs to operate as a single logical cell under one Distributed Unit (DU), orchestrated through the Fronthaul Multiplexer (FHM).
This model allows for reuse of the same frequency channel across multiple RUs— maximizing the value of available spectrum while minimizing planning complexity. By consolidating radio coordination through the FHM, the system supports broad, seamless coverage and consistent performance without needing to segment frequency across individual cells.
With each RU serving its local area while maintaining a unified cell ID and channel, the network increases throughput capacity and user density—ideal for high-demand environments such as warehouses, factories, or distribution hubs. Additionally, frequency reuse in this shared cell configuration enables efficient scaling, lower interference, and simplified deployment.
### Operational Advantages
* **Seamless Mobility and Reduced Signaling Overhead** – Allows multiple RUs to function as a single logical cell under one DU enabling more efficient spectrum utilization. This improves user mobility, eliminates intercell interference, and simplifies RF planning—particularly in high-density environments like factories and campuses.
* **Uniform User Experience** – Consistent radio conditions are maintained across the extended coverage area, minimizing dropped calls and ensuring stable throughput, even at cell edges.
* **Simplified Network Architecture** – Reduced cell planning complexity and fewer handover-related failure points streamline network management and improve reliability.
* **Ideal for Private and Industrial Networks** – Shared Cell architecture is particularly well-suited for private 5G networks in enterprise environments, offering uninterrupted connectivity for critical applications and autonomous systems.
### GXC Solution
Drawing upon industry-standard O-RAN Alliance specifications, GXC has developed a unique alternative coverage approach that also enables increased capacity. This involves a complete architecture consisting of a single FHM supporting up to eight RU.
Single FHM Supporting up to Eight RUs
For added coverage a main FHM can branch out to up to eight secondary FHMs, enabling up to 64 RUs operating collectively as a single "Shared Cell".
Primary and up to Eight Secondary FHMs Supporting 64 RUs
GXC's Shared Cell architecture offers a versatile and cost-effective approach to achieving a large single or multi-carrier coverage area.
#### Capacity Adjustments Within a Shared Cell
The capacity of a single cell can increase via flexible DU:RU associations. This allows for selectable shared cell coverage and capacity to match the needs of the deployment.
* **Highest Mobility (1x8 Shared Cell)** – One cell spans all eight RUs. UE see a single PCI (sector), resulting in zero handoffs as users move within the coverage area. This resembles Distributed Antenna System (DAS) functionality but utilizes standard O-RAN equipment.
1x8 Shared Cell
* **Increased Throughput & Attachments (2x4 Shared Cell)** – Throughput and UE attachments are doubled. The network consists of two coverage cells (orange and blue), leading to a single handoff across the midline.
2x4 Shared Cell
* **High Capacity (4x2 Shared Cell)** – Four cells are created, providing a 400% increase in throughput and density. This configuration may result in up to three handoff borders as UE move between cells.
4x2 Shared Cell
In low user density environments where a single RU lacks sufficient coverage and mobility, a 1x8 Shared Cell is an ideal solution. However, there are situations where an increase in user capacity is required. In these situations, a 2x4 or 4x2 Shared Cell configuration is a better approach.
These configurations also excel in highly reflective open areas without physical cell isolation, such as large indoor spaces like warehouses and stadiums.
Network options are user-configurable, allowing for deployments ranging from high-mobility to high-capacity environments with minimal equipment changes.
Shared Cell Models Comparison
## Summary
The GXC Shared Cell architecture offers a next-generation solution for wireless networks by extending a single cell across multiple RUs. This approach enables operators to achieve enhanced coverage, greater spectral efficiency, and a consistent, high-quality user experience.
## Contact GXC
To get in touch with GXC, please visit .
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