Unmatched innovation

The only small cell backhaul system that meets all key requirements

Self-organising and optimising

Metnet nodes connect autonomously to form self-organising, self-healing links that dynamically reconfigure to optimise performance and spectral efficiency as LOS circumstances or traffic levels change, whilst minimising interference.

The system polls the network continually and automatically determines the optimal topology to deliver capacity where needed. Each cluster runs a Spatial-TDMA transmission schedule, which allows links to operate simultaneously to increase the overall capacity delivered to each small cell location.

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Small form factor

Form factor is critical in the urban environment. The Metnet system comprises small, lightweight and robust units for discreet installation on street furniture, sides of buildings and roofs.

Each multipoint node has a wide 270-degree field of view, so only one unit is required per lamppost, rather than multiple radios necessary for V/E-band solutions. This is not only more acceptable to urban planners, but contributes significant CAPEX and OPEX savings.

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Quick to deploy

Operators will ultimately need to rollout many thousands of small cells, so rapid, low-cost deployment is crucial. The Metnet system operates in a single frequency channel with no radio frequency planning required. Each node has a wide 270-degree field of view and supports multiple connections, so there's no need for manual alignment.

The unique self-organising capability enables plug-and-play installation in less than 15 minutes by local contractors rather than telecom engineers, which reduces CAPEX considerably. And a single type of outdoor unit with integrated power performs all network functions, to further simplify deployment.

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Easy to scale

The expectation is that operators will gradually expand the number and density of small cells over time, where and when they are needed, in tactical response to increased traffic loads. There's no need to re-visit existing sites as new Metnet nodes are added because existing nodes will automatically re-organise and re-align.

This creates large OPEX savings compared to PTP systems, which would need continual re-planning and re-alignment as the small cell network grows. Interference management enables the system to scale up to many thousands of nodes and only one unit is required to add a new link.

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Low latency and high capacity

Designed with LTE in mind, the Metnet system accommodates evolving traffic demands. It offers low latency – averaging 150μs per hop – and high capacity at 1.2 Gbps per node.

The system includes a range of synchronisation options which are enhanced through the support of GPS. Each node supports both Synchronous Ethernet (SyncE) and 1588.v2, with single source and distributed GPS timing recovery to provide further synchronisation resilience. Performance has been independently verified by Chronos Technology.

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High availability and resilience

The Metnet system has a unique multipoint-to-multipoint architecture – where each node can connect up to 16 other nodes – to provide higher resiliency and redundancy at no incremental CAPEX.

Self-organising, self-healing links automatically re-route traffic in the event of node failure or LOS obstacles. And the unit's wide 270-degree field of view ensures it's not affected by pole-sway.

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Flexible synchronisation

Each Metnet node is uniquely capable of providing GPS-derived local master synchronisation (SyncE and 1588.v2) to the small cell, enabling operation in challenging environments when the small cell’s own GPS may fail.

The system also supports 1588.v2 Transparent Clock from the core network to the small cell. Metnet nodes can recover synchronisation and fall back to core network-provided SyncE and 1588.v2. Distributed timing recovery provides further synchronisation resilience to overcome GPS failures.

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Lowest TCO

The Metnet system is purposely designed for large-scale, low-cost deployment and operation. Its unique, self-organising capability, coupled with a resilient multipoint-to-multipoint architecture, is key to delivering the lowest TCO for any small cell backhaul technology.

A recent analysis published by Senza Fili estimated TCO CAPEX savings of 42% and OPEX savings of 34% for CCS’ self-organising system compared to V/E-band solutions. It enables cost-effective small cell deployment in a flexible, organic way as additional capacity is required. It’s the first backhaul solution that makes outdoor small cells truly viable.

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