Lightcurve Deployed Harmonic Platform for Multi-Gigabit Speeds
The provider leveraged virtualized broadband technology to deliver up to 8 Gbps downstream over existing coax infrastructure.
Updated on Sept. 24, 2026 in Telecommunications
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Lightcurve has deployed Harmonic's cOS virtualized broadband platform across its multiple-dwelling units in Washington state. The new infrastructure supports multi-gigabit speeds using the provider's existing coax wiring.
Why it matters
This deployment allows regional providers to meet rising subscriber demand for faster bandwidth without requiring expensive full-fiber replacements. By maximizing existing coax investments, the network architecture provides a path to fiber-like throughput.
The system delivers 8 Gbps downstream and 1 Gbps upstream, significantly outperforming legacy cable throughput. It utilizes Harmonic's cOS Core software, Oyster nodes, and Pebble Remote PHY devices to convert existing coax into a high-capacity distributed access architecture.
The players
Lightcurve
A broadband provider serving communities across central and western Washington state using coax and fiber infrastructure.
Harmonic
A networking technology company specializing in virtualized broadband platforms and AI-driven distributed access architectures.
The details
Lightcurve implemented a distributed access architecture, a networking design that moves digital signal processing from a central headend closer to the subscriber. This is achieved via Pebble Remote PHY (physical layer) devices, which convert digital signals to analog for transmission over coax, and Oyster nodes, which serve as the interface for these signals. The platform is further managed by Harmonic's Central AI-driven network intelligence, software that optimizes data traffic and provides real-time diagnostics.
Timeline
September 24, 2026: Harmonic officially announced the partnership with Lightcurve.
The Tech Race
The deployment follows the industry transition toward multi-gigabit standards to enable higher throughput over existing hybrid fiber-coax networks. It positions the firm against pure-fiber competitors by extending the usable life of legacy copper-based infrastructure.
Residents in Lightcurve's multi-dwelling units will gain access to download speeds reaching 8 Gbps once the infrastructure is active in their specific building. This upgrade eliminates the need for internal rewiring, as the system functions over existing coax cables already installed in the home.
The takeaway
This deployment marks a significant leap in the capability of legacy coax networks to handle high-demand modern traffic. Readers should monitor future service expansion announcements from Lightcurve to see if this performance is rolled out to broader single-family residential neighborhoods.
Further reading
For broader trends in infrastructure upgrades, visit our coverage of Telecommunications.
Source note: This article includes information reported by Light Reading.
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