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Beyond 5G – OPtical nEtwork coNtinuum

Project description

Internet traffic is about to get less congested thanks to more ‘lanes on the road’

The ability to accommodate increasingly massive and complex data transmission has benefitted tremendously from the transition to optical networks. Optical transmission has enabled the information highway, with light of different frequencies multiplexed into the same fibre optic cables like many lanes carrying discrete information ‘cargo.’ The next great leap in capacity could come from expanding the frequency bands available for use – like opening up new lanes on a congested thoroughfare. The EU-funded B5G-OPEN project is developing a novel end-to-end integrated packet-optical transport architecture based on multiband optical transmission. The team will demonstrate the results of their work in two systems, highlighting the benefits to both operators and users.


B5G-OPEN targets the design, prototyping and demonstration of a novel end-to-end integrated packet-optical transport architecture based on MultiBand (MB) optical transmission and switching networks. MB expands the available capacity of optical fibres, by enabling transmission within S, E, and O bands, in addition to commercial C and/or C+L bands, which translates into a potential 10x capacity increase and low-latency for services beyond 5G.
To realize multiband networks, technology advances are required, both in data, control and management planes. Concerning devices, these include new amplifiers, filterless subsystems, add/drop multiplexers, etc. Such technology advances complement novel packet-optical white boxes using flexible sliceable Bandwidth Variable Transceivers and novel pluggable optics. The availability of MB transmission will also lead to a complete redesign of the end-to-end architecture, removing boundaries between network domains and reducing electronic intermediate terminations.
The control plane will be extended to support multiband elements and a ‘domain-less’ network architecture. It will rely on physical layer abstraction, new impairment modelling, and pervasive telemetry data collection to feed AI/ML algorithms that will lead to a Zero-Touch networking paradigm including a full featured node operating system for packet-optical whiteboxes.
The results will be shown in two final demonstrations exposing the project benefits from operator and user perspectives. B5G-OPEN will have a clear impact on the society showing the evolution towards a world with increased needs of connectivity and higher capacity in support of new B5G services and new traffic patterns.
The consortium includes partners from 8 countries: three major telecom operators, three vendors, four SMEs and four research centres and academia, combining several years of experience and a successful record in past European projects on related technologies, thus guaranteeing its success.

Call for proposal


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Net EU contribution
€ 259 750,00
28050 MADRID

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Comunidad de Madrid Comunidad de Madrid Madrid
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Total cost
€ 620 100,00

Participants (17)