--- title: "Interoperability events | Nexus Observatory" description: "Interoperability events, inside Test and qualification: open testing and integration centre labs, interoperability testing, RF and channel emulation." url: https://observatory.global/qualification/interoperability-events/ publisher: Nexus Observatory Inc. updated: 2026-11-07 --- [Nexus Observatory](https://observatory.global/) / [Test and qualification](https://observatory.global/qualification/) / **Interoperability events** # Many suppliers, one test plan. Interoperability events, inside Test and qualification: open testing and integration centre labs, interoperability testing, RF and channel emulation. Every item is traced to its specification, from O-RAN Test and Integration Focus Group to O-RAN End-to-End Test Specification, and runs on the open Observatory Protocol. [Plan with us](https://observatory.global/contact/) Architecture [The protocol](https://observatory.global/protocol/specification/) **Technologies**: 3 **At the frontier**: 0 **Protocol functions**: 3 of 12 **Industries served**: 4 At a glance ## Open testing and integration centre labs Lab practice in the style of O-RAN OTICs for multi-supplier integration, badging and pre-deployment testing. In interoperability events, part of Test and qualification, the testing, integration and security layer holds open testing and integration centre labs, drawn against O-RAN Test and Integration Focus Group and O-RAN End-to-End Test Specification. The problem ### Many suppliers, one test plan Datasheets promise performance in conditions nobody's site will see. Buyers, auditors and regulators need results they can check, from tests they can repeat. Without independent, repeatable tests, every comparison between suppliers is a comparison between marketing documents; qualification replaces claims with measured results, published either way. Key facts **Specification**: O-RAN Test and Integration Focus Group · O-RAN End-to-End Test Specification **Specification**: 3GPP TS 38.141-1 · 3GPP TR 38.901 **Specification**: O-RAN WG4 Interoperability Test Specification · O-RAN WG5 specifications **Standards**: O-RAN Test and Integration Focus Group · O-RAN End-to-End Test Specification · O-RAN WG4 Interoperability Test Specification · O-RAN WG5 specifications Components - Edge GPU server, 2U, on rack slides - Automatic weather station (AWS) to WMO siting practice - Particulate monitoring station and sensor node - Compact X-band weather radar / ISAC sensing node on a lattice tower top - Street small-cell pole with an air-quality node - "AI tower in a box" - Hardware security module, 1U, in an edge rack - Data hall row pair with cold-aisle containment Interfaces **Radio**: Ethernet In the story below 1. The system, part by part 2. Assembly 3. Installation 4. Deployment 5. Connections 6. Operation 7. Failure and recovery 8. Scale and federation 9. What you get Scenes · 13 Next steps [Plan a deployment](https://observatory.global/qualification/contact/deployment/) [Open the Field Deployment Studio](https://observatory.global/studio/) [See Test and qualification](https://observatory.global/qualification/) [Talk to sales](https://observatory.global/contact/sales-enquiry/) 1. Test and qualification · Interoperability events Many suppliers, one test plan Datasheets promise performance in conditions nobody's site will see. Buyers, auditors and regulators need results they can check, from tests they can repeat. Without independent, repeatable tests, every comparison between suppliers is a comparison between marketing documents; qualification replaces claims with measured results, published either way. 2. What it does Open testing and integration centre labs Lab practice in the style of O-RAN OTICs for multi-supplier integration, badging and pre-deployment testing. In interoperability events, part of Test and qualification, the testing, integration and security layer holds open testing and integration centre labs, drawn against O-RAN Test and Integration Focus Group and O-RAN End-to-End Test Specification. SpecificationO-RAN Test and Integration Focus Group · O-RAN End-to-End Test Specification 3. Testing, integration and security RF and channel emulation Lab emulation of radio channels, mobility and interference for repeatable tests. In interoperability events, part of Test and qualification, the testing, integration and security layer holds RF and channel emulation, drawn against 3GPP TS 38.141-1 and 3GPP TR 38.901. We build it into every site for interoperability events against that standard, and keep its version and its test results on the site’s record. Specification3GPP TS 38.141-1 · 3GPP TR 38.901 4. Time and place When and where, on every record Every record made for interoperability events carries its time, from a clock disciplined by satellite time or a PTP grandmaster, with the position and siting record of the station that made it. When time or position degrades, the record for interoperability events says so, and every user downstream sees the same warning. 5. Testing, integration and security Interoperability testing Pairwise testing of radio units and distributed units from different suppliers. In interoperability events, part of Test and qualification, the testing, integration and security layer holds interoperability testing, drawn against O-RAN WG4 Interoperability Test Specification and O-RAN WG5 specifications. We build it into every site for interoperability events against that standard, and keep its version and its test results on the site’s record. SpecificationO-RAN WG4 Interoperability Test Specification · O-RAN WG5 specifications 6. Trust Proved before it is trusted A node joins a network for interoperability events only after its hardware root of trust answers an attestation challenge. Its keys stay in secure hardware, its software arrives signed and every record it makes for interoperability events carries a signature, so anyone downstream can check where a value came from. 7. Evidence Traced to its specifications We trace each part of interoperability events to its specification: O-RAN Test and Integration Focus Group, O-RAN End-to-End Test Specification and O-RAN WG4 Interoperability Test Specification. We keep the versions, configurations and test results of interoperability events as signed records, so a buyer or an auditor can check what was delivered against what was specified. StandardsO-RAN Test and Integration Focus Group · O-RAN End-to-End Test Specification · O-RAN WG4 Interoperability Test Specification · O-RAN WG5 specifications 8. Operations Every node watched, every incident closed The operations console shows every node of a network for interoperability events with its state, its plan and its evidence. An alert arrives with its data and a runbook, acknowledging it opens a work order, and an incident for interoperability events closes only when the operator records the cause and verifies the fix. 9. Failure and recovery When a node fails, the fleet knows first When a node for interoperability events goes silent or a sensor drifts, the node buffers its data and fails over to a second link where the site has one. The alert carries the evidence a responder needs, and the record for interoperability events loses nothing and counts nothing twice. 10. Updates Updates in rings, with rollback Software and configuration reach a fleet for interoperability events in rings: one canary site first, then a few, then all, each ring gated on health and data completeness. A failed gate stops the wave, and each node for interoperability events returns to its last good release without a site visit. 11. How it scales One base unit, repeated A network for interoperability events starts with one base node and the instruments it reads. A station adds power and radio, a site adds a relay and a fleet repeats the proven site, so capacity for interoperability events grows by adding units, never by replacing what works. 12. What you get Qualification and the works-with programme The conformance tool and test plans are open. Device and software qualification, the works-with programme and field trial management are contracted. Works-with testing gives makers a recognised way to show their products join any grid built on the specification, with results published either way. [Talk to sales](https://observatory.global/contact/sales-enquiry/) [Partner with us](https://observatory.global/contact/partner/) 13. Next step Interoperability events, planned with you Tell us the sites, the systems interoperability events must work with and the outcome you need, with a map or a list of addresses if you have one. An engineer replies with a survey proposal, a design and a scope for interoperability events, and the plan grows from one site to the network you need. [Plan a deployment](https://observatory.global/qualification/contact/deployment/) [Open the Field Deployment Studio](https://observatory.global/studio/) [See Test and qualification](https://observatory.global/qualification/) More presentations ## See it from every side. Each opens as a full-screen presentation: deeper pages on the same subject, explainers, stories, guided tours of the places, network scenes and the observatories that came before. [All presentations](https://observatory.global/presentations/) ### In depth [Use case **Northern civil observatory**](https://observatory.global/use-cases/northern-civil/) [Use case **Utility grid-edge private LTE and wildfire weather**](https://observatory.global/use-cases/utility-grid-edge/) [Use case **Methane fenceline observatory**](https://observatory.global/use-cases/methane-fenceline/) [Use case **Highway corridor coverage and safety sensing**](https://observatory.global/use-cases/highway-corridor/) ### Explainers [Explainer · Scientific **Scientific, explained**](https://observatory.global/industries/research/explainer/) [Explainer · Industrial **Industrial** Blast vibration at the pit, fire weather at the grid edge, methane at the fenceline and tailings movement from GNSS.](https://observatory.global/industries/infrastructure/explainer/) [Platform **Test and qualification** Claims are easy; evidence is rare](https://observatory.global/qualification/) [Platform **Connectivity** Public networks were not built for this site](https://observatory.global/connectivity/) ### Stories [Story · Overview **What changes by 2030** Six shifts will reshape how the Earth is observed before the decade ends: networks that sense, models that forecast, foundation models that read imagery,…](https://observatory.global/stories/horizon-2030/) [Story · Orbit **Orbits as infrastructure** Low orbits are fast and crowded, high orbits slow and spacious. Every choice of altitude is a trade between delay, footprint and how long the satellite…](https://observatory.global/stories/orbit/) [Story · Data provenance chain **From sensor to record** A published observation should carry its own history: which instrument made it, when, under which calibration, and every step since. The web already has a…](https://observatory.global/stories/provenance/) ### Places and networks [Guided tour · Guided 3D tour **Orbit view** Ground tracks of a sun-synchronous imager and three shells of a broadband constellation, computed from their orbits over a rotating Earth.](https://observatory.global/environments/orbit-view/) [Guided tour · Guided 3D tour **Ground station** An 11 m class antenna and its companions on a fenced pad, with edge compute that turns each pass into catalogued products before the next one.](https://observatory.global/environments/ground-station/) [Network scene · NTN · Satellite **Satellite direct to device in a mountain valley** Where the valley cell cannot reach, phones on the pass road connect straight to a low-orbit satellite, which relays through its feeder link to a gateway.](https://observatory.global/environments/networks/ntn-d2d/) [Network scene · Private 5G · Mining **Private 5G in an open-pit mine** A private network for haul trucks, drills and slope radar: a mast on the rim, a cell in the pit, the core at the plant, and coverage computed over the benches themselves.](https://observatory.global/environments/networks/private5g-mine/) ### Heritage observatories [Heritage observatory · with stations elsewhere in Italy and abroad · 1654 **Medici meteorological network** In 1654 the Grand Duke of Tuscany asked a handful of observers in Italy and beyond to read the same kind of thermometer at the same hours and keep the same kind of record.](https://observatory.global/observatories/medici-network/) [Heritage observatory · Earth orbit · 1972 **Landsat programme** Since 1972 the same kind of satellite has photographed the same patches of land, building the longest continuous record of the Earth's surface from space.](https://observatory.global/observatories/landsat/) ### Interactive tools [Interactive tool · Plan a site **Field Deployment Studio** Terrain, devices, coverage, viewshed, power and the best spot for a station, then a deployment request with the plan attached.](https://observatory.global/studio/) **01** What it is ## Testing, integration and security. Disaggregated, software-defined and AI-assisted radio access: the O-RAN architecture and its open interfaces, 7.2x fronthaul, RAN intelligent controllers with xApps and rApps, SMO and O-Cloud, accelerated L1, shared GPU infrastructure for RAN and AI, AI/ML in the 3GPP air interface, energy saving, and the test and integration work that makes multi-supplier RAN deployable. Each technology below carries what it is, what we do with it, and the standard it is drawn against. AI-RAN and Open RAN ### Open testing and integration centre labs Lab practice in the style of O-RAN OTICs for multi-supplier integration, badging and pre-deployment testing. We design, integrate and support. O-RAN Test and Integration Focus Group · O-RAN End-to-End Test Specification AI-RAN and Open RAN ### Interoperability testing Pairwise testing of radio units and distributed units from different suppliers. We integrate and support. O-RAN WG4 Interoperability Test Specification · O-RAN WG5 specifications AI-RAN and Open RAN ### RF and channel emulation Lab emulation of radio channels, mobility and interference for repeatable tests. We integrate and support. 3GPP TS 38.141-1 · 3GPP TR 38.901 **02** Architecture ## Where it sits, and what it speaks. Interoperability events draws on the spectrum below; the highlighted layers carry this area, and the protocol functions it speaks are marked. Meteorology (WMO No. 8 classes) 10 Air quality and atmospheric composition 7 Hydrology and water 7 Ocean and coastal 7 Seismic, geodetic, geomagnetic and radiation 8 RF, acoustics, cameras and radar 9 Calibration, metadata and quality control 7 Frontier and research 6 Macro, small cells, DAS and repeaters 9 Massive MIMO and beamforming 7 NR bands, duplexing and synchronisation 9 NR features: RedCap, positioning, sidelink and verticals 9 Private networks and RAN sharing 7 Wi-Fi coexistence and convergence 8 6G and integrated sensing and communication 7 RAN planning, optimisation and assurance 6 01**Join** Identity, attestation quote, signed policy. 02**Admit** Admitted for a stated scope, nothing wider. 03**Describe** What, where, how and by whom, with calibration. 04**Time** One clock across the grid, with its error bound. 05**Observe** Every value with quality and provenance. 06**Qualify** Tested against the specification, state on record. 07**Federate** Signed exchange across grids and trust domains. 08**Orchestrate** Software and configuration by signed plan. 09**Correct** A correction marks what depends on it and publishes a new version. 10**Exchange** Products reach people and applications through versioned interfaces. 11**Prove** Signed proof receipts that an independent verifier can check. 12**Exit and decommission** An open exit path, and a record that closes. **03** On the grid ## Every site joins one observing grid. The open networks on the grid today, over real relief and the geodesic cells we count them into. A site built here enrols into the same grid. ## The observing grid 1. Open instruments on the observing grid. **04** In the field ## Where this runs, sector by sector. Deployment scenarios from the sector research that rely on interoperability events. [Cities Hybrid air-quality network Reference analysers plus calibrated low-cost nodes; low-cost sensors alone do not meet regulatory requirements.](https://observatory.global/sectors/cities/) [Agriculture Smallholder and parametric-insurance station networks Station density and tamper evidence for index insurance.](https://observatory.global/sectors/agriculture/) [Energy Bankable solar and wind measurement campaigns Accepted standards, traceable calibration and transparent data handling.](https://observatory.global/sectors/energy/) **05** Open and enterprise ## Open by default. Enterprise by contract. The open counterpart lives on the main site for anyone to read and run. The enterprise service is designed, deployed and operated with you, under contract. Open, on the main site - Conformance tool - Test plans Enterprise, on this site - Device and software qualification - Works-with programme - Field trial management **06** The rest of the line ## Test and qualification, area by area. [Test and qualification Lab testing Environmental, RF, power and EMC, on the bench.](https://observatory.global/qualification/lab-testing/) [Test and qualification Field trials On a real site, against a written plan.](https://observatory.global/qualification/field-trials/) [Test and qualification Conformance Run the protocol suite, publish the result.](https://observatory.global/qualification/conformance/) [Test and qualification Evidence Every result, signed and kept.](https://observatory.global/qualification/evidence/) ## Bring us the site. Survey, design, deployment and operation for interoperability events. The form names who receives your details. [Talk to us](https://observatory.global/contact/) [Ask for a quote](https://observatory.global/contact/sales-enquiry/) [Nexus Observatory](https://observatory.global/) **Test and qualification** . Tested against the specification. State on record. 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