{"id":918944,"date":"2025-12-11T11:03:29","date_gmt":"2025-12-11T16:03:29","guid":{"rendered":"https:\/\/www.marketnewsdesk.com\/index.php\/keysight-and-kt-sat-achieve-industry-first-multi-orbit-ntn-handover-between-geo-satellite-and-emulated-leo-link\/"},"modified":"2025-12-11T11:03:29","modified_gmt":"2025-12-11T16:03:29","slug":"keysight-and-kt-sat-achieve-industry-first-multi-orbit-ntn-handover-between-geo-satellite-and-emulated-leo-link","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/keysight-and-kt-sat-achieve-industry-first-multi-orbit-ntn-handover-between-geo-satellite-and-emulated-leo-link\/","title":{"rendered":"Keysight and KT SAT Achieve Industry-First Multi-Orbit NTN Handover Between GEO Satellite and Emulated LEO Link"},"content":{"rendered":"

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Keysight and KT SAT Achieve Industry-First Multi-Orbit NTN Handover Between GEO Satellite and Emulated LEO Link<\/b><\/p>\n

\nLive multi-orbit proof-of-concept shows session continuity from a geostationary earth orbit to an emulated low Earth orbit link, validating a core 6G capability\n<\/p>\n

SANTA ROSA, Calif.–(BUSINESS WIRE<\/a>)–Keysight Technologies, Inc.<\/a> (NYSE: KEYS) today announced that in collaboration with KT SAT, it has demonstrated a successful non-terrestrial network (NTN) handover using the KOREASAT-6A satellite at KT SAT\u2019s Kumsan Satellite Network Operation Center in Korea. In a controlled lab environment, the companies established the industry\u2019s first1<\/sup> NR-NTN multi-orbit handover between a commercial GEO satellite and an emulated LEO link. The demonstration was performed over a live Ku\u2011band GEO connection (DL ~12.3 GHz \/ UL ~14.4 GHz), marking a major milestone toward testing the newly standardized 3GPP Rel\u201119 Ku\u2011band NTN spectrum. By incorporating Ku\u2011band operation into this multi-orbit mobility scenario, Keysight and KT SAT have validated NTN behaviors in a frequency range now central to emerging global standards and operator deployment strategies.\n<\/p>\n

\nAs the industry moves toward 6G, integrating satellite and terrestrial networks is essential to deliver continuous coverage and resilient service in remote or disaster-affected areas. Satellite links, however, introduce longer delays, Doppler effects, and dynamic link conditions that complicate mobility and handover across space and ground domains.\n<\/p>\n

\nBy moving beyond earlier demonstrations focused on single-orbit GEO connectivity, KT SAT and Keysight have shown how operators can evolve from point-to-point satellite links to continuous multi-orbit mobility, expanding KT SAT\u2019s service capabilities toward resilient, always-on coverage across space and ground domains. This achievement also establishes an important technical milestone for KT SAT and Keysight in advancing Ku-band NTN mobility.\n<\/p>\n

\nUsing Keysight\u2019s Network Emulator Solutions<\/a> and UeSIM RAN Testing Toolset<\/a>, the teams emulated the base station and user equipment, established a two-way link through KOREASAT-6A, and maintained service continuity during a handover from GEO to an emulated LEO connection. Operating the GEO link in Ku\u2011band ensures that these mobility insights directly map to the Rel\u201119 NTN frequency bands now entering commercial planning, giving operators and device vendors earlier visibility into real\u2011world propagation, timing, and interoperability behaviors. As a result, KT SAT can now explore and validate advanced NTN mobility scenarios in the lab, before satellites or user devices are widely deployed, accelerating its roadmap and reducing the time and cost of bringing new multi-orbit services to market.\n<\/p>\n

\nThis collaboration shows how operators can extend coverage and resilience, while device and chipset vendors gain a lab-based path to validate NTN mobility without relying solely on expensive field trials. Insights from this work are intended to inform standards discussions and operator evaluations, helping the ecosystem shorten time-to-trial and de-risk commercialization.\n<\/p>\n

Seo Young-soo, CEO of KT SAT, said:<\/b> \u201cAs the only satellite communications service provider in Korea, KT SAT is progressively validating the applicability of NTN gNB and UE using our five operational GEO satellites. Building on the results of this trial, we will actively explore strengthening the competitiveness of our next-generation GEO satellite for the global market and delivering integrated multi-orbit communication services based on NTN systems, including traffic handover across our own GEO and future LEO\/MEO constellations.\u201d\n<\/p>\n

Peng Cao, Vice President and General Manager of Keysight\u2019s Wireless Test Group, Keysight, said:<\/b> \u201cThis demonstration shows how emulation can bring future multi-orbit networks into the lab today. By combining a live GEO connection with emulated LEO conditions using NR-NTN parameters in Ku-band, Keysight gives operators and vendors a practical way to study NTN handover behavior, optimize mobility strategies, and reduce the cost and risk of early deployments.\u201d\n<\/p>\n

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