6G news and analysis for the week ending Friday, 6th February, 2026.
This week’s developments build on two themes that will be important factors that define the next phase of 6G: who controls the spectrum, and who controls the sky. ABI Research has published a sobering assessment of 6G spectrum sharing, confirming that while the upper 6 GHz and 7–8 GHz bands are expected to be the primary frequencies for early 6G deployment, the technical and economic challenges of sharing these bands remain formidable. With WRC-27 being a focal point for the global 6G frequency roadmap, and China pushing for global harmonisation around 6 GHz cellular use, there will be a lot to play for.
Meanwhile, the convergence of satellite and terrestrial networks continues to gather pace. The Open Technology Institute has called on the FCC to catalyse a “Single Network Future” where devices seamlessly switch between Wi-Fi, cellular and satellite without user intervention. This vision is supported by commercial reality: SpaceX secured FCC authorisation in January to expand its Starlink constellation to 15,000 satellites, and China’s private space sector is rapidly building the launch and constellation infrastructure to support its own integrated space-air-ground 6G network.
On the international cooperation front, India and the EU formalised a 6G research partnership between the Bharat 6G Alliance and 6G-IA, timed to coincide with the announcement of an India-EU Free Trade Agreement. This week also brings an interesting selection of research papers focused on non-terrestrial networks, reinforcement learning for network optimisation and a quantum-inspired approach to optical wireless from Monash University that could address indoor 6G deployment challenges.
Key announcements this week
ABI Research: 6G spectrum sharing faces hurdles
ABI Research has published new findings on 6G spectrum developments, concluding that while the upper 6 GHz band and the 7–8 GHz range are expected to be the key frequencies for early 6G, spectrum sharing in these bands will be technically complex and economically costly. Dimitris Mavrakis, Senior Research Director, said:
“Advanced spectrum sharing has proven to be complex and costly, requiring centralised entities to invest significant effort, capital, and processing power to ensure that no interference occurs.”
What’s new: ABI Research expects uplink and downlink communications in 6G to utilise different spectrum bands for maximum efficiency, with technologies such as Supplemental Uplink (SUL) and Downlink/Uplink Decoupling (DUDe) playing a more prominent role than in 5G. The report notes that uplink capacity is likely to be constrained in the short term.
Why this matters: The 6 GHz band is already contested in many markets, where it has been assigned to licence-exempt Wi-Fi use. China stands apart, having allocated most of the 6 GHz band to cellular use and is expected to push for global harmonisation at WRC-27. The report’s reference to CBRS (Citizens Broadband Radio Service) as a cautionary example of spectrum sharing complexity is pertinent - if a relatively contained system like CBRS has proven difficult to manage, scaling similar approaches to nationwide 6G presents a significantly greater challenge. The emphasis on uplink/downlink decoupling aligns with submissions from multiple operators to the 3GPP 6G Workshop, including Vodafone, Telstra and NTT Docomo, all of which highlighted uplink performance as a critical gap.
Implications for 6G standards: WRC-27 will be the decisive forum for 6G spectrum allocation. The outcome of the 6 GHz debate will shape 3GPP specifications, as the standard must accommodate whichever frequency bands are allocated globally. The growing interest in SUL and DUDe technologies could result in new work items for Release 20 or 21, particularly as operators seek to address the uplink capacity constraints that ABI Research identifies.
View source material to read more
OTI calls for seamless 6G “single network”
The Open Technology Institute (OTI) has published a report titled “What 6G Should Be: Ubiquitous and Seamless Connectivity, Not Just Another ‘G’”, calling for a converged network future where devices automatically switch between Wi-Fi, terrestrial cellular and satellite without manual authentication or packet drops. The NTN aspects of the report were analysed by SatNews. Michael Calabrese, OTI’s Director of the Wireless Future Project, argues that the true value of 6G lies in eliminating the coverage dead zones that still affect rural and indoor environments.
What’s new: The OTI report calls on the FCC to authorise a multi-stakeholder group to standardise seamless handoff protocols between network types. The report frames SpaceX’s recent $19.6 billion acquisition of EchoStar’s spectrum and its January 2026 FCC authorisation to expand Starlink to 15,000 satellites as key developments. The authorisation grants SpaceX the capacity to deliver high-speed, low-latency broadband and direct-to-device cellular service worldwide.
Why this matters: The vision of a “Single Network Future” aligns closely with the NTN integration priorities expressed by virtually every major contributor to the 3GPP 6G Workshop. Organisations including Airbus, ESA, Thales and China Satellite Network Group all called for non-terrestrial networks to be integrated into 6G from day one, avoiding the late incorporation that hampered 5G NTN. However, the OTI report is US-focused and its call for FCC-led coordination reflects a specifically American regulatory approach. The opposition from rivals like Viasat and Globalstar over orbital clutter and spectrum interference highlights the real-world tensions that accompany constellation expansion.
Implications for 6G standards: Seamless handover between terrestrial and non-terrestrial networks is already a focus of 3GPP Release 19 for 5G-Advanced, and multiple workshop submissions have called for this to be a native capability in Release 21. The question of how spectrum will be shared between mobile operators and satellite providers remains one of the most significant unresolved issues in the 6G standards process.
View source material to read more
India and EU formalise 6G research partnership
India and the European Union have agreed to collaborate on 6G research through a partnership between the Bharat 6G Alliance and the 6G Smart Networks and Services Industry Association (6G-IA). The announcement was made by India’s Union Minister for Communications, Jyotiraditya Scindia, following the 16th India-EU Summit. Scindia stated:
“India and the EU now join hands to herald the next generation of telecom.”
What’s new: The partnership follows the joint announcement of an India-EU Free Trade Agreement on 27 January, linking trade cooperation with technology collaboration. The initiative aims to advance 6G research while ensuring next-generation networks are “secure, trusted and resilient.” India’s bilateral trade with the EU stood at $136.54 billion in 2024–25.
Why this matters: The 6G-IA is a 3GPP Market Representation Partner and the primary European organisation for private-sector participation in 6G development. India’s TSDSI is a 3GPP Organisational Partner with 54 member companies. The formalisation of this partnership creates a direct channel between two significant players in the standards ecosystem. However, this should be treated as a framework agreement rather than an actual programme of work. Previous 6G Futures newsletters have noted India’s genuine ambition in 6G alongside persistent challenges including uneven 5G rollout and relatively lower R&D expenditure than leading 6G nations.
Implications for 6G standards: Cross-regional research partnerships can influence standards outcomes when they produce joint technical contributions to 3GPP working groups. The EU’s Horizon Europe programme and India’s national 6G testbed investments provide existing infrastructure for collaborative work. Whether this partnership translates into tangible standards influence will depend on the specifics of the research programme, which have yet to be announced.
View source material to read more
China’s private space sector builds 6G infrastructure
The SatNews website reports that China’s private space sector is expanding beyond rocket development into a vertically integrated ecosystem spanning satellite constellations, in-orbit computing and reusable launch systems. The Spacesail (Thousand Sails/G60) constellation has entered an operational phase, with Airbus partnering to integrate its LEO connectivity into in-flight solutions. These constellations are described as core components of China’s integrated space-air-ground 6G network.
What’s new: The China Aerospace Science and Technology Corporation (CASC) has announced plans for gigawatt-class “space digital-intelligence infrastructure” within five years, integrating cloud, edge and terminal computing in orbit. GuoXing Aerospace has deployed large language models on operational satellites for in-orbit reasoning. Space Epoch broke ground in January on a 5.2 billion yuan rocket production facility in Hangzhou capable of producing 25 reusable rockets annually.
Why this matters: The in-orbit computing dimension is genuinely new and significant. The transition from satellites as passive data relay to platforms capable of processing data in orbit could fundamentally change the NTN architecture. However, ambition should be weighed against reality. As 6G Futures noted when covering China’s 200,000-satellite ITU filings in our 23 January newsletter, these figures represent capacity ceilings rather than committed build plans. The Airbus-Spacesail partnership for aviation connectivity is a concrete commercial milestone, but much of the broader vision remains in early stages.
Implications for 6G standards: China’s commitment to satellite-terrestrial convergence aligns with 3GPP’s direction for NTN in Release 21. The in-orbit computing concept, if realised, would introduce architectural requirements that go beyond current NTN specifications, which primarily focus on communications relay. Chinese companies led by Huawei, ZTE and China Mobile are among the most prolific 3GPP contributors, and their constellation buildout will inform their technical contributions.
View source material to read more
Quantum-inspired optical wireless targets 6G indoor networks
Researchers at Monash University and the University of Melbourne have developed a quantum-inspired approach to optical wireless communication that they claim could make 6G networks faster, more reliable and more energy-efficient in dense indoor environments. The research, published in IEEE Communications Letters, uses modular optical phased arrays informed by quantum design principles. Professor Malin Premaratne said:
“It’s about making the next generation of devices and networks actually deliver on the promise of 6G — speed, reliability and energy efficiency — so people notice the difference in their everyday lives.”
What’s new: The system uses a “many-as-one” principle inspired by quantum superradiance, where multiple small optical emitters synchronise to behave like a single powerful, directed source. This enables scalable beamforming for optical wireless links. Professor Thas Nirmalathas of the University of Melbourne said the approach allows networks to “focus signals precisely where they are needed, reduce interference through polarisation control, improve energy efficiency, and scale easily without redesigning entire networks.” The research was funded under the Australian Research Council Discovery programme.
Why this matters: Indoor wireless performance is one of the persistent weak points of cellular networks. As 6G targets potential use cases including chip-to-chip communication, smart building automation and data centre connectivity, optical wireless offers a complementary path to RF-based approaches. The emphasis on energy efficiency and reduced heat generation addresses practical deployment constraints. However, this remains early-stage university research and the path to commercial product in optical wireless has historically been long.
Implications for 6G standards: Optical wireless communication sits largely outside the current scope of 3GPP specifications, which focus on RF-based systems. If the technology matures, it could become relevant as a complementary access technology or as part of the “network of networks” concept that several 3GPP 6G Workshop submissions advocated.
View source material to read more
Selected research papers published this week
Multi-agent reinforcement learning boosts 6G beamforming
Ali Al Janaby presents a beamforming algorithm for multi-user MIMO systems using multi-agent reinforcement learning (MARL). Each base station runs independent RL algorithms that coordinate to prevent inter-user interference while optimising signal quality. Simulation results show a two-fold improvement in throughput and significant gains in signal-to-interference-plus-noise ratio. Published in MDPI Sensors.
Why this matters: AI-driven beamforming is a core enabler of the spectral efficiency gains required for 6G. The multi-agent approach, where base stations learn cooperatively, addresses the practical challenge of inter-cell interference management in dense deployments. This aligns with the AI-native RAN architecture that is a central theme of 3GPP 6G standardisation.
View source material to read more
Movable and reconfigurable antennas unlock new 6G design space
A research team led by Rui Zhang has published a comprehensive overview in Nature Communications Engineering of movable antennas (MAs) and reconfigurable antennas (RAs) for 6G. These technologies enable dynamic control over antenna position, orientation, radiation pattern and polarisation, introducing electromagnetic-domain degrees of freedom that complement traditional digital signal processing. Field tests and simulations demonstrate performance advantages over conventional fixed antennas.
Why this matters: As MIMO scales to the extremely large arrays envisioned for 6G (XL-MIMO), hardware complexity and power consumption become critical constraints. Movable and reconfigurable antennas offer a potential path to achieving similar performance gains with fewer active elements, directly addressing the energy efficiency and sustainability priorities that dominate 3GPP 6G Workshop submissions.
View source material to read more
Dual RIS framework for reliable 6G IoT via non-terrestrial networks
Muddasir Rahim and Soumaya Cherkaoui propose a two-tier Reconfigurable Intelligent Surface (RIS) framework for IoT communications in 6G non-terrestrial networks. The system combines terrestrial RIS with HAPS-mounted RIS to maintain connectivity under severe line-of-sight blockages. A joint beamforming, power allocation and device association algorithm approaches exhaustive search performance with substantially lower computational complexity. Published on arXiv.
Why this matters: This research addresses a practical gap in NTN architecture: how to maintain reliable IoT connectivity when direct paths to satellites or base stations are blocked. The combination of terrestrial and HAPS-mounted RIS creates a multi-layer coverage approach that aligns with the 3D network architectures advocated in multiple 3GPP 6G Workshop submissions.
View source material to read more
Deep reinforcement learning for satellite-terrestrial network resilience
Dinh-Hieu Tran and colleagues propose a resilience optimisation framework for integrated satellite-terrestrial networks (ISTNs) in 6G, using LEO satellites to maintain service when terrestrial base stations fail. A deep Q-network algorithm learns to maximise throughput while minimising LEO satellite usage to preserve satellite lifetime. Published on arXiv.
Why this matters: Network resilience during infrastructure outages is a growing concern for operators and governments alike. The framework’s approach of using satellite backup dynamically, rather than as permanent infrastructure, reflects the practical economics of NTN where satellite capacity is expensive and latency-constrained.
View source material to read more
Dual connectivity challenges in 6G LEO constellations
Achilles Machumilane and Alberto Gotta provide a mathematical framework for calculating packet loss in dual connectivity scenarios within LEO satellite constellations. The paper examines how techniques including packet duplication, switching and network coding perform when paths exhibit different delays, as occurs in multi-orbit or mixed terrestrial-satellite networks. Published on arXiv.
Why this matters: Dual connectivity is a proven technique for enhancing throughput in 5G, but its application to LEO constellations introduces new challenges from rapid topology changes and variable path delays. As 6G targets seamless TN-NTN integration, understanding these packet-level performance characteristics is essential for designing effective traffic scheduling policies.