China Approves 6GHz Spectrum for 6G Trials, Launching a New Era of Technological Sovereignty

Policy Anchors Technological Sovereignty: Approval of 6G Trial Spectrum Ushers in a New Era of Generational Leap in Telecom Infrastructure

The Ministry of Industry and Information Technology (MIIT) has officially approved the use of the 6 GHz band for 6G technology R&D trials by the IMT-2030 Promotion Group—a seemingly routine administrative licensing decision that, in reality, marks a pivotal watershed in China’s evolution of information infrastructure. It signals that China’s 6G development has fully transitioned from the “paper-based phase” of global standard-setting competition into the “real-world validation and攻坚 (intensive technical breakthrough) phase” within authentic physical environments. Unlike the 5G era—where commercial deployment drove R&D—the targeted, concentrated, and high-priority allocation of the 6 GHz spectrum reflects a proactive national strategic intent to guide technological pathways and prioritize resource allocation. Its underlying logic extends far beyond a mere generational upgrade in communications; it aims instead at systematically establishing digital sovereignty, industrial leadership, and security autonomy over the next decade.

Spectrum Is Sovereignty: The Strategic Depth of the 6 GHz License Extends Far Beyond Technical Parameters

The 6 GHz band (5925–7125 MHz) has been designated by the International Telecommunication Union (ITU) as a leading candidate primary band for 6G, offering a “golden balance”: ultra-wide contiguous bandwidth (>1.2 GHz), moderate propagation loss, and relatively strong penetration capability. MIIT’s approval is no generic “research license.” Rather, it explicitly designates the IMT-2030 Promotion Group—the national-level consortium led by MIIT and comprising China’s three major telecom operators, Huawei, ZTE, Datang Telecom, Southeast University, and other core entities—to conduct trials. This group bears the national mandate to define the 6G vision, select key technologies, and conduct pre-standardization research. Consequently, these trials will directly feed into the construction of China-led 6G standard frameworks—especially targeting three strategic frontiers:

• Terahertz (THz) Communications (overcoming device bottlenecks above 100 GHz);
• Integrated Sensing and Communication (ISAC) (enabling centimeter-level positioning and micro-motion recognition via convergence of comms and sensing);
• All-Domain Coverage Across Air, Space, Terrestrial, and Maritime Domains (seamless coordination among LEO satellites, high-altitude platforms, ocean buoys, and terrestrial base stations).
  Securing spectrum access first is, in essence, seizing the starting line for influence over core physical-layer protocols in future 6G standards.

Industry-Chain Resonance: Full-Stack Catalysis—from RF Front-Ends to AI-Native Networks

Policy signals are rapidly cascading across the entire value chain, generating structural investment opportunities:

• Base Station RF Front-Ends Under Generational Restructuring: Operation at 6 GHz and higher frequencies demands significant performance leaps in critical components—including GaN power amplifiers, high-performance filters (BAW/FBAR), and tunable antenna modules. Against the backdrop of accelerated domestic substitution, Chinese firms such as Maxscend Microelectronics, HiSilicon Microelectronics (Huizhiwei), and San’an Optoelectronics are entering crucial validation windows.

• Satellite Internet as a Hard Requirement: Under the air-space-terrestrial-maritime integrated architecture, massive phased-array user terminals and high-speed satellite-to-ground data transmission equipment are indispensable for LEO constellations. Accelerated deployment by China Satellite Network Group (China SatNet), coupled with 6G ISAC requirements, is significantly improving order visibility for companies including Hefei T&W Electronics (Hewei Tech) and Chengchang Technology.

• Accelerated Commercialization of Millimeter-Wave/THz Devices: Real-world trial data on the 6 GHz platform is fast-tracking industrialization of Si-based CMOS and InP HBT process routes. Although short-term sentiment weighed on Hong Kong-listed semiconductor stocks—e.g., the Hang Seng Tech Index fell >1% intraday, with SMIC and Hua Hong Semiconductor down >4%—their accumulated expertise in RF SoCs and mmWave IP cores is now approaching a critical inflection point for value realization.

• AI-Native Network Architecture as the Implicit Main Thread: 6G networks require deep AI integration across all functional layers—channel prediction, resource scheduling, self-healing fault recovery, etc. Kunlun Chip’s dual-track listing plan (Hong Kong + Sci-Tech Innovation Board tutoring) serves precisely as a capital engine for such “network-intelligence chips.” Its proprietary XPU architecture has already undergone operator pilot verification in base station AI inference and network digital twins. Policy catalysis positions Kunlun Chip to become foundational hardware for the AI-for-Network (AI4Net) paradigm.

Rebalancing Market Sentiment and Long-Term Logic: “Specialized, Sophisticated, Novel, and Innovative” Firms Enter a Policy Inflection Point

Short-term market dynamics reflect a classic sentiment mismatch: A-share indices opened lower, with the ChiNext Index briefly plunging >1% (opening at 3792.04), and the STAR 50 Index falling 1.52%; Hong Kong’s tech sector likewise faced pressure, pushing the Hang Seng Tech Index’s intraday decline to 1%. Such volatility stems largely from macro variables—renewed Fed rate-hike expectations and geopolitical frictions—not from any reversal in industry fundamentals. Notably, Kunlun Chip is advancing its Hong Kong IPO while proactively filing for STAR Market tutoring—confirming that “dual-track listing” has become a rational choice for hard-tech enterprises: leveraging Hong Kong’s international liquidity while anchoring to A-share policy incentives for specialized, sophisticated, novel, and innovative (“Xin Zhuan Te Jing”) firms. This strategy closely mirrors those of Zhipu AI and Biren Technology, underscoring an unshaken long-term consensus in capital markets regarding the imperative of foundational technological autonomy—even amid short-term turbulence.

Against this backdrop, thematic ETFs and Xin Zhuan Te Jing firms are entering a clear policy-catalyzed inflection point. First, fund flows into niche ETFs—such as those tracking “telecom equipment,” “semiconductor equipment,” and “satellite navigation”—are showing marginal improvement. Second, Xin Zhuan Te Jing “Little Giants” with strategic moats in 6G-critical domains—e.g., THz detectors, ISAC algorithms, or LEO-satellite phased-array T/R modules—are undergoing valuation re-rating: shifting from purely financial metrics toward a “technological sovereignty premium.” MIIT’s spectrum allocation, in essence, leverages state credibility to endorse technological pathways—dramatically lowering innovation risk and commercialization uncertainty.

Conclusion: From “Building Networks” to “Laying Foundations”—The Battle for Next-Generation Information Sovereignty Has Begun

The approval of 6 GHz trial spectrum is far more than an internal industry notice about technical iteration—it is a declaration of strategic upgrade for China’s national information infrastructure. It heralds China’s use of “spectrum sovereignty” as a fulcrum to drive full-stack innovation spanning chip design, materials & processes, network architecture, and application ecosystems. While markets remain preoccupied with SMIC’s Hong Kong share price fluctuations, they should instead recognize the irreplaceable role of its mature-node (28 nm and above) processes in 6G base station power management ICs and RF switches. Likewise, Kunlun Chip’s dual-track listing must be understood not merely as a financing move—but as a manifestation of sovereign demand for foundational computing power underpinning AI-driven network intelligence. At its core, this generational leap transcends “building a faster network”; it ascends to “constructing a digitally sovereign, intelligently native, and all-domain-covering foundational infrastructure.” Policy-driven certainty is now unmistakable; industrial resilience and innovative momentum are converging at accelerating pace—the new high ground of information sovereignty is quietly taking shape within the electromagnetic waves of the 6 GHz band.