South Korea's 6G-7G Roadmap: First to 6G, First to 7G?

South Korea was first to launch commercial 5G in April 2019. Now the country is racing to repeat that distinction with 6G — and already laying the groundwork for what comes after. This analysis is produced by the 7G Network editorial team, specializing in next-generation wireless technology tracking and policy analysis since the pre-5G era. The Korean government's strategy is the most aggressive national 6G program in the world, backed by hundreds of millions of dollars in public funding and a domestic industry ecosystem that includes Samsung, SK Telecom, KT, and LG U+.

The National 6G Strategy

South Korea's Ministry of Science and ICT (MSIT) has committed over $650 million in public funding for 6G R&D from 2024 to 2028, targeting commercial 6G launch by 2028-2029 — approximately 1-2 years ahead of the global consensus timeline of 2030-2032.

In November 2023, South Korea's Ministry of Science and ICT (MSIT) unveiled its 6G R&D Promotion Strategy, committing KRW 440 billion (approximately $324 million) from 2024 to 2028. This built on a previous KRW 220 billion ($160 million) investment announced earlier. Total government funding for 6G now exceeds $650 million.

The investment targets five key areas:

• Wireless communications: Sub-THz hardware, AI-native radio, advanced modulation
• Mobile core network: Cloud-native architecture, network slicing, edge computing
• Wired networks: Ultra-high-capacity backhaul to support 6G base stations
• Systems integration: End-to-end testbeds and pre-commercial trials
• Standardization: Active leadership in 3GPP and ITU working groups

The explicit target: pre-6G technology ready by 2026, commercial launch by 2028-2029. This is 1-2 years ahead of the global consensus timeline of 2030-2032, and it would require deploying equipment based on pre-standard specifications — exactly the approach South Korea used with 5G. For context on how the global 6G standardization timeline compares, Korea's schedule is notably accelerated.

2026: The Pre-6G Demonstration Year

MSIT's "Pre-6G Vision Fest" in 2026 will showcase sub-THz prototypes above 100 GHz, AI-native RAN demonstrations, integrated sensing and communication proof-of-concepts, and non-terrestrial network integration with LEO satellites.

2026 is a milestone year in Korea's 6G roadmap. MSIT will host the "Pre-6G Vision Fest" — an international event inviting telecom companies, equipment manufacturers, standards experts, and government officials to witness Korean 6G research outcomes.

The event will showcase:

• Sub-THz prototype systems operating above 100 GHz
• AI-native RAN demonstrations with real-time inference
• Integrated sensing and communication (ISAC) proof-of-concepts
• Non-terrestrial network integration with LEO satellite links

Pre-6G pilot projects are also commencing in 2026, offering vendors an opportunity to deploy "future-ready" hardware that can be software-upgraded to the final 6G standard — a strategy that de-risks early deployment by decoupling hardware investment from standards completion.

The 6G Society

In July 2024, MSIT established the "6G Society" — a cross-sector body uniting over 30 experts from mobile and satellite communications. Its mission is to dominate 6G standards and expedite market readiness.

The 6G Society's focus on satellite-terrestrial integration reflects Korea's bet that 6G will not be purely terrestrial. The vision is "hyper-space communication" — seamless connectivity across land, sea, air, and low Earth orbit, with a single device transitioning between terrestrial base stations and satellite links without interruption.

Samsung: The Hardware Engine

Samsung Electronics, in collaboration with UC Santa Barbara, has developed a 6G THz wireless communication prototype operating in the 140 GHz band, and is the global leader in 5G massive MIMO base station shipments — positioning the company for 6G holographic MIMO development.

Samsung Electronics is Korea's primary vehicle for 6G hardware research. The Samsung Advanced Institute of Technology and Samsung Research have produced several significant milestones:

THz prototype systems: Samsung, in collaboration with UC Santa Barbara, developed a 6G THz wireless communication prototype operating in the 140 GHz band. The system demonstrated data rates exceeding 6G targets over indoor distances, proving that the fundamental physics of sub-THz communication works in practice, not just simulation.

6G white papers: Samsung has published three comprehensive 6G vision papers (2020, 2021, 2023), each laying out architectural principles that have directly influenced 3GPP study items. Samsung's vision emphasizes AI-native communication, hyper-connected experiences, and massive machine-type communication with ambient IoT devices.

Massive MIMO leadership: Samsung is the global leader in 5G massive MIMO base station shipments. This gives the company a direct path to 6G holographic MIMO — scaling from hundreds to thousands of antenna elements using its existing manufacturing infrastructure.

Operators: Ambition Meets Pragmatism

Korean operators SK Telecom, KT, and LG U+ are shifting from nationwide 6G rollout to a hotspot-focused strategy targeting industrial districts, dense urban corridors, and specialized venues — prioritizing return on investment after learning from costly 5G coverage buildouts.

Korea's three major operators — SK Telecom (SKT), KT, and LG U+ — publicly support the government's 6G timeline, but their investment posture is more cautious than the government's rhetoric suggests.

The operators learned expensive lessons from 5G. According to the Korea Information Society Development Institute (KISDI, 2024), Korea invested heavily in nationwide 5G coverage, but consumers largely viewed the improvements as table stakes — faster speeds, but not enough to justify premium pricing. 5G ARPU (average revenue per user) gains have been modest.

For 6G, the operators are advocating a hotspot-focused strategy rather than nationwide rollout:

• Industrial districts: Factories, ports, and logistics hubs where 6G's ultra-reliability and sensing capabilities justify the infrastructure cost
• Dense urban corridors: Business districts and transportation hubs with high user density
• Specialized venues: Stadiums, convention centers, and hospitals with extreme capacity or latency requirements

This approach prioritizes return on investment over coverage bragging rights — a significant strategic shift from the 5G era. Similar lessons from the 5G era are shaping 6G strategies globally.

Performance Targets

South Korea's official 6G performance targets, according to MSIT (2023), are among the most ambitious globally:

• Speed: Up to 50x faster than current 5G — implying peak rates of 1 Tbps
• Latency: One-tenth of 5G latency — sub-millisecond, targeting 0.1 ms
• Connection density: Support for millions of devices per square kilometer (ambient IoT)
• Energy efficiency: 100x improvement in bits per joule versus 5G
• Positioning accuracy: Centimeter-level indoor localization via integrated sensing

The 7G Question

Korea's Institute of Information & Communications Technology Planning & Evaluation (IITP) has funded THz transceiver research above 300 GHz — targeting 7G use cases — since 2022, while Samsung Research has published papers on holographic MIMO and semantic communication, core technologies in the anticipated 7G stack.

South Korea has not published a formal 7G research program, but several signals indicate early positioning:

Korea's Institute of Information & Communications Technology Planning & Evaluation (IITP) has funded THz transceiver research targeting 7G use cases since 2022 — specifically, devices operating above 300 GHz in the true terahertz band that 7G is expected to use.

Samsung's research labs have published papers on holographic MIMO and semantic communication — technologies universally associated with 7G rather than 6G. While these are presented as "beyond 6G" research, they align precisely with the 7G technology stack.

The strategic logic is straightforward: South Korea's national competitiveness depends on telecommunications leadership. Being first to 5G created a domestic industry advantage. Being first to 6G would sustain it. And building 7G research into the 6G development cycle — rather than waiting for 6G to complete — would position Korea to lead the subsequent transition.

If any country publishes a formal 7G research roadmap in the 2027-2030 window, it will almost certainly be South Korea.

Risks and Challenges

South Korea's aggressive 6G timeline carries risks: pre-standard deployment may require costly equipment upgrades, consumer demand for 6G improvements is uncertain after modest 5G ARPU gains, and WRC-27 spectrum decisions could affect Korea's frequency allocation plans.

Pre-standard deployment risk: Launching 6G before the 3GPP standard is finalized means early equipment may require costly upgrades or replacement. Korea accepted this risk with 5G (early non-standalone deployments later needed standalone upgrades), and the cost was not trivial.

Consumer demand uncertainty: Korean consumers are among the most digitally sophisticated in the world, but they were largely indifferent to 5G's speed improvements. If 6G cannot deliver visibly different experiences — not just faster versions of existing apps — the business case weakens.

Geopolitical positioning: Korea must navigate between US and Chinese technology ecosystems. Korean vendors sell to both markets, and a fragmented 6G standard would force difficult choices about which ecosystem to prioritize.

Spectrum availability: Key 6G spectrum decisions will be made at WRC-27. Korea's spectrum roadmap depends on international coordination that is not guaranteed.

What to Watch

For anyone tracking the global 6G race, South Korea offers the clearest milestones:

• 2026: Pre-6G Vision Fest and pilot project results — do the demonstrations meet performance claims?
• 2027: WRC-27 spectrum decisions — does Korea secure the bands its 6G plan requires?
• 2028: Targeted pre-commercial launch — does it happen, and with what coverage?
• 2029-2030: Commercial 6G — is Korea genuinely first, or does the timeline slip to align with the global schedule?

Korea's track record suggests the timeline is ambitious but not unrealistic. The infrastructure ecosystem, government commitment, and domestic industry capability are all in place. Whether the market — operators and consumers — will follow at the same pace is the open question.

Sources

1. MSIT, "6G R&D Promotion Strategy," November 2023 — msit.go.kr
2. Samsung Research, "6G: The Next Hyper-Connected Experience for All," 2023 — research.samsung.com
3. IITP, "THz Transceiver Research Program for Beyond-6G," 2022 — iitp.kr
4. KISDI, "5G Economic Impact Assessment and 6G Outlook," 2024 — kisdi.re.kr
5. SK Telecom, "World's First 5G Commercial Launch," April 2019 — sktelecom.com
6. 3GPP, "Release 20 Work Plan and Study Items," 2025 — 3gpp.org