ITU IMT-2030 Vision: Defining the Requirements for 6G

Introduction

The International Telecommunication Union (ITU), a specialized agency of the United Nations, plays a unique role in global telecommunications: it defines the overarching vision, requirements, and evaluation criteria for each generation of mobile technology. For 6G, this role is embodied in the IMT-2030 framework — the successor to IMT-2020 (5G) — which establishes what 6G must achieve to earn its generational designation.

Six Usage Scenarios

The ITU-R Working Party 5D has defined six usage scenarios for IMT-2030, expanding from 5G's three (eMBB, URLLC, mMTC):

1. Immersive Communication: Supports holographic telepresence, multi-sensory extended reality (XR), and collaborative virtual environments. Requires peak data rates exceeding 100 Gbps with latency below 1 ms and extreme reliability.

2. Hyper-Reliable and Low-Latency Communication: Enables mission-critical applications including remote surgery, industrial automation, and autonomous vehicle coordination with reliability up to 99.99999% and sub-0.1 ms latency.

3. Massive Communication: Supports ultra-dense IoT deployments with up to 10 million devices per square kilometer, including ambient IoT devices powered by energy harvesting.

4. Ubiquitous Connectivity: Provides seamless coverage across terrestrial, aerial, maritime, and space environments through integration of satellite, HAPS, and ground-based networks.

5. AI and Communication: Integrates AI as a native component of the network, supporting both AI-optimized network operations and the network as a platform for distributed AI services.

6. Integrated Sensing and Communication: Enables the network to simultaneously serve as a communication system and a sensing platform, detecting objects, measuring environments, and building spatial awareness.

Key Capability Targets

IMT-2030 defines quantitative targets that candidate technologies must meet or exceed. These represent significant advances over IMT-2020 (5G) capabilities:

Capability	IMT-2020 (5G)	IMT-2030 (6G)
Peak Data Rate	20 Gbps	200+ Gbps
User Experienced Rate	100 Mbps	1 Gbps
Latency	1 ms	0.1 ms
Connection Density	10^6/km²	10^7/km²
Area Traffic Capacity	10 Mbps/m²	100+ Mbps/m²
Energy Efficiency	Baseline	100x improvement

The Evaluation Process

The ITU evaluation process follows a structured timeline. Candidate radio interface technologies (RITs) or sets of RITs (SRITs) are submitted by proponent organizations, evaluated against the defined requirements through simulation and analysis, and ultimately approved through consensus. For 6G, the call for proposals is expected around 2028-2029, with evaluation and approval following in 2030-2031.

Global Implications

The IMT-2030 framework has profound implications for the global telecommunications industry. It creates a common reference point for national regulators making spectrum allocation decisions, for equipment manufacturers designing products, and for operators planning network evolution. Countries that align their national 6G programs with the IMT-2030 framework gain smoother paths to global interoperability and market access.

Conclusion

The ITU's IMT-2030 framework provides the authoritative international definition of what 6G must be. Its six usage scenarios and quantitative capability targets set the bar for the entire industry. As national research programs and standards bodies work toward 6G, the IMT-2030 framework serves as the north star guiding this global effort.