6G is the common name for the next generation of mobile communications after 5G. In the International Telecommunication Union process it is called IMT-2030. It is being researched and standardized; it is not a finished global standard or a widely available commercial service.
The short definition
6G describes a future mobile system intended to extend connectivity beyond today’s 5G and 5G-Advanced networks. The work includes radio interfaces, network architecture, spectrum, computing, sensing, security and ways to embed artificial intelligence into communication systems.
The label does not describe one existing frequency band, one speed or one product. A complete generation emerges through several layers: an international framework, technical requirements, candidate technologies, evaluation, 3GPP specifications, equipment, spectrum decisions and commercial deployment.
Does 6G exist today?
Research platforms, component demonstrations and pre-standard trials exist. Those activities are valuable, but they are not the same as an interoperable commercial 6G network. As of September 12, 2026, there is no globally standardized, widely deployed commercial 6G service.
ITU-R published the IMT-2030 framework in 2023. Working Party 5D completed draft technical performance requirements in February 2026 and draft evaluation guidelines in June 2026; both were sent to the parent study group for expected consideration in December 2026. 3GPP’s Release 20 work includes 6G studies, while Release 21 is expected to begin the first normative 6G specifications.
What is 6G expected to support?
ITU’s IMT-2030 framework defines six usage scenarios. They describe areas that standards work should consider, not a promise that every operator or device will deliver every capability.
- Immersive communication: richer interactive media and extended-reality experiences.
- Hyper-reliable and low-latency communication: communication for demanding control and coordination tasks.
- Massive communication: very large numbers of connected devices.
- Ubiquitous connectivity: broader coverage across locations and network types.
- Artificial intelligence and communication: communication that supports AI workloads and networks that use AI.
- Integrated sensing and communication: radio systems that can communicate and sense aspects of their environment.
How 6G relates to 5G
6G will not make 5G disappear on a launch date. Mobile generations overlap for years. 5G-Advanced introduces improvements through later 3GPP releases and provides an engineering bridge toward some concepts being studied for 6G.
The useful comparison is therefore not “old network versus a magic replacement.” It is a progression: deployed 5G, continuing 5G-Advanced improvements, early 6G studies, formal specifications, product development and phased deployment.
What remains unknown
Final spectrum arrangements, device capabilities, deployment economics and real-world user performance are not yet settled. Research papers often explore upper-bound possibilities under controlled assumptions. Marketing announcements may use “6G” for a testbed or component before an end-to-end standard exists.
When reading a claim, ask whether it concerns a simulation, laboratory demonstration, field trial, draft requirement, completed specification or commercial service. Those labels reveal more than a headline number.
Sources and further reading
- ITU-R: IMT towards 2030 and beyond
- Recommendation ITU-R M.2160: IMT-2030 framework
- 3GPP release status
Last reviewed: September 12, 2026. Standards and research programs change; follow the linked primary sources for the latest formal status.