5G’s Next Act Is About Monetization, While 6G Builds on the 5G Foundation

5G moves from coverage to economic discipline

The telecom industry is entering a more disciplined phase of mobile network investment. Much of the early 5G buildout in developed markets is complete, and operators are now prioritizing capacity, efficiency and monetization over nationwide coverage. TBR expects global communication service provider (CSP) investment in 5G infrastructure to grow only incrementally, driven primarily by fixed wireless access (FWA), 5G-Advanced and 5G standalone (SA), while initial commercial 6G deployments could begin as soon as 2029. The transition is an evolution as operators seek to extract more value from existing 5G assets while preparing those same networks to support 6G.

FWA leads, but 5G SA remains the monetization bottleneck

FWA remains the clearest source of net-new 5G revenue. According to Ericsson’s June 2026 Mobility Report, there are 175 service providers globally offering 5G FWA, and TBR projects more than 400 million residential and commercial premises will be covered by 5G FWA by the end of 2029. FWA subscriber growth is prompting operators to add dedicated capacity, spectrum and network optimization as the excess mobile capacity that supported early FWA deployments is consumed.
 
The larger challenge is 5G SA. Of approximately 390 CSPs with commercial 5G, only about 90, or 23%, had launched 5G SA as of June 2026. This slow migration limits operators’ ability to monetize new capabilities such as network slicing, RedCap (Reduced Capability) and ultra-low-latency services. Commercial slicing is expanding into premium mobile, public safety, FWA, transportation and live events, but direct revenue remains minimal as most services are bundled into higher-tier plans.

5G-Advanced and AI-RAN create a bridge to 6G

Rather than triggering another broad hardware replacement cycle, 5G-Advanced will emphasize software, Massive MIMO and AI-enabled optimization. For example, AI for RAN is emerging as the first commercial AI-RAN opportunity, using AI to improve channel estimation, beam management, traffic forecasting and energy efficiency. Most deployments remain proofs of concept or field trials in 2026, with initial commercial deployments expected in 2027 and more meaningful vendor revenue beginning in 2028 and beyond. Nokia estimates AI-RAN could improve spectral efficiency by more than 2x by 2028.
 
These investments also establish the technical foundation for 6G. 3GPP (3rd Generation Partnership Project) Release 20 standards, expected in 2027, will continue 5G-Advanced development while studying 6G architecture, spectrum, AI integration and integrated sensing and communication (ISAC). 3GPP Release 21 is expected to establish the first formal 6G specifications, with final protocols in March 2029. TBR expects 6G to rely heavily on software upgrades to existing 5G radio and core infrastructure, supplemented by new spectrum, radios, accelerated computing and edge infrastructure.

6G broadens the operator opportunity beyond connectivity

The most important 6G shift will be commercial, not generational. ISAC can turn communications networks into sensing platforms capable of identifying location, velocity, elevation and moving objects, creating opportunities in drone detection, border security, transportation, industrial automation and emergency response. Importantly, operators do not need to wait for 6G as usable ISAC solutions can leverage 5G-Advanced and 5G core, with trials already underway and commercial deployments expected to begin in 2027.
 
National security could become an especially important catalyst for 6G as governments seek better ways to monitor lower airspace, where drones can evade traditional radar systems. ISAC can reuse much of the existing cellular infrastructure, including sites, spectrum, transport and some radios, but applications such as drone detection will require better elevation-domain coverage and investments in beamforming, sensing software, signal processing and edge computing. This creates incremental RAN investment opportunities while potentially allowing operators to monetize sensing data alongside distributed AI inference, network intelligence and APIs.
 
The commercial model remains uncertain. CSPs could operate sensing services themselves, while governments and militaries may deploy private ISAC systems that are at least partly co-located with commercial networks. Either model expands telecom infrastructure beyond carrying traffic toward networks that can also observe and interpret the physical environment.

TBR perspective: 6G will reward operators that finish the 5G job

TBR believes the path to 6G runs directly through unfinished 5G work. Operators that expand 5G SA, improve spectrum efficiency, commercialize differentiated connectivity and build programmable, AI-ready networks will be better positioned for an economical 6G migration. FWA will remain the near-term revenue anchor, but longer-term value will increasingly depend on whether CSPs can turn AI, sensing and network capabilities into standardized services that enterprises and governments can easily buy. The transition to 6G is about proving that operators can finally monetize the capabilities 5G was designed to enable.