AT&T unveils plan for multi-gigabit Internet delivered over shaped radio transmissions that are guided by power lines; field trials set for in 2017
Urban, Rural and Underserved Parts of the World Could Benefit from AT&T's Innovative Wireless, Multi-Gigabit-Speed Internet Connectivity …
Context & Ripple Effects
This announcement caps a year of escalating fixed-wireless ambition at AT&T: after testing rural wireless broadband at just 15-25 Mbps in late 2015, the carrier now claims a path to multi-gigabit speeds by shaping radio transmissions along power lines — reusing grid infrastructure instead of trenching fiber. The millimeter-wave startup Starry had already shown by early 2016 that gigabit-class wireless struggles with range and reliability, which is the technical bar this power-line-guided approach has to clear.
The follow-through was cautious: AT&T began Georgia trials delivering high-speed internet over power lines in late 2017 but gave no commercial deployment timeline, and by 2022 its headline speed record came from a production fiber network hitting 20 Gbps rather than from the wireless scheme.
First-order effects
- AT&T commits to 2017 field trials aimed at urban, rural, and underserved markets, making power-line-guided radio a candidate to reach customers where fiber trenching is uneconomical.
Second-order effects
- Utilities and grid operators become potential access partners, since the architecture only works where AT&T can ride their power lines — a new bargaining layer between carriers and infrastructure owners.
- Fixed-wireless competitors like Starry face a carrier-scale rival attacking the same gigabit-wireless market they have struggled to serve reliably.
Third-order effects
- If the pattern holds, broadband delivery consolidates around hybrid access fabrics that blend guided wireless over existing infrastructure with fiber backbones — though AT&T's own trajectory, from no commercial timeline in Georgia to a 20 Gbps fiber record, suggests fiber remained the endgame and power-line wireless the hedge.
The trend: Broadband access is evolving toward hybrid architectures that reuse existing infrastructure like power lines, with fiber emerging as the long-term speed ceiling.