The Wi-Fi Alliance is working on a new Extreme High Throughput (EHT) specification that promises to provide an increase in throughput by a factor of four, while also improving efficiency and latency. The new spec aims to put a new process in place to get a two-year cadence for new WiFi versions, as the 802.11ax spec took over four years to finalize due to a variety of complexities. The new EHT spec may be the first to support the 6GHz band, which is expected to be cleared by 2020 for unlicensed use. EHT aims to use up to 320MHz channels in the 6GHz band.
Developers hope the 6 GHz band is cleared by 2020 for unlicensed use that would include both Wi-Fi and cellular. Wi-Fi proponents aim to retrofit 802.11ax for 6 GHz by that time and have an enhanced 6 GHz implementation available with EHT by 2023.
The EHT initiative comes on the heels of disappointment over the longer than expected time it took to finish the latest Wi-Fi upgrade. The .11ax spec, just now coming to market in pre-standard versions, took more than four years to finish, one of the longest 802.11 projects to date.