c-i-a.com
1997 · 1991 · ITU Region 1

About

What this site covers

The IEEE 802.11 and 3GPP standards, the spectrum they use, and the committees that write them.

A cell site headframe against flat overcast sky
A cell site headframe. Everything mounted on it was specified in a document before it was manufactured.
Photo: Cell Tower Ciudad del Carmen2020 · Wikimedia Commons

Wireless standards are written, balloted and published. They carry version numbers, amendment letters and ratification dates, and the equipment that implements them follows some distance behind. This site follows those two lines — IEEE 802.11 from 1997, and the 3GPP cellular line from GSM in 1991 — and the spectrum decisions that constrain both.

The five sections

  • Two lines of descent — 802.11 from 1997, and cellular from 1991.
  • The part nobody sees — Bands, regions, auctions and why phones differ by country.
  • Who actually decides — IEEE, 3GPP, the ITU and the alliances that name things.
  • What has to implement it — Antennas, front ends, chipsets and the physical limits.
  • In order, with dates — From 1991 to Wi-Fi 7.

Speeds, channel widths, band edges and dates are taken from the standard itself or from the regulator that set them. Where a figure is a maximum defined under best-case conditions, the page says so.

Reaching everything

Each of the five sections has a landing page reachable from the menu at the top of every page. The archive lists all twenty guides in one place.