Section 02
Standards & Generations
Who writes the rules and what changed when. What each generation actually changed, and how the documents that define it come to exist.
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02.1
What Each Generation Actually ChangedFrom circuit-switched voice to packet everything — the real shifts.
By Spectrum Notes
8 min read -
02.2
The Protocol Stack, Layer by LayerWhat each layer owns, and why the split exists at all.
By Spectrum Notes
3 min read -
02.3
How a Standard Gets WrittenWorking groups, releases and why interoperability is the whole point.
By Spectrum Notes
2 min read
From the same section
3 explainers filed here
Standards & Generations
What Each Generation Actually Changed
From circuit-switched voice to packet everything — the real shifts.
Standards & Generations
The Protocol Stack, Layer by Layer
What each layer owns, and why the split exists at all.
Standards & Generations
How a Standard Gets Written
Working groups, releases and why interoperability is the whole point.
Other sections
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01
The Air Interface
What happens between antenna and antenna.
- What Actually Travels Between a Handset and a Mast
- Modulation, Plainly
- What an Antenna Is Doing
- Noise, Interference and the Floor
Critical Communications
Networks built to work on the worst day.
- Why Critical Networks Are Built Differently
- Push-to-Talk and Group Calls
- Designing for the Bad Day
Spectrum & Networks
Dividing the airwaves and covering ground.
- How Spectrum Gets Divided
- Why Physics Changes With Frequency
- Cells, Reuse and Handover
Devices & Deployment
The terminal and the site.
- What Is Inside the Terminal
- Putting a Network on the Ground