School of Specs Sensing — the network as a radarIn depth

149 checked sources · In depth · 105 minutes

Sensing — the network as a radar

A mobile network already fills a room with radio. Sensing is the idea that the same radio can be read back to say what is in the room — where an object is, how big it is, how fast it is moving — even when that object carries no phone and has never joined the network. This course is not about one document and not about one group: it follows a single area of work through nine working groups, two plenaries, eighteen work plan entries and the 3492 meeting documents the local record ties to them. Every statement in it hangs on an entry in a source register built from files on this machine, because there is no single specification to cite. It tells you what each group did, which specifications the work creates and changes, where the work has got to, and — at every turn — the document number to go and read, because this school does not carry the text of any of them. It also spends a whole chapter on what the record cannot tell you, which for a subject this young is a large part of the honest answer.

Start at chapter 1 Sit the final test

This course was built from a source register generated 2026-08-04.

Same subject, different depth: quick start · overview ·

The chapters

Part 1 What the work is for

  1. 1 What it means for a network to sense The idea behind integrated sensing and communication, the four ways 3GPP has stated the problem, and how much narrower the first real specification is. 8 min
  2. 2 What people want it for, and why that question came first The use-case study TR 22.837, the verticals it names, why 3GPP asks what a thing is for before asking how to build it, and how much of that ambition survived into the first specification. 7 min
  3. 3 Study first, rules after — and how to read the trail How an area of work moves from a study item to a specification, what each kind of document in the pile is for, and what a version number tells you about how finished something is. 8 min
  4. 4 The map of the groups, and where the weight sat Every group with sensing documents on the record, what each one did, the acronyms to search for, and what the document counts can and cannot tell you about effort. 8 min

Part 2 The radio side

  1. 5 RAN1 and the radio problem The two radio studies — one that built a shared channel model, one that measured what a base station can actually see — and why the model came first. 8 min
  2. 6 RAN3, and where the radio rule-writing went The group that owns the interfaces between radio nodes now leads the sensing work item, what that work item promises, and why it is filed twice. 7 min

Part 3 The system side

  1. 7 SA1, and writing down what the system must do The requirements group's study and specification, the three words TS 22.137 defines, what it did to the general 5G requirements, and the one thread that reaches 6G. 7 min
  2. 8 SA2, and how the system is put together The largest single share of the work — the architecture study, the specification now being written, the new logical function, and the two big 5G documents this work changes. 7 min
  3. 9 Security, applications, management and protocols The four remaining groups — SA3 on privacy, SA6 on the application layer, SA5 on charging and management, CT4 on the bytes — and what each has produced so far. 8 min

Part 4 The documents this work leaves behind

  1. 10 The specifications, one at a time All 27 documents this area touches — the eleven it created and the sixteen it changes — what each one is for in general, and what sensing puts in it. 8 min
  2. 11 What the shape of the paperwork says 2036 pieces of proposed study text against 136 change requests — how to read that ratio, where the change requests actually landed, and which of these counts may not be added together. 7 min

Part 5 Reading the record yourself

  1. 12 Where the work stands, and why there are no dates Piece by piece, what is finished and what is still running — and the plain admission that this record can date none of it. 7 min
  2. 13 How to follow this area yourself The acronyms to search for, how document and meeting numbers are built, the four traps that make this subject hard to search, and the order to read things in. 7 min
  3. 14 What the record cannot tell you The honest chapter — every question about sensing that this data cannot answer, why, and what to read instead. 7 min

Testing yourself

Every question at once

74 questions, chapter by chapter, on one page — for revision after you have read the course.

Open all the questions

The final test

20 questions drawn across the whole course, marked at the end. 70 per cent to pass, and every miss says which chapter to go back to.

Sit the final test

What this course is built on

Chapters
14
Words written for you
19,883
Checked sources
149
Sources this course cites
149

Every source