Sensing — the network as a radar · Quick start
Every question of this course
All 15 questions on one page, in the order the chapters come. Pick an answer and it tells you at once whether you were right and where the answer lives.
1 A network that can see
Q1.1 What can a 5G network already do today, according to the radio proposal?
The proposal says positioning of connected devices is supported. What is missing is a built-in way to detect objects that are not connected. why FS_Sensing_NR was proposed
Q1.2 What does the "integrated" in integrated sensing and communication mean?
The radio study describes ISAC as the simultaneous use of radio frequency signals for both sensing and communication purposes. why FS_Sensing_NR_bis was proposed
Q1.3 What is a "sensing result" in the requirements document?
The definition draws the line between raw data and a result. A result has been processed for whoever asked for it. "Sensing result" as 22.137 defines it
2 What it is supposed to be for
Q2.1 Which document holds the original list of sensing use cases?
TR 22.837 is the study on integrated sensing and communication, and its scope is use cases and potential requirements across nine industries. the scope of 22.837
Q2.2 What is the stage 2 specification limited to?
TS 23.137 says in its own scope that it focuses only on the aerial object detection and tracking use case. the scope of 23.137
Q2.3 In "gNB-based sensing", who does the sensing?
The definition says the gNB — a 5G base station — acts as the sensing entity, though it says nothing about where the result is worked out. "gNB-based Sensing" as 23.700-14 defines it
Q2.4 Where did the wider list of industries end up?
SA6's study looks at enhancing existing application-layer specifications for drone systems, vehicles and spatial maps by using sensing results. the objective of FS_Sensing_APP
3 Who is building it, and what exists on paper
Q3.1 How many separate meetings have had a sensing document on the table?
79 meetings, across the working groups and the two plenaries above them. 3492 is the document count and 14 is the number of acronyms. 79 meetings have had Sensing documents on the table
Q3.2 Which group has filed the most documents on this subject?
SA2, the group that designs how the system is put together, has the largest count. RAN1 has spent the most meetings on it. SA2
Q3.3 TS 23.137 stands at version 0.3.0. What does that mean?
None of the four rule-writing items has produced a published specification yet. TS 23.138 and TS 29.545 are at 0.1.0 for the same reason. TS 23.137
Q3.4 3492 documents carry a sensing work item acronym. Is that the whole record?
440 documents whose title says integrated sensing or ISAC carry no acronym at all, including every plenary approval document. They are not in the 3492. 440 Sensing documents carry no work item acronym
4 Where to look yourself, and what nobody can tell you yet
Q4.1 Why should you not search 3GPP documents for the word "sensing"?
Sidelink partial sensing, listen-before-talk channel sensing and the separate 6G work all use the same word. Filtering by work item acronym is the only reliable way. 2053 documents say sensing but mean other work
Q4.2 Which document should you read first?
It is short and it defines the words every later document leans on. TS 22.137
Q4.3 Which of these can this record answer?
The register holds meeting codes, version numbers, titles and counts. It holds no dates and no reason for any decision. 79 meetings have had Sensing documents on the table
Q4.4 A colleague says "sensing has 14 work items". What is missing?
Two acronyms have more than one entry in the work plan, so both numbers are correct and a bare count is ambiguous. 18 Sensing entries in the work plan