Every question of this course

Q1.1 What does the document say a transparent payload does to the signal?

• Demodulates and decodes it, then encodes it again
• Holds it until a ground station comes into view
• Changes its frequency, filters it and amplifies it

A transparent payload only moves the signal along. The demodulating and decoding belongs to the other kind, the regenerative payload. "Transparent payload" as 38.863 defines it

Q1.2 What is the service link?

• The radio link between the satellite and the phone
• The hop between the satellite and the ground station
• The link between two satellites

The service link is satellite to phone. The hop between the satellite and the ground station is the feeder link. "Service link" as 38.863 defines it

Q1.3 What does the definition of a satellite access node cover?

• Only the equipment flying in orbit
• The payload in orbit together with ground-station and base-station functions
• Only the ground station at the far end of the feeder link

The definition says it encompasses a transparent payload on board the platform, with satellite-gateway and base-station functions. It spans both ends. "Satellite Access Node" as 38.108 defines it

Q1.4 Why is a satellite in geostationary orbit described as appearing motionless?

• Because it is too far away for its movement to be seen
• Because it is parked above the North Pole
• Because it goes round in the time the Earth takes to turn once

The definition says the orbital period equals the Earth's rotational period, so to somebody on the ground the satellite sits at a fixed point in the sky. "Geostationary Earth Orbit" as 38.108 defines it

Q2.1 Which industries does the Release 17 internet-of-things work item name first when it says why it was proposed?

• Broadcasting and news
• Farming and forestry
• Transport and logistics

The justification says connection matters most where there is none, and the first industries it names are transport — maritime, road, rail, air — and logistics. why LTE_NBIOT_eMTC_NTN was proposed

Q2.2 How long is that work item's stated objective?

• One sentence, plus a note about when the work starts
• A table of twenty-five documents to change
• The record does not hold it

It says the objective is to specify support of NB-IoT and eMTC over NTN, then adds that work on both starts at the August 2021 meetings. the objective of LTE_NBIOT_eMTC_NTN

Q2.3 Where does the line of work this course follows begin?

• With the Release 17 rule-writing
• With one Release 15 study on the 5G radio for non-terrestrial networks
• With TS 38.108, the satellite base station's radio rules

The study is called "Study on NR to support non-terrestrial networks", it sits in Release 15, and the document it produced is TR 38.811. FS_NR_nonterr_nw

Q2.4 What does the Release 19 internet-of-things justification say about deployment?

• That nothing has been built anywhere
• That deployment waits for Release 20
• That commercial deployment is going on

It says the work was specified in Release 17, optimised in Release 18, and that commercial deployment is going on. That is the proposers' claim, not a status field. why IoT_NTN_Ph3-Core was proposed

Q3.1 Which group has filed the most of these documents?

• SA2, with 3588
• RAN4, with 7490
• RAN1, with 6492

RAN4 carries 7490 in this record, ahead of RAN2 with 6714 and RAN1 with 6492. RAN4 owns the radio requirements and every band item. RAN4

Q3.2 How many separate meetings have had one of these documents on the table?

• 35306
• 183
• 550

550 meetings. 183 is the number of work plan rows and 35306 the number of documents. 550 meetings have had Satellites documents on the table

Q3.3 Why can a company's filing count be too high?

• Names are counted as each document spelled them, so one company under two spellings counts twice
• Every group a document was sent to counts it again
• The count includes documents about other subjects

The count groups documents by the name written on them and resolves nothing to a parent company, which the method line says outright. Huawei, HiSilicon filed 2287 Satellites documents

Q3.4 What do the three plenaries do in this subject?

• They write the radio requirements
• They are where work is opened rather than where it is done
• They run the conformance tests

The RAN plenary carries 1273 documents against thousands in the working groups below it, and the papers that open a study or a work item are plenary papers. RAN

Q4.1 Which document sets the radio a satellite base station has to manage?

• TS 38.101-5
• TR 38.811
• TS 38.108

TS 38.108 is the satellite access node's radio. TS 38.101-5 is the phone's side of the same link, and TR 38.811 is a study rather than a rule. TS 38.108

Q4.2 TR 38.811 and TR 38.821 are the two studies the radio line rests on. What can this school do with them?

• Name them and count what was written about them, and nothing more
• Print their clauses beside a chapter
• Show their figures

Neither report's text was parsed onto this machine, so no chapter here may quote one, cite a clause of one or embed a figure from one. TR 38.811

Q4.3 35306 documents carry one of this subject's short names. Is that the whole record?

• Yes, it is the total
• No — 6568 more name satellites or NTN in their title and carry no short name at all
• No, because revised documents were left out

Everything here is selected by short name, so a document that carries none is invisible to the count. The figures are floors, never totals. 6568 documents name satellites or NTN in their title and carry no work item

Q4.4 What does this record hold about why a group decided something?

• A short summary of the discussion
• The count of who was for and who was against
• Nothing beyond the outcome word beside a document number

Approved, agreed, revised, noted — the stores keep the outcome word and nothing about the argument, and no store anywhere records a tally. RP-171450