The final test

E1 What is an Ambient IoT device?

• A base station that runs on solar power
• A device powered by energy harvesting, with limited energy storage capability
• A phone with an unusually large battery

E2 How many groups have filed Ambient IoT documents, and how many documents are there?

• 4 groups and 2357 documents
• 16 groups and 10771 documents
• 37 groups and 900 documents

E3 Which group filed the most, and which one has stopped?

• CT1 filed the most; CT6 has stopped
• SA2 filed the most; RAN5 has stopped
• RAN1 filed the most with 2421; SA1 stopped on 2025-05-09

E4 Which document should somebody open first to understand the system side?

• TS 23.369, with 524 change requests the busiest in the area
• TS 22.369
• TR 38.848

E5 What is the safe thing to say about Rel-20 phase 2?

• It is running, with eleven items between 0 and 70 per cent against target dates
• It was dropped after the studies
• It is finished and published

E6 What powers an Ambient IoT device?

• A small battery replaced once every ten years
• Power sent down a cable from the nearest mast
• Energy harvesting, with no battery at all or a capacitor holding a little charge

E7 Which group filed the most Ambient IoT documents?

• RAN1, the radio group, with 2421
• CT4, which owns nine of the affected specifications
• SA1, the group that writes what a system must do

E8 How many specifications does this work touch?

• 37
• 53
• 15

E9 What is the right thing to type into a 3GPP document search?

• The words "battery free tag"
• The name of the company that proposed it
• The short name of the piece of work, such as AmbientIoT-ARC

E10 Which sources of energy did the first study name?

• Only radio waves sent by the network
• Radio waves, light, motion, heat, or any other power source that could be seen suitable
• Solar panels alone