1. Marketing vs. reality – 5G indicators often don’t reflect true SA performance
- “It depends on the provider… they can choose what the logo means… it can show it if the cell has 5G even if you’re not connected to that at the moment.” – wolvoleo
- “Just because your phone shows 5G doesn’t mean it’s connected to a 5G station. It also can only be a signaled flag from a 4G station.” – BlackRabbit1
- “5G SA isn’t still available for the broad masses yet… and they are talking of 7G?” – BlackRabbit1
2. Skepticism about the need for 6G/7G – is it driven by marketing or genuine technical demand?
- “I say no for the next 15 years. Because there are 1,425,235 other things that are way much more important than this.” – respectattentio
- “The interesting part of 6G doesn’t seem to be faster downloads so much as sensing… ISAC is about making the network capable of sensing the physical environment.” – quietsignal
- “There will always be new Gs… marketing teams require it.” – Havoc
3. Physical and engineering limits of higher‑frequency bands (mmWave, building penetration, bandwidth)
- “For building penetration you need low frequencies but those low frequencies have less bandwidth… bandwidth needs rapidly go up, making those low bands fuller.” – wolvoleo
- “5G UWB does not work when you are behind a wall… it does not work behind a glass because regular glass is full of iron.” – general1465
- “mmWave was never for large areas. It’s for ultra high density like in stadiums… its extremely limited range and penetration is a benefit there.” – wolvoleo