4 ms·
We're going to see some amount of beamsteering (and/or MIMO) on the handset side too. But only 3-10 elements--nowhere near the 1000s on an AESA.
by mNovak 8y ago
We're going to see some amount of beamsteering (and/or MIMO) on the handset side too. But only 3-10 elements--nowhere near the 1000s on an AESA.
- Gibbon1 8y agoLast time I looked you need a huge amount of elements to get good angular resolution. For Wifi two things. 1. All you care about is getting the ratio of multipath energy high enough that you can resolve independent signals. 2. Remember RF power is measured in db and your radio's power consumption is in linear watts. 6db better signal margin means you use half the amount of energy. Useful for devices that run off batteries, have issues with heat dissipation.[1] 3. Less energy transmitted means your effective cell size gets smaller. [1] Crusty old EE pointed out to me once the difference between a 85% efficient power supply and a 90% one is 65% less heat to get rid of. Same thing is true of RF power amps.