LTE band 31 (450 MHz)?
LTE band 31 (450 MHz) isn't an option in the UK, I presume?
OK, so VoLTE on LTE450 is probably not an option within the timeframe outlined in any case. But it sure sounds like a tempting long-term solution:
- Allows for a theoretical cell radius of 48.9 km. Or, given a land-area of 242kkm2 (UK), 33 towers in the highly overoptimistic, non-overlapping, non-realistic scenario.
- mass-market devices/radios (eventually)
- IP-enabled by default. Build *any* functionality as a networked application. PTT could possibly make use of the camera-button or whatever physical button is available on a rugged mass-market device.
- add priority by way of MTPAS (yeah, yeah, LTE Release 13)
Dag B
Biting the hand that feeds IT
