For sure, some use 900MHz 802.15.4 equipment for industrial, agriculture, and environmental monitoring systems.
People need the lower frequency to punch though the water vapor, and can't get away with <14cm without cutting range.
Using it for 5G bandwidths is stupidly inefficient, as it will cap out at a few hundred users a cell. Maybe they are getting the bands for cheap... lol =)
It's honestly as stupid as that HFT shop that was trying to grab a bunch of shortwave bandwidth for god knows what sort of shenanigans instead of just building microwave towers or doing something else mildly more intelligent.
People need the lower frequency to punch though the water vapor, and can't get away with <14cm without cutting range.
Using it for 5G bandwidths is stupidly inefficient, as it will cap out at a few hundred users a cell. Maybe they are getting the bands for cheap... lol =)