"Multi-Gigabit Fast Access to Subscriber Terminals" is a new proposed ITU standard. 2020 is the target date for deployments. Jochen Maes of Alcatel/Nokia has been bringing his prototype 5 & 8 gigabit systems around the world since 2014, impressing telcos from Germany to Australia. He uses more frequencies, full duplex signalling, and other optimizations to get extraordinary performance.
Adtran's simulations are that 4 gigabits can go ~75 meters using 424 MHz. 848 MHz can deliver 8 gigabits ~30 meters. (Phone wire, ideal conditions. Coax would have longer reach.)
Either would be great for the 55 families in my six story New York building. The simulations from Adtran and others in the standards groups have consistently predicted what the actual performance would be.
Huawei's Eric Wang is the editor.