Perhaps more importantly, MetroPCS warned in its SEC filing that its forthcoming LTE network might not wow users with lightening-fast downloads.
"In some cases, because of the limited amount of spectrum available to us in certain metropolitan areas, we will be required to deploy LTE on 1.4 or 3 MHz channels," the carrier said.
Michael Thelander, founder and CEO of Signals Research Group, explained that 1.4 MHz is the smallest channel that can be reasonably used to deploy LTE. In comparison, Verizon Wireless plans to devote up to 10 MHz to LTE. Because MetroPCS is squeezing LTE into such a narrow spectrum channel, the carrier likely won't be able to provide data speeds beyond what are available through today's 3G networks.
"With a skinny LTE channel, it's not really going to be better than HSPA," Thelander predicted. (Today's 3G networks provide around 1 Mbps downloads, while Verizon said it will provide around 8 Mbps via LTE.)
However, Thelander noted that MetroPCS' spectrum holdings range from 700 MHz to 1700 MHz to 1900 MHz, which means the carrier may be able to mix and match bands in order to provide faster speeds (though it also will also be forced to mix and match equipment, which could be an expensive proposition).