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sir pball

(5,341 posts)
10. We do have locked phones (I know, I know), but the ATT/TMo is a tech thing
Sat Aug 10, 2013, 09:12 AM
Aug 2013

"4G" is a non-defined marketing term that just means "really fast downloads". ATT and TMobile use HSDPA+ (basically several 3G channels tied together to achieve "4G" speeds) while Verizon and Sprint use LTE (an all-new technology). Europe is mostly HSDPA for now; neither technology is currently superior but HSDPA is the ultimate evolution while LTE is an infant, so the next-gen networks are all planned to be LTE-A.

I suspect the ban has to do with the radio hardware - HSDPA chips are designed by Samsung so presumably they hold the patents. LTE is Qualcomm.

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