We've been hearing from many of you who bought a shiny new Inspire 4G that there appears to be an issue with the device upload speeds. While AT&T is busy working out the kinks in their HSPA+ network, getting backhaul in place and pouring the magic 4G dust into the wires, most of us with an Inspire 4G are still using the 3G HSPA network. HSPA is broken down into two parts -- HSDPA (download) and HSUPA (upload).
The Inspire 4G is not HSUPA capable, according to AT&T. No conspiracy. No rumor. Just the answer, straight from the source.
This explains why most of us are seeing fast 3G download speeds, but no-so-much on the upload side. I had a bit of a play with this myself last night, and see the same thing -- download speeds around 2 Mbps, and upload speeds around 200 kbps. You can see above what our (and TiPb's) own Jeremy Sikora is seeing for speeds in Chicago. He also notes that upload speeds on his iPhone 4 (which is HSUPA capable) are about twice what he sees with his Inspire.
While it's not the news most of us want to hear, it does clear up the confusion. Thanks to the folks at AT&T who took time to answer our questions.
AT&T confirms the Inspire 4G does not feature HSUPA posted originally by Android Central
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