I have tested AT&T, Sprint, Verizon, &T-Mobile's Lte networks and have compiled the following. Keep in mind these tests are not entirely scientific and only provide a basic overview of actual network performance at best. Tests were performed for 5 minute Intervals at morning, lunch, 5 o clock rush, &sundown. I covered 7 miles in my testing sessions and avoided testing outsides the intended coverage area of the site. I believe each carrier had at least 3 Lte sites a piece in my test strip.
#1 AT&T's 10x10 is far less loaded in my area than that of VZW. An average signal strength of -79 dBm, 41 Mbps downlink 17 Mbps uplink, average latency 73 ms. Indoor performance was phenomenal, signal strength remains consistent throughout. For now AT&T takes the cake.
#2 Sprint operates a 5x5 mhz network and is not complete of course, however I did my testing in an area with several consecutive live LTe sites. An average signal strength of -84 dBm, 14mbps downlink 7mbps uplink, average latency 81ms. Indoor performance varies greatly depending on the exterior material of the building. Only once however did I revert to 3G.
#3 T-Mobile is far from complete yet I am able to use any LTe they have available. I had an average signal of -93 dBm, 23mbps down 9mbps up with an impressive 60 ms average latency. Most impressive with outdoor usage ping times were as low as 37ms however indoors T-Mobile has the most squeamish LTe experience out of any of the national providers.
#4 Verizon wireless, the touted LTe king lacks in every department except for coverage;of which is plentiful compared to any other current network. Vzw average signal was -87 dBm, 11mbps down 3 Mbps up with an average latency of 98 ms. Indoor outdoor coverage is virtually ubiquitous from my experiences.
I look forward to duplicating this test in 6 months.
Results will be different in every market.
Also since this is posted the general section I'll clarify on my ranking system. The scale is based simply on performance, I am in no way suggesting AT&T is the #1 choice for your personal wireless provider.
Testing was performed in Bixby OK.
-Will