The following technologies have at one time or another been called 4G by someone, near as I can tell:
*TA (14 mbps) HSPA supporting Category 10 devices (16QAM, 5MHz, SISO) : T-Mobile referred to this as 4G. I don't think they still do but I'm not sure. AT&T calls this "4G" when on an iPhone 4S.
*TA (21 mbps) HSPA supporting Category 14 devices (64QAM, 5MHz. SISO) : T-Mobile and AT&T currently refer to this as "4G"
*T (42 mbps) HSPA supporting Category 24 devices (64QAM, 10 MHz, SISO) : T-Mobile
(10 or 20 mbps due to backhaul) WiMax, 10 MHz TDD : Sprint
(7 mbps) LTE (1.4 MHz FDD, SISO) : MetroPCS
(16 mbps) LTE (3 MHz FDD, SISO) : MetroPCS
(27 mbps) LTE (5 MHz FDD, SISO) : MetroPCS
(54 mbps) LTE (5 MHz FDD, MIMO) : AT&T calles this "4GLTE"
(108 mbps) LTE (10 MHz FDD, MIMO): AT&T, Verizon both call this "4GLTE"
*TA = Nexus 4 on T-Mobile and on AT&T support this
*T = Nexus 4 on T-Mobile support this. AT&T not supported because AT&T hasn't deployed (to the best of my knowledge) dual-carrier HSPA.
I was reading an article on the Nexus 4 on Phone Dog and the writer said that if you buy the Nexus 4 on Google you don't get 4g, but rather 3g on AT&T' s network. The writer didn't elaborate, but that would be crazy if it's true. I am planning on ordering a Nexus 4 when they restock, but not if they don't even have 4g. I thought all I had to do was switch my SIM card from my GS3 to the nexus and I'm done. Hoping the writer on Phone Dog was incorrect. Does anybody know for sure?
Sent from my SAMSUNG-SGH-I747 using Android Central Forums