Sprint LTE now Live, Promises 6-8Mps down/2-3Mbps up

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Dari

Lifer
Oct 25, 2002
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So if someone wants to stay with GSM phones for LTE, which carrier is faster? ATT or TMO?
 
Dec 30, 2004
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people are making way too much out of that video. people are pulling down in the 20s right now.

sprint is supposedly building its network in such a way that converting to LTE/R10 is fairly simple, whereas vzw and att will need to rebuild much of their network infrastructure.

how does that work?
I hope that means more than just "backhaul".

I don't see why they didn't just go straight to LTEr10
edit: just read jersiq's post
 
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wirednuts

Diamond Member
Jan 26, 2007
7,121
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ok, so doesnt this completely blow the cover off cable companies who say its 'difficult' to provide 'high speed' internet that tops 30mbs? and that they 'must' enforce data caps to save bandwidth?

now we have the wireless companies beating them. im sorry, that is just a joke. we cant even get close to hardwire speeds off wifi, and that is a much shorter distance.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,425
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So if someone wants to stay with GSM phones for LTE, which carrier is faster? ATT or TMO?

LTE is GSM (kinda sorta), and TMO doesn't have LTE

therefore, the answer to your question is verizon wireless
 
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ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,425
8,388
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uhhhh..... and do you think their infrastructure vendors are any different? It's slim pickings out there if you want to purchase eNodeB/MME/SGW/PGW. No one vendor is even close to correctly implementing R8, let alone a future release.
from what i've read sprint is rolling out with R9 as opposed to cellco and at&t which went with R8, and that the R8 equipment will require significant overhaul to move to R10. maybe that's wrong, but it's what i've read.

Also in 5 mHz you have 300 subcarriers per millisecond. given a normal cyclic prefix, we fit 14 OFDM symbols per carrier.

300 X 14 = 4200

Now assuming 64 QAM, we get 6 bits per symbol:

6 X 4200 = 25200, or 25.2 Mbps
So you have just hit channel saturation on those "20" speed tests.

Now the argument is "cell density" which is hogwash. All other carriers will be doing a 1 for 1 overlay, as eNodeB's a far cheaper than the alternatives. Not only that, no vendor is supporting Inter Carrier Interference Cancellation, so they will still have to deal with the fact that every cell (sector) interferes with it's neighbors. IC-IC chops up the already sparse spectrum anyways.
iow, people are bouncing off the rev limiters on sprint right now as there's about 10 users in the entire metro and speeds will decrease when there's more users. and 5x5 is inherently less overall bandwidth at the cell site than 10x10, which can't be as readily corrected for by having more densely packed towers as some might have you think (which may not be more densely packed at all). of course, sprint having roughly half of cellco's or att's subscriber base also plays into it.

edit: then there's guys above getting 30+
 
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Dari

Lifer
Oct 25, 2002
17,134
38
91
LTE is GSM (kinda sorta), and TMO doesn't have LTE

therefore, the answer to your question is verizon wireless

Are you sure? So I can take an LTE phone I purchased in Europe, Canada, or Asia and it'll work on Verizon's LTE network not unlike ATT?
 

Dari

Lifer
Oct 25, 2002
17,134
38
91
They're very strict when it comes to devices. It won't work.

So it won't work because of their strict policies, not because the network is technically incompatible with GSM LTE phones?

So other area won't work unless you get an international phone with their plan which is expensive as hell

I doubt they have 4G globally off Verizon.

This doesn't make sense. I'm not understanding what you're trying to say.
 

dagamer34

Platinum Member
Aug 15, 2005
2,591
0
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Are you sure? So I can take an LTE phone I purchased in Europe, Canada, or Asia and it'll work on Verizon's LTE network not unlike ATT?

LTE phones don't just happen to randomly work on other networks, they need to have compatible frequencies. North American LTE frequencies are unique and will not just happen to work with an LTE phone bought in Europe, Asia, the Middle East, or Japan.
 
Dec 30, 2004
12,554
2
76
ok, so doesnt this completely blow the cover off cable companies who say its 'difficult' to provide 'high speed' internet that tops 30mbs? and that they 'must' enforce data caps to save bandwidth?

now we have the wireless companies beating them. im sorry, that is just a joke. we cant even get close to hardwire speeds off wifi, and that is a much shorter distance.

comcast got rid of data cap, it's 300GB now + $10/50GB thereafter.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,425
8,388
126
Are you sure? So I can take an LTE phone I purchased in Europe, Canada, or Asia and it'll work on Verizon's LTE network not unlike ATT?

europe has very little LTE to speak of and most asian LTE is the TD version, which sprint will be rolling out later. att's and vzw's LTE is FD, so a TD only device won't work with either. and the bands probably aren't compatible. iow, even if you have an att phone with LTE/UMTS/EDGE radios in it, it likely will use UMTS elsewhere at best even if it's fully unlocked and there's an LTE network running in the area.

we're at the very start of the LTE era for mobile and it may be a while before true world phones arrive.
 
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