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drober30

macrumors 6502a
Original poster
Jul 5, 2007
848
106
I thought during the keynote that it was mentioned 14Mbps download speeds and it was stated that Apples competition calls this 4G?

Will the 4s have twice the download speeds?
 
Yes 14mb but what's the point of having fast network when companies slow you down and no unlimited data... I wonder if a iPhone with 4G have unlimited data
 
After some looking on AT&T web site I figured out that it's not 4g speeds but is faster / double that of my current iPhone4.

Sounds good to me, I have unlimited data but Im sure I don't use that much anyway. It will be nice to have web pages load twice as fast!
 
After some looking on AT&T web site I figured out that it's not 4g speeds but is faster / double that of my current iPhone4.

Sounds good to me, I have unlimited data but Im sure I don't use that much anyway. It will be nice to have web pages load twice as fast!
It's 4G.
Anything using HSPA+ is 4G according to AT&T.
The iPhone 4S is an HSPA+ device.
I have an Atrix that is 14.4Mbps HSPA+ (Same as the iPhone 4S) and I have a 4G data plan attached to it.
And yes, it's unlimited. I was grandfathered in from my old iPhone data plan.
 
It's 4G.
Anything using HSPA+ is 4G according to AT&T.
The iPhone 4S is an HSPA+ device.
I have an Atrix that is 14.4Mbps HSPA+ and I have a 4G data plan attached to it.
And yes, it's unlimited. I was grandfathered in from my old iPhone data plan.

No, it's not. It's HSDPA. There's a difference. It's not 4G
 
No, it's not. It's HSDPA. There's a difference. It's not 4G
Good lord...
HSDPA is part of the HSPA standard.
It's the downlink side. HSUPA is the uplink side.

HSDPA rates above 14Mbps are part of the HSPA+ protocol.
Anything using HSPA+ (which the 4S does) is considered a 4G device in AT&T's eyes.
 
Is HSDPA only for AT&T?

I'm pretty dim at this sort of thing. I was under the impression that this wouldn't work on Verizon? So the 4s on the Verizon performs just as the 4? Or will it too be at speeds of 14.4?
 
Is HSDPA only for AT&T?

I'm pretty dim at this sort of thing. I was under the impression that this wouldn't work on Verizon? So the 4s on the Verizon performs just as the 4? Or will it too be at speeds of 14.4?
Yes, it only works on AT&T and other GSM networks.
Provided they use the same frequencies of course.
 
Correct me if I'm wrong, but the iPhone 4S's 14.4 mbps speed is not the same as HSPA+'s speed of 21 mbps, which tells me the iPhone 4S's speed is not 4G speeds.

:confused:
 
Not another one...

HSPA+ STARTS at 14Mbps, not 21Mbps.

Uhh... okaaaayy. But iPhone 4S speed ENDS at 14Mbps, but AT&T's 4G HSPA+ with backhaul STARTS at 21. And that's where a lot of new phones now START. And that's what AT&T is labeling as 4G now...
 
Uhh... okaaaayy. But iPhone 4S speed ENDS at 14Mbps, but AT&T's 4G HSPA+ with backhaul STARTS at 21. And that's where a lot of new phones now START. And that's what AT&T is labeling as 4G now...
LOL... Ok... if you say so. :rolleyes:

The iPhone 4S goes up to 14.4Mbps. (HSPA ends at 14Mbps)
This makes it an HSPA+ device. Barely, but it is.

AT&T's backhaul starts at 0, and tops out at 21Mbps. ;)
Backhaul has nothing to do with the type radio used in a phone or tower.
It's simply a data pipe.
Even people on EDGE and 3G use the same backhaul as 4G users.
AT&T does not run a separate data feed just for 4G users.
Each tower uses the same data line regardless of the incoming signal.
 
LOL... Ok... if you say so. :rolleyes:

The iPhone 4S goes up to 14.4Mbps. (HSPA ends at 14Mbps)
This makes it an HSPA+ device. Barely, but it is.

AT&T's backhaul starts at 0, and tops out at 21Mbps. ;)
Backhaul has nothing to do with the type radio used in a phone or tower.
It's simply a data pipe.
Even folds stuck on EDGE and 3G use the same back backhaul.

You know...I'm not sure in all honesty why I thought it *started* at 21, that's obviously not true. I think I was typing faster than I was thinking, sorry for that!

Anyway, yes "backhaul" in general starts at 0, but I wasn't talking about that. I was talking about AT&T's 4G HSPA+ with backhaul. From Wikipedia:

High-Speed Downlink Packet Access (HSDPA) is an enhanced 3G (third generation) mobile telephony communications protocol in the High-Speed Packet Access (HSPA) family, also dubbed 3.5G, 3G+ or turbo 3G, which allows networks based on Universal Mobile Telecommunications System (UMTS) to have higher data transfer speeds and capacity. Current HSDPA deployments support down-link speeds of 1.8, 3.6, 7.2 and 14.0 Megabit/s. Further speed increases are available with HSPA+, which provides speeds of up to 42 Mbit/s downlink and 84 Mbit/s with Release 9 of the 3GPP standards.

So while it's true HSDPA tops out at 14.0Mbps, and the iPhone 4S reaches 14.4Mbps, it does so using HSDPA + MIMO (Multi-In, Multi-Out--two seperate 3G 7.2Mbps connections). AT&T networks are now running up to 21Mbps, which they've dubbed "4G", using HSPA+ with enhanced backhaul. These are different technologies (well, different protocol anyway) which tells me the two are not the same, iPhone 4S being a third slower, and therefore not 4G.
 
So while it's true HSDPA tops out at 14.0Mbps, and the iPhone 4S reaches 14.4Mbps, it does so using HSDPA + MIMO (Multi-In, Multi-Out--two seperate 3G 7.2Mbps connections). AT&T networks are now running up to 21Mbps, which they've dubbed "4G", using HSPA+ with enhanced backhaul. These are different technologies (well, different protocol anyway) which tells me the two are not the same, iPhone 4S being a third slower, and therefore not 4G.
You're reading too much into it.
HSDPA is part of the HSPA protocol, they are not different technologies.
It's the downlink side of HSPA and HSUPA is the uplink side.
HSPA+ is Evolved HSPA.

AT&T has called any HSPA+ device a 4G device.
HSPA+ is anything above 14Mbps, not 21Mbps.;)
 
I thought during the keynote that it was mentioned 14Mbps download speeds and it was stated that Apples competition calls this 4G?

Will the 4s have twice the download speeds?

14.4Mb/s (or pretty much thereabouts) is the lowest end of 4G speeds but I reckon Apple threw that in just for a bit of marketing spin. Personally I think its pretty cheeky to call it 4G but there you go. :)

To those saying that the iP4S is a HSPA+ device, I really don't know where you got this information from because it certainly isn't from Apple's iP4S tech spec page so please enlighten me. Just because it can reach a certain speed (say 14.4Mb/s) does not automatically classify it as HSPA+.
 
14.4Mb/s (or pretty much thereabouts) is the lowest end of 4G speeds but I reckon Apple threw that in just for a bit of marketing spin. Personally I think its pretty cheeky to call it 4G but there you go. :)

To those saying that the iP4S is a HSPA+ device, I really don't know where you got this information from because it certainly isn't from Apple's iP4S tech spec page so please enlighten me. Just because it can reach a certain speed (say 14.4Mb/s) does not automatically classify it as HSPA+.
Tech specs page says it all.
HSDPA 14.4Mbps is HSPA+
The issue is many here don't appear to understand what HSPA+ actually is.
HSPA is simply the common name for combined HSDPA and HSUPA.
You cannot have one without the other, so HSPA covers both in one term.
Once you break the 14Mbps speed, you are using HSPA+ (Evolved HSPA).
 
where are you guys getting this crap? do not see anywhere that says its 4G. 14mpbs is something different.

no whee does it says 4G
 
So will the 4S have 14 Mb/s on Verizon??

No 14.4 Mbps is only on AT&T/GSM networks. Verizon and Sprint will use EVDO. Much slower.

For those that want to know in the real world in a good AT&T area (if you can find one) 14.4 HSPA+ will get 8 - 10 Mbps.


where are you guys getting this crap? do not see anywhere that says its 4G. 14mpbs is something different.

no whee does it says 4G

AT&T calls it 4G.
 
No 14.4 Mbps is only on AT&T/GSM networks. Verizon and Sprint will use EVDO. Much slower.

For those that want to know in the real world in a good AT&T area (if you can find one) 14.4 HSPA+ will get 8 - 10 Mbps.




AT&T calls it 4G.

Whats a realistic Verizon EVDO speed? 5 Mbps? Is that the same as 3g?
I am tryna choose between a VZ 4G phone or the new iphone...
 
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