Personally, I have a 3GS and will get the 4S regardless of data speed because processor speed will be so much faster (dual-core A5).
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AT&T (3G/S) customers Are you waiting to see if 4S uses HSPA+ or are you preordering?
- Thread starter GodWhomIsMike
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Personally, I have a 3GS and will get the 4S regardless of data speed because processor speed will be so much faster (dual-core A5).
We are getting into details that I don't completely understand, but depends on how you look at it, it can be 14.4 or 14.0. It has something to do with the codes and code rate. It's still HSDPA.
Actually the keynote focused speeds pertaining to HSPDA (AT&T) and left out CDMA.
I would say in this regard it was HSPDA specific which includes carriers that are HSPDA.
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Cook said 14.4
Read my post above. It was already covered.
Also, the Wikipedia article posted above has some good information. Check this line out:
All I want to know about the speed is this.
If I (AT&T on iP4) get <1mb down and <.50mb up now with full bars on 3g,
Will this phone be faster?
If I (AT&T on iP4) get <1mb down and <.50mb up now with full bars on 3g,
Will this phone be faster?
It maybe faster. But those speeds seem to be caused by a congested tower or slow back haul.
No one has said the 4S is 4G. What the keynote said is 1) 14.4 2) will be as fast or not faster than AT&T HSPA+ devices because of software enhancements.
This is what Apple presented not me. If the 4S is going to as fast or faster cause of software enahancements....
Speed does not determine the 3GPP Release classification... trust me.
It isn't real world speed, its theatrical speed that the different revisions can achieve. Your credentials for trusting you?
OK let's start. How many antennas does the iP4S use to achieve the quoted theoretical speeds?
Edit. Not trying to have a go. Just need the info to do some calculations that's all.
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Where in Florida are you located? When we were in Tampa, Clearwater, Orlando, Miami, FT Lauderdale etc my iPhone 4 was stellar.
It uses one or two, depending on the availability of the network and signal. It could be using MIMO with two revision 5 7.2 streams to get at 14.4. If that is the case, Apple made a rather poor choice that can be fixed with a software update to enable 14.4 on one stream.
OR
It only uses one antenna at a time and dynamically switches between the two, depending on the availability of the network and signal. In that case it uses one data stream at 14.4. In this case, Apple is taking full advantage of the MDM6600 chip's abilities.
Bottom line: We won't know until its been ripped apart and inspected by multiple creditable sources.
That what I figured. 100+ mark the spots this year. I think AT&T thinks my dog is using the app and ignoring my spot.
If it uses 2x streams at 7.2Mbs, this will indeed be 3GPP rel. 5 (HSPA). The theoretical 14.4Mbps data rate cannot be achieved simply by 'squishing' both these streams into a single antenna; it doesn't work like that.
As you say, a teardown can help clarify things but for the time being, its much safer to call the iP4S an HSPA device than a HSPA+. For an upgrade to HSPA+ may not be as straight forward with just a firmware update. Notice how Apple did/does not suggest its HSPA+... there's probably a reason for that but just be careful what you read on the www as there's alot of claims without substance (and alot of regurgitation too)!
Anyway, who gives a monkey's when there's more important matters tomorrow. Pre-order here we come!!!
If it uses 2x streams at 7.2Mbs, this will indeed be 3GPP rel. 5 (HSPA). The theoretical 14.4Mbps data rate cannot be achieved simply by 'squishing' both these streams into a single antenna; it doesn't work like that.
As you say, a teardown can help clarify things but for the time being, its much safer to call the iP4S an HSPA device than a HSPA+. For an upgrade to HSPA+ may not be as straight forward with just a firmware update. Notice how Apple did/does not suggest its HSPA+... there's probably a reason for that and just be careful what you read on the www as there's alot of claims without substance (and alot of regurgitation too)!
Anyway, who gives a monkey's when there's more important matters tomorrow. Pre-order here we come!!!
If there is a HSPA device what does it take for the device to become HSPA+?
Does the device need special chip or can HSPA+ be enabled outside of the device?
The other poster said they had a 3G, not a 4. I have a 3G as well and my speeds are comparable to 1mb downloads. Cannot wait for the 4S.
The issue with your theory is Release 5 doesn't support MIMO.
That didn't happen until Release 7.
The MDM6600 supports full Release 7 HSDPA at 14.4Mbps (HSPA+), so I fail to see why Apple would chose not to use it.
The other theory is maybe this is what Samsung is suing Apple over.
Samsung has some radio patents that are not part of the 3GPP standard that enhance throughput.
Who knows at this point.
I can't wait to see the iFixIt report and take a peek at the radio firmware.
The only way to know for sure is to look at the firmware.
As you stated... nobody will now until the device is properly inspected.