What hardware supports it?
All current iphones cannot use Tmobile's 3G frequency and only fall back to edge for data.
It is a major incompatibility issue that can only be address with a hardware modification/addition.
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iPhone 4 Coming to T-Mobile This Week?
- Thread starter snoopy07
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What hardware supports it?
All current iphones cannot use Tmobile's 3G frequency and only fall back to edge for data.
It is a major incompatibility issue that can only be address with a hardware modification/addition.
Read for yourself what the i4 supports:
http://www.apple.com/iphone/specs.html
Cellular and wireless
UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)
802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
Bluetooth 2.1 + EDR wireless technology
So what you are saying is that they would obviously have to make a specific changed version that will work with Tmobile USA and the rest of the world also. Cause obviously the currect models dont support their 3G.
That we will have to wait and see but I hope you're right cause I wouldnt mind switching to Tmobile for cheaper plans and they also have fast 3G in my area
Tmobile uses 1700 and 2100MHz for it's 3G service. The chip that's in the iPhone4 supports the latter (2100MHz).
It just requires software upgrades to take advantage of using that frequency spectrum.
Get your facts straight.
Tmobile decided to go with 1700MhZ
All current iphones work with UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
Its not just a software update, it will have to be done during manufacturing process.
It will not work the way it is the same way the 3G and 3GS model only can use Edge for data and not 3G. Get a little more educated on the topic.
Are you guys really buying this, I mean come on nobody is reporting this not engadget, gizmodo, noone. So how did this guy get this info?
Read for yourself what the i4 supports:
http://www.apple.com/iphone/specs.html
Cellular and wireless
UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)
802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
Bluetooth 2.1 + EDR wireless technology
So what you are saying is that they would obviously have to make a specific changed version that will work with Tmobile USA and the rest of the world also. Cause obviously the currect models dont support their 3G.
That we will have to wait and see but I hope you're right cause I wouldnt mind switching to Tmobile for cheaper plans and they also have fast 3G in my area
T-mobile use 1700 and 2100 (which is supported by the radio already), second due to contract with AT&T and certifications (PTCRB - AT&T cert) They will not display anything else but whatever was already certify. That doesn't mean that the current hardware doesn't support additional frequencies.
Once is certify by other carriers (I am not familier with what certs t-mobile require since i haven't done anything in that network yet), they will be able to display it as "support it" again..I am NO saying that is the case here...jsut saying it is possible.
My facts are straight.
Straight from T-Mobiles website:
Can I use T-Mobile 3G devices on another carrier’s 3G networks?
You will not be able to roam with your T-Mobile 3G device on another carrier's 3G network. T-Mobile devices use the 1700Mhz/2100Mhz frequency band (for 3G) and it is specific to T-Mobile. You can however roam on another carrier's 1900Mhz frequency band using GSM. Likewise, another carrier’s 3G devices will not be able to roam on our 3G network.
http://support.t-mobile.com/doc/tm23715.xml;jsessionid=T-2WKWjovmc_8srzxs#8
Currently, T-Mobile uses 1700MHz for Upload, and the 2100MHz for download in their implementation of 3G. AT&T uses a single frequency to accomplish this. Tmobile more then likely would have to add support to upload and download on a single frequency (a software update on their side) and then the iPhone4 would be able to support the 2100MHz after a software update.
Both support 1900MHz for for GSM.
Sorry but you need get your facts right, don't believe me or anyone else on this thread....take it from T-mobiles website..or call them if you want...
source: t-mobile US - http://support.t-mobile.com/doc/tm23715.xml;jsessionid=T-2WKWjovmc_8srzxs
edit: sorry for double post... KidStallyn seen to be beating me for a couple of minutes!...
, but you'll get the point.
Exactly.
The way it is now it cannot be used obviously for either iphone 3G or 3GS models for that reason.
It would have to be added support either by the carrier or also by the manufacturer.
The way it stands now you cannot take an unlocked iphone 3G and use Tmobiles 3G service, I figured you would at least know that.
But Tmobile changing their whole infastructure to 2100 for both down and upload its not as simple as you think.
You were saying it wasn't physically possible without a hardware upgrade to the iPhone4, which is not correct.
The current hardware of both the iPhone4 and Tmobile network supports each other. It's just going to require a software update to both the iPhone and Tmobiles side to make it happen, which in the world of signal processing, it fairly elementary.
LOL...this thread is about "iPhone 4 Coming to T-Mobile" and all we are trying to say is that is "possible" that the current HW on the iP4 supports it. no one was talking about 3G or GS
Completely ignoring any technical things that would have to be changed if iPhone went to T-Mobile, do you really think that Apple is going to release things to a brand new carrier in the US when they can't even fulfill their own orders in a timely manner AND with the international launch this weekend? Just logical thinking, although I'm sure that doesn't matter.
3G and 3GS models use the same 3G chip bands as the iphone 4.
Believe what you want.....
It would be alot easier than building a CDMA iphone thats for sure.
Will it happen any time sure?
I doubt it though.
of course, if Apple sell one 1 more iphone in a different carrier,,,that's 1 more additional revenue stream that translate in the long term to some percentile in profit which translate into some +% in the stock price = stock holders happy
A little dramatic that explanation but yes it definitely benefices apple, and Us as consumer too, competition is always good.
What?
T-Mobile is using 1700 UL / 2100 DL frequency which is the UMTS Specification 4.
While iPhone supports the "2100" UMTS, it is for the Europe/Asia frequency pairing which is 1900 UL / 2100 DL a.k.a UMTS band 1... I don't understand what's the hoopla here...
Until Apple includes 1700 Mhz support, there won't be any support for T-Mobile 3G. As simple as that...
That is probably why Nexus One was released in 2 different flavors for the US market
As far as T-Mobile changing both the UL and DL to use only 2100 that's rather funny because again, the 2100 in the iPhone is only for downlink and I don't think I recall any UMTS specification for 2100 UL/DL in a single stream.
Oh also, technically AT&T is using 820-840 for UL and 860-880 for DL. (Rough number but it portrays the idea of the range). Which is UMTS Band 5 spec.
That said, I wouldn't be surprised if Apple branches out to T-Mobile as well. This will require them to sell a separate version at least for this generation. Maybe they will include the AWS pairing for iPhone 5 and we can buy our iPhone 5 directly from Apple fully factory unlocked... Just like how they start selling unlocked iPhones in Canada this coming Friday
You don't have to start calling anyone names...and please don't type anymore...go read a bit... the 3G have a different radio than 3GS (3GS was the first one to support HSDPA at 7.2MBPS) and the iP4 have same radio (as 3GS) different revision.
T-mobile uses the AWS band. The 2100mhz spectrum for AWS isn't compatible with the UMTS I band 2100mhz in the iPhone.
It would be hilarious if it did since I just sold my 3GS to a guy who is using it unlocked on T-Mobile.
T mobile is full of CRAP!!! ive bounced back n forth between them and att for 5 years... heck i with them now in upstate new york... and i can say for a fact THEY DONT HAVE "4G" speeds and their 3g speeds are far slower than At&t.
Forget the titles of "4g" and "3g" its all about mbps (megabits per second) and from what i seen sprints 4g isnt at this point faster than Att 3g...atleast not in this area.
Read what "illutionz" posted above and learn a bit.
If your an electrical Engineer that designs Telecommunication devices I am George Bush
How is this even a discussion? Do you guys honestly believe Apple and T-Mobile would do this with NO advertising at all?