| reply to kvlou
Re: iPhone and HSPA+ said by kvlou:Does the iPhone utilize the 21 mbps? Cause I thought only the 3GS could connect to AT&T's upcoming 7 Mbps 3G. Yes It can connect to 21 Mbps. But....
And there is a BIG but, no phone is fast enough to handed a constant download of that speed.
Right now they all seem to have a limit of about 12 Mbps. The CPU/memory combo just can't handle anything that fast, and its not just the iPhone, its every phone I have seen tested has this problem.
The next generation of phones, with the Cortex A9 processor will be able to handle it fully.
Also I just want to add because I am tired of seeing people type this, the iPhone will NOT be coming to Verizon any time soon. This really proves it, if Bell and Telus went out a built a HSPA network, so they could have phones like the iPhone. It shows that apple is not going to build a a CDMA iPhone.
The iPhone will come to T-Mobile in the USA before anyone else, because they are expanding their 3G network faster then anyone else. |
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patcat88
join:2002-04-05
Jamaica, NY
kudos:1 | said by dlewis23:The iPhone will come to T-Mobile in the USA before anyone else, because they are expanding their 3G network faster then anyone else. We will see the CDMA iPhone before we see the AWS 1700 iPhone. AWS is used in exactly 1 country (USA) and with exactly 1 GSM provider (TM USA). CDMA is available everywhere except Europe and Australia (CDMA was shut down there), except about 1/2 the countries with CDMA are on 450mhz (ex-nordic analog bagphone band, zero chance of 450mhz iPhone), but besides that, it still leaves alot of countries and 100s of millions of users. China, Japan, South Korea, India, and South America have serious CDMA deployments. »www.cdg.org/worldwide/cdma_world···iber.asp |
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 tiger72SexaT duorPPremium
join:2001-03-28
Saint Louis, MO
kudos:1
 ·T-Mobile US
| reply to dlewis23
A 7.2mbps phone won't get higher than 7.2mbps. It's quite simple.
The iphone 3gs, HTC G1/Hero/Magic, Motorola Cliq, etc.. are all 7.2mbps max phones. With HSPA+ they'd get closer to their rated 7.2mbps max, but they're not going to ever go faster than their rated speeds.
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"What makes us omniscient? Have we a record of omniscience? ...If we can't persuade nations with comparable values of the merit of our cause, we'd better reexamine our reasoning."
-United States Secretary of Defense (1961-1968) Robert S. McNamara |
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1 edit | reply to dlewis23
Wrong. The iPhone 3GS can only connect at max 7.2Mbps HSDPA speeds for download and UMTS 384kbps for upload due to the chipset it is based on.
Adi |
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 ·Acanac
| reply to patcat88
said by patcat88:said by dlewis23:The iPhone will come to T-Mobile in the USA before anyone else, because they are expanding their 3G network faster then anyone else. We will see the CDMA iPhone before we see the AWS 1700 iPhone. AWS is used in exactly 1 country (USA) and with exactly 1 GSM provider (TM USA). CDMA is available everywhere except Europe and Australia (CDMA was shut down there), except about 1/2 the countries with CDMA are on 450mhz (ex-nordic analog bagphone band, zero chance of 450mhz iPhone), but besides that, it still leaves alot of countries and 100s of millions of users. China, Japan, South Korea, India, and South America have serious CDMA deployments. » www.cdg.org/worldwide/cdma_world···iber.asp A CDMA iphone will never happen. Also, you're wrong about never seeing an iPhone with AWS. Both AT&T as well as Rogers, Bell and Tellus have invested HUGE sums of $$ into AWS spectrum so you can BET that Apple will include the 1700Mhz frequency in a future iteration of their iPhone.
Adi |
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patcat88
join:2002-04-05
Jamaica, NY
kudos:1 | said by adisor19:A CDMA iphone will never happen. Also, you're wrong about never seeing an iPhone with AWS. Both AT&T as well as Rogers, Bell and Tellus have invested HUGE sums of $$ into AWS spectrum so you can BET that Apple will include the 1700Mhz frequency in a future iteration of their iPhone. Adi A 1700 handset will be a LTE handset, not a GSM/HSDPA handset with 1700. Not sure if LTE handsets will have CDMA/GSM fallback at this point. VZW is promising a forklift upgrade to LTE, unlike its 3G rollout.
ATT's AWS spectrum is fragmented »www.phonescoop.com/articles/arti···9&p=1495 , probably bought defensivly. Anyways Verizon has said only LTE is going on its AWS. ATT also said LTE only on AWS »www.unstrung.com/document.asp?doc_id=181827 . The chance of a HSDPA 1700 iPhone is Zero. |
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| I respectfully disagree. The complexity of adding the 1700Mhz band to the iPhone is very little : additional antenna is needed and the chip set needs to be certified for the new frequency. That's about it.
Adi |
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patcat88
join:2002-04-05
Jamaica, NY
kudos:1 | said by adisor19:I respectfully disagree. The complexity of adding the 1700Mhz band to the iPhone is very little : additional antenna is needed and the chip set needs to be certified for the new frequency. That's about it. Adi The complexity is very little, but corporations don't think like humans. A proper engineer would release a 1700mhz handset, a CEO would never greenlight it without a business agreement being signed first, by the carrier who wants that 1700mhz phone. |
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 en102Canadian, eh?
join:2001-01-26
Valencia, CA | reply to patcat88
Actually 2 countries... USA and Canada (unless you consider Canada an extra state)
It is most likely easier to program a GSM/HSPA chip to run on a different frequency than it is to deploy a different architecture (CDMA 2000 core vs GSM MAP core).
Those hundreds of millions (--
Canada = Hollywood North |
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 tobyTroy Mcclure
join:2001-11-13
Seattle, WA
·OlyPen, Inc.
·CenturyLink
| reply to dlewis23
said by dlewis23:The iPhone will come to T-Mobile in the USA before anyone else, because they are expanding their 3G network faster then anyone else. When they have such a small footprint, it is always much easier to upgrade the network. |
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 Frankis chillingPremium
join:2000-11-03
somewhere | reply to patcat88
said by patcat88:CDMA is available everywhere except Europe and Australia (CDMA was shut down there), except about 1/2 the countries with CDMA are on 450mhz (ex-nordic analog bagphone band, zero chance of 450mhz iPhone), I always wondered about that, why isnt 450mhz used here in the states? I'm not familiar with radio transmission or frequencies but I was under the impression that the lower the frequency the better the transmission into buildings and the less towers you need to put up?
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At first I thought everyone on the highway was drunk but then I realized I was driving in Florida  |
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bt
join:2009-02-26
canada
kudos:1 Reviews:
·Start Communicat..
| reply to dlewis23
Bell and Telus went out and built a HSPA network not just for the iPhone, but also because it gives them a chunk of the international roaming during the Olympics in Vancouver this winter. That's a large chunk of change that can go a long way to covering the (shared) cost of the build-out. |
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| reply to patcat88
I don’t think you got the memo. LTE will be data only to start (many years). And it’s going to take some time for the carriers build a business plan that monetizes mobile VOIP. I don’t know one carrier that plans on cannibalizing their revenue for the sake of innovation. |
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fiberguyMy views are my own.Premium
join:2005-05-20
kudos:3 | reply to adisor19
You guys really need to hang up the iPhone/CDMA argument once and for all.. the only and correct answer right now is "... NO ONE KNOWS"... anytime someone says "It's coming to CDMA" or "It will NEVER hit CDMA" has absolutely NO clue what they are talking about no matter what side of the hope coin they're on.. hasn't anyone learned that by now?
The ONLY thing for certain, right now, is that what ever side someone is on (be it they want it on CDMA or who say it will never hit CDMA) will be that either side will say "see.. I knew it all along"...
.. it's nothing more than a 50% guess right now. The one thing I will say, however, and it's been said many times before.. apple was hiring CDMA engineers as little as a year ago.. does that mean anything? No one knows... apple has been VERY good at keeping a tight wrap on things... so really.. don't say "never"... you CAN'T say "never" especially when the numbers speak different.. There are MILLIONS of people on CDMA networks in the United States.. that's potential revenue for apple.. If they stop seeing new sales, who knows if they open up to more technology.. besides, it's not like many people believe.. it's NOT hard to adapt a phone for different technology.. RIM has been doing it for years.. you guys make it out like it would cost bazillions or dollars to make a CDMA version of the phone...
The iPhone is still technically a new phone.. there is still a large market untapped for the phone...
The only thing I'd ever put my money on is that anyone here who thinks they know what the future holds for the iPhone... is prolly wrong! |
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 sporkmedrop the crantini and move it, sisterPremium,MVM
join:2000-07-01
Morristown, NJ
 ·Optimum Online
| reply to dlewis23
said by dlewis23:Yes It can connect to 21 Mbps. But.... And there is a BIG but, no phone is fast enough to handed a constant download of that speed. Right now they all seem to have a limit of about 12 Mbps. The CPU/memory combo just can't handle anything that fast, and its not just the iPhone, its every phone I have seen tested has this problem. Huh...
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with every mistake we must surely be learning |
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| reply to Frank
I think it's cause it's still used for the C-band satellite broadcast (the BUDS, Big Ugly Dishes).. Someone correct me if i'm wrong.
Adi |
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en102Canadian, eh?
join:2001-01-26
Valencia, CA | reply to sporkme
iPhone 3GS supports HSPA 7.2 (aka 7.2Mbps download and 2Mbps upload, if I'm not mistaken).
This would be like stating a CDMA EVDO Rev 0 phone can download at 7Mbps today.
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Canada = Hollywood North |
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| reply to bt
You hit the nail on the head.... |
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patcat88
join:2002-04-05
Jamaica, NY
kudos:1
2 edits | reply to Frank
said by Frank:I always wondered about that, why isnt 450mhz used here in the states? I'm not familiar with radio transmission or frequencies but I was under the impression that the lower the frequency the better the transmission into buildings and the less towers you need to put up? Because in the USA, the FCC for decades handed out 2 way walkie talkie radio channels to anything with a Inc on the end of it, and the warehousers will let go of it on a cold day in hell, and the rest is given to amateur radio.
»www.cdg.org/technology/3g/cdma45···tion.asp
»www.ntia.doc.gov/osmhome/allochrt.pdf
Plus the Ham radio lobby will fight to the end for their bands, and the so will all the businesses that don't use their endless bands.
»Re: Legislation Introduced in US Senate to Inventory Radio Spect
Some folks in congress are trying to force the FCC to do a spectrum inventory study, something that has never been done before in the USA, so congress can TRY (tough luck with lobbyist $) and revoke/evict all the warehousers and other poor excuses for radio channels and use them for something that actually helps citizens.
It would be really sweet if 450mhz band was opened up in USA, mountain coverage, deep inside concrete building coverage (Wal-mart/Home Depot/office tower), underground passages (subway/underground city/mall-ish), and areas where there are no towers because the NIMBYs are the zoning board, and all the carriers have a huge gap in the area. Of course a phone should use 450mhz as a last resort as to not congest it.
Edit: made a little chart to show the NMT CDMA bands visually, its basically 450-460 mhz for mobile tx, and 465-475 for tower tx, plus 2 more distant bands. Each license seems to be 5 mhz. A tiny tiny tiny amount nowadays. 1.25 mhz CDMA will fit, UTMS with its 5mhz blocks probably wouldn't. The 2 800mhz bands in the USA are 30 mhz I believe. PCS bands are 10, 20 or 30, although some have been subdivided to 5mhz I think. |
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| reply to lobsterbucke
not quite. only americans can connect to their HSPA network since the rest of the world cannot connect to the 850Mhz spectrum on UMTS. the rest will go to rogers since they have edge. |
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