AT&T Completes Nationwide 7.2 HSPA 3G Upgrade
- AT&T Completes Nationwide 7.2 HSPA 3G Upgrade - hspa - Gizmodo
Originally Posted by gizmodoAT&T has completed the software upgrade that prepares 3G cell sites across the nation for the 7.2 HSPA upgrade. The 3G speed bump will come as an enhanced cell site backhaul is deployed over the course of 2010 and 2011.
After full testing of HSPA 7.2 software, AT&T decided to expedite deployment of this initial upgrade, which will result in a better overall customer experience by generally improving consistency in accessing data sessions. The software upgrade also prepares the network for faster speeds and increases network efficiency.
The backhaul process has already begun in the initial test markets of Charlotte, Chicago, Dallas, Houston, Los Angeles, and Miami, and AT&T expects to have the majority of their 3G data traffic running on the 7.2 network by the end of the year.
Now all they need is the backhaul come on!!!01-05-10 06:46 PMLike 0 - Awesome. It's good to see Houston getting some love. I'm assuming the 9700 is compatible with HSPA, right?
Posted from my CrackBerry at wapforums.crackberry.com
Posted from my CrackBerry at wapforums.crackberry.com01-05-10 07:49 PMLike 0 -
- I would love for nothing more than to see this get completed. I hear too many stories of slow connections, dropped calls when handing off from 3g to 2g. I wonder if they will revamp all 2g towers to be 3g?01-06-10 09:46 PMLike 0
- meh, Verizon will have LTE out probably over halfs its network before AT&T even gets started on it, I mean its good that AT&T is finally starting to get with the program and realize their overall 3G coverage is fail, but why upgrade everything to HSPA 7.2 first, then to LTE, seems like it would be cheaper to just jump to LTE.01-06-10 10:03 PMLike 0
- meh, Verizon will have LTE out probably over halfs its network before AT&T even gets started on it, I mean its good that AT&T is finally starting to get with the program and realize their overall 3G coverage is fail, but why upgrade everything to HSPA 7.2 first, then to LTE, seems like it would be cheaper to just jump to LTE.
Either way, backhaul upgrades are going to take quite a bit of time, especially if you have a tower that just runs off of T1s (HDSL2/4) straight from a telephone central office, and not a fiber fed multiplexer, at the tower equipment hut.01-07-10 06:55 AMLike 0 - For us ATT customers this can be nothing but good news. With the rapid expansion of wireless use we better hope for even more good news in the future.01-07-10 07:07 AMLike 0
- When I first read the title I thought that that was pretty quick in addressing the Verizon's coverage challenge. Alas, it ain't so. Appears the true upgrade that customers will see is a ways off. Also, notice that the "You are here" tested speed is the same as EVDO Rev A which adds proof to the BS that ATT 3G is the fastest 3G.01-07-10 09:21 AMLike 0
- SevereDeceitSDIf I used AT&T for service I would drop them like a bad habit. Their network is so jammed and smartphone users are being pushed to sub 2G levels, even EDGE. If you cannot perform for what I'm paying you to do, bye bye...01-07-10 09:26 AMLike 0
- meh, Verizon will have LTE out probably over halfs its network before AT&T even gets started on it, I mean its good that AT&T is finally starting to get with the program and realize their overall 3G coverage is fail, but why upgrade everything to HSPA 7.2 first, then to LTE, seems like it would be cheaper to just jump to LTE.
Now AT&T is already HSPA 7.2 upgraded on the towers basically the software upgrade is done, the backhaul still needs to be put in place they need a lot more fiber connections which they are deploying as of right now. You say why doesn't AT&T go to 4G before Verizon beats them? Well to my understanding AT&T's new 3G technology supports upgrades to LTE so that means they might just need to software upgrade, or add a couple new stuff and there on the go. It sure will be easier then Verizon wireless I hear HSPA 7.2 leads to a very nice transition to LTE, while Verizon has to build their whole network from scratch.
I hope I explained everything clear so you can understand, I kind of suck at explaining stuff sorry if you didn't understand some things.
3G towers require new antennas. The 2G towers do not support 3G UMTS Antennas.Last edited by Chaldo; 01-07-10 at 01:29 PM.
01-07-10 01:26 PMLike 0 -
Verizon's evdo network which is slower then AT&T's 3G network first of all is 1.25Mhz wide. That is way smaller and would just be destroyed with the iPhones data intense. AT&T's network had a way more better chance of being successful with the iPhone then VZW's network did. A big part of that is the upgrades their HSPA network can make to support a lot more wireless traffic with higher speeds.01-07-10 01:33 PMLike 0 -
The Acela Amtrak trains can go 150mph but rarely reach that speed in use and most of the time are limited to about 75mph because of rail system (network) that is not built for the higher speeds. Same thing with HSPA.01-07-10 03:55 PMLike 0 - Not according to the graph that leads off this thread. If anything the EVDO is slightly faster in use than the HSPA.
The Acela Amtrak trains can go 150mph but rarely reach that speed in use and most of the time are limited to about 75mph because of rail system (network) that is not built for the higher speeds. Same thing with HSPA.
Let me show you some AT&T 3G speed tests done lately in some areas with 7.2 towers with the backhaul put in.
This is done with the iPhone 3GS which has the HSPA 7.2 chip in it.
This is from one user in California
This is from someone in DC
This is from someone in NC (very impressive and look at the latency very well)
There is no Verizon Wireless speed test on EVDO that has ever gotten that fast for download speeds.01-07-10 07:12 PMLike 0 - I agree AT&T was not ready for the demand of the iPhone and took some wrong steps in their network upgrades, but if you had the iPhone start off with Verizon. They would be in a worse position today. The iPhone uses so much data that AT&T's 3G network which is 5Mhz wide is having issues.
Verizon's evdo network which is slower then AT&T's 3G network first of all is 1.25Mhz wide. That is way smaller and would just be destroyed with the iPhones data intense. AT&T's network had a way more better chance of being successful with the iPhone then VZW's network did. A big part of that is the upgrades their HSPA network can make to support a lot more wireless traffic with higher speeds.
The reason being that GSM divides its spectrum into channels, then divides those channels into time slots. Those channels must be distinct. IIRC, a typical GSM "channel" is 200KHz.
My example isn't to any particular scale, it's just an illustration.
The way to counter the capacity for GSM isn't necessarily more spectrum, but more physical towers or antennas and base stations to manage the load, and facilitate more "channels" to be carried to the backhaul.
That's why I noted in my "solution" thread that AT&T may be ill equipped to build out to the density one finds in Europe or Japan. Part of that problem is that AT&T build most of it's GSM migration on top of its legacy TDMA network, which had smaller channels, didn't have a data infrastructure, and didn't need the density that GSM needs to be effective. This isn't universal though I don't think, because the real complaints seem to be in specific areas, though it's causing AT&T to play defense.
GSM forces a "physical" limit in the use of it's spectrum, through a literal division of spectrum and time. CDMA just uses code. Stack those users right on top of the other, it uses the whole spectrum. The challenges to CDMA capacity come in the area of power management under load, and the physical coverage can shrink under those conditions.
This upgrade will help with throughput once its implemented, which should help with the accessibility issues, since the data will be flowing faster, but it still amounts to having a high-speed circuit available only part time if you travel a lot outside of metro areas.01-07-10 08:18 PMLike 0 -
I will admit right now that I have not been able to duplicate this test, nor do I know how accurate these tests are. I just did another one that came in at about 950Kbps. It averages around 1100-1500 most of the time.
Now, which would you rather have? 756kbps 99% of the time? Or 3Mbps 30% of the time?01-07-10 08:25 PMLike 0 - You can't take tests on the blackberry because blackberry's show that test from you to RIM's servers I can do the same thing and pull up like 8mbps its all bull****. Blackberry's will not work for these kind of tests unless you tether them to your computer.
Just took one the max speed was 56937.5Kbits/s its the jump from the start to RIM's server. Its not accurate at all.Last edited by Chaldo; 01-07-10 at 11:06 PM.
01-07-10 11:04 PMLike 0 - You can't take tests on the blackberry because blackberry's show that test from you to RIM's servers I can do the same thing and pull up like 8mbps its all bull****. Blackberry's will not work for these kind of tests unless you tether them to your computer.
Just took one the max speed was 56937.5Kbits/s its the jump from the start to RIM's server. Its not accurate at all.01-07-10 11:29 PMLike 0 - Look at the graph. Evdo Rev A. is where Verizon is at and most likely stop until LTE. HSDPA is where AT&T is at. How is Evdo any faster?
Let me show you some AT&T 3G speed tests done lately in some areas with 7.2 towers with the backhaul put in.
This is done with the iPhone 3GS which has the HSPA 7.2 chip in it.
This is from one user in California
This is from someone in DC
This is from someone in NC (very impressive and look at the latency very well)
There is no Verizon Wireless speed test on EVDO that has ever gotten that fast for download speeds.01-08-10 02:55 PMLike 0 - Yeah, I would like you to do that same speed test on AT&T outside the city, Verizon would kick their *** then.
Yeah, I will take my vastly larger 3G over faster 3G. And Verizon will have LTE out first and will likely be finished first, though they have more equipment to put up, they seem to care about their customers more and they know how to build out a network. Verizon has had a much larger 3G network for years, AT&T is behind on that.01-08-10 04:32 PMLike 0 -
no, I am pretty saavy with the cellular technologies and stuff and no, Verizon has a larger 3G network, you cannot deny that, as it is fact, the map Verizon uses on their ad is AT&T's own map
and I not only rely on maps, I have tested the two side by side in many areas or my state and on trips to other states01-08-10 11:43 PMLike 0
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AT&T Completes Nationwide 7.2 HSPA 3G Upgrade
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