I recently got my Kaiser (tilt) and with the speed tests that I have done the fastest download speeds I get are around 700kbits. Is this normal?
On my Titan (Telus) Evdo Rev A I could easily hit 1600kbits.
upstread is about 350kbits vs 500 kbits for EDO Rev A/
The ATT person assured me that their HSDPA was faster than EDO.
If anyone has speed stats, that would be greatly apprecaiated.
Thanks,
David
Yeah man my hdspa through ATT is horrible as well. Dont have figures for you but it drags.
i disagree it depends where you are and then there are TONS of other factors that infulance HSDPA speed. i am in NYC and on good days i get 1.6MB yes you read that right BUT most days its between 900kbs and 750kbs. with all the new 3G iphones on the at-t network now i believe you will see At-t step up there speed before the end of the summer but remember there are TONS of factors that infulance the down and up speed. if your in a major city then your speeds will probably be a little faster.
Hang on, as I understand it (please correct if wrong) HSDPA was rolled out last year, and HSUPA has still to implemented properly?
Anyone?
yes that is correct..a big factor too is your device..i recently found this out but alot of the ca[abilities of hsdpa were meant to achieve via tethering..your device can only write so fast to its rom/storage card and it cant really meet the demands of the downlink speeds of your umts signal so you have a bogged down speed of usually no more than 1mbit (ive NEVER gotten over 900kbit) but tethering you can get upwards of 2mbit
I tried my test with and without tethering. Without tethering it was about 700kbit, with tethering it ranged from 700k to 900k.
This is about half the speed that I had previously with EDO rev A.
Furthermore, what really hurts is the latency. With EDO-A I had about 40ms, with HSDPA (and I believe HSUPA, as someone from AT&T told me) I get close to 500ms.
I did notice something odd: With sppedtest.net, it claims that my nearest server is somewhere in Chicago or something, with with EDO-A it was right in Toronto where I was.
I have removed the hidden proxy, but I suspect that my data may be going through some odd place in the middle of the US. New York is a lot closer to Chicago than Seattle is.
I wonder if there are settings that we can make to access a different data site, or if we are just using a bad DNS server that directs us to a non-ideal site.
For the record, I generally install "ATT settings", turn off the proxy and then "Remove hidden proxy". I have not tried using the operator config program that is supposed to set things up automatically.
Btw: All tests are with full bars and Radio 1.71????? (e-monster) and a windows mobile 6.1 ROM with Internet sharing 6.0 to allow free tethering (at least I think that is what it is for)
Regarding storage, I am surprised that this could be a limiting factor with the Kaisers RAM and the storage cache sizes that I use.
pidsw said:
I did notice something odd: With sppedtest.net, it claims that my nearest server is somewhere in Chicago or something, with with EDO-A it was right in Toronto where I was.
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Click to collapse
So are you using your Tilt in Canada? Is so, then you are not on AT&T's towers, and the speeds are the fault of the roaming provider, not AT&T.
I get roughly 1700kbps on hspda here in Rochester NY. Im running Slueth v3.0 Rom.
Well, I have HSDPA and im running at 1113 kbps. I have done a speed test 3 times and its around those numbers. So maybe its the radio version or rom. or it could be the coverage area. Im in the NYC.
i work at AT&T not for but at, and i have a tilt unlocked the HSDPA and was averaging 1400kbps and we have little GSM towers in our building(they habg from the cealing and look like upside down vases. so i'm guessing this would be pretty average for "good network conditions."
-MM
Sorry that was confusing: To clarify, I moved to Seattle from Toronto and I signed up for AT&T.
I have a feeling that it might have to do the logon and/or DNS results. My account says wap.cingular, when I ping this, it resolves to different IP's on a regular basis (load balancing?) But they are generally far away.
I got lucky later on one night and managed to get a wap.cingular address in San Jose and my speed was 1000kps according to www.speedtest.net using tethering.
On another test I got an IP in florida and I had 500kbps and a ping of 0.9 seconds.
When using OpenDNS I seem to get better results, but that may just be placebo.
Is there a way to use a hard coded IP rather than wap.cingular that is located in Seattle? I am not sure how "wap.cingular" is used explicitly as I cannot enter an IP and have it just work.
You can hardcode DNS addresses by editing the settings of your MEdia Net connection. I remember seeing in a different post that people seem to have good success with using OpenDNS' servers.
Hsdpa/Hsupa - Let's See What We Got Out There
I have the Hyperdragon Rom where it has the ability to select whether to enable the "H" HSDPA/HSUPA Mode but I have no idea which one is hooked up when the H is displayed.
Is there a tool that changes between say, an "H" and an "Hu"?
Also, can someone tell me where to learn more about the Open Server stuff for cingular?
Thanks.
pidsw said:
Sorry that was confusing: To clarify, I moved to Seattle from Toronto and I signed up for AT&T.
I have a feeling that it might have to do the logon and/or DNS results. My account says wap.cingular, when I ping this, it resolves to different IP's on a regular basis (load balancing?) But they are generally far away.
I got lucky later on one night and managed to get a wap.cingular address in San Jose and my speed was 1000kps according to www.speedtest.net using tethering.
On another test I got an IP in florida and I had 500kbps and a ping of 0.9 seconds.
When using OpenDNS I seem to get better results, but that may just be placebo.
Is there a way to use a hard coded IP rather than wap.cingular that is located in Seattle? I am not sure how "wap.cingular" is used explicitly as I cannot enter an IP and have it just work.
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Click to collapse
Well, if you are actually PAYING for the PDA/Tether plan ( like me ), you can try using isp.cingular vs wap.cingular. It is definitely faster ( not a "placebo effect" ). My latencies are never in the 500's, although compared to my fiber line its still not comparable lol
Related
Is anyone else in Southern California experiencing extremely slow HSDPA network speeds from AT&T? I have 3 to 4 bars, and for some reason www.dslreports.com/mspeed/ is reporting speeds slower then 100kbits. When I turn off 3G/HSDPA manually and run under EDGE, I get about 130kbps in the same location. I have been traveling throughout all of Orange County, and it is the same everywhere I go.
I have tried loading different ROMS (ATT, HTC, Dutty's ROM) and Radio ROMS, but still slow speeds...
I am running under MediaNet configuration and I have disabled the Proxy Server.
Any help is greatly appreciated
Odd.. I'm in San Diego (center of SDSU right now), stock AT&T rom with proxy disabled. HSDPA full bars gets me 438kbps on that site with the 1mb download. 77kbps with edge.
YES!!!
I'm glad I'm not the only one.
dslreports also seems to give me slow speeds...dipping under 100kbs. with four bars 3g or HDSP.
I've been using this instead:
http://sanjose-speedtest.sprintbbd.net/
with that I'll usually get between 150kbs-325kbs. sometimes faster, sometimes slower. fastest i've gotten is 650kbs every once in a blue moon.
I was pretty unhappy for awhile...
however, tethered to a computer...
I find with speedtest.net using the Las Vegas server, late at night,
I will get 1200-1700kbs. ONLY the Las Vegas server though, every other server gives much slower results...especially the ones in Los Angeles. San Jose often gives me faster results than LA.
also tethered....the test over at stanford is nice because it analyzes your connection a little:
http://netspeed.stanford.edu/
i've actually disabled the HDSP because for me, over here, it doesn't help things...actually it makes it worse, because when I'm at the edge of a coverage area...my phone will just bounce between 3G->HDSP->3G->HDSP before establishing a lock.
i don't know about yours, but I bought my tilt on black friday in Irvine. media net, no proxy. when i had isp.cingular, it was generally the same...and not any faster.
Firstly, let me thank everyone who does all the SUPERB work on this site, developing software, ROMs, and tools that us normal users would otherwise never see...
Here's my problem:
I got a Kaiser with the shipping AT&T ROM on it - I'm in the US.
I wanted to get rid of the bloatware and other crap that AT&T puts on the device, and take it back to an HTC ROM.
The problem is, I can only connect to the EDGE network, and I'm only getting 40-60k transfers - I know that with my Samsung Sync (my previous phone) I was getting 1.3-1.5Mbps using the same site to test (http://text.dslreports.com/mspeed)
Is this a limitation within the HTC ROM? If so, does anyone know if newer HTC ROM's (perhaps even with WM6.1) will fix this problem, or do I HAVE to use an AT&T ROM to access the 3G (HSPDA) network in the US?
Thanks in advance for your time!!!
Do you see the icon 3G and it changes to H once you're accessing the internet? If no, you might want to check if you correctly config the connection.
I myself don't trust http://text.dslreports.com/mspeed when it runs on PIE web browser. I did the benchmark on 2 different types of connection, at&t HSDPA and Verizon FiOS* Wifi, and it comes up nearly the same speed 1.3-1.5Mbps.
*I have 15 Mbps download package.
Yes, it DOES do that (Mr President...lol)
What site do you prefer to test the speed of your 3G connection? I was hoping to use Speedtest.net, but doubt that they support mobile.
So, I guess that you're saying my connection is probably just fine, but that the site is problematic?
Thanks for the quick reply, btw!!
- Mark
I don't pay attention too much on speed. But, there are many ways to confirm that you're connected to 3G network.
If the answer is yes for any question below, then you're 3G.
a. Tethering internet via your PC on "internet sharing" mode and make a call at the same time.
b. Stream any audio broadcast with bitrate above 196Kbps.
Enjoy.
Um, where do you live? Pretty much only the major cities have 3G deployed, and even then, it's no guarantee. I live in Minneapolis where 3G was rolled out last November.
Lidberg said:
Um, where do you live? Pretty much only the major cities have 3G deployed, and even then, it's no guarantee. I live in Minneapolis where 3G was rolled out last November.
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I'm in Pittsburgh - I know for certain that I'm in 3G territory, as I just got the Kaiser a few weeks ago, and before that, was using a Samsung Sync tethered to my laptop, and getting 1.3 - 1.5 MBps....
UPDATE
Must have had a lousy signal where I was trying it before - I tried it again, using the same site, and was getting 500-600k - so I guess it's hitting the 3G network, but for some reason, changing the 3G icon to an H, presumably indicating HSPDA.
All's well...can one of the mod's please lock this thread? Thanks!
- Mark
Sorry if this has been talked about before but im in SoCal (Inland Empire) and ive never gotten above 800kbit/sec on either strictly 3G or HSDPA on my AT&T Tilt. Ive also tested it in Northern California in the Bay Area and same thing..even with full bars. Its happened on any rom ive ever tried and every radio, nothing changes the results. Anyone with similar speeds or with advice to why im not achieving over 1Mbit/sec.
pazookie said:
Sorry if this has been talked about before but im in SoCal (Inland Empire) and ive never gotten above 800kbit/sec on either strictly 3G or HSDPA on my AT&T Tilt. Ive also tested it in Northern California in the Bay Area and same thing..even with full bars. Its happened on any rom ive ever tried and every radio, nothing changes the results. Anyone with similar speeds or with advice to why im not achieving over 1Mbit/sec.
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It's because AT&T doesn't have the backhaul speeds. For example, just because you WiFi connected to your router at G or N speeds doesn't make your cable/dsl download any faster.
And now there's iPhones to suck up whatever there was before.
but att is already supporting 7.6mbps right?
Download speeds can be affected by the radio version. Over here on the East Coast, I regularly get speeds over 1mbps. The newer Neon radios seem to be the fastest when it come to tethering.
ya im running a neon radio (1.58 .27.15) ..I notice a lot of people report their speeds from tethering..I run my speed tests through opera9 on dslreports ( the larger 400k/1mb file version) could this be affecting my results?
Running a speedtest from your phone's browser will always produce a lower result than tethering to a PC by USB.
When tethered, I get around 1.2-1.3mbps on average. But on my phone itself, I rarely break 900kbps. My guess is that the phone cannot physically handle data packets coming in much faster than that. (When writing to internal storage that is)
pazookie said:
ya im running a neon radio (1.58 .27.15) ..I notice a lot of people report their speeds from tethering..I run my speed tests through opera9 on dslreports ( the larger 400k/1mb file version) could this be affecting my results?
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I can't find this NEON radio you're refering to. Don't you mean v1.58.25.17 instead of .27.15?
Main reason: congestion. Socal, inside major city limits has been pretty congested, and in some places, really bad. It just depends on where you are. Att is working on 850mhz overlays, starting on the outskirts and working in, as reports suggest. Just hold on.
Best i've pulled in my indiana crap town is 1.3mbps, mspeed average on 1mb test. This was during off peak times, try testing at 1am on a weekday. We have a low pop density compared to large cities so that helps.
Att isn't 7.2mbit yet, last we heard though, it was in their labs, and intended on deploying 20mbit (roughly) next year, said De La Vega.
Just to clear your device of any fault, run the test on wifi, should do roughly 1.8mbit.
The fastest I got using HSDPA from dslreports.com/mspeed 1mb is 1335kbps. With WiFi I got bewteen 1.7-1.8mbits
This thread is only for users that are UK T-Mobile customers that have only basic Web N Walk. In fact it might only apply to customers that have moved over to Web N Walk on or after January 2008
I have noticed that my download speeds seem to be teetering at the lower end of 3G, slightly better than GPRS, but no way near HSDPA speeds. The test is located at the following site, if you are unable to use Opera try Pocket Internet Explorer.
www.dslreports.com/mspeed
I have repeated this test at various points throughout the day and with various signal strengths and have never been able to download faster than 190kbit/sec.
I have been speaking to T-Mobile regarding this issue and they state that HSDPA is only available to Web N Walk Plus customers and not the basic Web N Walk customers. However, colleagues of mine are on the basic Web N Walk and are able to download at HSDPA speeds.
T-Mobile are unable to provide written proof stating that HSDPA is unavailable on basic Web N Walk, the terms and conditions do not state this, and the 1GB fair use policy should ensure no one abuses the additional speed.
Furthermore, the MDA Compact IV is sold as a HSDPA enabled phone. I therefore conclude that either I have been miss-sold my contract / phone or T-Mobile have incorrectly disabled HSDPA.
What I would like to do is see if others using the MDA Compact IV are in the same situation, so could you go and do the above test if you are a UK T-Mobile customer on basic Web N Walk and report back on what speed you get.
My HSDPA connection is patchy at best, in that the coverage is poor (as is T Mobile in general). However I have just tried the speed test and I got 1157 mb for a 1 MB file. Doesn't really seem representative of my usual speed experience though.
cojones said:
My HSDPA connection is patchy at best, in that the coverage is poor (as is T Mobile in general). However I have just tried the speed test and I got 1157 mb for a 1 MB file. Doesn't really seem representative of my usual speed experience though.
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Click to collapse
Are you on the basic Web N Walk tarif and when did you move over to it?
Whoever told you this about HSDPA at certain tariffs on T-Mobile is talking tripe I'm afraid. HSDPA is standard on T-Mobile 3G across the UK now, as is HSUPA UK wide and in London area faster HSDPA.
I'm sure you know that the figures are published at best and you will rarely hit what they publish.
In my area I get a four bar signal but at best I get just over 1mb connection with it usually being around the 300-600 mark. Uploads however have seriously improved since the network upgrade a few weeks ago.
I'm on £7.50 w'n'w and the most i get is 300kbps which is the same as when i turn off hsdpa and just use 3g - still 300kbps.
What the hells going on?
nokmond said:
I'm on £7.50 w'n'w and the most i get is 300kbps which is the same as when i turn off hsdpa and just use 3g - still 300kbps.
What the hells going on?
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Right this is FACT and it IS on terms and conditions, I read them.
The reason I aborted my pre-order of MDA Compact IV was (amongst others) the fact that the standard web n'walk IS 3G speed only at up to 384kbps.
When I found out I flipped and cancelled and rang Orange retentions and got such a blinding deal I stayed with Orange ! Orange = HSDPA any package.
T-Mobile customers in the UK who have been on web n walk basic for ages may be under old agreement when it was HSDPA. You have to be on wnw PLUS now to get HSDPA for new customers.
dont get it, whats the deal? Why not pay another 5 or so quid and have HSDPA?
Afterall, why do you need HSDPA if your just browsing on your phone???? The only real reason you need HSDPA is if your using your phone as a modem which basic package doesn't allow you to do anyway.
This just makes sense.... so, whats the problem? Its not like its 10's of pounds of diference, its the price of 2 pints in a pub?
HSDPA is useful for web browsing simply because the pages load up up so much quicker.
I use mine to do a bit of browsing on the train after leaving work, and the difference when the coverage drops off to standard GPRS along the journey is very noticeable.
To say that you don't need hsdpa for browsing is like saying we could all make do with 56k modems for browsing at home. Yeah sure we could. but it would be painfully slow.
I am on T-mob, but have the HTC version. When I first got it there was no hsdpa on my account. when the phone detected a hsdpa signal, I could not connect at all, so I phoned 150 and asked the guy to make sure that hsdpa was enabled for my account. He said it should be but he would check. When he checked the system it wasn't set up, but he enabled it there and then, and it was available pretty much straight away
I am on flext 20 + w 'n' w basic
I'll try the dslreports thing tomorrow, but pages do load up much quicker when I have a H signal indicated
GPRS is commonly known as 2.5g
3g is "3g"
HSDPA is commonly known as 3.5g
Speed limits for each
btw: i'm fairly sure the phone supports HSUPA with a quick registry setting. Remember also that HSDPA is a BURST technology, not a sustained/constant technology.
Just because you dont have a "H" in your bar, doesn't mean your getting slow speeds - 3g IS quick enough for webbrowsing. You get normal 3g connection on Web'n'Walk basic.
So my question still stands, why do you NEED 3.5G HSDPA speeds for webbrowsing when 3G (Normal) IS way fast enough? If I was T-mobile I would use the same method for discouraging people using the phone as a modem when they are not supposed to - mind you 3g is still waaaaay fast enough for most stuff.
The fact you couldn't connect when your phone shows a H in the bar is odd... glad you got that sorted out.
imranbashir_uk said:
Are you on the basic Web N Walk tarif and when did you move over to it?
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I was on the basic package, I have not requested to move up neither have I been told that I have been moved up. The potential difference here is that I was on web n walk before Jan this year.
Good luck in trying to sort this out. i've decided to go (back) to Vodafone at the end of my contract in Nov because T mobile network coverage is so shocking.
did a few speed tests on mine this morning:
on the train
GPRS - 37 kbps
HSDPA - 498 - 1514 kbps
at my desk
HSDPA - 778 - 1231 kbps
was on web n walk basic for two years before upgrading to the diamond
and your trying to tell us 37k/s isn't fast enough to render webpages? If your experiencing slow webpages with this speed, its not your link at fault.
edit: at its at least 3x faster than you could dream of on a 56k modem!
Everyone who has responded so far has been on the Web N Walk package before Jan 2008. I would like to hear from someone who has only recently moved over to Web N Walk.
@ Monty Burns
1. There are better was to ensure that Web N Walk basic customers do not use their phone as a modem, such as a fair use policy, which they have. Why restrict how fast someone gets to that 1GB limit!
2. Yes back in the day 56K seemed fast, but you got to understand that the bar is constantly moving, back them most pages where static HTML, these days we have java, video streaming, audio streaming, not to mention bandwidth intensive apps such as Google maps.
I do notice the difference between what is effectively 3G speeds and WiFi. It’s frustrating and T-Mobile should see common sense and allow everyone to use HSDPA, it doesn’t cost them any extra to do so.
@ ns73
Please point me in the direction of the terms and conditions you read, as I cannot find this anywhere!
yes your correct, the bar is higher but .. why do you need 3.5g to do it? 3g is way fast enough and will happily fill up your phone very quickly!
I suspect there is some form of limitation to HSDPA connection/s which is why, if i was t-mobile, i would limit it to those paying for the full package. As your only supposed to be browsing, you just don't need 3.5 when 3 is still massive overkill.
I remember few years ago when HSDPA just came out I rung up T-mobile and they had to tick the box for HSDPA enabled. I believe you can also do this yourself by logging into the T-mobile website and managing your account
You don't get HSDPA with standard WNW, and while it may not have been stated when you connected, it was also not stated that you WOULD get HSDPA. If you connected to WNW over a year or so ago you may have slipped the net, and still have access at the higher speed.
As far as "ticking a box" is concerned, I don't believe this option is still present on their' systems, and even when it was it was simply for legacy purposes and you should have never have had it ticked in the first place.
The £5 isn't much extra to get the HSDPA, I don't mind paying it.
OK! said:
You don't get HSDPA with standard WNW, .....
The £5 isn't much extra to get the HSDPA, I don't mind paying it.
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Click to collapse
Exactly. Cough up and get the larger packet (about 2 beers a month!!!? If you can't spare that, you have more serious concerns), live with no HSDPA (why do you need it anyway when your not allowed to use it as a modem) or go to another telcom.
well i've just taken out my compact IV on tmobile, flext 30 with W+W my signal at home is shocking, but at work connects over HSDPA and returns between 992 and 1324 so far, just with standard and new line taken out on tuesday
@ Monty,
I have to disagree, while you may feel that 3G does fill your screen quickly enough, I find it slow and tedious. Everyone is going to have their own opinion on what they consider to be acceptable. I do not consider my current browsing experience to be acceptable.
There is a limitation to the number of connections per cell station. The cell station has algorithms built in to automatically share the data between HSDPA, 3G, GPRS, and GSM. However, this ratio is adjusted every few milliseconds on the fly and would only be a factor if a large number of people are downloading at the same time.
@ lx_t,
This option is no longer available on the T-Mobile website.
@ OK!
Your right WNW basic does not state that it includes HSDPA, but neither does any of the other WNW tariffs, so in that case as its not explicitly stated one way or the other, it is implicitly implied. Furthermore the MDA Compact IV is sold as a HSPDA phone, it does not state that this is subject to being on a particular WNW tariff.
imranbashir_uk said:
@ Monty,
I have to disagree, while you may feel that 3G does fill your screen quickly enough, I find it slow and tedious. Everyone is going to have their own opinion on what they consider to be acceptable. I do not consider my current browsing experience to be acceptable.
...
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Click to collapse
Thats not the link. you cannot notice the diference between 3g and 3.5g on a web browser on your phone... unless the web page has tens of links to some seriously high megapixel pictures of course but then, the phone would cave in anyway.
Check out the link i posted above for the speeds. 3g is like using a ferrari to race a push bike when it comes to speeds needed for web pages. HSDPA is designed for "modem" use and heavy downloading and for web browsing is like using a Veyron.... if you think 3g isn't good enough, your never going to be happy with web browsing on a phone.
I've spent more than £5 pounds worth of my time trying to explain this and thats all it would cost you a month to get a little more priority on the t-mobile network and a higher fup. Why are you so cheap? Why should you get maximum speeds on cheapest package? its FIVE pounds.
Now, where's the nearest wall, i think it might be less painfull head butting it than this thread ....
Is there a way to force HSDPA? I have it enabled (using advance config) & rarely does it connect to it, uses Edge majority of the time.
if the place you are present have poor hsdpa support it
roam to other network types
would you rather have it loose connection ?
+1 on what Rudegar sad, also its BTS who decide for you when HSDPA should kick in. If you are in area you will recieve.
So theres no way to force the connection?
I had three bars earlier when connection & worked awsome, now Im on edge & fights to get 10kbps down. Ive noticed this in the cities Im in often like Roanoke,VA, Atlanta, Montgomery,AL, Virginia Beach, Detroit.
cptnslow said:
So theres no way to force the connection?
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Click to collapse
It's just like if you have a 56 kbps modem - remember those antiques from only 10 years ago - there's no way to force a higher connection speed without unreliability and connection drops coming into the equation. Maybe it's time to trial another network (perhaps with a pay as you go sim) and see how their offerings compare.
Where in Va Beach? I live in Va Beach and get HSDPA pretty much everywhere i go.
ProudPop83 said:
Where in Va Beach? I live in Va Beach and get HSDPA pretty much everywhere i go.
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Like I stated above its the base station who opens up for you when you download or stream. You are not in HSDPA constantly as it does not enable until you do the above.
raiisak said:
Like I stated above its the base station who opens up for you when you download or stream. You are not in HSDPA constantly as it does not enable until you do the above.
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Click to collapse
]I think that'll be very network provider dependent because where I live its always HSDPA irrespective of whether a data connection is present. Depending where I travel to, I have had cases where the connection drops to 3G but then as soon as I initiate a data connection it jumps up to H and I've had further cases where it's E or G and a data connection makes no difference.
Flying Kiwi said:
]I think that'll be very network provider dependent because where I live its always HSDPA irrespective of whether a data connection is present. Depending where I travel to, I have had cases where the connection drops to 3G but then as soon as I initiate a data connection it jumps up to H and I've had further cases where it's E or G and a data connection makes no difference.
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Click to collapse
http://en.wikipedia.org/wiki/HSDPA
Fast packet scheduling
The HS-DSCH downlink channel is shared between users using channel-dependent scheduling to make the best use of available radio conditions. Each user device periodically transmits an indication of the downlink signal quality, as often as 500 times per second. Using this information from all devices, the base station decides which users will be sent data on the next 2 ms frame and how much data should be sent for each user. More data can be sent to users which report high downlink signal quality.
The amount of the channelisation code tree, and thus network bandwidth, allocated to HSDPA users is determined by the network. The allocation is "semi-static" in that it can be modified while the network is operating, but not on a frame-by-frame basis. This allocation represents a trade-off between bandwidth allocated for HSDPA users, versus that for voice and non-HSDPA data users. The allocation is in units of channelisation codes for Spreading Factor 16, of which 16 exist and up to 15 can be allocated to HSDPA. When the base station decides which users will receive data on the next frame, it also decides which channelisation codes will be used for each user. This information is sent to the user devices over one or more HSDPA "scheduling channels"; these channels are not part of the HSDPA allocation previously mentioned, but are allocated separately. Thus, for a given 2 ms frame, data may be sent to a number of users simultaneously, using different channelisation codes. The maximum number of users to receive data on a given 2 ms frame is determined by the number of allocated channelisation codes. By contrast, in CDMA2000 1xEV-DO, data is sent to only one user at a time.
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raiisak said:
http://en.wikipedia.org/wiki/HSDPA
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I was actually looking at that page a few days ago with regards to speeds but it doesn't change the fact that in some locations my phone shows the H icon when there isn't even a hint of a data connection present and no voice call taking place at the time either. Under such circumstances, it could have quite easily dropped back to a 3G icon until HSDPA is needed but it nearly always doesn't. The only place I've found it does work like this, interestingly enough, is when I'm going past the O2 UK HQ beside Slough train station where it will drop back to 3 G unless a data connection is in place.
When I was using Vodafone UK, this did not happen in the same loacation (never tested for this near their HQ out at Newbury) but again I experienced many cases where the H icon was shown on the phone but not needed. Thats why I've mentioned it's network dependant. I take your point that the specs dictate it should work otherwise but in my case thats not played out to be how it's gone.
If you want I can make your icon show a Q or Z for that matter, 3G as ONE a connection is a misleading term as it describes many technologies. Normal HSDPA suppose to show H when used and 3G idling. Remember the 6.1 ROM`s who displayed H all the time HSDPA or not? If you read up on wiki you will understand what I sad about HSDPA in earlier post. You cant draw conclusions based on what icon your phone is showing as the HSDPA technology will work as it always has.
So as long you do not stream/call of use for HSDPA you will not stay in it. So if you going to force it to stay in HSDPA you need to constant stream, an idle HSDPA connection swich over to 3g and back once called upon. So correct me if I am wrong here ... And I preferred documented. The only thing that is provider dependent here are if they support it and the coverage of it. The technology which I was talking about has nothing to do whit just that.
Flying Kiwi said:
I was actually looking at that page a few days ago with regards to speeds but it doesn't change the fact that in some locations my phone shows the H icon when there isn't even a hint of a data connection present and no voice call taking place at the time either. Under such circumstances, it could have quite easily dropped back to a 3G icon until HSDPA is needed but it nearly always doesn't. The only place I've found it does work like this, interestingly enough, is when I'm going past the O2 UK HQ beside Slough train station where it will drop back to 3 G unless a data connection is in place.
When I was using Vodafone UK, this did not happen in the same loacation (never tested for this near their HQ out at Newbury) but again I experienced many cases where the H icon was shown on the phone but not needed. Thats why I've mentioned it's network dependant. I take your point that the specs dictate it should work otherwise but in my case thats not played out to be how it's gone.
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raiisak said:
You cant draw conclusions based on what icon your phone is showing as the HSDPA technology will work as it always has.
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Why would my phone lie to me like that given (in the same locations) it reliably and correctly detects that it is in 3G and then when a data connection is initiated bumps up to H. There is no doubt to me that it is reliably detecting the connection type as it does this every time I travel through Slough on the train if I initiate a data connection. Similarly it seems as if the H, 3G, G and even E, do correctly display under the right circumstances. Again, I've no dobt about the HSDPA specs and how it should work, I'm just saying in reality with my HTC Official ROM'd phone (both using my current setup and previously WM 6.1), it's behaved that way in practice.
I think the OP wants the same sort of performance and indications from his phone that I'm getting from mine and I know no way to 'force' an HSDPA connection and get appropriate speeds if the network infrastructure and signal strenth aren't up to the task. On the other hand there maybe another network that operates much better in a given area which will provide whats required and there's little cost in doing some 'trialling' of competing networks in the areas involved.
Raiisak said:
You cant draw conclusions based on what icon your phone is showing as the HSDPA technology will work as it always has.
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Flying Kiwi said:
Why would my phone lie to me like that given.........
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Listen mate, I dont know why you want to argue or what you want to argue about???? Twisting and turning my answers are not going to do the trick here, OP asked about forcing he`s device in HSDPA, I answered that it would not work cause HSDPA does not work like that. Then you come in and start talking about something completely else and nagging on my answer?? I do not care what your phone shows and how it work in local area`s nearby you as it has nothing whit my answer or on topic IMO to do.
Raiisak said:
Like I stated above its the base station who opens up for you when you download or stream. You are not in HSDPA constantly as it does not enable until you do the above.
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Flying Kiwi said:
]I think that'll be very network provider dependent because where I live its always HSDPA irrespective of whether a data connection is present. Depending where I travel to, I have had cases where the connection drops to 3G but then as soon as I initiate a data connection it jumps up to H and I've had further cases where it's E or G and a data connection makes no difference.
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This comment triggered it all, if I had knew that you would not be interested in my answers on your comment I would not have taken the time to explain about HSDPA.
Flying Kiwi said:
I know no way to 'force' an HSDPA connection
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Then what do you argue about here? I am not going to comment this further as what ever I say does not get to you and there is nothing to more discuss.
Nothing personal
raiisak said:
Listen mate, I dont know why you want to argue or what you want to argue about???? Twisting and turning my answers are not going to do the trick here, OP asked about forcing he`s device in HSDPA, I answered that it would not work cause HSDPA does not work like that.
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There's no need to bring out the 'listen mate' with multiple questionmarks on the end. I do listen where I think something is clear and correct. If I think there's more to an issue, I chime in. In response to your link to that wikipedia page which outlines how it should work (in an ideal world), I'm telling you that some networks do not appear to implement things according to the official specs so it won't necessarily behave that way. My examples based from usage/observations in many different locations around the UK prove that point and as I mentioned that was also the case when I was with Vodafone here so that's all, no more, no less and no intention to offend.
Then you come in and start talking about something completely else and nagging on my answer?? I do not care what your phone shows and how it work in local area`s nearby you as it has nothing whit my answer or on topic IMO to do.
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There's those multiple questionmarks again, calm down, I'm not having a go at you. I think it's best for the OP to make that determination whether my comments are relevant as we both replied in order to try and help that person out. You with some might say the 'official' line and me with the 'in practice' line. In the end we agree the answer as to what can be done to force HSDPA is the same ie nothing. I added the possibility that if better performance is saught, a network change may provide this.
This comment triggered it all, if I had knew that you would not be interested in my answers on your comment I would not have taken the time to explain about HSDPA.
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I was interested all right, I felt your original answer and the subsequent wikipedia link didn't paint the whole picture so that's why I came in. I trust that you will eventually understand and accept that. Remember, I'm not having a go at you