Database Users

HSDPA/3G automatic switching

Hello,
I have just upgraded to the official GPS ROM and I am on the Swedish 3 operator. I have noticed since the upgrade that the network connection is switching from 3G to HSDPA when there is a demand of bandwidth or simply when there is data in either direction.
I can see that the purpose of this was to make it possible and more reliable to place and receive calls during data sessions. I have figured out though, that with the old ROM, there was no such switching (but there was no distinction with the icon, so you really had no idea) and the connection speed was always constantly 1Mbits/s when using Internet Sharing for example. Now with the HSDPA/3G switching/throttling, the connection often drops down to 3G speeds and Skype-calls are lacking quality from this a bit when using Skype in the car which i do quite regularly nowadays using my Jabra JX-10 headset.
I also realize that there is still a problem with outgoing and incoming calls during these automaticly switched-on HSDPA-sessions. That is probably why HTC has decided to keep the HSDPA sessions as short as possible, that's fine, but what boggles me is the algorithm used for the switching. It seems to always kick in HSDPA in the beginning of a new data session, and after a short time of inactivity (while pondering what favourite page to open this time) the connection drops down to 3G and it won't kick back to HSDPA even when you start browsing again, until a certain period of "non-HSDPA-ratio" has been reached and the phone thinks it would be OK to kick in the highspeed again for a little while.
I also noticed that using Skype would keep HSDPA alive once you place a call from a fresh started data session and keep talking ;-)
This is not a particular problem to me, I was just wondering of anyone else here has noticed and had an idea of what the programmers had in mind?
BTW: I am running TomTom 6.010 and Franson GpsGate on the machine now and it works absolutely like a dream. I used to have a Blue-I Bluetooth GPS in the car (Trimble based chipset, only 8 channels but quite OK piece of hardware) but this is far superior when it comes to HOLDING a persistent fix also when moving indoors. The TTFF is quite fast as long as you are outdoors, most of the time i have a fix before i leave the parking space. I noticed there being a dynamic number of satellites of the receiver, sometimes i see 7 out of 8 satellites, and then sometimes i see 10 out of 12! Anyone noticed?
Thanks in advance! Cheers...

It’s not your phone that decide to change from HSDPA mode to normal R99 (384kbits) mode and vice versa. Everything are always controlled by the network. The behaviors that you describe are normal. Besides the HSDPA is quit new for the operators and new parameters needs to be tuned for best performance for every users.
BTW, the degradation that you notice. You are not alone that use HSDPA.... Its finally the big success for 3G

I use Phone Alarm profiles and BandSwitch to control my connection based on business hours. I get a poor singal unless on 3G where my office is located. I force it to GPRS otherwise to save battery.

I have similar problems, cannot receive or start calls when HSDPA connected. Shouldn't that be possible anyway, calling and transferring data at the same time? Or is this a network provider problem?

I too am on the Swedish operator 3. I have an unlocked, non-operator distributed HTC TyTN that I had updated the radio to 1.40xxx and the ROM to Black Dymond 3.5 and was having the exact same problem. I could reproduce the incoming call not getting through error every single time I got the phone to go into HSDPA mode.
After some initial searching I read somewhere it was network dependent (Nokia switches vs Ericsson) and the only way to solve it was to disable the HSDPA using e.g. HTweakC, which I did and it solved the problem, but then of course I couldn't take advantage of the high-speed data access, which was the major reason I got this phone.
I recently noticed that 3 released a new extended ROM with instructions to update the ROM to the latest (as is available on the ftp here) then install their ExtROM. I went to the trouble to try and breakdown what was in this extended ROM, but being a newbie to pocketpc it was all hyroglyphics to me, so I went ahead and installed it over my old HTC ext ROM (which I saved for later use just in case).
When I get around to it I may mount this extended ROM here (I have it, but don't have too much time to put it up right now, so someone may beat me to it).
Anyway, Black Dymond 3.5 didn't install the Extended ROM after a hard reset (assuming that was the intention), so I did it myself afterwards. One initial bug that showed up quickly was the Comm Manager not wanting to start saying it would only manage a max of 7 items (whatever that means). So I installed Schaps latest Comm Manager and it worked fine.
Well, guess what, now there's a daemond that starts on boot and the phone app is different (another bug is that the text on the phone app buttons remain in the 3 theme although I changed back to black, but that's minor), but now I cannot replicate the no incoming calls during HSDPA error.
Apparently they've added something that makes the phone connect properly to their 3G/HSDPA network for call handling. Now I've got full HSDPA speed and no problem on incoming calls (plus still have Black Dymond's great VOIP/SIP WM6 solution).

Ok, as a noob I of course missed the fact that the daemon starting at boot is Voice Commander. Still the actual phone app/dll is somehow different with this ExtROM and it's solved my problems.

Really annoyed data connection problems, and mini review

Got my blackstone today. Network unlocked and my step back into the world of windows mobile.
I stuck an O2 payandgo simcard in and connected the WIFI.
I then started playing, after a bit thought lets see what the 3g data speed is like found the o2 settings and set the data connection slider to on.
I moved out of range of the wireless and went on a couple of websites speed was good and useable for facebook etc.
However one massive problem on reconnecting to the wifi I left the data connection open as you would I mean it's on all the time right.
All of the traffic from the following web browsing nailed my £10 down to 17p.
It would not use the wifi saying in google maps "an internet connection is required" if I turn off the 3G data connection it connects through the wireless, turn it back on and it *****es and moans at me.
WTF I said rather loudly, so a data connection over 3G is a higher priority than my 20Mb cable line here over wireless.
The web stuff is good although opera is a bit irratating at times, we need skyfire for this beasty.
I love the screen and the keyboard works well. The touchflo is lagging quite a lot and the screens can take a bit of thinking before they close.
Not sure if I need to upgrade the firmware. 1.14.405.3 (222373) WWE.
I am really hacked off as now I have to put another £10 on the phone to test properly within my 14 days. Or just straight up send it back and get an X1 or an Omnia. Help me out guys.

Works fine for me, wifi prioritised over 3g whenever it's connected. However, some apps only select which connection to use when they're started, can't remember if this applies to googlemaps. Try restarting it and see if it works over wifi.
Useful tip if you want to control what uses 3g: goto control pannel/buttons, and set the end key to disconnect 3g. Then you have a quick shortcut to turn it off, and you can see at a glance in the status bar if it has reconnected (the H above the signal strength). It's also useful if you set the X button to close apps rather than minimise, otherwise you might still be using an app that thinks it's on 3G even when you come back into range of wifi.

Thanks for the reply arfster. What you say makes perfect sense, I have used the Tweak HD to change the close on x and set the end button as a 3g off switch. Will put another £10 on and see how it goes

With Tweak HD you can easily make the performance of the TF3D alot better. Made the device much better workable for me.

I have changed some settings and it has improved, I'm going to have a proper play with it when it's charged and some stuff has finished copying to it Overall I am very pleased with the hardware (camera excluded but I knew that), it makes one of the guys Iphone's look weak and feeble! the 8gb card in the box was a bonus as well
It's just some bits with the software that are bugging me, after looking around the forum a bit more it would seem that I have a World Wide English rom, need to know if I can upgrade to a euro rom of a later version. I'll keep updating this thread I think with my impressions as I go along, probably from the device most of the time to get used to the keyboard. Good times software can be fixed hardware can't.

There is an app called nodata which allows you to turn on and off GPRS data connection, You can simply toggle data connection off when you don't want to use your PAYG credit, no matter what apps are requesting for data.
BTW, there are tweaks to speed up your Touch HD device including Opera.

[Q] keep gps on

Anyone know how I can keep GPS running all the time? Specifically, when I use google maps to show me traffic status, if I switch away from it to open another app, the gps stops. Then when I bring it back, the gps has to sync up again, which takes 20 sec usually. I'd like to just keep it going whenever I am in the car. If you use google naviation for directions, the GPS is kept on, but not for just maps.

this is the most annoying thing about the tablet I don't like. ESP when it takes about 10 mins to get a fix again. I'm about to do the fix that makes its go faster. But still. I want a GPS that stays on when I want it to. ESP since I have a car charger and battery life isn't a prob......
Anyone have an answer for this?

willyampz said:
Anyone know how I can keep GPS running all the time? Specifically, when I use google maps to show me traffic status, if I switch away from it to open another app, the gps stops. Then when I bring it back, the gps has to sync up again, which takes 20 sec usually. I'd like to just keep it going whenever I am in the car. If you use google naviation for directions, the GPS is kept on, but not for just maps.
Click to expand...
Click to collapse
I take it your A500 is tethered or your using a 3g dongle when your out and about if your getting google realtime Traffic...Make sure you have -use wireless networks- (Location determined by wi-fi) in Settings checked and you should get traffic even with -use gps satellites- turned off. Just a theory and haven't tested it in the field, but here at home with gps turned off it seems to work fine and shows realtime traffic.

i don't use 3g. I have a bunch of offline map apps.

use something like co-pilot or one of the other top gps apps.. google maps never has worked correctly on my tablet.. the above problem as well as many other ones.. And it sucks battey life. guess if you have it plugged in thats not a issue..
You can also d/load gps status.. and in the settings there is something that will KEEP YOUR GPS on at all times.. .
GOOD LUCK

erica_renee-
Have you tried ActiveTraffic in co-pilot....I see a free 14 day trial available in the app, but never tried it.

co-pilot active traffic Lou. Kentucky is great
YES .. i tried it for the 14 day trial.. But I ONLY Have a a500. and i do not keep it tethered to my phone all the time.. IT does work well in my city.On The co-pilot forms its hit and miss from what i have read.So if you are tethered or 501 activated 3g.. I Would give it a try. the Interface is awesome.Co-Pilot has the most up to date maps of any gps i have used.. even better then the QCOM . That we have in our company vans..
So i say give it a try or ask in the c0- pilot user forum on ALKs web site..

[Q] Audio shutters while 3G enabled

Hi, everyone
I have one I9500 and it was working perfectly until the beginning of Aug.
The audio has been shuttered all the time, no matter playing music or video. (it pauses for about 0.1 second and continue, very annoying)...
I found it's fine if Mobile Network is disabled, at least for my 3-hours test today it's OK. As soon as the Mobile network is enabled, it begins..
My phone was bought in China, and I'm still using it in China.
I'm on latest CHN firmware MG1. It happens no matter it's rooted or not...
I've tried factory reset and emergency recovery in Kies and it's still not working.
Anyone has any ideas about this?
Thanks!

Update:
I found the audio is shuttering if WIFI is connected...
So in this case, connecting to either WIFI or Mobile network will make the audio(both music player and video player) shutters...

GPS and cellular being killed off together

Anyone else seen this behavior?
This has happened twice to me now... These are the symptoms:
1. Very poor signal area, phone going in and out of coverage (in someone's house for several hours)
2. Using WiFi, also going in and out of coverage (may not be relevant)
3. Return to good 4G coverage
4. 4G seems to work fine
5. After typically 10 mins or so travelling (or after some event?) the cellular & GPS connections drop completely.
6. Reboot required, then all works fine again
I'm on EE network in the UK
I have noticed all this through my navigation app (TomTom). At step 5 above the status bar still shows the 'GPS active' icon on the top right list of icons and no bars (neither 4G/3G nor 2G) signal strength under these circumstances.
So something is killing off BOTH GPS and cellular radios? Apps (even broken ones) can't do this, can they? So this will be a bug in the OS, right?
Stock/unrooted LPD23.118-10

I know this is an old post but it is still relevant to any X play users.
Has anyone found a fix for this.
My X play will run for weeks using GPS and various mapping apps without problem and then it will say looking for a GPS fix and the Cell signal has also gone even though I know that a very good signal is available (my work phone is with me on the same network).
The quick fix is to go into the drop down menu on the home screen and turn the location icon OFF then ON, the phone then gets a fix within a seconds (even when travelling) and then in 10 to 20 seconds the 4G icon comes up, first with ! then once it has made a proper connection (IP address I assume) it goes away and all is well.
I guess that the radio driver for the GPS and Cellular side must be interconnected someway or there is a memory issue which is cleared by turning location OFF the ON.
Any thoughts folks ??
The X play is running standard MOTO 6.0.1 android.
Thanks