Originally Posted by denasqu (Post 376707)

And the answer is... maybe. http://forum.ppcgeeks.com/images/icons/icon10.gif

Normally no, but sometimes yes. AGPS, by definition, connects to an Assistance Server (a big compter) via the cellular network. The Assistance Server is connected to the satellites and it uses the cell towers to roughly figure out where you are, then the Assistance Serve sends you info about the satellites so your GPS can lock in quicklier. :scratch:


Whether or not the data connection is required is up to the cell carrier and how they are utilizing the Assisstance Servers. It sounds like the Sprint guys are getting data connections automatically with AGPS. Verizon certainly is not (at least in S.Florida). However, having a data connection established with Verizon may help according to some. I don't notice any difference myself. Lord knows what the other carriers are doing.

I think the issue here is not whether these updating apps intefere with actual data connections but the issue is that they interfere with the transfer of "data" from the AGPS Assistance Servers... whether it be via the cellular network or the data network. Just my two cents.

Originally Posted by tichi (Post 376714)

it turns out, AGPS can use both to connect to an IP?
it makes things more clear then..

Originally Posted by denasqu (Post 376734)

Sure can. It's all digital dude!

The big difference is that one is "designed for" voice and the other for data. Voice channel transmissions are measured in tens of Kbps and Data channels are measured in Mbps. Another big difference is that Data channels are designed for error-correction and dormant periods.... Voice channels are not. If you think about it, it makes perfect sense. If that file your downloading has a packet error it would be a disaster and you want it fast. But who cares if my voice sounds a little different than it does in person or how quickly it is delivered to your earpiece so long as you can "hear me now"? \\:D/

So if my theory that Sprint is using the data channel for AGPS is correct and Verizon is not then it would certainly help explain why Sprint users are locking their GPS programs in a few seconds and others.. (Verizon) are taking tens of seconds or minutes.

BTW, I'm not expert either. This is just kinda' along the lines of what I do for a living and it's interesting to try and reverse engineer.

Originally Posted by denasqu (Post 376800)

Sounds like it's working like mine with Verizon. I think AGPS data is being transferred over the voice channel so there is not data connection activity indicated.

I get GPS connections usually within 30 seconds, always within a couple minutes.

It takes forever without the EnablePDEIP entry in the registry though.

Originally Posted by denasqu (Post 376800)

Sounds like it's working like mine with Verizon. I think AGPS data is being transferred over the voice channel so there is not data connection activity indicated.

I get GPS connections usually within 30 seconds, always within a couple minutes.

It takes forever without the EnablePDEIP entry in the registry though.

Originally Posted by tichi (Post 376819)

EnablePDEIPfromNV setting is PRESENT in current Bell ROM..

and, it probably uses it, too this PDE IP..

BTW, why then does one need another server related to AGPS
(in the /HKLM/Software/HTC/SUPL AGPS branch?)

Originally Posted by denasqu (Post 376884)

I'm not sure what you mean "another server". The server ip in the SUPL branch should be THE AGPS server. In my case, Verizon appears to be others using Alcatel but I'm sure there are plenty of others.

Originally Posted by tichi (Post 377099)

"ServerIP"="195.207.101.126"

Originally Posted by denasqu (Post 377136)

Which is Alcatel, just like Verizon.

What is QPST?

Sooooo... you are using the Radio to get some info "fromNV" for AGPS. A wild guess that "NV" is Navstar.

Originally Posted by tichi (Post 377164)

the weird thing is that I switched phone`s radio OF
(airplane mode),
and STILL GPS works as fast AS if it uses AGPS..

how the hell can AGPS communicate with the server if the radio is OFF???

Originally Posted by denasqu (Post 377175)

Caching your home satellites? Maybe if you left it off for a couple of days or moved a hundred miles away it wouldn't be so quick.

Originally Posted by denasqu (Post 377248)

Sound like we've got it all figured out. :mrgreen: :scratch:

Originally Posted by Exil3d (Post 377311)

Hey... just decided to do one more test. This morning before I attempted to use GPS I set my email to retrieve in 5 minutes. So after resetting the phone and booting up the phone did not acquire a auto data connection. So i waited 5 minutes to have the phone connect and receive my email. It did and I had no mail. So then I launched GPS viewer and again... I noticed that my data arrows where not blinking and I waited 4 minutes and still no data activity and no gps lock. So I stopped gps viewer and hit my END butoon and that is set to terminate data connection when help for 3 seconds. SO my data gets terminated and then I launch gpsviewer and within 8 seconds my phone automatically got a data connection and saw the arrows blink and "poof" I had a gps lock. Again..... it looks like there is a conflict with a auto data connection. very strange. My friend has a Mogul and his a-gps is flawless with the last official rom Sprint gave out. He gets a lock all the time within 10 seconds with Pushmail activated.

Originally Posted by Exil3d (Post 377311)

Hey... just decided to do one more test. This morning before I attempted to use GPS I set my email to retrieve in 5 minutes. So after resetting the phone and booting up the phone did not acquire a auto data connection. So i waited 5 minutes to have the phone connect and receive my email. It did and I had no mail. So then I launched GPS viewer and again... I noticed that my data arrows where not blinking and I waited 4 minutes and still no data activity and no gps lock. So I stopped gps viewer and hit my END butoon and that is set to terminate data connection when help for 3 seconds. SO my data gets terminated and then I launch gpsviewer and within 8 seconds my phone automatically got a data connection and saw the arrows blink and "poof" I had a gps lock. Again..... it looks like there is a conflict with a auto data connection. very strange. My friend has a Mogul and his a-gps is flawless with the last official rom Sprint gave out. He gets a lock all the time within 10 seconds with Pushmail activated.

Originally Posted by Exil3d (Post 382805)

Well, with the official new rom. Tethering was disabled. So you have to do a few reg chances to make tethering possible. One of the changes is to change "phone as moden" to "Sprint PCS". So disabling "phone a modem" is a must and you dont loose nothing. Search on the Vouge section here in ppcgeeks and theres a thread about how to get tethering back.Im on my phone now so i cant really dig it up for you. When I get home I will link you unless someone does it first.

Originally Posted by Exil3d (Post 381490)

Bingo!!!!!!!!!

Good job hellomcfly! That did the trick. Pushmail is currently on and receiving emails as the come. And I am getting 5 second locks! Incredible! Ok..... I checked all those reg entries and the 1st three were the same since the tethering hack required those 3 to change. But the last reg entry...

"[HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{7C4B7A3 8-5FF7-4bc1-80F6-5DA7870BB1AA}\Connections\Phone as Modem]
"Enabled"=dword:00000000"


was the gps bug. Disabling this makes "phone as moden" off. In which was having a issue in calling the agps server when a actual " Data Sprint Pcs" was already active.
Again good job hellomcfly!

Originally Posted by mshnayde (Post 413044)

Need some help.
Well I tried posting questions on the WDM ROM thread, but didn't get any response.
I just switched from a Mogul to the Touch.
I am with SPrint.
Unlocked the phone.
Flashed Bell release ROM to update the radio. - didn't let customizations run.
Than Flashed WDM's latest ROM.
Everything seems to work well, except for the fact the neither Live Search, nor Google Maps will lock onto a sattelite.
I really need some hints or instructions on how to fix this.
I have already tried reinstalling the cab posted in the first post, all without success. I am probably not doing something correctly.
Please, I am open to any suggestions.

Originally Posted by Exil3d (Post 381490)

Bingo!!!!!!!!!

Good job hellomcfly! That did the trick. Pushmail is currently on and receiving emails as the come. And I am getting 5 second locks! Incredible! Ok..... I checked all those reg entries and the 1st three were the same since the tethering hack required those 3 to change. But the last reg entry...

"[HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{7C4B7A3 8-5FF7-4bc1-80F6-5DA7870BB1AA}\Connections\Phone as Modem]
"Enabled"=dword:00000000"


was the gps bug. Disabling this makes "phone as moden" off. In which was having a issue in calling the agps server when a actual " Data Sprint Pcs" was already active.
Again good job hellomcfly!

Originally Posted by shaggylive (Post 415089)

yes, the zero's =off

Originally Posted by hellomcfly (Post 379300)

Ok so I set changed my shared internet connection settings from "Phone as Modem" to "Sprint PCS"

By doing the following 4 things (more detail here):

[HKEY_CURRENT_USER\Software\Microsoft\InternetShari ng]
"LastCellConnection"="Sprint PCS"

[HKEY_LOCAL_MACHINE\Comm\InternetSharing\Settings]
"ForceCellConnection"="Sprint PCS"

[HKEY_LOCAL_MACHINE\Comm\InternetSharing]
"Extension"=""

[HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{7C4B7A3 8-5FF7-4bc1-80F6-5DA7870BB1AA}\Connections\Phone as Modem]
"Enabled"=dword:00000000


Tests:

1. Set hotmail to sync 15 mins, reboot, wait 15 mins get mail, open google maps get lock in 5 seconds. (works)
2. Set hotmail to sync auto, reboot, send my self email, open google maps, 5 seconds. (works)