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Does Anyone knows how to get the Internal GPS to work with Windows Live Map?
Thanks,
gpsone isn't in standalone mode so it cannot be accessed by applications
There are rumors that it'll be activated in the EVDO Rev A update this fall.
so wait... mogul has a gps?
it's built into the qualcomm cpu like the kaiser. it's assumed the gps shares the cell antenna since there's no gps antenna on board and the documentation states this is possible. the kaiser has the 7200 the mogul has the 7500. kaiser w/ test rom allows for the gpsone to run in standalone mode and the kaiser seems to have an antenna so it works.
as of right now it's assumed gps will work when unlocked but it's still a gray area; there may or may not be an antenna
The FCC application describes the Mogul as
"a CDMA850/CDMA1900 (1XEVDO / 1XRTT / IS-95A/B) Pocket PC Phone with wireless LAN, bluetooth, and GPS functions."
https://gullfoss2.fcc.gov/oetcf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&calledFromFrame=N&application_id=391628&fcc_id='NM8TITA100'
the listing of gps functionality is ambiguous; all cellphones are required to have agps for e911 emergency in the usa as mandated by the fcc. gpsone is in quite a few htc devices but only a handful have antennas attached
how accurate is agps? versus standalone gps?
someone on PPCgeeks reported that Live Search was working on Sprint Moguls using tower triangulation. I'm not sure if this is different than AGPS, but it sure it neat to have location based services, even if accurate only to a few hundred yards...
Dishe said:
someone on PPCgeeks reported that Live Search was working on Sprint Moguls using tower triangulation. I'm not sure if this is different than AGPS, but it sure it neat to have location based services, even if accurate only to a few hundred yards...
Click to expand...
Click to collapse
A-GPS = tower assisted GPS.
http://en.wikipedia.org/wiki/Assisted_GPS
i had my telenav rep confirm when the rev a patch is released that the GPS will be unlocked as well.
samspoon said:
the listing of gps functionality is ambiguous; all cellphones are required to have agps for e911 emergency in the usa as mandated by the fcc. gpsone is in quite a few htc devices but only a handful have antennas attached
Click to expand...
Click to collapse
All cell phones certainly DO NOT have aGPS. Please do not confuse aGPS for tower triangulation.
aGPS is assisted GPS meaning it uses the cell phone towers to assist an existing GPS chipset.
So if the Mogul has aGPS, then it has to have GPS by definition.
he is right though. FCC does now require that ALL new phones in the united states have GPS (to an extent) for at least e911.
TC1 said:
A-GPS = tower assisted GPS.
http://en.wikipedia.org/wiki/Assisted_GPS
Click to expand...
Click to collapse
Yes, I'm aware of the definition.
The way AGPS is described is similar to how articles are describing the technology Sprint and MS are using... and since every Sprint phone is mandated by the FCC to have 911 AGPS capabilities, I'm wondering if this is the same thing.
samspoon said:
as of right now it's assumed gps will work when unlocked but it's still a gray area; there may or may not be an antenna
Click to expand...
Click to collapse
The Kaiser has a big "GPS" on the back where you can hook up an external antenna. No such luck with the Mogul.
But I still can hope that _some_ kind of GPS would come with Rev.A. Sucky GPS is better than no GPS...
I think you guys know as well as I do, that even if the phone has a functional gps and a antenna sprint will still never unlock it. Its not that they dont want to, they are lazy. There have been lots of firmware "updates" I have been waiting for on other sprint phones that they were going to release and never did.
As for external GPS recievers what do you guys think of this one?
http://www.semsons.com/wo44chawaauo.html
That supports A-GPS you think that would work?
Madzilla said:
I think you guys know as well as I do, that even if the phone has a functional gps and a antenna sprint will still never unlock it. Its not that they dont want to, they are lazy. There have been lots of firmware "updates" I have been waiting for on other sprint phones that they were going to release and never did.
As for external GPS recievers what do you guys think of this one?
http://www.semsons.com/wo44chawaauo.html
That supports A-GPS you think that would work?
Click to expand...
Click to collapse
if you are going to go with an external BT reciever any should work, since its not using the phones GPS at all
If you want an external, get a Holux M-1200. Tiny, cheap, and works amazing. I love mine!
ok, so any external gps will work? some of them say A-GPS compatible and others dont. Does that matter at all?
I was told by my friend who works at Sprint today that they will be unlocking the GPS in Quarter 4 of this year.
She said that originally they did not unlock it as they were having issues with the hardware and software, but are prepping to unlock it soon to us.
Sorry if this has been put out there already, but thought I would share what I heard. hopeful anyway, huh?
Is this guy a reliable source of info? Or is he a rep who hears stuff through the grapevine like the rest of us? (I've heard some crazy misunderstood info coming from people who "work for sprint")
Over at ppcgeeks.com someone dissasembled their Mogul and the general conclusion was that the GPS had been disabled via hardware, although they admit they're not sure.
The rumor also was that it would be available to us with the Rev A update due to come out soon. Although no one knew for sure where this info came from. Could be someone made it up, wishful thinking.
So, yes, this rumor has been around, but we're still waiting for someone to actually confirm it.
Honestly, I'll beleive it when I see it.
Dishe said:
Is this guy a reliable source of info? Or is he a rep who hears stuff through the grapevine like the rest of us? (I've heard some crazy misunderstood info coming from people who "work for sprint")
Over at ppcgeeks.com someone dissasembled their Mogul and the general conclusion was that the GPS had been disabled via hardware, although they admit they're not sure.
The rumor also was that it would be available to us with the Rev A update due to come out soon. Although no one knew for sure where this info came from. Could be someone made it up, wishful thinking.
So, yes, this rumor has been around, but we're still waiting for someone to actually confirm it.
Honestly, I'll beleive it when I see it.
Click to expand...
Click to collapse
This person is a software engineer at Sprint, and she said that the reason they didn't have it unlocked in the beginning was due to a hardware/software conflict, but that it will be unlocked in an upcoming ROM update. She said that Sprint had announced it somewhere internally.
I have a few contacts in sprint, I'll try verifying this tommorow
From what I understand, the Mogul has A-GPS. This is the same GPS that allows them to find you if you make an emergency call. It does not work off sattelites but rather from cell towers.
On the bright side, it shares the same Qualcomm 7200 chip that the Kaiser will use.
Some maintain that the Kaiser has built in GPS, others claim it has no satellite antenna and requires an external antenna.
Sprint originally advertised the phone as having GPS. Now that has been removed from their advertisement.
It will be ineresting to see what will happen with the evdo rev. a upgrade later this year.
rambo6 said:
From what I understand, the Mogul has A-GPS. This is the same GPS that allows them to find you if you make an emergency call. It does not work off sattelites but rather from cell towers.
Click to expand...
Click to collapse
Exactly. The bottom line from what I understand is that the Mogul does not have the built-in hardware to do full GPS that will work with independent mapping software (Google, etc).
[RANT]This is getting a bit old - people claiming that A-GPS does not work off satellites.
Please do some research before posting this type of mis-information.
A-GPS is Assisted GPS. It uses information from the cellular network to ASSIST the GPS for faster TTFF.
And the Mogul uses a different chipset than the Kaiser. One uses the 7200, while the other 7500.[/RANT]
Ok... so now that you ranted... is it your opinion that the Mogul will or will not be able to do full GPS?
And actually.... A-GPS doesn't directly work off of the satellites. Since it takes a long time for a cell phone device to download the positioning data from the GPS satellites, what the A-GPS system does is let the A-GPS servers at the cell towers download and accumulate the data, the cell phones then talk to the A-GPS servers to get the data (which happens within seconds).
When A-GPS is enabled, would it have the possibility to work with Mobile GMaps ? Or is the Java still restricted?
Don't we have A-GPS already enabled? Isn't that the little GPS icon in the phone dialer? I know I have the option to turn it off/on in the phone settings just like all other agps handsets.
If something is going to be "enabled" with a new update, that means it will most likely be real standalone GPS.
TC1, no one knows that for sure. It was speculated.
I AM POSTING THIS FOR THE LAST TIME
The Mogul has the Qualcomm msm7500 as its cpu. BUILT INTO the cpu is the gpsone chipset. This is able to achieve AGPS as well as GPS. It runs in 4 different modes. To have the serial link to work with applications the chipset must be run in standalone mode.
It is on the damn phone as it is part of the cpu! It is currently not in standalone mode so there is no way to access the chip. The only true thing up in the air is whether or not the phone can obtain a satellite lock in standalone mode.
Dishe said:
Don't we have A-GPS already enabled? Isn't that the little GPS icon in the phone dialer? I know I have the option to turn it off/on in the phone settings just like all other agps handsets.
If something is going to be "enabled" with a new update, that means it will most likely be real standalone GPS.
TC1, no one knows that for sure. It was speculated.
Click to expand...
Click to collapse
Correct, like almost every modern cell phone, A-GPS is enabled. There is no debate there.
I agree with you regarding speculation on the "stand-alone GPS" aspect. I've never seen definitive info from HTC that says yes or no on this subject. If there is real info regarding this, some links would be nice.
HTC's site says:
It is widely rumored that this phone has a GPS chip that has been disabled. Will there be a hack or workaround to enable GPS capabilities?
Answer: Not likely, it is AGPS which requires a connected call to get data location.
Click to expand...
Click to collapse
Sonix6 said:
HTC's site says:
Click to expand...
Click to collapse
thats from their wiki site, so its not necessarily true
/me keeps fingers crossed
This would be good news. I'll be keeping my fingers crossed for this.
gpsone (in most all msm chipsets including kaiser and mogul):
How gpsOne Works:
The gpsOne technology functions in four different modes of operation. Chosen automatically or specified by software, the
four modes are Standalone GPS, Mobile Station (MS)-based, MS-assisted and MS-assisted/Hybrid. In the A-GPS modes,
gpsOne technology utilizes assistance data from a location server in the wireless network in combination with A-GPS circuitry
and software in the wireless device.
Note: The common term used by standards bodies for the handset/terminal device in CDMA2000 is "Mobile Station" (MS) and in WCDMA (UMTS)/GPRS/GSM/HSDPA/EDGE is
“User Equipment” (UE). For simplicity in this document, references to the handset/terminal will be "MS," but this use implies both MS and UE.
Standalone GPS: The GPS receiver calculates a position without using any assistance data and without a connection to
the wireless network.
MS-Based: The GPS receiver calculates the position using assistance data from a location server to increase cold-start
sensitivity and reduce the start time for an initial position calculation.
MS-Assisted: The GPS receiver uses assistance data from a location server to make measurements related to its distance
from the GPS satellites, then sends this information to the location server where the position is calculated. This mode also
increases cold start sensitivity and reduces the start time for an initial position calculation.
MS-Assisted/Hybrid: Wireless network information is added to GPS measurements as part of the position calculation by
the location server, integrating the relative strengths of GPS information and available wireless network location information
for increased positioning reliability in difficult GPS environments.
In assisted operation, a gpsOne-enabled handset receives
a small “assistance data” message from a network location
server using standardized protocols
• The handset then reads information from GPS satellites to
measure its distance from all the satellites it can see (called
“ranging” information).
• The handset then uses this ranging information to create a
position “fix,” or sends the ranging information back to the
server where it can be combined with network information
to produce an even better fix.
• gpsOne also operates in Standalone mode, without requiring
any assistance data from the network
straight from the gpsOne document.
interesting indeed... question is, will Sprint release firmware that allows it to run in standalone mode?
I suppose the truth is, even if it doesn't, someone can figure out how to enable it with some sort of hack eventually since its just software controlled according to this document.
has anyone played with this reg key?
\HKCU\ControlPanel\PhoneExtendFunction\CDMA\GPSOneSetting = 0
Edit: the value does not contain a space between "GPSOne" and "Setting", but vbulletin modifies my text when i post....
I don't know if this info helps or not... I spoke to a HTC TS and they told me the 6800 has GPS but is sprint decision to enable it or not. He also told me that it can be unlock but sprint is the only one with the code and he can not provide me with that info.
New poster old reader, may be found some info.
I found Many info that may me can help somebodies about the msm 7500 (gpsOne technologie)...It is hard to know what to believe 'cause half/half
people say that this is impossible, and the other half say that gonna happen soon. I think that we should make our own idea by our own knowledge . I found many topic on many forum (htc, gpsunderground,here...ask me if interressed) One Qualcomm offical site i've got pdf about msm chips, and gpsOne tech... (Snap track location service for gpsOne may be a good start point to invest)
Interessing link's:
FCC test repport for tita100 (titan) (That include plane mode settings):
https://gullfoss2.fcc.gov/oetcf/eas...lledFromFrame=N&application_id=391628&fcc_id=
Here it seem to be codes:
http://www.wlt.net.cn/index0/FD-800/pdf/CNI FD-800 gpsOne Menual ver1 0_0117.pdf
Similar:
http://www.wlt.net.cn/index0/FD-800/pdf/FD-800_Application_Guide ver1 0(1).pdf
And found other about SDK from Qualcomm API's seem to be aivalaible to third party dev. Also seem to be hard to be registred as dev. But hope...
And if internal budies have code it is just a time question before a solution.
So i wish that i'm not making more mistake or false info...if tell me.
And for gps freak who will tell that different anthenna needed, diffrent frequencies for GPS...see the end of the document FD-800 manual (2nd link).
So thank for this helpfull forum, forgive my poor english expression, and lack of programming knoledge , my is disignig pcb, and electrical pannels, but not to programme them's( not enough )...
I'm trying to figure out if anyone else is having this problem.
Got my G1 on the 21st. been playing with a few things and the laundry list of UI annoyances is getting longer by the minute.
but overall quite impressed. Here's a weird one.
Google Maps (on G1 of course) cannot locate my phone - at all - with wifi OFF and gps OFF.
I am in a 3G zone. Google Maps on my HTC Touch worked fine (EDGE only of course)
So I looked around and found a reference somewhere stating that cellid geolocation does NOT work in 3G areas.
Is this true of all 3G phones?? If so it's very strange - because I like to keep 3G on but when I am indoors or for that matter when I want to save battery I turn off GPS and wifi.
So why the hell would they not be able to geolocate by cellid?
I tested it on my G1 and it's true - as soon as you turn off 3G (Settings->Wireless Controls->Mobile Networks) then cellid Geolocation works fine.
Just thought people might want to know and I'm curious if anyone else has the same problem.
Nick
I heard from a network engineer that all of the 3G hardware was rapid deployed and configured to minimum specs which happened to NOT include enabling aGPS. It was either an oversight or a timesaver. This will be fixed, it is a known issue. All the techs are still in the middle of the initial deployment and rapid expansion before the end of the quarter.
I HOPE to god Tmo can stop the ATT commercials that brag about the fastest network in the US after this quarter.
that only kind of makes sense...
I mean sure - it's all new etc...
but the point is that the network is not doing the a bit of the aGPS - google is.
Google does a lookup of the cellid in its database - and presumably does not have any information on the new cellids.....YET.
I just find that weird - I am in the metropolitan LA area and you would think with all the hoopla of this launch and the financial might of google they could have gotten it together by now - I mean these towers didn't go up yesterday...
Nick
syrusfrost said:
I heard from a network engineer that all of the 3G hardware was rapid deployed and configured to minimum specs which happened to NOT include enabling aGPS. It was either an oversight or a timesaver. This will be fixed, it is a known issue. All the techs are still in the middle of the initial deployment and rapid expansion before the end of the quarter.
I HOPE to god Tmo can stop the ATT commercials that brag about the fastest network in the US after this quarter.
Click to expand...
Click to collapse
nickybee said:
Google does a lookup of the cellid in its database - and presumably does not have any information on the new cellids.....YET.
Click to expand...
Click to collapse
erm, is that how aGPS works on the G1? That's stupid. I was under the impression that it worked like normal aGPS... I.E. -
Phone: Where am I?
Tower: You are @ 33.12345/32.12345 accuracy 2000 meters
Tower: GPS sattelites G51, T85, R14 are 3 strongest
Phone: Fed GPS data to GPS radio, warm start for 10 sec lock as opposed to over a minute for a cold start lock.
And I am also under the impression that alot of the 3G hardware wasn't configured with the appropriate data (position with est of accuracy based on closest towers and affinity and the 3 strongest GPS signals for that area). The issue was noticed and any new hardware should be fine. Problems will be resolved as the expansion portion of the project begins and all of the areas are revisited.
Where did you get your info nickybee?
aad4321 said:
agps works fine with me on 3G....
also under settings...security and location.... if you look under "use wireless networks" it says with that turned on, it uses wifi and cell towers for location. I would imagine with this off, it will not geolocate through towers...
Click to expand...
Click to collapse
yes that was turned on on my G1 of course.
and no it still doesn't work.
nick
hey syrus - I didn't mean aGPS - I was just referring to the (a) part of the GPS.
i.e. there is no Phone saying "Where am I"
it goes
GMaps application: "What's my cell id?"
Phone: "It's ABC1"
GMaps application: "Hey Google dbase - where's cellid ABC1"
Google: "ABC1 is at 33.12345/32.12345 accuracy 2000 meters"
As to where I get my information from it's out of my ass
I accept that I could be totally wrong - but I assume that google does not go to the carriers for cellid information - it just drives around with the mobile vans and captures GPS data for Wifi and cellid simultaneously. Since the towers are quite new - their data has not been captured yet
Nick
syrusfrost said:
erm, is that how aGPS works on the G1? That's stupid. I was under the impression that it worked like normal aGPS... I.E. -
Phone: Where am I?
Tower: You are @ 33.12345/32.12345 accuracy 2000 meters
Tower: GPS sattelites G51, T85, R14 are 3 strongest
Phone: Fed GPS data to GPS radio, warm start for 10 sec lock as opposed to over a minute for a cold start lock.
And I am also under the impression that alot of the 3G hardware wasn't configured with the appropriate data (position with est of accuracy based on closest towers and affinity and the 3 strongest GPS signals for that area). The issue was noticed and any new hardware should be fine. Problems will be resolved as the expansion portion of the project begins and all of the areas are revisited.
Where did you get your info nickybee?
Click to expand...
Click to collapse
i never used the built in gpa, so far.
I use my bluetooth keychain gps. had it from my old excalibur.
works great
nickybee said:
GMaps application: "What's my cell id?"
Phone: "It's ABC1"
GMaps application: "Hey Google dbase - where's cellid ABC1"
Google: "ABC1 is at 33.12345/32.12345 accuracy 2000 meters"
Click to expand...
Click to collapse
Erm, you know now that I look at it Google is implementing SOMETHING new, I don't know how far they are taking it. Traditional aGPS has been around for a long time now, Google was never involved. I believe that at this point, with this version of Android things are still working the way they always have.
But! Did you notice the setting also indicates that the phone can find your location by wifi stations? I BET google receiving GPS data from users while they are connected to WIFI networks.
And then there's things like this below... ahh
http://arstechnica.com/news.ars/post/20071116-its-official-google-planning-700mhz-bid.html
Who knows, but I think as far as cell tower based aGPS is concerned android sticks with the basics. It's one data packet sent to the tower, and one back, rather than setting up a connection making a database query and receiving a reply.
They probably envisioned something like...
Phone: Where am I?
Tower: Shiii I dunno where you aaat?
Phone: Grrr, Google! I am connected to wifi access point "ATT" with SSID:12345678945 Where am I?
Google: Looks like syrusfrost was there last week, he was at 32.12345/33.12345 and he used GPS satellites.....
I really don't know how google is doing the Wifi geolocation, they may be parsing some of the wardriving databases out there for the major metro areas, hell when you drive with maps and wifi on you may be wardriving for google, wouldn't that be interesting...
Mikey1022 said:
i never used the built in gpa, so far.
I use my bluetooth keychain gps. had it from my old excalibur.
works great
Click to expand...
Click to collapse
Hows the battery life?
****************************************************************
"EDIT" UPDATE (7 oct. 2010)
Well you dont need to go actually much further then this first post!
Things got out of context over here, furthermore I decided to give
my external gps receiver a break and run some more tests with
the internal one of my SGS.
And the results I got were much better than any
other phone I tested before. Except the ones with a build-in SirfstarIII chipset.
If you have Gps issues,Just move on to this thread:
2nd edit (20 Oct, 2010): That thread was removed without any warning or explanation so I posted the videos in another thread:
http://forum.xda-developers.com/showthread.php?p=8903056#post8903056
END EDIT
RCinFLA said:
Like to share my experience as cellphone chipset designer and my dealing with various parties involved with GPS in phones.
Many of the issues are caused by business interests involved and there are quite a few parties plying to control location based services revenue stream.
SUPL, secure user plane protocol AGPS was created by network operators interest in mine, with the objective of putting them in the controlling position when it comes to extracting revenue from location based applications on their network.
Control plane AGPS is a general system where network operator independent entities can create a assist server along with possible services offering. They can encrypt their access to allow only subcribed (paying) users to access their service. The network operators has little control over this scheme.
With SUPL, in most cases, network operators outsource the location server function. Network operator hold location of their cell tower, as a total database, in close confidence. The network tower locations are also very dynamic over time. I believe the AGPS contractors don't get reliable and timely updates from the network operators.
Then there are third party business like 'Skyhook' which is trying to work around the network operator roadblocks by establishing a 'ponzi scheme' server database. If your phone has a good GPS location lock and detects a WiFi network, Skyhook's background app will have your phone send a message to their server reporting the SSID of the WiFi and its location. They then sell their server AGPS service to other companies, like Motorola, for inclusion in their phone software. Motorola may run into conflict with network operators. A network operator might refuse to buy a Motorola phone model with Skyhook installed on it. I noticed from the Captivate forum that the ATT version of Galaxy S has Skyhook capability.
Google is the 900 pound gorilla and is trying to wrestle control of location based services from network operators.
Finally there are the GPS chip manufacturers. Almost all of them have an AGPS server scheme of their own and try to promote it. The frontend processing (up to recovery of raw 50 bps satellite data) has unique hardware and firmware that are considered proprietary by the GPS chip manufacturer. In most cases a phone manufacturers like Samsung or Motorola are not allowed to have the software source code for this firmware or information on the actual interface protocol to the GPS chip. They are given a bundled binary file that the phone manufacturer software just dumps to the GPS chip at startup.
It is now up to the phone manufacturer to implement the GPS chip and antenna systems (along with WiFI, Bluetooth, Near Field Comm, and multi-band cellular) and provide software interfaces and drivers necessary to run the GPS function.
For size and cost reasons most recent GPS chips rely on the main application processor within the phone to actually do the GPS fix calculations. The software for this is provided by the GPS chip supplier but it must be coordinated with the particular applications processor chip used by the phone. It must share processing time slicing with the apps processor and work with operating system software resources such as RAM and ROM management running on the phone.
This is the first obsticle as most of the GPS chip suppliers have little expertise in the OS's that may be used (like Android or Symbian). The phone manufacturer usually has to provide help to create and debug the GPS driver software but the drivers are responsible/owned by the GPS chip supplier. There can be unique hardware/software interfaces that must be dealt with, like providing GPS TCXO calibration and cellular corrected frequency timebase to the GPS chip.
Then there is the OS's GPS interface. There can be translation software layers involved here. One such interface is based on GPS NMEA protocol but with additional hooks for things unique to phone operation like battery saver power strobing, and the complicated Secure User Plane or Control plane interface.
The AGPS system design landscape is litered with intellectual properties (patents) by many parties. Qualcomm is a dominate player here since their aquistion of SnapTrak company years ago. Royalties are paid to Qualcomm for every WCDMA phone sold, not only in AGPS area, but on basic CDMA patents used in a UMTS (Wideband CDMA) phones.
Now as to Samsung Galaxy S implementation of Broadcom GPS.
I think there is a lot of evidence that Samsung had early issues with the GPS antenna contact hardware. This has probably been corrected on recently manufactured phones.
I think the firmware supplied by Broadcom has the bandwidth of the correlators tighted down to provide greater sensitivity. This is great as long as there is a very good AGPS system to provide initial satellite ephemeris data. Without a good AGPS network providing satellite information the initial search and lock can take a very long time with narrow bandwidth frequency bins.
I have not seen evidence with my experience that my two Vibrants are receiving any reliable AGPS information from the T-Mobile network. They do seem to get rough Almanac satellite info from Google or other third party apps. These may be based on WiFi detection more then T-Mobile cell tower locations.
In LBStest I noticed that GPS Operational Mode has been set to 'Standalone'. I interpret this to mean AGPS is deactived. I don't see any difference when I switch to MS based assist, and clear the GPS saved memory to prevent it from prejudicing time to first fix lock test. Switching SUPL server to supl.google.com and port 7276 (with MS based operational setting) just seems to make my phone lockup for short periods of time.
Once phone does get full lock on satellites its performance is quite good. (my two Vibrant's were purchased in early Feb 2011). It rivals my Garmin SiRFstar III based GPS unit in locked on sensitivity while inside a building.
I think the AGPS system issues will get worked out over time.
The Qualcomm based CDMA2000 systems (like Verizon) will likely have better initial coordination on AGPS system operation. CDMA2000 also provides network timebase directly compatible with GPS.
Click to expand...
Click to collapse
*******************************************************************
All this nagging about GPS.....that it is not working in many devices and it's working in other many.....and of course I am talking about those ones who still would go for ONLINE gps navigation.....
In my humble opinion, what you guys should be asking yourselfs and the big corporations is, why nowadays, 99% of the smartphones(so not just sgs), even the most expensive ones are build with weak, less capable internal gps receivers, forcing users to go online(celular network /a-gps) or using external bluetooth gps receivers to get stable satellite fixes that means stable navigation.
Years ago, many of the first smartphones came with sirfstar chipsets or alike , so once again, why not now? That's the question that should not be ignored or forgotten.
A friend of mine, that would not dare to pay more than a 100 box for a phone, bought an ancient ETEN device on a sale for 40 box with that old windows mobile 5 and guess what...the internal gps get fast fixes just like any standalone gps device because it got the same sirfstarIII chipset
Why the heck, the expensive so called high-end smartphones of today are not build with better gps chipsets? Why A-gps? So we are forced to get data accounts?
And what happens when I want to navigate abroad? Roaming?
For data transfer and internet I use wifi; I have it at home and I find hotspots everywhere...I will save those extra 120 euros(or more) per year (data account costs)
And nobody will force me to get one(internet/data account); not even for gps navigation that I so much use..
I use gps navigation only offline, using a external bluetooth device on a daily basis and, many times abroad; it works like a charm on my SGS; and I am talking about serious GPS car navigation software like iGo, Sygic, Navigon etc. .
Don't even use Google maps or alike.
I cannot tell you how my sgs is doing on online navigation, I dont have a data account so I wont even try it.
But once Samsung get this online gps navigation thing fixed, you guys should concentrate your energy on the real issue:
The A-gps scam
And for all the corporations out there: Just deliver a device with a capable gps chipset and you will sell millions..
And for all the users out there: Just get a good compact external bluetooth gps receiver and stop nagging....
Thanks to 3rd party developers, the Android OS on my SGS can be "fooled" and I can connect any navigation software to my bluetooth gps receiver threw programs like Bluetooth Gps Mouse Unlimited and Gps Provider.
I do have to " allow mock locations" at settings first...
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¿Ein? You don need data to get GPS fix, A-GPS is only an aid to get faster fixes
I thtink you're a littel misinformed
LOL.. o boy.. the AGPS is to help say if your indoors so you can get a faster lock... the phone will work without it.
Ummm I can see why you would think what you think, but I do believe you are wrong.
Firstly: as far as I'm aware, the SGS has the same GPS chip as the latest TomTom standalone unit.
Secondly: I guess AGPS is a data feature, it uses the triangulation of cell towers and pulls information to assist a sat lock, but it is not really a different way of using GPS. Ultimately you still need to get a sat lock to use a GPS App.
So it may speed up this lock, but it won't replace it. It just means it'll take you a little longer to get a sat lock than without it.
So you have the choice use it or don;t use it, no-one is forcing you to use data.
Logicalstep
Oletros said:
¿Ein? You don need data to get GPS fix, A-GPS is only an aid to get faster fixes
I thtink you're a littel misinformed
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Click to collapse
Lol those online translators dont work that smoothly...
I don't need a data/internet account to use celular networks aid, that means a-gps.That mean going online via 3g or 2g...
But IF I don.t have a data/internet account added to my phone subscription, my phone costs will be much higher depending on my use....
You are missing the point anyway...
betoNL said:
Lol those online translators dont work that smoothly...
I don't need a data/internet account to use celular networks aid, that means a-gps.That mean going online via 3g or 2g...
But IF I don.t have a data/internet account added to my phone subscription, my phone costs will be much higher depending on my use....
You are missing the point anyway...
Click to expand...
Click to collapse
No, you're missing the point, you don't need any kind of data connection to use GPS, you can use it offline
Exactly...already the first line of Wikipedia says it: "Assisted GPS, generally abbreviated as A-GPS, is a system which can improve the startup performance of a GPS satellite-based positioning system."
There is, however, a related issue w/r/t A-GPS and a data account. Back on WinMo, I could download the ephemeris data to speed up the GPS fix for one week in advance (I think it was called QuickGPS or something on my HTC TouchHD, also had sth. like it on an old Eten). This allowed you to get a quick fix for said week, even without a data connection. Android, on the other hand, seems to download this data on the fly - meaning that if you don't have a data account you will experience a slow fix until your almanac has been filled "naturally" by the satellites you're seeing. I experienced that while on vacation this year without a roaming data contract - it took me a good 3-5 minutes to get the first fix and it was good from there on (well, as good as the SGS GPS gets ). I'd love to have some tool that does exactly what QuickGPS did, but I am not aware of anything like it.
TriC_101 said:
LOL.. o boy.. the AGPS is to help say if your indoors so you can get a faster lock... the phone will work without it.
Click to expand...
Click to collapse
I have always smile in my face when someone thinks he can get a lock indoors..
Yes in a cartoon box you can. Not in real building I'm afraid.
And for all those who think SGS's GPS is usable without A.
Try it.
You will see.
Dont post things you just caught on wikipedia.
xan said:
I have always smile in my face when someone thinks he can get a lock indoors..
Yes in a cartoon box you can. Not in real building I'm afraid.
And for all those who think SGS's GPS is usable without A.
Try it.
You will see.
Dont post things you just caught on wikipedia.
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Click to collapse
I can get a lock on 6-7 Sat no problem inside.... and so can lots of others.. don't know what your doing wrong but its not hard to get a lock inside.
Pics or it didnt happen
seems you all are little misinformed as to how the gps on android specifically sgs works. It is actually three systems at work here. Gps standalone without gprs and cell triangulation which gets lock within a minute same as standalone bluetooth units (they also take up to a minute from cold boot but because generally it is plugged in the car lighter and always on people think its blazing fast).then you have agps that downloads preloads data regarding satellite location in regards to your position via network instead of downloading same data directly from satellite thereby saving time. Both these can be used without checking network location in settings so to recap if your network location is unchecked you are still using agps as long as you have network connection (data connection that is).and samsungs system for agps being better than others cause it downloads data for while week as opposed to others downloading data everyone gps is turned on. Third level is network triangulation via cell towers that gets you that instant lock at the cost of accuracy useful mainly to let apps get your general location without having to engage real gps thereby saving power as well as give maps a chance to start calculating route while gps is still getting lock therefore appearing to operate faster.
Idan73 said:
Gps standalone without gprs and cell triangulation which gets lock within a minute same as standalone bluetooth units (they also take up to a minute from cold boot but because generally it is plugged in the car lighter and always on people think its blazing fast)
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Click to collapse
Standalone gps's got their batterys, and thus they start "warm".
Thing is, standalone SRIF3/4 gps gets a warm lock without any AGPS nor network triangulation within 5-10 seconds. SGS (and bunch of top-of-the pack devices) cant come even close to that.
the GPS on the SGS works fine offline
i don't even have data on when going on long road trips
you just need an offline GPS software with maps, like CoPilot or some other one you like
xan said:
Standalone gps's got their batterys, and thus they start "warm".
Thing is, standalone SRIF3/4 gps gets a warm lock without any AGPS nor network triangulation within 5-10 seconds. SGS (and bunch of top-of-the pack devices) cant come even close to that.
Click to expand...
Click to collapse
Sure they do. Sgs warm lock is 5 to 10 seconds as well. To test get the lock first then turn of data and network lock then start gps.restart of the phone same as restart of the standalone counts as a cold boot and takes about minute.
xan said:
Pics or it didnt happen
Click to expand...
Click to collapse
Here ya go.... I don't have to prove anything just look on youtube.. This is the phone on for just 10sec.. if I had waited it would get down to about 10 feet... this pic was taken in a room where I get the lowest signal. and I live in a Condo with 2 foot concrete walls.. I don't have a digital camera.. this was taken with my old Samsung dumb phone.. but it does prove you can get a lock inside no problem.. also if i'm in a house I can get 6-7 sats to lock in the condo 5 at the most in that room.
only 3 sats and maybe the walls are thin
Polarfuchs said:
only 3 sats and maybe the walls are thin
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Click to collapse
LOL Trust me the walls and not thin.. i'm on the 10th floor of a 25 floor Condo complex. I get alot more signal is a house.. Now my X10 can get about 7 Sats locked in the same room. and down to 5 feet. but the point was you can get a lock inside..
I'll try it.
I live in a 3 stories house at ground floor. The shutters are down and I'm 1 meter away from the windows.
After 3 Minutes I get 5 sats in view but none used.
I'll hang on.
Even after 10 Minutes I only have 5 satellites in View and zero in Use.
So no fix for me.
The numbers on top of the bars are from 15 to 25.
Logicalstep said:
Ummm I can see why you would think what you think, but I do believe you are wrong.
Firstly: as far as I'm aware, the SGS has the same GPS chip as the latest TomTom standalone unit.
Click to expand...
Click to collapse
Most of Tomtom devices got a SiRFstarIII™ GPS chipset
If the GS got such one the amount of GPS threads in this Forum would be reduced considerably
What is your awareness based on?
Oletros said:
No, you're missing the point, you don't need any kind of data connection to use GPS, you can use it offline
Click to expand...
Click to collapse
Idan73 said:
seems you all are little misinformed as to how the gps on android specifically sgs works. It is actually three systems at work here. Gps standalone without gprs and cell triangulation which gets lock within a minute same as standalone bluetooth units (they also take up to a minute from cold boot but because generally it is plugged in the car lighter and always on people think its blazing fast).then you have agps that downloads preloads data regarding satellite location in regards to your position via network instead of downloading same data directly from satellite thereby saving time. Both these can be used without checking network location in settings so to recap if your network location is unchecked you are still using agps as long as you have network connection (data connection that is).and samsungs system for agps being better than others cause it downloads data for while week as opposed to others downloading data everyone gps is turned on. Third level is network triangulation via cell towers that gets you that instant lock at the cost of accuracy useful mainly to let apps get your general location without having to engage real gps thereby saving power as well as give maps a chance to start calculating route while gps is still getting lock therefore appearing to operate faster.
Click to expand...
Click to collapse
LOL... Lets put things in perspective :
1) Wich car navigation software do you use
2) when you UNcheck wireless networks =a-gps(in location and security) and you CHECk "use GPS satellites = build-in gps receiver and then you go outside, you start your car navigation software in you gs( taking into consideration that you have the righ map installed) how long does it take to get a fix so you can start driving?
3) Do you know the difference between a cold and warm start? Why the heck some of you mention car lighters????
Please just answer me these 3 questions and meanwhile I will post some educative information
Does both Rogers and AT&T Samsung Focus have a built in GPS (don't need a data plan)? Ever site I've looked at for the specs gives conflicting information.
fastmhc said:
Does both Rogers and AT&T Samsung Focus have a built in GPS (don't need a data plan)? Ever site I've looked at for the specs gives conflicting information.
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Click to collapse
As I understand, my focus at&t has built in GPS that can be used with and without a data plan. It just depends what GPS software you are using for instance any GPS software that uses realtime updates or online maps requires data to be used while GPS is enabled...some 3rd party software use stored on device offline maps that would not require a data plan. As for specific programs that use online and offline maps I don't know. I use a data plan so I don't have to worry about that stuff.
This is my understanding so if anyone has better insight be my guest
All WP7 phones have a GPS, just like they all have a camera, three front buttons, a gravity sensor, proximity sensor, ambient light sensor and a compass. There are free GPS apps that are on the Marketplace that will allow you to see the GPS does work.
In time, there will be standalone gps navigation apps for sale on the Marketplace, it just takes a little patience.
I just don't want assisted GPS (A-GPS). I want an integrated GPS chip. All phones dont' have a built in GPS (I think older iphones). I currently have a Samsung i8910 and it has an integrated GPS. I bought Garmin software to use the GPS maps and when I am overseas I just need to buy the maps for that region to access the maps. If you have A-GPS you have to buy a data plan from that country's carrier and using their network, you access the internet (google maps) to get your maps. I hope that is clear??
You totally misunderstood what A-GPS is.
Sent from my SAMSUNG-SGH-I897 using XDA App
Maybe I don't? this is a quote for the wiki page for GPS navigation for phones
" Some phones with GPS capability work by assisted GPS (A-GPS) only, and do not function when out of range of their carrier's cell towers. "
WP7's have A-GPS. They use both radio towers and satellites to obtain a fix on your location.
So yes, once a proper mapping application is released, you can travel to other countries without needing a data plan.
From wiki, sums it up pretty well i would say:
""Standalone" or "Autonomous" GPS operation use radio signals from satellites alone. A-GPS additionally uses network resources to locate and utilize the satellites faster as well as better in poor signal conditions."
Source:
http://en.wikipedia.org/wiki/Assisted_GPS
fastmhc said:
Maybe I don't? this is a quote for the wiki page for GPS navigation for phones
" Some phones with GPS capability work by assisted GPS (A-GPS) only, and do not function when out of range of their carrier's cell towers. "
Click to expand...
Click to collapse
Most of today's cell phone GPS chips can work either in standalone mode or Assited mode. A(ssited)-GPS helps to speed up your initial satellite lock by downloading satellite information from network. If you have no data connection, the chip will fall back to standalone mode. With A-GPS properly working, you can achive first lock within 10 seconds. Without it, you may have to wait for couple minutes for your first lock. After the initial lock these GPS chips work autonomously unless you use MS-Assited A-GPS mode. With the power of today's Smartphone, there is zero reason for using MS-Assisted mode unless you're using it in E911 situations.
It is ultimately the navigation software you choose determines whether or not you need cell data connection. Currently standalone navigation software on WP7 is quite limited or non-existent. If that is important to you, you may want to look for other Smartphones like iPhone or Android phones. Your old WM software won't work in WP7.