Location of a cell phone userContents:
One of the key challenges of network-based techniques is the requirement to work closely with the service provider, as it entails the installation of hardware and software within the operator's infrastructure. Frequently the compulsion associated with a legislative framework, such as Enhanced , is required before a service provider will deploy a solution. The location of a mobile phone can be determined using client software installed on the handset. In addition, if the handset is also equipped with GPS then significantly more precise location information can be then sent from the handset to the carrier.
Another approach is to use a fingerprinting-based technique,    where the "signature" of the home and neighboring cells signal strengths at different points in the area of interest is recorded by war-driving and matched in real-time to determine the handset location. This is usually performed independent from the carrier. The key disadvantage of handset-based techniques, from service provider's point of view, is the necessity of installing software on the handset.
It requires the active cooperation of the mobile subscriber as well as software that must be able to handle the different operating systems of the handsets.
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One proposed work-around is the installation of embedded hardware or software on the handset by the manufacturers, e. This avenue has not made significant headway, due to the difficulty of convincing different manufacturers to cooperate on a common mechanism and to address the cost issue. Another difficulty would be to address the issue of foreign handsets that are roaming in the network. The type of information obtained via the SIM can differ from that which is available from the handset. For example, it may not be possible to obtain any raw measurements from the handset directly, yet still obtain measurements via the SIM.
How to track someone with their cell phone - Quora
Crowdsourced Wi-Fi data can also be used to identify a handset's location. Hybrid positioning systems use a combination of network-based and handset-based technologies for location determination. Both types of data are thus used by the telephone to make the location more accurate i. Alternatively tracking with both systems can also occur by having the phone attain its GPS-location directly from the satellites , and then having the information sent via the network to the person that is trying to locate the telephone.
In order to route calls to a phone, the cell towers listen for a signal sent from the phone and negotiate which tower is best able to communicate with the phone. As the phone changes location, the antenna towers monitor the signal, and the phone is "roamed" to an adjacent tower as appropriate. By comparing the relative signal strength from multiple antenna towers, a general location of a phone can be roughly determined. Other means make use of the antenna pattern, which supports angular determination and phase discrimination. Newer phones may also allow the tracking of the phone even when turned on and not active in a telephone call.
This results from the roaming procedures that perform hand-over of the phone from one base station to another. A phone's location can be uploaded to a common website where one's friends and family can view one's last reported position. Newer phones may have built-in GPS receivers which could be used in a similar fashion, but with much higher accuracy.
This is controversial, because data on a common website means people who are not "friends and family" may be able to view the information. Locating or positioning touches upon delicate privacy issues, since it enables someone to check where a person is without the person's consent. In Malte Spitz held a TED talk  on the issue of mobile phone privacy in which he showcased his own stored data that he received from Deutsche Telekom after suing the company.
Part 2: How to hack a phone using number to track its location
He described the data, which consists of 35, lines of data collected during the span of Germany 's data retention at the time, saying, "This is six months of my life [ Spitz concluded that technology consumers are the key to challenging privacy norms in today's society who "have to fight for self determination in the digital age. China has proposed using this technology to track commuting patterns of Beijing city residents. In Europe most countries have a constitutional guarantee on the secrecy of correspondence , and location data obtained from mobile phone networks is usually given the same protection as the communication itself.
In the United States , there is a limited constitutional guarantee on the privacy of telecommunications through the Fourth Amendment. United States that the government violates the Fourth Amendment by accessing historical records containing the physical locations of cellphones without a search warrant. From Wikipedia, the free encyclopedia. This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. My phone was stolen a few hours ago D: It was brand new and the best phone I have ever had No, Google Latitude will work across the globe wherever there are cell towers cellular service.
Give it a shot and let us know how it works for you! Hey RYAN,you gat a nice posts here. But I have this question. Is this whole thing dependent on ones geographical area? I'm commenting from nigeria. So is it really possible here? Try mr tracker from mrxsystem. I've been using it for work purposes for atleast 3 months now. Thanks for a great article, I just wanted to let you know that Microsoft has a similar technology, that lets you find your laptop anywhere on Microsoft's Virtual Earth, its called Microsoft Location Finder.
Note that this does not need any mobile connectivity, just the Wi-Fi capabilty of your laptop, and it will post the location of your laptop. I did a detailed article on this, if you are interested please have a look at: For some reason I left out the URL in the previous post, here it is again indiawebsearch. Ryan morning no I have no comment. I have another problem. I am trying to find the location of where my son is at this stage. We have some difficulties in the past and he left our town without any notification a year ago.
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It start working on his mother and I have no answer for her. AlI have is a cell number. How can I find his location just to show to her okay he is there. Yes - if you go to the Google page listed in this article, there's an online map associated with your account.
You can set your current location manually using that map so that even if your mobile doesn't update Google Latitude, you still can. I started playing with this and a few friends as soon as I heard of it. Several family members traveling over the holidays to a single location, everyone can see how close everyone else is. Long-distance truck-driving companies could use it as a low-cost free alternative to using GPS for locating where there trucks are currently at.
This is essentially just like a Twitter update which all your friends viewing you on the map can see except it's in graphical format. Hi Shreela, great question. Yes, if you look on the Google Latitude page, just below the login there's an option to add the widget to iGoogle. I don't believe you need to enter your phone number to do that? Just log in with your Google ID and it'll get added, then you can manually enter your location on that page.
Good luck, and let me know if you run into any brick walls I've never considered the non-phone approach, but both you and Mike bring up some excellent non-PDA uses. Can't tell you how many times my wife has scolded me to "put that thing away! Anyway, yes, you need to be able to run Google Maps on your phone, and most standard cellphones either can't, or they don't have the data plan to support it, as you point out.
On the flip side, you CAN add the widget to iGoogle and manually set wherever you are or are going to be so that friends and family know what's up. You make a good point though - Google really should consider allowing people to somehow text there location to Latitude after signing up.. Does Google have a blog we can make these suggestions to?
I've got some issues with Google Calendar as well. I want to join, but don't want to put in my phone number. I just want to manually enter my nearest major intersection so people would know which part of town I'm from. But I can't see a way to join without providing my phone number. I think it is quite cool that you can track your location even without the GPS functionality.
But my question behind this service was, is a data plan necessary? I'd love if it weren't, but since "accessing sites from your phone" kept getting mentioned I'm thinking a data plan is a necessity for this service. Which is a shame because I'm all about the texting but can't justify the expense of a data plan since the only place I don't have an Internet connection is when I'm driving.
And everyone who loves me doesn't WANT me to have a connection at those times: The drawback to Google Latitude is that it doesn't run in the background. If you switch to another application, your position updates will stop. I think this is totally scary. What ever happened to privacy?
When will they have a i-poop app that tweets my color and level of stink of my poop? Seriously, too much info. Yeah - it resolution depends a great deal on where the nearest cell towers are. My friend and I tested it this weekend to see how accurate it was. He has Verizon and there's a cell tower right in town - it had his location correct right down to town level not building - it can't do that. In the end though, it shows you more or less where your friends are if they "share out" their position, that is. Privacy IS a setting within Google Latitude, and you can even turn off your location if you like so you essentially go "invisible" to either all friends, or select ones, as outlined in the article.
Thanks for the great feedback everyone. Latitude uses GPS if it is available on your phone, which makes the location reporting far more accurate. In addition to being able to turn of sharing of your position, you can also custom set your position that is shared. Resolution is vague, you can't even be sure if someone is really at that street or the next, or the next one.
And I'm talking about a gps-enabled device, not just triangulation which less accuracy than gps.
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The update freq is even worse, about once a minute here. The tech is great, but I guess they limit its power due to privacy concerns, like someone attaching a cell phone into your car to track you down What if I am interviewing at a competitor while my boss is looking for me, what if I am buy a present for my wife at a particular high end store.
For that matter what if I am at the stripclub and don't want my girlfriend to find out, or a sporting event when I was suppose to be with a "sick friend". And using tools like this can be an infringement. Beleive me, as soon as someone gets located doing something they were not suppose to and it resulted in trouble divorce, being fired, etc the lawsuits are going to fly.
Can I zoom in to see which room of a building a person is in or is the resolution at the "cell tower" range which could be from a few thousand feet to miles. AJ, I'm not sure I understand what you're saying. This article IS about triangulating a cell phone's actual position using Google Latitude? You can see from the screen shot above where I show how to set up a friend and then there are even sample screenshots of Latitude triangulating his position as well as mine. If you're talking about a way to do that without someone's permission, that's a whole different ballgame.
I doubt Google or anyone would ever enable that ability due to privacy issues. I would be interested in hearing what other people think about that concept though if Google would remove that step and you could track anyone by cell number alone Just think of the ramifications of that I beg to differ. A friend of mine was able to trace me on his Blackberry with just a phone number and I never accepted anything. I did not accept an invite like what is required on the My Location feature on the Latitude app.
I recall vaguely Latitude's introduction and the update, but where is that app that just tells you where a friend is on the iPhone with just a phone number. He was able to locate me and I was like how did he do that? You make it seem like you can triangulate a cell phone's actual position or something using Google Latitude.
Is it possible to track a cell phone location by number only?
My couaen sister was gone from my home because fighting with her please help. Informative, however, does it really work? Can it track the exact latitude and longitude location it is at at that current time?
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