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Text of the page (random words):
tracking is a process for identifying the location of a mobile phone whether stationary or moving localization may be effected by a number of technologies such as the multilateration of radio signals between several cell towers of the network and the phone or by simply using gps tracking to locate a mobile phone using multilateration of mobile radio signals the phone must emit at least the idle signal to contact nearby antenna towers and does not require an active call the global system for mobile communications gsm is based on the phone s signal strength to nearby antenna masts 1 mobile positioning may be used for location based services that disclose the actual coordinates of a mobile phone telecommunication companies use this to approximate the location of a mobile phone and thereby also its user 2 technology edit the location of a mobile phone can be determined using several complementary technologies modern phones typically use a hybrid positioning system that combines these methods to provide the fastest and most accurate location possible 3 handset based positioning edit this is the most common method where the device itself calculates its own position gnss gps the phone uses a built in receiver to calculate its precise location from signals broadcast by satellite navigation constellations like gps glonass or galileo this is the most accurate method when outdoors wi fi positioning in areas with poor satellite reception such as indoors or in dense urban canyons the phone can scan for nearby wi fi networks it then calculates its position by cross referencing the unique identifiers bssids of these networks against a global crowdsourced database of their locations 4 fingerprinting this technique records the signature of home and neighboring cell signal strengths at different points in an area the device can then match its current signal signature to this database to determine its location 5 network based positioning edit this method relies on the cellular network infrastructure to determine the phone s location the advantage is that it can be implemented non intrusively by the service provider without any special software on the handset 6 cell id the least accurate method which uses the known location of the single cell tower the phone is communicating with its precision is low especially in rural areas where cell towers are far apart multilateration more advanced systems use the signal strength and timing from multiple adjacent cell towers to triangulate the phone s position this is more accurate in urban areas where cell tower density is high 7 data transmission in applications edit for any location based service to function the position data calculated by the phone whether from gps wi fi or the network must be transmitted to a server 8 the phone s built in cellular modem sends this telemetry data over the mobile network e g 4g 5g 9 this phone as a sensor model is the foundation for many modern on demand services and is a key part of fleet digitalization applications for food delivery courier services and ride hailing like uber or lyft rely on the phone s transmitted location data to function the phone itself acts as the gps tracking unit for the service s fleet management platform allowing it to dispatch the nearest driver provide customers with a real time track and trace map and calculate billing the reliability of these services depends on this constant data connection for example the shutdown of older 3g networks required many commercial services to ensure their devices were 4g or 5g capable to maintain connectivity 10 interception edit law enforcement and intelligence agencies conduct cellphone surveillance by intercepting and collecting data including location data with devices and methods including imsi catchers such as the stingray phone tracker 11 operational purpose edit in order to route calls to a phone 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 but 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 12 consumer applications edit a phone s location can be shared with friends and family posted to a public website recorded locally or shared with other users of a smartphone app the inclusion of gps receivers on smartphones has made geographical apps nearly ubiquitous on these devices specific applications include geo fence specific locations of interest such as no fly zones gps navigation and maps locator apps like find my friends dating apps like grindr recording a journey for example to show a hiking accomplishment for quantified self purposes such as fitness tracking gps drawing in january 2019 the location of her iphone as determined by her sister helped boston police find kidnapping victim olivia ambrose 13 privacy edit locating or positioning touches upon delicate privacy issues since it enables someone to check where a person is without the person s consent 14 strict ethics and security measures are strongly recommended for services that employ positioning in 2012 malte spitz held a ted talk 15 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 he described the data which consists of 35 830 lines of data collected during the span of germany s data retention at the time saying this is six months of my life you can see where i am when i sleep at night what i m doing he partnered up with zeit online and made his information publicly available in an interactive map which allows users to watch his entire movements during that time in fast forward 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 16 17 china edit the chinese government has proposed using this technology to track commuting patterns of beijing city residents 18 aggregate presence of mobile phone users could be tracked in a privacy preserving fashion 19 this location data was used to locate protesters during protests in beijing in 2022 20 europe edit 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 21 22 23 24 united states edit in the united states there is a limited constitutional guarantee on the privacy of telecommunications through the fourth amendment 25 26 27 28 29 the use of location data is further limited by statutory 30 administrative 31 and case law 25 32 police access of seven days of a citizen s location data is unquestionably enough to be a fourth amendment search requiring both probable cause and a warrant 25 33 in june 2018 the united states supreme court ruled in carpenter v united states that the government violates the fourth amendment by accessing historical records containing the physical locations of cellphones without a search warrant 34 it expanded this ruling on june 29 2026 in the case chatrie v united states to cover geofence data as well see also edit carpenter v united states cellphone surveillance chatrie v united states geofence warrant geolocation glonass russian global navigation satellite system google latitude gps phone indoor positioning information privacy imei number local positioning system mass surveillance mobile dating mobile device forensics mobile identification number mobile security positioning technology phone surveillance radio resource location services protocol real time locating system riley v california satellite navigation secure telephone triggerfish surveillance united states v jones 2012 united states v karo vehicle tracking system references edit tracking a suspect by any mobile phone tracking sim and handset bbc news 2005 08 03 retrieved 2010 01 02 location based services for mobiles technologies and standards shu wang jungwon min and byung k yi ieee international conference on communication icc 2008 beijing china zandbergen paul a 2009 accuracy of iphone locations a comparison of assisted gps wifi and cellular positioning pdf archived pdf from the original on 12 march 2026 retrieved 14 june 2026 q a on location data apple com apple retrieved 2013 03 08 ibrahim m youssef m 2012 01 01 cellsense an accurate energy efficient gsm positioning system ieee transactions on vehicular technology 61 1 286 296 arxiv 1110 3425 doi 10 1109 tvt 2011 2173771 issn 0018 9545 s2cid 14790516 mobile positioning using wireless networks laitinen h lahteenmaki j nordstrom t 2001 database correlation method for gsm location ieee vts 53rd vehicular technology conference spring 2001 proceedings cat no 01ch37202 vol 4 rhodes greece ieee pp 2504 2508 doi 10 1109 vetecs 2001 944052 isbn 9780780367289 s2cid 195858053 what is a location based service and how does it work search networking retrieved 2026 06 14 what is geolocation explaining how geolocation data works search mobile computing retrieved 2026 06 14 will the 3g sunset leave supply chains in the dark forbes august 3 2023 retrieved october 7 2025 slobogin christopher brayne sarah 2023 surveillance technologies and constitutional law annual review of criminology 6 219 240 doi 10 1146 annurev criminol 030421 035102 issn 2572 4568 pmc 10704392 pmid 38074421 declan mccullagh and anne broache 6 december 2008 roving bug in cell phones used by fbi to eavesdrop on syndicate the chicago syndicate blog a common smartphone feature helped find missing woman the boston globe bostonglobe com waxman seth brief for technology companies as amici curiae in support of neither party pdf scotusblog supreme court of the united states retrieved 23 june 2018 your phone company is watching tedglobal 2012 ted com june 2012 retrieved 26 january 2016 fitzgerald britney 25 july 2012 malte spitz s ted talk takes on mobile phone privacy debate video huffington post retrieved 26 january 2016 biermann kai 10 march 2011 betrayed by our own data die zeit zeit retrieved 26 january 2016 cecilia kang march 3 2011 china plans to track cellphone users sparking human rights concerns the washington post archived from the original on june 24 2011 d quercia ilias leontiadis liam mcnamara cecilia mascolo jon crowcroft 2011 spotme if you can randomized responses for location obfuscation on mobile phones ieee icdcs xiong nectar gan yong 2022 12 02 chinese police are using cellphone data to track down protesters cnn retrieved 2022 12 03 cite web cs1 maint multiple names authors list link spyropoulos philippos k 2009 constitutional law in greece fortsakis théodore netherlands kluwer law international isbn 978 90 411 2878 2 oclc 383848443 campbell john 2020 the origins and development of the right to privacy comparative privacy and defamation edward elgar publishing pp 9 23 doi 10 4337 9781788970594 00008 isbn 978 1 78897 059 4 s2cid 225586361 retrieved 2020 10 24 chapter x fundamental rights and duties of citizens article 128 1936 constitution of the ussr the inviolability of the homes of citizens and privacy of correspondence are protected by law roxana maria roba the legal protection of the secrecy of correspondence curentul juridic archived 2009 number 1 tîrgu mureş romania 1 2 3 carpenter v united states 583 u s supreme court of the united states 22 june 2018 the government s acquisition of carpenter s cell site records was a fourth amendment search riley v california 573 u s supreme court of the united states 25 june 2014 required a warrant to search mobile telecommunications devices united states v jones 565 u s 400 supreme court of the united states 23 january 2012 limited use of gps devices such as in a cell phone to track movements katz v united states 389 u s 347 supreme court of the united states 18 december 18 1967 a that an enclosed telephone booth is an area where like a home and unlike a field a person has a constitutionally protected reasonable expectation of privacy b that electronic as well as physical intrusion into a place that is in this sense private may constitute a violation of the fourth amendment and c that an invasion of a constitutionally protected area by federal authorities is as the court has long held presumptively unreasonable in the absence of a search warrant ex parte jackson 96 u s 727 supreme court of the united states 1878 letters and sealed packages subject to letter postage in the mail can be opened and examined only under like warrant issued upon similar oath or affirmation particularly describing the thing to be seized as is required when papers are subjected to search in one s own household the constitutional guaranty of the right of the people to be secure in their papers against unreasonable searches and seizures extends to their papers thus closed against inspection wherever they may be stored communications act 18 u s code 2703 d required disclosure of customer communications or records requirements for court order a court order for disclosure under subsection b or c may be issued by any court that is a court of competent jurisdiction and shall issue only if the governmental entity offers specific and articulable facts showing that there are reasonable grounds to believe that the contents of a wire or electronic communication or the records or other information sought are relevant and material to an ongoing criminal investigation in the case of a state governmental authority such a court order shall not issue if prohibited by the law of such state a court issuing an order pursuant to this section on a motion made promptly by the service provider may quash or modify such order if the information or records requested are unusually voluminous in nature or compliance with such order otherwise would cause an undue burden on such provider 47 cfr subpart e privacy act regulations lii legal information institute united states v karo 468 u s 705 supreme court of the united states 3 july 1984 the use of a beeper to conduct surveillance on karo and his accomplices constituted an unlawful search and seizure in violation of the fourth amendment liptak adam 23 june 2018 warrant required for cellphone tracking data print the new york times vol clxii no 58 002 national ed pp a1 a16 retrieved 23 june 2018 we decline to grant the state unrestricted access to a wireless carrier s database of physical location information chief justice john g roberts jr wrote for the majority mapping a cellphone s location over the cours...