EP0956720A2 - Procede permettant de detecter des stations radiotelephoniques mobiles - Google Patents

Procede permettant de detecter des stations radiotelephoniques mobiles

Info

Publication number
EP0956720A2
EP0956720A2 EP98906867A EP98906867A EP0956720A2 EP 0956720 A2 EP0956720 A2 EP 0956720A2 EP 98906867 A EP98906867 A EP 98906867A EP 98906867 A EP98906867 A EP 98906867A EP 0956720 A2 EP0956720 A2 EP 0956720A2
Authority
EP
European Patent Office
Prior art keywords
mobile radio
plmn
radio stations
area
gsm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98906867A
Other languages
German (de)
English (en)
Inventor
Werner Zucker
Bernd Becker
Horst Neuser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAZ Mikroelektronik Anwendungszentrum Hamburg GmbH
Original Assignee
MAZ Mikroelektronik Anwendungszentrum Hamburg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAZ Mikroelektronik Anwendungszentrum Hamburg GmbH filed Critical MAZ Mikroelektronik Anwendungszentrum Hamburg GmbH
Publication of EP0956720A2 publication Critical patent/EP0956720A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/22—Countermeasures against jamming including jamming detection and monitoring
    • H04K3/224—Countermeasures against jamming including jamming detection and monitoring with countermeasures at transmission and/or reception of the jammed signal, e.g. stopping operation of transmitter or receiver, nulling or enhancing transmitted power in direction of or at frequency of jammer
    • H04K3/226—Selection of non-jammed channel for communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/84—Jamming or countermeasure characterized by its function related to preventing electromagnetic interference in petrol station, hospital, plane or cinema
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/16—Jamming or countermeasure used for a particular application for telephony

Definitions

  • the invention relates to a method for detecting mobile radio stations in a spatially delimited area, e.g. B. in an airplane or in a waiting room at a flight terminal.
  • MS mobile radio stations or cell phones
  • MS must not be used near petrol stations, fuel depots, chemical plants or during blasting work.
  • MS should not be switched on in hospitals, doctor's surgeries or medical laboratories.
  • the purpose of the present invention is:
  • 2nd Detect MS that are switched on in stand-by mode.
  • the second case is particularly critical, since MS that are in stand-by mode can switch to transmit mode at an undefined point in time without being triggered by the user. Sending cannot be predicted by paging (dialing the MS). With location update or login, an MS can send a burst or several bursts at intervals of a few seconds to a few hours.
  • the basic idea of the invention is to use suitable means to activate mobile radio devices which are in standby mode in a specific surrounding area in a justifiable short period of time for transmission, so that they can be detected or localized during transmission.
  • This activation for sending or stimulation can be triggered at a risk-free time or before entering a security area. This means that all MS that are in stand-by mode can be detected outside of danger zones or periods.
  • Paging means that a mobile station is called to provide information, i.e. to transmit a conversation, a fax, a short message etc.
  • the IMSI International Mobile Subscriber Identity, see rec. 04.08, sec. 10.5.4.1
  • the IMSI consists of a three-digit length code, a two-digit network code and a ten-digit identification code. Due to the variety of possible combinations, paging is ruled out as a systematic procedure for triggering MS, the IMSI of which is not known. Location updating
  • location updating means that the mobile station informs the associated network of a change in its location area.
  • a prerequisite for location updating is that the MS, by observing the radio field, has come to the conclusion that its location area has changed. She will then start a location updating procedure (rec. 04.08., Sec. 4.4.1) with the aim of communicating her identity and her current location to the network.
  • the advantage over paging for transmit activation is that the identity of the mobile station need not be known.
  • Significant advantages according to the present invention are based on a transmission activation by location updating, whereby basically two methods described below can be used in a targeted manner. What is common to the methods is that the MS is faked in a network so that the MS assumes that a GSM radio station with an FSM network connection is present and the MS must report to it.
  • the Onlv Server method (OS method or single server method) according to the present invention
  • a BCCH (broadcast channel, see rec. 05.01, 05.02 and 05.08 sec 7 and rec. 04.08 sec. 9.1.29 to 9.1.33) is sent on the undisturbed frequency, which has been set so that it has a previously unknown GSM network pretends. Due to the short distance to the MS, relatively low transmission powers of 1 mW to 100 mW are sufficient.
  • Activated mobile stations will then lose contact with the original GSM network within a short time. You will search the spectrum, ie the GSM channels, for valid BCCH signals. Within a short time, the undisturbed signal will be recognized and the MS will identify themselves to the "new" network so that they can be detected using a suitable detector.
  • the best server method (BS method or best server method) according to the present invention
  • a BCCH channel is also broadcast. This ensures that the generated GSM signal is the strongest receivable GSM signal in the detection area.
  • the required transmission power is also 1 mW to 100 mW. It must also be ensured that the parameters of the BCCH are matched to the parameters of the regular GSM network in a suitable manner.
  • the mobile stations recognize that a stronger station of the GSM network is available and will begin to transmit one after the other in order to inform this network of the intent to change their contents so that they can be determined by means of a suitable detector can be.
  • the broadcast parameters can be set permanently.
  • the probability of being able to discover all existing MS within a period of one to two minutes is high.
  • OS method offers higher detection security.
  • the best server method or method with the transmitter that can be optimally received is significantly more complex in terms of parameterization and operation, but does not require interference with the reception frequencies.
  • the choice of method is significantly influenced by the desired hardware architecture.
  • PLMN Public Land Mobile Network
  • Some mobile stations are "roamers" or users who switch between networks, i.e. they come from GSM networks outside a certain country, designated PLMN z.
  • base transceiver station hereinafter referred to as PTS
  • PTS base transceiver station
  • the transmitter is switched on and starts with the
  • MSI, M ⁇ 2, MS4 and MS5 lose contact with the GSM networks PLMN x and PLMN y. They are then in the same state as MS3, MS6 and MS7, i.e. They search for a GSM network that is valid for them in the entire GSM spectrum of the 124 channels.
  • step 3 MSI to MS7 find the BCCH, detect a new PLMN and change to the status "idle, not updated".
  • the mobile stations first check whether the simulated PLMN is marked as "forbidden PLMN" (or forbidden PLMN) on the chip card. However, since it is a fictitious network - this can be achieved by appropriate parameterization - it cannot be marked. They begin to request a channel from the new station on which they can carry out the location update procedure. It is not possible to predict the order in which the mobile stations will report.
  • forbidden PLMN or forbidden PLMN
  • step 4 It would theoretically be possible that the PLMN was marked as "forbidden PLMN" by deliberate manipulation of the chip card. This very unlikely case can be countered by occasionally changing the PLMN identifier.
  • the stimulation transmitter is switched on and searches the GSM spectrum for the available GSM networks. In this case, he finds two networks: PLMN x and PLMN y (there are usually two networks).
  • the transmitter for stimulation starts with the simulation of the first network, PLMN x and searches for the BTS with the strongest reception level of PLMN x, that is BTS x 1. step 3
  • the transmitter for stimulation takes the parameters "Location area information” (rec. 04.08, sec. 10.5.1.3 location area key), “Neighbor cells description” (rec. 04.08, sec. 10.5.2.13 neighboring cell description) and "from the PCCH information of the BTS.”
  • PLMN permitted "(rec. 04.08, sec. 10.5.2.15 approved PLMN).
  • the transmitter for stimulation calculates an adjacent cell BCCH frequency from an element of the "Neighbor cells description" and starts to transmit its own system information at this frequency with a sufficient level.
  • MS 1 and MS 2 will find the "new" station, set their receivers to this station (best server) and decode the system information.
  • MS3 is in a state in which all GSM channels are continuously searched for a GSM signal. So MS3 will also find the new station within a short time.
  • MS4 and MS5 do not recognize the transmitter for stimulation because they are logged into PLMN y.
  • MS6 is constantly looking for a GSM network.
  • the home PLMN is PLMN y and not PLMN x.
  • PLMN x and PLMN y are not maintained a roaming agreement, so that PLMN x is entered as "forbidden PLMN" on the chip card of MS3 with a very high probability.
  • MS3 will, unlike MS4 and MS5, recognize it and accept it as a GSM station for emergency calls (emergency calls are independent of roaming agreements), but do not carry out a location updating procedure, but continue to search for a GSM network approved for them (Rec. 03.22, sec. 3.4 ).
  • MS7 is looking for a GSM network and will find the HD. However, the home PLMN is in contrast to the MS6 and PLMN z, which is very likely to have a roaming agreement with PLMN x. MS 7 will accept the transmitter as a valid GSM station for stimulation (see note).
  • MSI, MS2, MS3 and MS7 detect a changed location area code and change to the status "idle, not updated". They begin to request a channel from the new station on which they can carry out the location update procedure. It is not possible to predict the order in which the mobile stations will report.
  • the transmitter repeats the setup for the other GSM network (PLMN y) analogously from step 2 for stimulation.
  • MS4-MS6 then behave like MSI - MS3.
  • the transmitter could also use a simplified method for stimulation and directly use the frequency of the PTS x 1, adopt its complete parameter set and only broadcast a changed location area code.
  • the system information of the "serving cell” is in the "idle, updated” state to save electricity, MS decodes only at longer intervals - GSM requests intervals of at most 30 seconds, but it is questionable whether this requirement is always met - on the other hand, it is not ensured that all mobile stations only change the location area code - the prerequisite for starting the location updating procedure - would notice at all.
  • Mobile phone implementations that are not fully GSM-compliant must also be expected here.
  • step 7 If PLMN z does not have a roaming agreement with PLMN x, it would very likely have at least one with PLMN y. MS7 would then only be included the second time through the procedure (see step 7).
  • GSM Global System for Mobile communications
  • a message can be transmitted to the mobile phone user via the traffic channel, e.g. a message that prompts him to take action.
  • transmitter stations are shown on the left, which are distributed in a known manner over the area of a state in order to alternate radio communication with the mobile radio stations or cell phones present there.
  • a spatially delimited space is indicated by a dash-dotted line. This could be a waiting room in front of an airport apron, but it could also be an aircraft itself.
  • the transmitter causes a cell phone present in the room to report, i.e. To send out radio signals.
  • a cell phone detector in the room that responds to the transmitted signals. This can be a detector that receives radio signals and evaluates them at least in the range of the commonly used frequencies for mobile radio stations.
  • an alarm device is shown schematically, so that a statement is made on the cell phone detector, namely whether one cell phone or more are in the spatially delimited area.
  • the alarm could be triggered in various ways, optically or acoustically, and it is also contemplated within the scope of the invention that the cell phone detector issues a command to the transmitter for stimulation, which in turn emits a signal that the detected cell phone automatically switches off.
  • the transmitter for stimulation will be permanently installed in a room that is shielded from the outside, whereas the mobile phone detector with an acoustic display is carried by the ground or flight personnel, for example, as a portable device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Public Health (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé permettant de détecter des stations radiotéléphoniques mobiles situées dans une zone déterminée, telle qu'une salle d'attente d'aéroport. Les stations radiotéléphoniques mobiles sont engagées à émettre des signaux radio pouvant être détectés par un détecteur, du fait que lesdites stations radiotéléphoniques mobiles sont stimulées par un émetteur.
EP98906867A 1997-01-31 1998-01-10 Procede permettant de detecter des stations radiotelephoniques mobiles Withdrawn EP0956720A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19703548 1997-01-31
DE19703548 1997-01-31
PCT/EP1998/000119 WO1998034421A2 (fr) 1997-01-31 1998-01-10 Procede permettant de detecter des stations radiotelephoniques mobiles

Publications (1)

Publication Number Publication Date
EP0956720A2 true EP0956720A2 (fr) 1999-11-17

Family

ID=7818893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98906867A Withdrawn EP0956720A2 (fr) 1997-01-31 1998-01-10 Procede permettant de detecter des stations radiotelephoniques mobiles

Country Status (3)

Country Link
EP (1) EP0956720A2 (fr)
AU (1) AU6292498A (fr)
WO (1) WO1998034421A2 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859264A1 (de) * 1998-12-22 2000-07-06 Bosch Gmbh Robert Verfahren zur Lokalisierung von mobilen Stationen und mobile Station
FR2790178B1 (fr) * 1999-02-22 2001-04-20 Raoul Girod Appareils pour filtrer les radiotelephones
ES2156552B1 (es) * 1999-05-14 2002-02-01 De Vicente Fernando G Isasi Localizador de terminales moviles activos en areas especificas
NO311279B1 (no) * 1999-10-22 2001-11-05 Radionor Comm As Fremgangsmåte og anordning for å bestemme posisjonen for en mobilkommunikasjonsenhet, samt fremgangsmåte og system for åpåvirke pris og tilgjengelighet for mobile kommunikasjonstjenester
SE522654C2 (sv) * 1999-12-10 2004-02-24 Ericsson Telefon Ab L M Förfarande och anordning för att förhindra användning av mobila telefoner
FR2804569B1 (fr) * 2000-01-27 2002-06-21 Jean Claude Saurat Systeme de detection de telephones cellulaires en mode reception ou veille operationnelle
FR2816473B1 (fr) * 2000-11-09 2003-03-07 France Telecom Procede de filtrage de communications de telephones mobiles, et dispositif associe
ITRM20010018A1 (it) * 2001-01-16 2002-07-16 Mesar S R L Procedimento per rivelare la presenza di telefoni cellulari attivi inuna zona protetta dal loro uso, e relativo apparato.
US20020111166A1 (en) * 2001-02-12 2002-08-15 Opuswave Network, Inc. Method and system for selecting a prefer red cell in a wireless communication system
US6993050B2 (en) 2001-03-14 2006-01-31 At&T Corp. Transmit and receive system for cable data service
EP1424861A1 (fr) * 2002-11-26 2004-06-02 Siemens Aktiengesellschaft Procédé et dispositif pour l'identification d'un utilisateur via un dispositif mobile
GB0424262D0 (en) * 2004-11-02 2004-12-01 Nokia Corp Controlling user equipments
CN100407863C (zh) * 2004-12-23 2008-07-30 华为技术有限公司 一种实现场景保密功能的方法
GB0500911D0 (en) * 2005-01-17 2005-02-23 Vodafone Ltd Controlling use of mobile devices
DE102005060029A1 (de) 2005-12-15 2007-06-21 Siemens Ag Verfahren und Vorrichtung zum netzseitigen Deaktivieren von Mobilfunkstationen
US7706784B2 (en) 2008-03-14 2010-04-27 Accells Technologies (2009), Ltd. Method and system for providing a product or service using a mobile communication device
WO2009113057A1 (fr) * 2008-03-14 2009-09-17 Avish Jacob Weiner Système et procédé pour fournir un produit ou un service avec un téléphone cellulaire
EP2320699A1 (fr) * 2009-11-10 2011-05-11 Alcatel Lucent Station de base à femtocellules et procédé pour déclencher le transfert d'une connexion radio d'un terminal utilisateur d'une station de base à macrocellules vers une station de base à femtocellules
AT510447B1 (de) * 2010-09-20 2012-04-15 Siemens Programm-Und Systementwicklung Gmbh & Co K Verfahren zum deaktivieren von mobilstationen
EP2451219B1 (fr) * 2010-11-05 2013-08-07 Alcatel Lucent Unité d'interrogation
DE102010062339A1 (de) * 2010-12-02 2012-06-06 Siemens Programm- Und Systementwicklung Gmbh & Co. Kg Verfahren zum Erkennen von aktiven Mobilstationen
US9098850B2 (en) 2011-05-17 2015-08-04 Ping Identity Corporation System and method for transaction security responsive to a signed authentication
KR20140058442A (ko) 2011-05-17 2014-05-14 엑셀스 테크놀로지스 (2009), 엘티디. 보안 거래 수행 시스템 및 방법
US8346672B1 (en) 2012-04-10 2013-01-01 Accells Technologies (2009), Ltd. System and method for secure transaction process via mobile device
US9886688B2 (en) 2011-08-31 2018-02-06 Ping Identity Corporation System and method for secure transaction process via mobile device
US9781105B2 (en) 2015-05-04 2017-10-03 Ping Identity Corporation Fallback identity authentication techniques
EP3264825B1 (fr) * 2016-06-28 2019-01-30 BlackBerry Limited Procédé et système permettant d'intercepter des appels d'urgence accidentels dans une installation de réparation de dispositifs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222247A (en) * 1990-10-01 1993-06-22 Motorola, Inc. Method for maximizing channel selection in a communication system
GB2253968B (en) * 1991-03-22 1995-02-15 Racal Vodafone Ltd Cellular telecommunications networks and methods
US5295180A (en) * 1992-04-08 1994-03-15 U S West Newvector Group, Inc. Cellular telephone zone system
FI102580B (fi) * 1996-06-17 1998-12-31 Nokia Mobile Phones Ltd Menetelmä matkaviestimen aiheuttamien häiriöiden eliminoimiseksi

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9834421A2 *

Also Published As

Publication number Publication date
WO1998034421A3 (fr) 1998-11-12
AU6292498A (en) 1998-08-25
WO1998034421A2 (fr) 1998-08-06

Similar Documents

Publication Publication Date Title
WO1998034421A2 (fr) Procede permettant de detecter des stations radiotelephoniques mobiles
DE69838321T2 (de) Firewall für zellulare kommunikation
DE69721579T2 (de) Verfahren und system zur beseitigung von durch mobile kommunikationsgeräte verursachte störungen
DE3781766T2 (de) Privates zellularsystem.
DE69734824T2 (de) Multi-mode kommunikationsnetz mit durch handgerät ausgeführter kanalauswahl
DE69332258T2 (de) Verfahren zum Betreiben eines Heimteilnehmerinformationsverwalters
DE602005003121T2 (de) Verfahren zur steuerung und analyse von kummunikationenen in einem telefonnetz
DE69508229T2 (de) Verfahren zur lokalisierung einer mobilstation eines zellularen funksystems und geräte dafür
DE69736705T2 (de) System und verfahren zur reduktion der von einem digitalen kommunikationsendgerät erzeugten interferenz
EP1013130B1 (fr) Procede pour proteger une zone locale limitee contre le rayonnement electromagnetique emis par des terminaux radiotelephoniques mobiles, et station radio correspondante
DE102010005582B4 (de) Verbesserung von Satellitenbasierten SAR-Diensten
DE60214767T2 (de) Zuverlässige dekodierung eines schnellen funkrufkanals
DE69927275T2 (de) Verfahren und vorrichtung zum gestalten von schnurlosen kommunikationsversuchen in einem system mit vielfachen modi
CN103200645B (zh) 一种gsm系统通信管制及特定用户通信保障系统及方法
CN101447802A (zh) 一种捕获移动用户终端的方法
EP1961255A1 (fr) Procede et dispositif pour la desactivation côte reseau de stations mobiles
DE10051129A1 (de) Verfahren zum vom Besitzer unbemerkten Aktivieren eines Mobiltelefons
DE602004008050T2 (de) Verfahren und vorrichtung zum schutz vor hochfrequenzstörungen
DE2736347A1 (de) System zum erkennen eines verkehrs- notfalls in einer rettungsleitstelle
CN104968026B (zh) 一种移动通信监管方法、装置及信号管理器
WO2005011318A1 (fr) Procede pour commander l'enregistrement d'une station mobile d'un systeme de radiocommunication dans une cellule radio d'une station de base virtuelle, et station de base virtuelle
AT510447B1 (de) Verfahren zum deaktivieren von mobilstationen
EP2461616B1 (fr) Procédé de reconnaissance de stations mobiles actives
EP0868033A2 (fr) Dispositif de détection de téléphones mobiles actifs
EP0856999A2 (fr) Procédé pour empêcher la transmission d'une station mobile

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19990726

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010801