EP3080869B1 - Störverfahren und vorrichtung mit begrenztem linearem effekt - Google Patents

Störverfahren und vorrichtung mit begrenztem linearem effekt Download PDF

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Publication number
EP3080869B1
EP3080869B1 EP14816179.7A EP14816179A EP3080869B1 EP 3080869 B1 EP3080869 B1 EP 3080869B1 EP 14816179 A EP14816179 A EP 14816179A EP 3080869 B1 EP3080869 B1 EP 3080869B1
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Prior art keywords
jamming
linear
signal
log
cable
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English (en)
French (fr)
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EP3080869A1 (de
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François Delaveau
Christophe THIZON
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Thales SA
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Thales SA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/203—Leaky coaxial lines
    • 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
    • H04K3/43—Jamming having variable characteristics characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/32—Jamming or countermeasure characterized by the infrastructure components including a particular configuration of antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/34—Jamming or countermeasure characterized by the infrastructure components involving multiple cooperating jammers

Definitions

  • the invention relates to a method and a scrambling device using an overhead line and a scrambling device, the assembly being adapted to generate and broadcast disturbing or jamming signals in a given closed or semi-open space without impact on the operation. elements arranged outside this space.
  • radio communication devices such as mobile phones
  • One of the problems today is to eradicate all unauthorized radiocommunications in a closed enclosure by controlling the containment of the signal used to prevent such communications by avoiding any inconvenience to outside users not concerned by this prohibition of radiocommunications.
  • the patent US 6,195,529 discloses a method and a device for blocking the transmission of mobile phones by transmitting interfering signals in the frequency range of the mobile radio.
  • the patent application WO 98 56192 discloses a method for regulating cellular communications.
  • the characteristics of the forbidden radiocommunication devices and the characteristics of the radiation regime of the linear cable are previously known or measured in order to parameterize and adjust the frequency bands of the interference signal, the nature of the emitted interference signals and the levels of interference. output of the effector whose signal is injected into the linear cable via the coupler.
  • At least one of the effectors is, for example, adapted to the generation and transmission of scrambling signals, and is a broadband generic scrambler.
  • the effector is, for example, adapted to the generation and emission of jamming signals and is composed of a set of dedicated jammers, whose output signals are transmitted to filtering and amplification and rectification modules, then injected into a coupler, the output of said coupler being injected into the linear cable.
  • the effector is, for example, adapted to the generation and transmission of jamming signals and comprises modules frequency-selective filtering apparatus adapted to excise the scrambling signal to release one or more carriers usable by a controlled radiocommunication over-network.
  • the device may comprise means adapted to duplex the signal at the output of an effector and a device for injecting said signal into two different linear cables.
  • the device may also include a first effector disposed at a first end of the linear cable and a second effector disposed at a second end of the linear cable for injecting a jamming signal J1, J2 at each end of the linear cable.
  • the device may include a system of baffles adapted to locally optimize the confinement, baffles for which one can use grilles for passage of electric cables with inverted mounting, mesh meshes and various geometries.
  • the figure 1 schematically a first embodiment of the device according to the invention comprising an aerial linear geometry 1, associated with a device for generating disturbing waves or effector 2, via a connector 3.
  • the mobile phone 4 which is not authorized to receive communications or data is found on this figure in the vicinity and in the efficiency zone of the linear overhead.
  • Such an arrangement makes it possible to produce a broadband interference signal or a multi-band interference signal, of frequency bands, carriers and adequate levels in given areas where mobile phones 4 that are sought to prevent operation can be found.
  • the scrambling signal is injected into the linear overhead via the connector 3 with a level adjusted on each band and on each carrier in these bands to scramble and prevent on these carriers all data exchange between the mobile terminal and prohibited communications networks throughout the area covered by linear overhead.
  • the resulting jamming signal J, considered at the forbidden terminal has, for each of the carriers potentially usable by the forbidden terminal, a power P J defined as a function of the power P S of the signals listened to by the forbidden terminal, in such a way that the P S / P J ratio is less than the operating threshold Threshold threshold S of the mobile phone prohibited on each usable carrier (this operating threshold Threshold S being known to those skilled in the art for each radiocommunication network to be prohibited by consultation standards of these networks).
  • the aerial linear geometry 1 has for example radiation characteristics which, combined with suitable effectors as described above, can disrupt the operation of mobile phone present at the point M (r, l) by precisely controlling the flow the radiated power P J (r, l) as a function of the linear distance l and the radial distance r which define the positions M (, l) of one or more illicit devices (ie the positions of the mobile telephones 4 in the area covered by linear overhead).
  • the linear distance l is defined, for example, with respect to the connector 3 of the linear element.
  • the radial distance r is determined by the measurement of the perpendicular to the linear element which meets the point M (r, l), for example.
  • the dimensions of the linear air element, its diameter ⁇ , its length L and its orientation with respect to the geometry of the zone to be covered, as well as the distribution of the orifices Oi allowing the diffusion of the interference signals J and the positioning of possible baffles to facilitate the confinement are chosen in particular according to the radiocommunication devices whose operation it is desired to eradicate, and the geometry of the zone in which it is desired to eradicate the operation of illicit radiocommunications.
  • the orientation of the linear elements is carried out for example tangentially to these privileged directions.
  • aerials are arranged for example tangentially to the edges of this enclosure.
  • the spectral density N j, f (r, l) of the interference signal injected into the linear overhead via the connector 3 must therefore verify for the band B i, f of each carrier f: 10. log 10 NOT j , f r , l . B i , f - VS r 0 - P ' . l - l 0 - 10. log 10 r / r 0 ⁇ 10. log 10 P S , j , f - 10. log 10 Threshold S , j , f + ⁇ again: 10. log 10 NOT j , f r , l . B i , f ⁇ 10.
  • figure 1 shows radio communication signals S 8 , S 9 , S 10 , S 11 from the external transmitters 8, 9, 10, 11 in bands B 8 , B 9 , B 10 , B 11 , the transmitters being able to enter. communication with the illicit terminal 4 whose radiocommunications are to be eradicated.
  • log 10 r / r 0 + ⁇ 10 10. log 10 NOT J 9 r , l . B J 9 ⁇ 10. log 10 P S 9 - 10. log 10 Threshold S 9 + VS r 0 + P ' . l - l 0 + 10. log 10 r / r 0 + ⁇ 9 10. log 10 NOT J 8 r , l . B J 8 ⁇ 10. log 10 P S 8 - 10. log 10 Threshold S 8 + VS r 0 + P ' . l - l 0 + 10.
  • the effector device 2 for generating and transmitting the jamming signals is composed, for example, of a generic broadband jammer or of a set of jammers each dedicated to one of the radio communication networks prohibited in the zone. covered, amplitude-adjusted where appropriate, and whose outputs are coupled according to methods well known to those skilled in the art before injection into the linear air so as to treat several bands B j and multiple carriers f j simultaneously. Its characteristics are, for example, chosen according to the illicit devices likely to be in a supervised area. This allows somehow to build an effector "à la carte" specifically adapted to the processed radio configuration and to networks whose communications must be locally neutralized.
  • radio-cell jammers For example, it is possible to use dedicated second, third and fourth generation radio-cell jammers, GPS (Global Positioning System) jammers operating the ISM Industrial Band (Industrial, Scientific and Medical). ) (Bluetooth short radio type, or following WiFi wireless protocol), etc. (see figure 1 , 5 and 5 '). These dedicated jammers have low power per subband ( ⁇ 1 W), low cost (odg ⁇ 100 $ unit x a few units per device).
  • frequency excision a method known to those skilled in the art, of one or more carriers in the scrambling signal by a filtering adapted at the level of the amplification and rectification stages (6, 6 '), so as to allow the use of these carriers for radio controlled by the system operator, emergency calls, authorized on-network radiocommunications, etc.
  • the figure 2 is a detail of an example of a linear cable comprising a plurality of orifices arranged to allow the passage of jamming waves in the area to be monitored.
  • the linear air comprises several orifices Oi distributed along the element according to the desired application, the orifices are separated by sections 21 which do not allow the passage of jamming signals.
  • FIG 3a schematizes an alternative embodiment of the invention in a corridor-type preferred direction enclosure, in which a single element 301 has been installed at a ceiling and two effectors 305, 306 at opposite ends of the element, as described above.
  • the openings of the linear element allow the emission of interference signals J 1 , J 2 , the mobile phone 4 located in the corridor can decode the signals emitted by exteriors.
  • the parameters of interference, power levels, will be selected in particular according to the linear arrangement of these linear elements.
  • the figure 3b schematizes an alternative embodiment of the invention in an enclosure having no preferred direction, in which four linear elements 311, 312, 313, 314, of length L 2 , L 1 , L 2 , L 1 , respectively, have been installed. at the unrepresented walls of a piece of square geometry to be monitored and two effectors 315, 316 at the opposite ends of one of the diagonals of the part, as described above.
  • the effector 315 is connected according to an arrangement described in figure 1 at the two linear elements 311, 312, the effector 316 is in connection with the linear elements 313, 314.
  • the orifices of the four linear elements allow the emission of interference signals J 1 , J 2 , J 3 , J 4 , the mobile phone 4 located in the room can decode the signals emitted by outsiders.
  • the scrambling parameters, the power level, will be selected in particular according to the square arrangement of these linear elements.
  • the figure 4 represents another embodiment, it will be possible to connect a first effector 42a at a first end 41a of the linear aerial 41 via a first connector 43a and a second effector 42b at the second end 41b of the linear aerial 41 via a second connector 43b in order to inject a jamming signal J 1 , J 2 , at each end of the linear overhead 41.
  • the first and second effector have substantially identical characteristics (same levels). emission, same frequency bands), but their signals are decorrelated according to a technique known to those skilled in the art in order to avoid the phenomena of interference and standing waves during their propagation in the linear air.
  • baffles it is possible to add baffles to the device to locally optimize the confinement.
  • baffles for the nature, shape and size of the baffles, it is possible to use: grilles for the passage of electric cables (frequencies> 900 MHz) with inverted mounting, meshes and various geometries.
  • the example of an open rectangular grid aperture. ⁇ ( ⁇ / 2) 2 (At: wavelength of the interference emission) leads to a directivity of about 120 °, a Forward / Back ratio of the order of 10 to 15 dB). This facilitates the confinement of the jamming signal during installation in "semi-open environment", for example for windows prisons or window examination / conference rooms, or when there are diffraction problems (metal pipes, other).
  • Another variant is to add a metrology in phase installation / maintenance which facilitates the installation and adjustment of the device.
  • a metrology in phase installation / maintenance which facilitates the installation and adjustment of the device.
  • Examples of components usable on the carriers released for such an on-network are wireless access points DECT (Digital Enhanced Cordless Telephone), pico / femto-cells of the third generation system UMTS (Universal Mobile Telecommunications System) or of the LTE (Long Term Evolution) standard, Wi-Fi or WiFi Direct points, UMTS "device-to-device” terminals or LTE manet (Release 12) terminals known to those skilled in the art, etc.
  • DECT Digital Enhanced Cordless Telephone
  • pico / femto-cells of the third generation system UMTS (Universal Mobile Telecommunications System) or of the LTE (Long Term Evolution) standard Wi-Fi or WiFi Direct points
  • UMTS "device-to-device” terminals or LTE manet (Release 12) terminals known to those skilled in the art, etc.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Near-Field Transmission Systems (AREA)

Claims (11)

  1. Gerät zum begrenzten Stören, angeordnet in einer Abdeckungszone, in der sich verbotene Funkkommunikationsgeräte befinden können, deren Betrieb behindert werden soll, dadurch gekennzeichnet, dass es wenigstens die folgenden Elemente umfasst:
    • wenigstens ein lineares Kabel (1), das mehrere Öffnungen Oi aufweist, die das Ausstrahlen von Störsignalen zulassen, wobei das lineare Kabel (1) über einen Verbinder (3) mit einem oder mehreren Effektoren (2) verbunden ist,
    • wobei die ein oder mehreren Effektorelemente (2) zum Injizieren, an wenigstens einem Ende des linearen Kabels (1), von einem oder mehreren Störsignalen ausgelegt sind, wobei der Leistungsfluss Pj,f des Störsignals Jj,f in dem Band Bj,f eines Trägers f so gewählt wird, dass das Verhältnis PS,j,f/PJ,f zwischen dem Leistungsfluss PS,j,f des potentiell von dem verbotenen Gerät nutzbaren Signals Sj,f auf dem Träger f und dem Leistungsfluss PJ,f des auf dem Träger f vorhandenen Signals Jf zum Sperren des Betriebs des verbotenen Geräts kleiner ist als die Betriebsschwelle SeuilS,j,f des verbotenen Geräts (PS,j,f/PJ,f ≤ SeuilS,j,f), und dadurch, dass
    • die ein oder mehreren Effektoren (2) so ausgelegt sind, dass sie für einen Punkt M(r,l), in dem sich ein verbotenes Funkkommunikationsgerät (4) befindet, einen Wert der Spektraldichte Nj,f(r,l) des über den Verbinder (3) in der linearen Antenne injizierten Störsignals zu erzeugen, so dass für das Band Bi,f jedes Trägers f Folgendes erhalten wird: 10. log 10 N j , f r , l . B i , f ≥ 10. log 10 P S , j , f − 10. log 10 Seuil S , j , f + C r 0 + P ' . l − l 0 + 10. log 10 r / r 0 + η
    Figure imgb0013
     wobei
    • r,l die Koordinaten eines Punkts M sind,
    • l0 eine lineare Referenzdistanz ist, r0 eine radiale Referenzdistanz zu dem linearen Element bezeichnet,
    • P' das Verhältnis von linearen Verlusten entlang der Strahlungsantenne auf der Basis der Distanz IO bezeichnet,
    • -C(r0) die Verluste durch Kopplung im Band BJ mit der radialen Referenzdistanz r0 bezeichnet,
    • η eine Vorsichtsmarge unter Berücksichtigung von ergänzenden Dämpfungen des Störsignals bei seiner Ausbreitung von der Antenne zu dem verbotenen Endgerät repräsentiert.
  2. Störgerät nach Anspruch 1, dadurch gekennzeichnet, dass der Effektor (2) zum Erzeugen einer Sendeleistung unter Berücksichtigung von einem oder mehreren der folgenden Elemente ausgelegt ist:
    - Messwerte von Pegeln von Baken-, Steuer- und Verkehrssignalen von Sendern (8, 9, 10, 11), die in den externen Netzwerken vorhanden sind und mit den verbotenen Geräten in Kommunikation treten können,
    - lineare Verlustverhältnisse P' im linearen Kabel,
    - Verluste durch Kopplungen -C(r0) des linearen Kabels,
    - Margen η zum Kompensieren der ergänzenden Dämpfungen diverser Natur, die das Störsignal J bei seiner Ausbreitung vom linearen Kabel (1) zu dem zu störenden Gerät (4) beeinflussen können.
  3. Störgerät nach Anspruch 1, bei dem die Charakteristiken der verbotenen Funkkommunikationsgeräte und die Charakteristiken des Strahlungsregimes des Kabels zuvor bekannt oder gemessen sind, zum Parametrisieren und Regeln der Frequenzbänder des Störsignals, der Natur der ausgesendeten Störsignale und der Ausgangspegel des Effektors, dessen Signal über den Koppler (3) in das lineare Kabel injiziert wird.
  4. Störgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass wenigstens einer der Effektoren (2) zum Erzeugen und Senden von Störsignalen ausgelegt und ein generischer Breitbandstörer ist.
  5. Störgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Effektor (2), ausgelegt zum Erzeugen und Senden von Störsignalen, aus einem Satz von dedizierten Störern zusammengesetzt ist, deren Ausgangssignale zu Filterungs- und Verstärkungs- und Gleichrichtungsmodulen (6, 6') gesendet, dann in einen Koppler (7) injiziert werden, wobei der Ausgang des Kopplers (7) in das lineare Kabel (1) injiziert wird.
  6. Störgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Effektor (2) zum Erzeugen und Senden von Störsignalen ausgelegt ist und frequenzselektive Filtermodule umfasst, ausgelegt zum Beseitigen des Störsignals, um einen oder mehrere Träger freizusetzen, die von einem gesteuerten Funkkommunikationssubnetz benutzt werden können.
  7. Störgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass sie ein Mittel, ausgelegt zum Duplexieren des Signals am Ausgang eines Effektors, und ein Gerät zum Injizieren des Signals in zwei unterschiedliche lineare Kabel umfasst.
  8. Störgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass es einen ersten Effektor (42a) umfasst, angeordnet an einem ersten Ende (41a) des linearen Kabels (41), und einen zweiten Effektor (42b), angeordnet an einem zweiten Ende (41b) des linearen Kabels, um ein Störsignal J1, J2 an jedem Ende des linearen Kabels (41) zu injizieren.
  9. Störgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass es ein Baffle-System umfasst, ausgelegt zum lokalen Optimieren der Begrenzung, wie Elektrokabeldurchgangsgitter mit umgekehrter Montage, Maschengitter und diverser Geometrien.
  10. Verfahren zum begrenzten Stören des Betriebs von einem oder mehreren verbotenen Funkkommunikationsgeräten in einer gegebenen Zone, ausgeführt in dem Gerät nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass es wenigstens die folgenden Schritte beinhaltet:
    • Benutzen wenigstens eines linearen Kabels (1), das mehrere Öffnungen Oi aufweist, die das Ausstrahlen von Störsignalen zulassen, wobei das lineare Kabel mit einem oder mehreren Effektoren (2) über einen Verbinder (3) verbunden ist,
    • Injizieren, an wenigstens einem Ende des linearen Kabels (1), von einem oder mehreren Störsignalen, wobei der Leistungsfluss Pj,f des Störsignals hj,f in dem Band Bj,f eines Trägers f so gewählt wird, dass das Verhältnis PS,j,f/PJ,f zwischen dem Leistungsfluss PS,j,f des potentiell von dem verbotenen Gerät nutzbaren Signals Sj,f auf dem Träger f und dem Leistungsfluss PJ,f des auf dem Träger f vorhandenen Signals Jf zum Sperren des Betriebs des verbotenen Geräts kleiner ist als die Betriebsschwelle SeuilS,j,f des verbotenen Geräts (PS,j,f/PJ,f ≤ SeuilS,j,f).
  11. Verfahren zum begrenzten Stören nach Anspruch 10, dadurch gekennzeichnet, dass ein Wert der Spektraldichte Nj,f(r,l) für das in das lineare Kabel injizierte Störsignal erzeugt wird, so dass für das Band Bi,f jedes Trägers f: 10. log 10 N j , f r , l . B i , f ≥ 10. log 10 P S , j , f − 10. log 10 Seuil S , j , f + C r 0 + P ' . l − l 0 + 10. log 10 r / r 0 + η
    Figure imgb0014
     wobei
    • r,l die Koordinaten eines Punkts M sind,
    • I0 eine lineare Referenzdistanz ist,
    • r0 eine radiale Referenzdistanz zu dem linearen Element bezeichnet,
    • P' das Verhältnis von linearen Verlusten entlang dem strahlenden Kabel auf der Basis der Distanz IO bezeichnet,
    • -C(r0) die Verluste durch Kopplung im Band BJ mit der radialen Referenzdistanz r0 bezeichnet,
    • η eine Vorsichtsmarge unter Berücksichtigung von ergänzenden Dämpfungen des Störsignals bei seiner Ausbreitung von der Antenne zu dem verbotenen Endgerät repräsentieren.
EP14816179.7A 2013-12-11 2014-12-10 Störverfahren und vorrichtung mit begrenztem linearem effekt Active EP3080869B1 (de)

Applications Claiming Priority (2)

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FR1302900A FR3014618B1 (fr) 2013-12-11 2013-12-11 Procede et dispositif de brouillage a effet lineique confine
PCT/EP2014/077249 WO2015086690A1 (fr) 2013-12-11 2014-12-10 Procede et dispositif de brouillage a effet lineique confine

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CA (1) CA2933410A1 (de)
ES (1) ES2681276T3 (de)
FR (1) FR3014618B1 (de)
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PT (1) PT3080869T (de)
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ATE372030T1 (de) * 1997-06-02 2007-09-15 Netline Comm Technologies Nct Firewall für zellulare kommunikation
US6195529B1 (en) * 1998-03-12 2001-02-27 Joachim Linz Transmission blocker for mobile radio stations and method for preventing transmission activities of a mobile radio station

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MX367816B (es) 2019-09-06
MX2016007610A (es) 2017-03-15
PT3080869T (pt) 2018-07-27
WO2015086690A1 (fr) 2015-06-18
FR3014618B1 (fr) 2017-03-10
SG11201604796PA (en) 2016-07-28
CA2933410A1 (en) 2015-06-18
ES2681276T3 (es) 2018-09-12
EP3080869A1 (de) 2016-10-19
FR3014618A1 (fr) 2015-06-12

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