CN101895904B - Method and device for shielding mobile bombs - Google Patents
Method and device for shielding mobile bombs Download PDFInfo
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- CN101895904B CN101895904B CN201010221255.2A CN201010221255A CN101895904B CN 101895904 B CN101895904 B CN 101895904B CN 201010221255 A CN201010221255 A CN 201010221255A CN 101895904 B CN101895904 B CN 101895904B
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- Prior art keywords
- mobile terminal
- dtmf signal
- called
- caller
- shielding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
Abstract
The invention discloses a method and a device for shielding mobile bombs. The method comprises the following step that when judging that calling or incoming call is a mobile terminal according to a calling telephone number or a called telephone number, a network side shields a DTMF signal to be received by a calling mobile terminal or a called mobile terminal which is in a connected state. In the method and the device, a downlink DTMF signal is shielded by core network equipment, so that mobiles sending the DTMF signal through the mobile terminal to trigger bombs to explode cannot receive the DTMF signal; and thus, the problem that terrorists send the DTMF signal by utilizing the mobile terminal to control the bombs remotely is solved.
Description
Technical field
The present invention relates to the technology stoping and exploded by mobile terminal trigger bombings, particularly a kind of method and apparatus by stoping mobile terminal to receive dtmf signal shielding mobile bombs.
Background technology
In current terrorist activity all over the world, there is a kind of new attack of terrorism method, terrorist often utilizes a kind of mobile bombs system to carry out terrorist activity, and whole system, except explosive, only needs mobile phone, wire, one piece of battery, a switch and igniter.A mobile phone is first in talking state by terrorist, can be dial mobile phone A by PC software terminal, landline telephone or mobile phone B, also can be dial mobile phone B, landline telephone etc. by mobile phone A, then this mobile phone A is connected with an igniter, then, terrorist is a long way off by keeping other mobile phones of talking state or landline telephone to send dual tone multi-frequency dtmf signal to mobile phone A with mobile phone A, by the current activation bomb igniter circuit caused after mobile phone A receives dual tone multi-frequency dtmf signal, the explosive of destructor link will be detonated.Thus reach at any time, silent detonating the device carry out the object of terrorist activity everywhere.
Such device is unlike mobile bombs old in the past, needs, by calling, utilize the tinkle of bells of mobile phone, vibration and so on to trigger blast, and old mobile bombs existence was easily lost efficacy, and be easily found, easily missed the defects such as quick-fried, this type of novel mobile phone bomb avoids these defects, and harmfulness is larger.
Dtmf signal, at current field of telecommunications right and wrong signal usually, has a lot of business to utilize dtmf signal to carry out, and such as, prepaid user is supplemented with money by mobile phone terminal button; User carries out securities trading by mobile phone terminal button.According to the regulation of existing communication agreement, dtmf signal should be correctly delivered to location, designated destination, mobile phone produces corresponding dtmf signal sound after receiving dtmf signal, terrorist utilizes this technical characterstic just, mobile phone is utilized to produce the electric current of dtmf signal sound, trigger bombings explodes, and makes mobile phone become a kind of instrument of remote controlled bomb.
In order to avoid mobile phone becomes a kind of instrument of remote controlled bomb, need to shield the dtmf signal mailing to mobile phone, make mobile phone not receive dtmf signal, so mobile phone also would not produce corresponding current trigger bomb blast, stops terrorist to utilize mobile phone remote bomb.
Summary of the invention
The object of the present invention is to provide a kind of method of shielding mobile bombs, sending dtmf signal for solving shielding to terminal.
Another object of the present invention is to the device that a kind of shielding mobile bombs is provided, sending dtmf signal for solving shielding to terminal.
According to an aspect of the present invention, provide a kind of method of shielding mobile bombs, it is characterized in that, comprise the following steps:
When network side according to caller or called phone number judge caller or called for mobile terminal time, shielding is in the dtmf signal that the caller of talking state or called mobile terminal will receive.
According to a further aspect in the invention, provide a kind of device of shielding mobile bombs, it is characterized in that, comprising:
Number judging unit, for judging caller or called as mobile terminal according to caller or called subscriber's telephone number;
Signal shielding unit, for detecting, being separated, shield the dtmf signal that the caller that is in talking state or called mobile terminal will receive.
Compared with prior art, beneficial effect of the present invention is: the present invention shields descending dtmf signal by equipment of the core network, make the mobile phone being sent the blast of dtmf signal trigger bombings by mobile terminal to receive dtmf signal, solve terrorist and utilize mobile terminal to send the problem of dtmf signal remote controlled bomb.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of shielding mobile bombs provided by the invention;
Fig. 2 is the building-block of logic of shielding mobile bombs device provided by the invention;
Fig. 3 is the schematic diagram that user normally sends dtmf signal;
Fig. 4 is the schematic diagram that the network equipment that the embodiment of the present invention provides normally receives dtmf signal;
Fig. 5 is the schematic diagram that the MSC SERVER that provides of the embodiment of the present invention shields to the descending transmission dtmf signal of BSC;
Fig. 6 is that the MGW shielding that provides of the embodiment of the present invention is to the schematic diagram of the descending transmission dtmf signal of BSC.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Fig. 1 is the method flow of shielding mobile bombs provided by the invention, as shown in Figure 1:
Step S101, network side according to caller or called phone number judge caller or called whether be mobile terminal.
During calling, MSC SERVER obtains caller and called telephone number, limits under talking state to the dtmf signal that mobile terminal will receive.
Step S102, shielding is in the dtmf signal that the caller of talking state or called mobile terminal will receive.
When network side judges caller or called phone number is the telephone number of mobile terminal, the dtmf signal that shielding caller or called mobile terminal will receive.
In mobile terminal calling process, the caller that network side obtains when calling mobile terminal is called out according to MSC SERVER or called phone number, judge caller or called whether be mobile terminal, if caller or called be mobile terminal, and by MSC SERVER or MGW, network side detects that the mobile terminal being in talking state is about to receive dtmf signal, then directly be separated according to number analysis result, shield dtmf signal, if caller or called be the network equipment, the dtmf signal that mobile terminal sends by network side is sent to the described network equipment.Wherein, the dtmf signal that MSC SERVER transmits outward the band comprised in the signaling messages detects, is separated, shields, and MGW detects the dtmf signal transmitted in the band be included in voice packet, be separated, shield.Mobile terminal does not receive dtmf signal, shields mobile bombs.
In addition, also can judge whether again when being tested with dtmf signal to shield in communication process, first, network side is detected by MSC SERVER or MGW, isolate the dtmf signal that called or calling mobile terminal is about to receive.Then, MSC SERVER is according to the caller obtained when mobile terminal or the network equipment are called out or called phone number, judge caller or called whether be mobile terminal, if caller or called be mobile terminal, then shield the dtmf signal being about to reception by caller or called mobile terminal, if caller or called be the network equipment, the dtmf signal that mobile terminal sends by network side is sent to the described network equipment.
Fig. 2 shows the logical construction of shielding mobile bombs device provided by the invention, as shown in Figure 2.This device comprises number judging unit and signal shielding unit.
Wherein, number judging unit, for according to mobile terminal or the network equipment calling time mobile switching center server MSC SERVER obtain caller called subscriber's telephone number judge caller or called whether be mobile terminal;
Signal shielding unit, for detecting, being separated, shield the dual tone multi-frequency dtmf signal that the caller that is in talking state or called mobile terminal will receive.
Further, described number judging unit, also in mobile terminal calling process, according to mobile switching center server MSC SERVER calling mobile terminal or the network equipment calling time obtain caller or called phone number, judge caller or called whether be mobile terminal;
Described signal shielding unit, be connected to described number judging unit, also for when judge at the judging unit of number described in communication process caller or called be mobile terminal time, if detect dtmf signal by MSC SERVER or media gateway MGW, then according to number analysis result, if dtmf signal sends to mobile terminal, be separated, shield described dtmf signal.
Further, described number judging unit, also for caller or the called phone number of the MSC SERVER acquisition when calling mobile terminal or the network equipment are called out, in communication process, judge when described signal shielding unit inspection goes out dtmf signal whether the receiving terminal of described dtmf signal is mobile terminal; And
Described signal shielding unit, also in mobile terminal calling process, detected by MSC SERVER or MGW, isolate the dtmf signal that the network equipment or mobile terminal be about to receive, if detect that the receiving terminal of dtmf signal is mobile terminal according to number judging unit, then shield the described dtmf signal sent to mobile terminal.
In mobile terminal calling process, network side is according to the caller obtained during calling or called phone number, judge caller or called whether be mobile terminal, if caller or called be mobile terminal, and by MSCSERVER or MGW, network side detects that the mobile terminal being in talking state is about to receive dtmf signal, then directly be separated according to number analysis result, shield dtmf signal, if caller or called be the network equipment, the dtmf signal that mobile terminal sends by network side is sent to the described network equipment.
In addition, when also can detect dtmf signal in communication process, whether the caller obtained according to MSC SERVER or the judgement of called subscriber's telephone number are separated, shield descending dtmf signal, if judge, the receiving terminal of dtmf signal is mobile terminal, then shield descending transmission dtmf signal, if judge, the receiving terminal of dtmf signal is the network equipment, and the dtmf signal that mobile terminal sends by network side is sent to the described network equipment.
Fig. 3 shows the signal that user normally sends dtmf signal, as shown in Figure 3.The normal button of mobile terminal sends dtmf signal, and caller BSC/RNC is sent to core net CN this dtmf signal, and CN is sent to called BSC/RNC this dtmf signal again, and called BSC/RNC is sent to destination mobile terminal this dtmf signal.
The network equipment that Fig. 4 shows the embodiment of the present invention to be provided normally receives the signal of dtmf signal, as shown in Figure 4.The normal button of mobile terminal sends dtmf signal, and caller BSC/RNC is sent to destination network device by CN this dtmf signal dtmf signal.
The MSC SERVER that Fig. 5 shows the embodiment of the present invention to be provided shields the signal to the descending transmission dtmf signal of BSC, as shown in Figure 5.The normal button of mobile terminal sends dtmf signal, caller BSC/RNC is sent to CN dtmf signal dtmf signal, because CN judges that the intended recipient end of this dtmf signal is mobile terminal, so MSC SERVER shields dtmf signal, do not send dtmf signal to called BSC/RNC.Wherein, when dtmf signal transmits from band, MSC SERVER judges from corresponding signaling message whether the receiving terminal of dtmf signal is mobile terminal, if mobile terminal, is shielded by MSCSERVER; When dtmf signal transmits in band, MGW judges from voice packet whether the receiving terminal of dtmf signal is mobile terminal, if mobile terminal, is shielded by MGW.
In addition, can also control not issue descending dtmf signal to terminal by wireless access network equipments such as BSC/RNC, same object can be reached.
The MGW that Fig. 6 shows the embodiment of the present invention to be provided shields the signal to the descending transmission dtmf signal of BSC, as shown in Figure 6.The network equipment sends dtmf signal, and in being with, dtmf signal is sent to CN, MGW judges that the receiving terminal of this dtmf signal is mobile terminal, therefore shields this signal, does not send to called BSC/RNC.
In sum, the present invention has following technique effect: the present invention is directed to terrorist utilize mobile phone terminal to receive remote control current that dtmf signal produces detonates the device and carries out terrorist activity problem, do not affecting under the prerequisite that regular traffic carries out, by shielding descending dtmf signal, terminal is made not receive dtmf signal, the required electric current that detonates the device can not be produced, solve mobile phone and be used as the problem that remote controlled bomb carries out terrorist activity.
Although above to invention has been detailed description, the present invention is not limited thereto, those skilled in the art can carry out various amendment according to principle of the present invention.Therefore, all amendments done according to the principle of the invention, all should be understood to fall into protection scope of the present invention.
Claims (11)
1. a method for shielding mobile bombs, is characterized in that, comprises the following steps:
In mobile terminal calling process, network side judge caller or called whether be mobile terminal;
When network side judge caller or called be mobile terminal time, network side shielding is in the dual tone multi-frequency dtmf signal that the caller of talking state or called mobile terminal will receive, described caller or called mobile terminal is made not to receive dtmf signal, thus shielding mobile bombs, comprise;
When caller or called be mobile terminal, if network side detects that by mobile switching center server MSC SERVER or media gateway MGW the mobile terminal being in talking state is by receiving dtmf signal, be then separated and shield to send to mobile terminal dtmf signal then;
Wherein, the dtmf signal that MSC SERVER transmits outward the band comprised in the signaling messages detects, is separated;
Wherein, MGW detects the dtmf signal transmitted in the band be included in voice packet, is separated.
2. the method for a kind of shielding mobile bombs according to claim 1, is characterized in that, described in mobile terminal calling process, network side judge caller or called be whether that the step of mobile terminal comprises:
In mobile terminal calling process, network side according to mobile switching center server MSC SERVER calling mobile terminal or the network equipment calling time obtain caller or called phone number, judge caller or called whether be mobile terminal.
3. a method for shielding mobile bombs, is characterized in that, comprises the following steps:
In mobile terminal calling process, network side judge caller or called whether be mobile terminal;
When network side judge caller or called be mobile terminal time, network side shielding is in the dual tone multi-frequency dtmf signal that the caller of talking state or called mobile terminal will receive, described caller or called mobile terminal is made not to receive dtmf signal, thus shielding mobile bombs;
Wherein, described network side in mobile terminal calling process judge caller or called be whether that the step of mobile terminal comprises:
In mobile terminal calling process, network side is detected by MSC SERVER or MGW, isolate the dtmf signal that the network equipment or mobile terminal will receive;
MSC SERVER according to calling mobile terminal or the network equipment calling time obtain caller or called phone number, judge caller or called whether be mobile terminal;
Wherein, the dtmf signal that MSC SERVER transmits outward the band comprised in the signaling messages detects, is separated;
Wherein, MGW detects the dtmf signal transmitted in the band be included in voice packet, is separated.
4. the method for a kind of shielding mobile bombs according to claim 3, is characterized in that, the step that described network side shielding is in the dual tone multi-frequency dtmf signal that the caller of talking state or called mobile terminal will receive comprises:
If MSC SERVER judge caller or called be mobile terminal, then shield the described dtmf signal sent to mobile terminal.
5. the method for a kind of shielding mobile bombs according to claim 2 or 4, is characterized in that, if caller or called be the network equipment, the dtmf signal detected is sent to the described network equipment by network side.
6. the method for a kind of shielding mobile bombs according to claim 5, is characterized in that, the dtmf signal that MSCSERVER transmits outward the band comprised in the signaling messages detects, is separated; And MGW detects the dtmf signal transmitted in the band be included in voice packet, is separated.
7. the method for a kind of shielding mobile bombs according to claim 2 or 4, is characterized in that, described detection, separation, shielding dtmf signal one of comprise the following steps:
If dtmf signal is included in voice packet, then MSC SERVER detects described dtmf signal, be separated, shield; And
If dtmf signal is included in corresponding signaling message, then MGW detects described dtmf signal, be separated, shield.
8. a device for shielding mobile bombs, is characterized in that, comprise network side with lower unit:
Number judging unit, in mobile terminal calling process, network side judge caller or called whether be mobile terminal; And
Signal shielding unit, for judge at network side caller or called be mobile terminal time, shielding is in the dual tone multi-frequency dtmf signal that the caller of talking state or called mobile terminal will receive; And
Wherein, described signal shielding unit is connected to described number judging unit, be further used for when judge at the judging unit of number described in communication process caller or called be mobile terminal time, if detect that the mobile terminal being in talking state is about to receive dtmf signal by mobile switching center server MSC SERVER or media gateway MGW, then be separated, shield and will send to mobile terminal described dtmf signal then, described caller or called mobile terminal is made not to receive dtmf signal, thus shielding mobile bombs;
Wherein, the dtmf signal that MSC SERVER transmits outward the band comprised in the signaling messages detects, is separated;
Wherein, MGW detects the dtmf signal transmitted in the band be included in voice packet, is separated.
9. the device of a kind of shielding mobile bombs according to claim 8, is characterized in that,
Described number judging unit, be further used in mobile terminal calling process, according to mobile switching center server MSC SERVER calling mobile terminal or the network equipment calling time obtain caller or called phone number, judge caller or called whether be mobile terminal.
10. a device for shielding mobile bombs, is characterized in that, comprise network side with lower unit:
Number judging unit, in mobile terminal calling process, network side judge caller or called whether be mobile terminal; And
Signal shielding unit, for judge at network side caller or called be mobile terminal time, shielding is in the dual tone multi-frequency dtmf signal that the caller of talking state or called mobile terminal will receive, and makes described caller or called mobile terminal not receive dtmf signal, thus shielding mobile bombs;
Wherein, described number judging unit is also further used in mobile terminal calling process, after network side is detected by MSC SERVER or MGW, isolates dtmf signal that the network equipment or mobile terminal will receive, MSC SERVER according to calling mobile terminal or the network equipment calling time obtain caller or called phone number, judge caller or called whether be mobile terminal;
Wherein, the dtmf signal that MSC SERVER transmits outward the band comprised in the signaling messages detects, is separated;
Wherein, MGW detects the dtmf signal transmitted in the band be included in voice packet, is separated.
The device of 11. a kind of shielding mobile bombs according to claim 10, it is characterized in that, described signal shielding unit, also be further used in mobile terminal calling process, detected by MSC SERVER or MGW, isolate the dtmf signal that the network equipment or mobile terminal be about to receive, if detect that the receiving terminal of dtmf signal is mobile terminal according to number judging unit, then shield the described dtmf signal sent to mobile terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010221255.2A CN101895904B (en) | 2010-07-08 | 2010-07-08 | Method and device for shielding mobile bombs |
| PCT/CN2011/075773 WO2012003761A1 (en) | 2010-07-08 | 2011-06-15 | Method and device for shielding mobile phone bomb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010221255.2A CN101895904B (en) | 2010-07-08 | 2010-07-08 | Method and device for shielding mobile bombs |
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| Publication Number | Publication Date |
|---|---|
| CN101895904A CN101895904A (en) | 2010-11-24 |
| CN101895904B true CN101895904B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010221255.2A Active CN101895904B (en) | 2010-07-08 | 2010-07-08 | Method and device for shielding mobile bombs |
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| CN (1) | CN101895904B (en) |
| WO (1) | WO2012003761A1 (en) |
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| CN101895904B (en) * | 2010-07-08 | 2015-04-01 | 中兴通讯股份有限公司 | Method and device for shielding mobile bombs |
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| CN101098559A (en) * | 2007-05-30 | 2008-01-02 | 华为技术有限公司 | Method, system and device for restraining malice back-dialing card service |
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| CN101331749A (en) * | 2005-08-12 | 2008-12-24 | 朗迅科技公司 | Network support for restricting wireline call terminations in a security risk area |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100692927B1 (en) * | 2006-01-18 | 2007-03-12 | 프롬투정보통신(주) | A system and a method for protecting dtmf signal |
| CN101340681B (en) * | 2008-08-13 | 2011-05-11 | 中兴通讯股份有限公司 | Implementing method and apparatus for shielding DTMF sound of outer telephone |
| CN102224747B (en) * | 2009-11-11 | 2016-08-31 | 华为技术有限公司 | Process the methods, devices and systems of downstream signal |
| CN101895904B (en) * | 2010-07-08 | 2015-04-01 | 中兴通讯股份有限公司 | Method and device for shielding mobile bombs |
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2010
- 2010-07-08 CN CN201010221255.2A patent/CN101895904B/en active Active
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2011
- 2011-06-15 WO PCT/CN2011/075773 patent/WO2012003761A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101288327A (en) * | 2005-07-22 | 2008-10-15 | 朗迅科技公司 | Network support for restricting call terminations in a security risk area |
| CN101331749A (en) * | 2005-08-12 | 2008-12-24 | 朗迅科技公司 | Network support for restricting wireline call terminations in a security risk area |
| CN101098559A (en) * | 2007-05-30 | 2008-01-02 | 华为技术有限公司 | Method, system and device for restraining malice back-dialing card service |
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| Publication number | Publication date |
|---|---|
| CN101895904A (en) | 2010-11-24 |
| WO2012003761A1 (en) | 2012-01-12 |
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Effective date of registration: 20200716 Address after: 210012 Nanjing, Yuhuatai District, South Street, Bauhinia Road, No. 68 Patentee after: Nanjing Zhongxing Software Co.,Ltd. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corp. |
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