CN109120359A - A kind of intelligent mobile signal shielding method based on wireless signal competition - Google Patents
A kind of intelligent mobile signal shielding method based on wireless signal competition Download PDFInfo
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- CN109120359A CN109120359A CN201811054254.6A CN201811054254A CN109120359A CN 109120359 A CN109120359 A CN 109120359A CN 201811054254 A CN201811054254 A CN 201811054254A CN 109120359 A CN109120359 A CN 109120359A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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Abstract
The invention discloses a kind of intelligent mobile signal shielding method based on wireless signal competition, the first step draws out the RSPF of each region to needing shielding area to pass through testing tool region-by-region, pointwise test according to test frequency range；Second step is combined plateform system networking using POI alien frequencies；Third step, synchronization signal configuration；4th step builds passive device；5th step, coverage planning；6th step, signal leak control measure.This method have the advantages that green low radiation, full system type pictorial high efficiency, perimeter control precisely, height intelligent adaptive, integrate the multi-functionals such as signal shielding, the detecting of illegal mobile phone, positioning, is that a kind of can intelligently detect shielding harness following with the mobile phone signal of new generation of smooth upgrade.
Description
Technical field
The present invention relates to a kind of movable signal screen methods, and in particular to a kind of intelligent mobile based on wireless signal competition
Signal shielding method belongs to wireless communication technology field.
Background technique
With the scale of operator's 3G, 4G communication network development, and future 5G communication network development trend, mobile phone is moved
The security management and control of dynamic signal of communication faces very big challenge, and traditional Shielding plan is mainly in mobile communication working frequency range, transmitting
Powerful white noise interference signal suppresses carrier network signal using powerful interference signal, mobile phone is made to receive noise
Than degradation, normal communication can not be carried out, to realize the purpose of shielding, this shield technology is simple and easy, it is at low cost, because
And it is most widely used.But this method needs to emit larger interference energy when equipment works, large scale deployment is brought sternly
It radiates again, it is unhealthful；And it is limited based on the screening range that signal strength pressing mode is carried out, due to landform in shielding area
The diversification of atural object, there is a large amount of shielding blind spot and dead angles；Need to emit high-power shielded signal, signal covering precision
Difference, overlay area control bad, periphery serious interference, easily cause operator and nearby residents are complained；Inadaptable movement simultaneously
Communication system evolution.
Summary of the invention
In order to overcome various deficiencies of the existing technology, the present invention provides a kind of intelligent sliding based on wireless signal competition
Dynamic signal shielding method, it is low for ambient radiation, and perimeter control is accurate, shield ranges are big and accurate, and can in future
With smooth upgrade, existing mobile communication system is more adapted to.
To solve the above-mentioned problems, a kind of intelligent mobile signal shielding method based on wireless signal competition of the present invention, packet
Include following steps,
The first step is drawn out each to needing shielding area to pass through testing tool region-by-region, pointwise test according to test frequency range
The RSPF in region；
The RSPF is to receive signal reference power value, and the laying for next step shielded signal provides foundation.
Second step, using POI alien frequencies be combined plateform system networking, GSM, TD-SCDMA, WCDMA, CDMA, TDD-LTE,
FDD-LTE shares a set of POI system and a set of antenna-feeder system；
Third step, synchronization signal configuration, the stringent time synchronization based on GPS satellite signal of TD-LTE system in system
TD-LTE, that is, orthogonal frequency division multiplexi.
4th step builds passive device, and actual conditions are as follows:
A, feeder line uses length less than 50 meters, with 1/2 feeder line；Feeder line is greater than 50 meters using length, with 7/8 feeder line；Trunk
Feeder line is greater than 30 meters using length, with 7/8 feeder line；
B, line lay the principle that follow " small-power, multiple antennas ", enclosed environment, and antenna lays 8-10 meters of spacing；Half seals
Closed loop border, antenna lay 10-15 meters of spacing；Free environments, antenna lay 12-17 meters of spacing；
Day line density and antenna placement should be rationally determined according to simulation test result, be evenly distributed as much as possible signal.
C, in such a way that directional aerial is internally covered by facing window region, it is effective against outdoor stronger public network signal,
Make the good covering of indoor acquisition, while reducing leaking for signal；
D chooses suitable power splitter, coupler according to working frequency, range, loss demand；
5th step, coverage planning, specific step is as follows,
A, radio transmission model
(1) radio transmission model is established
PL=32.5+20lgD++20lgf+Lw；
In formula, PL: space loss is indicated with dB；
D: sending and receiving antenna distance, as unit of Km；
F: frequency is indicated, as unit of MHz；
The loss of Lw obstacle, is indicated with dB；
B carries out link budget
Link calculation is divided into two parts, and a part is aerial loss, and another part is that information source is lost to antenna port, below
Abbreviation wire link budget, when using inactive component networking, general link calculation can only consider downlink budget, specific pre-
It calculates as follows:
Antenna opening input power=active device output power (base station, dry put)-∑ coupler loss-∑ power splitter damage
Remaining device loss of consumption-∑ splicing loss-∑ feeder loss-∑ splicing loss-∑；
6th step, signal leak control, according to on-site actual situations for the place easily leaked using the control measure that leak.
Specifically, test frequency range is respectively 1800M-1900M, 2100M-2200M, 2300M-2320M in the first step.
In order to guarantee that multiple system coverings are balanced, in second step, the frequency combiner of each system need to match comparable input
Power guarantees the high 10-20dbm of public network signal intensity that system signal RSPF ratio measures to reach equivalent covering.
Meanwhile antenna outlet power is no more than 15dbm, and meets national Electromagnetic Radiation Standards.
Specifically, the signal in the 6th step leaks, control includes following methods:
(1) increase attenuator at equipment；
(2) directional ceiling antenna or plate antenna are used；
(3) antenna outlet power is reduced；
(4) it suitably adjusts the angle of declination of antenna and hangs high；
(5) small-power, multiple antennas are used.
Position all mobile phones in control region first by the above method, it is all in region by being managed to target
The communication of the illegal mobile phone of 2G, 3G, 4G or unauthorized mobile phone effectively detecting and behavior capture in real time, and then obtain and record mobile phone
Log-on message (IMSI, IMEI, TMSI, No. ESN), operator, ownership place, time of the act, called number, by transmission short message number
Code, short message content etc., while can obtain automatically and by IMSI, IMEI, TMSI, ESN number automatic translation of all illegal mobile phones
For 11 phone numbers；According to above- mentioned information again to illegal mobile phone and behavior (invasion, time of the act, booting, telephony recording and short
Letter behavior) carry out instant zone location；Then cooperate positioning device, precise positioning is carried out to mobile phone in this system control area, no
The specific physical location of mobile phone can be only tracked, until finding oriented mobile phone.
Then the mobile phone in target area is shielded using " virtual base station " established, " virtual base station " utilizes movement
The technology of communication protocol level, carrier network covering on superposition shielding network, by finely covering, parameter adjustment etc. side
Method allows the mobile phone terminal of target area to be transferred in shielding network by modes such as gravity treatments from carrier network, to cut off mobile phone
Terminal transmits the approach of information (including call, short multimedia message, data service) outward, to reach the mesh of shielding carrier network signal
's；Dedicated frequency range can be reserved according to the actual situation simultaneously, staff's normal communication in authorization control region, trunked call,
The functions such as command scheduling.This method is based on optical fiber distributed type intelligently detecting shielding and ultra low power lift-off technology principle, has
Green low radiation, full system type pictorial high efficiency, perimeter control precisely, height intelligent adaptive the advantages of, collect signal shielding, illegal mobile phone
The multi-functionals such as detecting, positioning are that a kind of can intelligently detect screen following with the mobile phone signal of new generation of smooth upgrade in one
Cover system.
Detailed description of the invention
Fig. 1 is system structure of the invention figure.
Specific embodiment
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of intelligent mobile signal shielding method based on wireless signal competition, includes the following steps,
The first step, to need shielding area according to test frequency range survey 1800M-1900M, 2100M-2200M, 2300M-2320M
By testing tool region-by-region, pointwise test, the RSPF of each region is drawn out；
The RSPF is to receive signal reference power value, and the laying for next step shielded signal provides foundation.
Second step, using POI alien frequencies be combined plateform system networking, GSM, TD-SCDMA, WCDMA, CDMA, TDD-LTE,
FDD-LTE shares a set of POI system and a set of antenna-feeder system；In order to guarantee that multiple system coverings are balanced, the frequency of each system
Combiner need to match comparable input power to reach equivalent covering, and the public network signal for guaranteeing that system signal RSPF ratio measures is strong
Spend high 10-20dbm；Meanwhile antenna outlet power is no more than 15dbm, and meets national Electromagnetic Radiation Standards.
Third step, synchronization signal configuration, the stringent time synchronization based on GPS satellite signal of TD-LTE system in system；
TD-LTE, that is, orthogonal frequency division multiplexi.
4th step builds passive device, and actual conditions are as follows:
A, feeder line uses length less than 50 meters, with 1/2 feeder line；Feeder line is greater than 50 meters using length, with 7/8 feeder line；Trunk
Feeder line is greater than 30 meters using length, with 7/8 feeder line；
B, line lay the principle that follow " small-power, multiple antennas ", enclosed environment, and antenna lays 8-10 meters of spacing；Half seals
Closed loop border, antenna lay 10-15 meters of spacing；Free environments, antenna lay 12-17 meters of spacing；
Day line density and antenna placement should be rationally determined according to simulation test result, be evenly distributed as much as possible signal.
C, in such a way that directional aerial is internally covered by facing window region, it is effective against outdoor stronger public network signal,
Make the good covering of indoor acquisition, while reducing leaking for signal；
D chooses suitable power splitter, coupler according to working frequency, range, loss demand.
5th step, coverage planning, specific step is as follows,
A, radio transmission model
(1) radio transmission model is established
PL=32,5+20lgD++20lgf+Lw；
PL in formula: space loss is indicated with dB；
D: sending and receiving antenna distance, as unit of Km；
F: frequency is indicated, as unit of MHz；
The loss of Lw obstacle, is indicated with dB；
B carries out link budget
Link calculation is divided into two parts, and a part is aerial loss, and another part is that information source is lost to antenna port, below
Abbreviation wire link budget, when using inactive component networking, general link calculation can only consider downlink budget, specific pre-
It calculates as follows:
Antenna opening input power=active device output power (base station, dry put)-∑ coupler loss-∑ power splitter damage
Remaining device loss of consumption-∑ splicing loss-∑ feeder loss-∑ splicing loss-∑.
6th step, signal leak control, according to on-site actual situations for the place easily leaked using the control measure that leak.
Specifically, the signal in the 6th step leaks, control includes following methods:
(1) increase attenuator at equipment；
(2) directional ceiling antenna or plate antenna are used；
(3) antenna outlet power is reduced；
(4) it suitably adjusts the angle of declination of antenna and hangs high；
(5) small-power, multiple antennas are used.
The present invention establishes the mobile letter of virtual base station transmitting by detecting to scene 2G, 3G, 4G movable signal intensity
Number, public network signal is shielded by way of competition through big level-one power signal, is economized on resources to greatest extent, and radiation pollution is reduced.
Claims (4)
1. a kind of intelligent mobile signal shielding method based on wireless signal competition, which is characterized in that include the following steps,
The first step draws out each region to needing shielding area to pass through testing tool region-by-region, pointwise test according to test frequency range
RSPF；
Second step is combined plateform system networking, GSM, TD-SCDMA, WCDMA, CDMA, TDD-LTE, FDD- using POI alien frequencies
LTE shares a set of POI system and a set of antenna-feeder system；
Third step, synchronization signal configuration, the stringent time synchronization based on GPS satellite signal of TD-LTE system in system；
4th step builds passive device, and actual conditions are as follows:
A, feeder line uses length less than 50 meters, with 1/2 feeder line；Feeder line is greater than 50 meters using length, with 7/8 feeder line；Trunk feeder
It is greater than 30 meters using length, with 7/8 feeder line；
B, line lay the principle that follow " small-power, multiple antennas ", enclosed environment, and antenna lays 8-10 meters of spacing；Semi-closed ring
Border, antenna lay 10-15 meters of spacing；Free environments, antenna lay 12-17 meters of spacing；
C, in such a way that directional aerial is internally covered by facing window region, it is effective against outdoor stronger public network signal, makes room
It is interior to obtain good covering, while reducing leaking for signal；
D chooses suitable power splitter, coupler according to working frequency, range, loss demand；
5th step, coverage planning, the specific steps are as follows:
A, radio transmission model
(1) radio transmission model is established
PL=32.5+20lgD++20lgf+Lw；
In formula, PL: space loss is indicated with dB；
D: sending and receiving antenna distance, as unit of Km；
F: frequency is indicated, as unit of MHz；
The loss of Lw obstacle, is indicated with dB；
B carries out link budget
Link calculation is divided into two parts, and a part is aerial loss, and another part is that information source is lost to antenna port, hereinafter referred to as
Wire link budget, when using inactive component networking, general link calculation can only consider downlink budget, and specific budget is such as
Under:
Antenna opening input power=active device output power (base station, dry put)-∑ coupler loss-∑ power splitter loss-
Remaining device loss of ∑ splicing loss-∑ feeder loss-∑ splicing loss-∑；
6th step, signal leak control, according to on-site actual situations for the place easily leaked using the control measure that leak.
2. the intelligent mobile signal shielding method according to claim 1 based on wireless signal competition, which is characterized in that the
In one step, test frequency range is respectively 1800M-1900M, 2100M-2200M, 2300M-2320M.
3. the intelligent mobile signal shielding method according to claim 2 based on wireless signal competition, which is characterized in that the
In two steps, the frequency combiner of each system need to match comparable input power to reach equivalent covering, and guarantee system signal
The high 10-20dbm of public network signal intensity that RSPF ratio measures；Antenna outlet power is no more than 15dbm, and meets national electromagnetic radiation
Standard.
4. according to claim 1 to the intelligent mobile signal shielding side based on wireless signal competition described in 3 any claims
Method, which is characterized in that it includes following methods that the signal in the 6th step, which leaks and controls:
(1) increase attenuator at equipment；
(2) directional ceiling antenna or plate antenna are used；
(3) antenna outlet power is reduced；
(4) it suitably adjusts the angle of declination of antenna and hangs high；
(5) small-power, multiple antennas are used.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464691A (en) * | 2020-03-27 | 2020-07-28 | 西安中本教育科技有限公司 | Intelligent management and control system for mobile phone signals |
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| CN106332100A (en) * | 2015-07-09 | 2017-01-11 | 福建澳瀚信息技术有限公司 | Networking device for blocking wireless signals |
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| CN107332640A (en) * | 2017-06-12 | 2017-11-07 | 京信通信系统（中国）有限公司 | The screen method and device of a kind of wireless signal |
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| CN101482889A (en) * | 2008-01-29 | 2009-07-15 | 天津赛乐新创通信技术有限公司 | Intelligent multi-network indoor wireless link design engine |
| EP3087717A1 (en) * | 2013-12-23 | 2016-11-02 | Thales | Miniaturized system for confined detection and location |
| CN106332100A (en) * | 2015-07-09 | 2017-01-11 | 福建澳瀚信息技术有限公司 | Networking device for blocking wireless signals |
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| CN111464691A (en) * | 2020-03-27 | 2020-07-28 | 西安中本教育科技有限公司 | Intelligent management and control system for mobile phone signals |
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