CN106685574A - Signal shielding method and device - Google Patents
Signal shielding method and device Download PDFInfo
- Publication number
- CN106685574A CN106685574A CN201611209337.9A CN201611209337A CN106685574A CN 106685574 A CN106685574 A CN 106685574A CN 201611209337 A CN201611209337 A CN 201611209337A CN 106685574 A CN106685574 A CN 106685574A
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- signal
- base station
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- 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
- H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
-
- 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
- H04K3/62—Jamming involving special techniques by exposing communication, processing or storing systems to electromagnetic wave radiation, e.g. causing disturbance, disruption or damage of electronic circuits, or causing external injection of faults in the information
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a signal shielding method. The method comprises: the range of frequencies currently being used by the base station is obtained; the location of main sync signal time gap is obtained based on the range of frequencies currently being used by the base station; interference signal is transmitted based on the location of main sync signal time gap. User devices, such as mobile terminal and the like, receive the down going signal sent by the base station in the main sync signal time gap, then the descending synchronization with the base station is obtained. And the user devices meanwhile send the leading code sequence of request random access to the base station in the main sync signal time gap, therefore, transmitting interference signal in the main sync signal time gap enables the user devices not to search the network and communicate normally at the same time. Hence, the method has the advantages that the shielding effect of the signal is enhanced, the power of the signal shielding device is reduced, energy is saved, and radiation to the human body is reduced.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of signal shielding method and device.
Background technology
With the high speed development of wireless communication technology, the mobile terminal such as mobile phone, intercom so that its is convenient, fast, not by when
Between with place limitation etc. many advantages be popular with the masses of users, its number of users constantly increases, life and work in people
The every field such as agricultural production play key player, indispensable instrument in being increasingly becoming people's daily life and having worked
One of.
But mobile terminal is while the life for giving people brings great convenience, also generate that some can not be ignored asks
Topic.Because the coverage rate of mobile communications network is very wide, the appearance of network, the use of mobile terminal in some cases gives people on the contrary
Class makes troubles, or even potential safety hazard occurs, for example：As new pollution source of noise, normal work order is disturbed；As new
Leak channel, security information is constituted a threat to safely；As new unsafe factor, hidden danger is brought to enterprise security；Turn into
New means of crime, influence is brought to social stability.Therefore we want artificial destruction or limit this network in some places, it is to avoid
The harm that mobile network brings, for example, the wireless signal in shielding examination hall, with the possibility for preventing to be practised fraud by radio, is safeguarded
The fairness of examination；Wireless signal in shielding momentous conference room, to prevent from leaking state secrets.
In existing shield technology, carry out modulation voltage using scanning source or noise source and control oscillator (Voltage
Controlled Oscillator, VCO) output swept-frequency signal, scanned from the low end frequency of forward channel to high end frequency, and
The downstream signal of covering signal interference base station is produced in all frequency ranges of down channel so that terminal cannot differentiate base station transmission
Downstream signal, reaches the effect shielded to signal.This signal shielding scheme is sent out incessantly in whole frequency range
Shielded signal is penetrated, noise signal is introduced into tone signal to strengthen interference effect.But frequency sweep has very big power incessantly
Loss, increased the radiation to human body, and for the frequency range that certain is currently in use, interference performance is smaller, and shield effectiveness is poor.
Therefore, how a kind of radiation reduced to human body, and the more preferable signal shielding method of shield effectiveness are provided, are turned into
The problem of this area urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of radiation reduced to human body, and the more preferable signal shielding method of shield effectiveness
And device.
The purpose of the present invention is achieved through the following technical solutions：
A kind of signal shielding method, including：
Obtain the band limits that base station is presently using；
According to the band limits that base station is presently using, the position of master sync signal time slot is obtained；
Position transmitting interference signal according to the master sync signal time slot.
Preferably, the band limits being presently using according to base station, obtains the position of master sync signal time slot
Step is specifically included：
In the band limits that base station is presently using, it is determined that the baseband signal for carrying out frame synchronization；
Frame synchronization is carried out according to the baseband signal and default main synchronizing sequence, the initial time of frame is determined；
According to the initial time of the frame, the position of master sync signal time slot is determined.
Preferably, it is described in the band limits that base station is presently using, it is determined that believing for carrying out the base band of frame synchronization
Number the step of specifically include：
In the band limits that base station is presently using, the signal of Base Transmitter is received；
The signal of the Base Transmitter is converted into the baseband signal for carrying out frame synchronization.
Preferably, it is described that frame synchronization is carried out according to the baseband signal and default main synchronizing sequence, determine rising for frame
Begin to be specifically included the step of the moment：
According to the baseband signal and default main synchronizing sequence, maximum correlation peaks are determined；
According to the maximum correlation peaks, the main synchronizing sequence of the corresponding cell of the band limits and main synchronization are determined
The main scrambler position of channel, completes frame synchronization and determines the initial time of frame.
Preferably, the step of band limits that the acquisition base station is presently using, specifically includes：In full range segment limit
The interior signal for monitoring Base Transmitter, according to the intensity of the signal for listening to, determines the band limits that base station is currently in use.
The present invention discloses a kind of signal shielding device of automobile, including：
Frequency range determining unit, for obtaining the band limits that base station is presently using；
Slot determining unit, for the band limits being presently using according to base station, obtains master sync signal time slot
Position；
Interference signal transmitter unit, for launching interference signal according to the position of the master sync signal time slot.
Preferably, the Slot determining unit is specifically included：
For in the band limits that is presently using in base station, it is determined that the mould of the baseband signal for carrying out frame synchronization
Block；
For carrying out frame synchronization according to the baseband signal and default main synchronizing sequence, the initial time of frame is determined
Module；And
For the initial time according to the frame, the position module of master sync signal time slot is determined.
Preferably, in the band limits for being presently using in base station, it is determined that the base for carrying out frame synchronization
The module of band signal is specifically included：
For in the band limits that is presently using in base station, receiving the module of the signal of Base Transmitter；And
Module for the signal of the Base Transmitter to be converted into the baseband signal for carrying out frame synchronization.
Preferably, for carrying out frame synchronization according to the baseband signal and default main synchronizing sequence, rising for frame is determined
The module at moment beginning is specifically included：
For according to the baseband signal and default main synchronizing sequence, determining the module of maximum correlation peaks；And
For according to the maximum correlation peaks, determining main synchronizing sequence and the master of the corresponding cell of the band limits
The main scrambler position of synchronizing channel, completes frame synchronization and determines the module of the initial time of frame.
Preferably, the frequency range determining unit is specifically included：Signal for monitoring Base Transmitter in the range of full frequency band,
According to the intensity of the signal for listening to, the module of the band limits that base station is currently in use is determined.
Signal shielding method of the invention is due to including：Obtain the band limits that base station is presently using；According to base station
The band limits being presently using, obtains the position of master sync signal time slot；According to the position of the master sync signal time slot
Transmitting interference signal.The signal shielding method that the present invention is provided by determining the band limits that base station is currently in use, and in the base
The position of master sync signal time slot is determined in the band limits that station is currently in use, because user equipment such as mobile terminal etc. is in master
Synchronizing signal time slot receives the downstream signal that base station sends, and then obtains the down-going synchronous with base station, and user equipment is simultaneously
It is also the preamble sequence for sending request Stochastic accessing to base station in master sync signal time slot.Thus, in the master sync signal
Slot transmission interference signal, may be such that user equipment cannot search network, at the same cannot proper communication, therefore the method strengthen
To the shield effectiveness of signal.Also, the method is due to only in master sync signal slot transmission interference signal, rather than whole
Frequency range persistently launches interference signal, therefore reduces the power of signal shielding equipment, can energy saving, and reduce the spoke to human body
Penetrate.
The present invention proposes one kind and accurately disturbs master sync signal, so as to realize the scheme of signal shielding function, can letter
Change signal shielding equipment, can effectively reduce the power of signal shielding equipment, reduce the radiation to human body, and obtain letter good enough
Number shield effectiveness.
Brief description of the drawings
Fig. 1 is the flow chart of the signal shielding method of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the signal shielding device of automobile of the embodiment of the present invention.
Specific embodiment
Although operations to be described as flow chart the treatment of order, many of which operation can by concurrently,
Concomitantly or simultaneously implement.The order of operations can be rearranged.Treatment when its operations are completed can be terminated,
It is also possible to have the additional step being not included in accompanying drawing.Treatment can correspond to method, function, code, subroutine, son
Program etc..
Computer equipment includes user equipment and the network equipment.Wherein, user equipment or client include but is not limited to electricity
Brain, smart mobile phone, PDA etc.；The network equipment includes but is not limited to single network server, the service of multiple webserver compositions
Device group or the cloud being made up of a large amount of computers or the webserver based on cloud computing.Computer equipment can isolated operation realize
The present invention, also can access network and realizes the present invention by with the interactive operation of other computer equipments in network.Calculate
Network residing for machine equipment includes but is not limited to internet, wide area network, Metropolitan Area Network (MAN), LAN, VPN etc..
Term " first ", " second " etc. is may have been used herein to describe unit, but these units should not
When limited by these terms, it is used for the purpose of making a distinction a unit and another unit using these terms.Here institute
The term "and/or" for using includes any and all combination of the listed associated item of one of them or more.When one
Unit is referred to as " connection " or during " coupled " to another unit, and it can be connected or coupled to another unit, or
There may be temporary location.
Term used herein above is not intended to limit exemplary embodiment just for the sake of description specific embodiment.Unless
Context clearly refers else, and singulative " one " otherwise used herein above, " one " also attempt to include plural number.Should also
When understanding, term used herein above " including " and/or "comprising" specify stated feature, integer, step, operation,
The presence of unit and/or component, and do not preclude the presence or addition of one or more other features, integer, step, operation, unit,
Component and/or its combination.
The invention will be further described with preferred embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of signal shielding method disclosed in the present embodiment, including：
The band limits that S101, acquisition base station are presently using；
S102, the band limits being presently using according to base station, obtain the position of master sync signal time slot；
S103, according to the position of the master sync signal time slot launch interference signal.
The signal shielding method of the embodiment of the present invention is due to including：Obtain the band limits that base station is presently using；Root
The band limits being presently using according to base station, obtains the position of master sync signal time slot；According to the master sync signal time slot
Position transmitting interference signal.Signal shielding method provided in an embodiment of the present invention is by determining frequency range model that base station is currently in use
Enclose, and the position of master sync signal time slot is determined in the band limits that the base station is currently in use, due to user equipment such as mobile phone
It is to receive the downstream signal that base station sends in master sync signal time slot Deng mobile terminal, and then obtains the down-going synchronous with base station,
And user equipment is also simultaneously the preamble sequence for sending request Stochastic accessing to base station in master sync signal time slot.Thus,
In the master sync signal slot transmission interference signal, may be such that user equipment cannot search network, while cannot just normal open
Letter, therefore this approach enhance the shield effectiveness to signal.Also, the method in master sync signal slot transmission due to only disturbing
Signal, interference signal is persistently launched rather than in whole frequency range, therefore reduces the power of signal shielding equipment, can save energy
Source, and reduce the radiation to human body.
The embodiment of the present invention proposes one kind and accurately disturbs master sync signal, so as to realize the side of signal shielding function
Case, can simplify signal shielding equipment, can effectively reduce the power of signal shielding equipment, reduce the radiation to human body, and obtain foot
Enough good signal shielding effects.At present, for network formats such as traditional 2G, 3G, carry out checking dry using traditional frequency-division section
The pattern disturbed realizes signal shielding.For the network of TD-LTE standards, using it is existing in special time slot DwPTS (under
Row pilot time slot) and UpPTS (uplink pilot time slot) synchronize and disturb so as to realize signal shielding function.For FDD-
LTE standards networking, determines the band limits that base station is currently in use；In the band limits, the position of master sync signal is determined；
In the master sync signal slot transmission interference signal.The signal shielding method that the present embodiment is provided is mainly for FDD-LTE systems
Formula network.
According to one of example, the band limits being presently using according to base station, when obtaining master sync signal
The step of position of gap, specifically includes：
In the band limits that base station is presently using, it is determined that the baseband signal for carrying out frame synchronization；
Frame synchronization is carried out according to the baseband signal and default main synchronizing sequence, the initial time of frame is determined；
According to the initial time of the frame, the position of master sync signal time slot is determined.
Adopt in this way, by the current band limits for using in base station, in the band limits, determine that base band is believed
Number, frame synchronization is then carried out according to baseband signal and default Zhu's synchronizing sequence, so that it is determined that the initial time of frame, and then more
The accurate position for quickly determining master sync signal time slot.
It is described in the band limits that base station is presently using according to other in which example, it is determined that for carrying out frame
The step of baseband signal of synchronization, specifically includes：
In the band limits that base station is presently using, the signal of Base Transmitter is received；
The signal of the Base Transmitter is converted into the baseband signal for carrying out frame synchronization.
Adopt in this way, it is possible to high efficiency, accurately obtain baseband signal, be accurate quickly to determine main synchronous letter
Carry out place mat in the position of number time slot.
According to other in which example, described to carry out frame according to the baseband signal and default main synchronizing sequence same
The step of step, initial time for determining frame, specifically includes：
According to the baseband signal and default main synchronizing sequence, maximum correlation peaks are determined；
According to the maximum correlation peaks, the main synchronizing sequence of the corresponding cell of the band limits and main synchronization are determined
The main scrambler position of channel, completes frame synchronization and determines the initial time of frame.
Adopt in this way, it is possible to fast, accurately determine the initial time of frame, be accurately quickly to determine main synchronization
Carry out adequate preparation in the position of signal slot.
Specifically included according to other in which example, the step of the band limits that the acquisition base station is presently using：
The signal of Base Transmitter is monitored in the range of full frequency band, according to the intensity of the signal for listening to, determines what base station was currently in use
Band limits.
Adopt is carrying out full frequency band monitoring in this way, obtains all signals of the base station, then therefrom according to signal intensity
It is determined that the band limits being currently in use, can more accurately obtain the band limits that base station is currently in use, so as to be accurate fast
The ready work in position of the determination master sync signal time slot of speed.
The embodiment of the present invention monitors the transmission signal of base station in the range of full frequency band, and the intensity according to signal determines base station just
In the band limits for using, within this range, frame synchronization is carried out according to baseband signal and default main synchronizing sequence, determine frame
Initial time, so that it is determined that the position of master sync signal time slot.
And for the strong random interfering signal of master sync signal slot transmission, the search such as cut-out user equipment such as mobile terminal
The process of network, or for master sync signal slot transmission puppet master sync signal, influence UE searches for the process of network.The mistake
Journey includes determining the master sync signal position of base station by various listening modes, and the various user equipment searches networks that cut off
Random interfering signal and the various pseudo- master sync signals obtained by master sync signal time shift.
The embodiment of the present invention can effectively reduce the power of FDD-LTE signal shielding equipment, reduce the radiation to human body, while
Master sync signal time slot hair of the signal shielding method provided in an embodiment of the present invention only in the band limits that base station is currently in use
Interference signal is penetrated, after master sync signal is disturbed, user equipment just cannot obtain down-going synchronous with base station, that is, user sets
It is standby to search network so as to be communicated.Therefore, method provided in an embodiment of the present invention, can obtain more preferable letter
Number shield effectiveness.
According to one of which implementation method of the present invention, as shown in Fig. 2 the present embodiment discloses a kind of signal shielding device of automobile, bag
Include：
Frequency range determining unit 201, for obtaining the band limits that base station is presently using；
Slot determining unit 202, for the band limits being presently using according to base station, obtains master sync signal time slot
Position；
Interference signal transmitter unit 203, for launching interference signal according to the position of the master sync signal time slot.
Signal shielding device of automobile provided in an embodiment of the present invention by determining the band limits that base station is currently in use, and in the base
The position of master sync signal time slot is determined in the band limits that station is currently in use, because the mobile terminals such as user equipment such as mobile phone are
The downstream signal that base station sends is received in master sync signal time slot, and then obtains the down-going synchronous with base station, and user equipment
It is also simultaneously the preamble sequence for sending request Stochastic accessing to base station in master sync signal time slot.Thus, in the main synchronization
Signal slot launches interference signal, may be such that user equipment cannot search network, while cannot proper communication, therefore the device
Enhance the shield effectiveness to signal.Also, the device is due to only in master sync signal slot transmission interference signal, rather than
Whole frequency range persistently launches interference signal, therefore reduces the power of signal shielding equipment, can energy saving, and reduce to human body
Radiation.
The embodiment of the present invention proposes one kind and accurately disturbs master sync signal, so as to realize the side of signal shielding function
Case, can simplify signal shielding equipment, can effectively reduce the power of signal shielding equipment, reduce the radiation to human body, and obtain foot
Enough good signal shielding effects.At present, for network formats such as traditional 2G, 3G, carry out checking dry using traditional frequency-division section
The pattern disturbed realizes signal shielding.For the network of TD-LTE standards, using it is existing in special time slot DwPTS (under
Row pilot time slot) and UpPTS (uplink pilot time slot) synchronize and disturb so as to realize signal shielding function.For FDD-
LTE standards networking, determines the band limits that base station is currently in use；In the band limits, the position of master sync signal is determined；
In the master sync signal slot transmission interference signal.The signal shielding device of automobile that the present embodiment is provided is mainly for FDD-LTE systems
Formula network.
According to one of example, the Slot determining unit is specifically included：
For in the band limits that is presently using in base station, it is determined that the mould of the baseband signal for carrying out frame synchronization
Block；
For carrying out frame synchronization according to the baseband signal and default main synchronizing sequence, the initial time of frame is determined
Module；And
For the initial time according to the frame, the position module of master sync signal time slot is determined.
Adopt in this way, by the current band limits for using in base station, in the band limits, determine that base band is believed
Number, frame synchronization is then carried out according to baseband signal and default Zhu's synchronizing sequence, so that it is determined that the initial time of frame, and then more
The accurate position for quickly determining master sync signal time slot.
According to other in which example, in the band limits for being presently using in base station, it is determined that be used for into
The module of the baseband signal of row frame synchronization is specifically included：
For in the band limits that is presently using in base station, receiving the module of the signal of Base Transmitter；And
Module for the signal of the Base Transmitter to be converted into the baseband signal for carrying out frame synchronization.
Adopt in this way, it is possible to high efficiency, accurately obtain baseband signal, be accurate quickly to determine main synchronous letter
Carry out place mat in the position of number time slot.
It is same for carrying out frame according to the baseband signal and default main synchronizing sequence according to other in which example
Step, determines that the module of the initial time of frame is specifically included：
For according to the baseband signal and default main synchronizing sequence, determining the module of maximum correlation peaks；And
For according to the maximum correlation peaks, determining main synchronizing sequence and the master of the corresponding cell of the band limits
The main scrambler position of synchronizing channel, completes frame synchronization and determines the module of the initial time of frame.
Adopt in this way, it is possible to fast, accurately determine the initial time of frame, be accurately quickly to determine main synchronization
Carry out adequate preparation in the position of signal slot.
According to other in which example, the frequency range determining unit is specifically included：For monitoring base in the range of full frequency band
Stand transmitting signal, according to the intensity of the signal for listening to, determine the module of the band limits that base station is currently in use.
Adopt is carrying out full frequency band monitoring in this way, obtains all signals of the base station, then therefrom according to signal intensity
It is determined that the band limits being currently in use, can more accurately obtain the band limits that base station is currently in use, so as to be accurate fast
The ready work in position of the determination master sync signal time slot of speed.
The embodiment of the present invention monitors the transmission signal of base station in the range of full frequency band, and the intensity according to signal determines base station just
In the band limits for using, within this range, frame synchronization is carried out according to baseband signal and default main synchronizing sequence, determine frame
Initial time, so that it is determined that the position of master sync signal time slot.
And for the strong random interfering signal of master sync signal slot transmission, the search such as cut-out user equipment such as mobile terminal
The process of network, or for master sync signal slot transmission puppet master sync signal, influence UE searches for the process of network.The mistake
Journey includes determining the master sync signal position of base station by various listening modes, and the various user equipment searches networks that cut off
Random interfering signal and the various pseudo- master sync signals obtained by master sync signal time shift.
The embodiment of the present invention can effectively reduce the power of FDD-LTE signal shielding equipment, reduce the radiation to human body, while
Master sync signal time slot hair of the signal shielding device of automobile provided in an embodiment of the present invention only in the band limits that base station is currently in use
Interference signal is penetrated, after master sync signal is disturbed, user equipment just cannot obtain down-going synchronous with base station, that is, user sets
It is standby to search network so as to be communicated.Therefore, device provided in an embodiment of the present invention, can obtain more preferable letter
Number shield effectiveness.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
Specific implementation of the invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should be all considered as belonging to of the invention
Protection domain.
Claims (10)
1. a kind of signal shielding method, it is characterised in that including：
Obtain the band limits that base station is presently using；
According to the band limits that base station is presently using, the position of master sync signal time slot is obtained；
Position transmitting interference signal according to the master sync signal time slot.
2. method according to claim 1, it is characterised in that the band limits being presently using according to base station,
The step of position for obtaining master sync signal time slot, specifically includes：
In the band limits that base station is presently using, it is determined that the baseband signal for carrying out frame synchronization；
Frame synchronization is carried out according to the baseband signal and default main synchronizing sequence, the initial time of frame is determined；
According to the initial time of the frame, the position of master sync signal time slot is determined.
3. method according to claim 2, it is characterised in that described in the band limits that base station is presently using,
It is determined that specifically including the step of for the baseband signal for carrying out frame synchronization：
In the band limits that base station is presently using, the signal of Base Transmitter is received；
The signal of the Base Transmitter is converted into the baseband signal for carrying out frame synchronization.
4. method according to claim 2, it is characterised in that described according to the baseband signal and default main synchronization
Sequence carries out frame synchronization, specifically includes the step of the initial time for determining frame：
According to the baseband signal and default main synchronizing sequence, maximum correlation peaks are determined；
According to the maximum correlation peaks, the main synchronizing sequence and primary synchronization channel of the corresponding cell of the band limits are determined
Main scrambler position, completes frame synchronization and determines the initial time of frame.
5. method according to claim 1, it is characterised in that the band limits that the acquisition base station is presently using
Step is specifically included：The signal of Base Transmitter is monitored in the range of full frequency band, according to the intensity of the signal for listening to, base is determined
The band limits that station is currently in use.
6. a kind of signal shielding device of automobile, it is characterised in that including：
Frequency range determining unit, for obtaining the band limits that base station is presently using；
Slot determining unit, for the band limits being presently using according to base station, obtains the position of master sync signal time slot；
Interference signal transmitter unit, for launching interference signal according to the position of the master sync signal time slot.
7. device according to claim 6, it is characterised in that the Slot determining unit is specifically included：
For in the band limits that is presently using in base station, it is determined that the module of the baseband signal for carrying out frame synchronization；
For carrying out frame synchronization according to the baseband signal and default main synchronizing sequence, the mould of the initial time of frame is determined
Block；And
For the initial time according to the frame, the position module of master sync signal time slot is determined.
8. device according to claim 7, it is characterised in that the band limits for being presently using in base station
It is interior, it is determined that the module of the baseband signal for carrying out frame synchronization is specifically included：
For in the band limits that is presently using in base station, receiving the module of the signal of Base Transmitter；And
Module for the signal of the Base Transmitter to be converted into the baseband signal for carrying out frame synchronization.
9. device according to claim 7, it is characterised in that for according to the baseband signal and default main synchronization
Sequence carries out frame synchronization, determines that the module of the initial time of frame is specifically included：
For according to the baseband signal and default main synchronizing sequence, determining the module of maximum correlation peaks；And
For according to the maximum correlation peaks, determining the main synchronizing sequence of the corresponding cell of the band limits and main synchronization
The main scrambler position of channel, completes frame synchronization and determines the module of the initial time of frame.
10. device according to claim 6, it is characterised in that the frequency range determining unit is specifically included：For in full range
The signal of Base Transmitter is monitored in segment limit, according to the intensity of the signal for listening to, the frequency range model that base station is currently in use is determined
The module enclosed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209337.9A CN106685574A (en) | 2016-12-23 | 2016-12-23 | Signal shielding method and device |
| PCT/CN2017/087069 WO2018113199A1 (en) | 2016-12-23 | 2017-06-02 | Signal shielding method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209337.9A CN106685574A (en) | 2016-12-23 | 2016-12-23 | Signal shielding method and device |
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| Publication Number | Publication Date |
|---|---|
| CN106685574A true CN106685574A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611209337.9A Pending CN106685574A (en) | 2016-12-23 | 2016-12-23 | Signal shielding method and device |
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|---|---|
| CN (1) | CN106685574A (en) |
| WO (1) | WO2018113199A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018113199A1 (en) * | 2016-12-23 | 2018-06-28 | 上海斐讯数据通信技术有限公司 | Signal shielding method and apparatus |
| CN108988980A (en) * | 2017-05-31 | 2018-12-11 | 深圳世纪天成通讯设备开发有限公司 | A kind of frequency slot transmitting management method and system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010252A (en) * | 2019-12-04 | 2020-04-14 | 杭州恒生数字设备科技有限公司 | Method for conducting broadband subsection guiding shielding on digital transmission equipment |
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| CN106685574A (en) * | 2016-12-23 | 2017-05-17 | 上海斐讯数据通信技术有限公司 | Signal shielding method and device |
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| CN102769904A (en) * | 2012-04-26 | 2012-11-07 | 重庆重邮信科通信技术有限公司 | Method and device for capturing terminal main synchronization signals in LTE (long term evolution) system |
| CN103634067A (en) * | 2013-10-24 | 2014-03-12 | 长沙宝庸通信科技有限公司 | Communication signal jammer and realization method thereof |
| CN104158619A (en) * | 2014-08-07 | 2014-11-19 | 中国科学院信息工程研究所 | LTE (Long Term Evolution) signal shielding method and system based on CRS (Central Reservation System) |
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| WO2018113199A1 (en) * | 2016-12-23 | 2018-06-28 | 上海斐讯数据通信技术有限公司 | Signal shielding method and apparatus |
| CN108988980A (en) * | 2017-05-31 | 2018-12-11 | 深圳世纪天成通讯设备开发有限公司 | A kind of frequency slot transmitting management method and system |
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