CN106130672A - Interference detection method and device - Google Patents
Interference detection method and device Download PDFInfo
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- CN106130672A CN106130672A CN201610384121.XA CN201610384121A CN106130672A CN 106130672 A CN106130672 A CN 106130672A CN 201610384121 A CN201610384121 A CN 201610384121A CN 106130672 A CN106130672 A CN 106130672A
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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
- H04B17/345—Interference values
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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
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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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
- H04B17/3911—Fading models or fading generators
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Abstract
The open interference detection method of the embodiment of the present invention and device, relate to mobile communication technology field, disturb LTE or the LTE interference to WIFI for detecting WIFI.Described method includes herein below, obtains the maximum transmission power of interference source signal transmitter, the standard isolation between transmitting antenna and reception antenna；Simulate the standard isolation between described transmitting antenna and described reception antenna；When interference source signal transmitter launches signal with described maximum transmission power, detection receiving sensitivity of disturbed object under conditions of described standard isolation.Interfering between WIFI and LTE can be detected by this method simply and easily.
Description
Technical field
The present embodiments relate to moving communicating field, particularly relate to interference detection method and device.
Background technology
Along with the arrival of forth generation mobile communication technology, various new techniques constantly produce and are applied, and radio frequency resource is outstanding
It is to be becoming tight band resource day, and Radio frequency interference phenomenon is the most increasingly severe in the mobile communication network, the research of interference problem
Would is that among in weight.Air interference refers to generation in wireless communication procedure, causes the useful signal quality of reception to decline, damages
The state done harm to or hinder and the fact.Mobile communications network there is the most different reasons all can cause the product of Radio frequency interference phenomenon
Raw, such as frequency planning or frequency select incorrect, transmitter radio-frequency performance index not meet standard, cell parameter definition
Improper, base station antenna height or elevation angle design is unreasonable, in city building to the reflection of electromagnetic wave, electromagnetic compatibility (EMC)
Poor performance and malicious interference.The interference of mobile communication system mainly has: the interference of co-channel interference, adjacent frequency, Intermodulation Interference and obstruction
Interference.
It is identical with the carrier frequency of useful signal that co-channel interference refers to the carrier frequency of garbage signal, and to receiving co-channel useful letter
Number receiver interfere.Due to useful signal and co-channel interference signal in same channel, also pass through amplifier and filtering
The process of device, all of useful signal can not be distinguished from the signal received by receiver, say, that receiver will
Can not reduce useful signal.The interference that adjacent frequency interference causes in referring to jamming adjacent channel receiver pass-band is referred to as adjacent frequency and does
Disturb.When the power attenuation of launching of adjacent channel transmitter is leaked in the frequency acceptance band of receiver, together with useful signal not
Device is received by receiver after filtering so that the receiver bit error rate becomes big, may result in adjacent frequency interference.Intermodulation Interference: two or
Multiple signals interact in the nonlinear circuit or propagation medium of sending and receiving letter machine and produce the interference that new frequency component causes
It is referred to as Intermodulation Interference.When obstruction interference refers to receive faint useful signal, by receiving in the radio circuit band of frequency both sides
The interference of one high reject signal, is referred to as blocking interference.When interference signal is less, receiver sensitivity can be made to reduce, disturb signal
Time bigger, amplitude squeezing phenomenon can be produced, even result in communication disruption.
In realizing process of the present invention, inventor finds that WIFI (WLAN) signal is to LTE (Long Term
Evolution, the Long Term Evolution of universal mobile communications technology, the most present 4G communication system) interference of signal is mainly with frequency
Interference.Generally, WIFI operating frequency is 2400MHZ, and its neighbouring frequency range is very close to the working frequency range of LTE, so WIFI signal
Easily LTE signal is caused co-channel interference.In the R&D process of mobile communication equipment, it usually needs LTE is believed by detection WIFI signal
Number annoyance level, in order to the relevant design of mobile communication equipment is provided and instructs, it is ensured that the quality of product.Therefore examine in reality
Detection method and the device of a kind of more convenient and effective interference is needed during survey.
Summary of the invention
For more convenient and detection the interfering of WIFI with LTE, the Interference Detection described in the embodiment of the present invention effectively
Method and device have employed following technical scheme.
A kind of technical scheme that the embodiment of the present invention uses is: a kind of interference detection method, and described method includes: obtain dry
The maximum transmission power disturbing source signal transmitter, the standard isolation launched between antenna and reception antenna；Simulate described transmitting
Standard isolation between antenna and described reception antenna；When interference source signal transmitter launches letter with described maximum transmission power
Number time, detection under conditions of described standard isolation the receiving sensitivity of disturbed object.
The technical scheme that the embodiment of the present invention uses also includes: by the emission maximum merit of interference source signal transmitter of decaying
Rate simulates the described standard isolation between described transmitting antenna and described reception antenna.
The technical scheme that the embodiment of the present invention uses also includes: obtain the standard receiving sensitivity of described disturbed object；
Described detection receiving sensitivity of disturbed object under conditions of described standard isolation includes: at described standard isolation
Under the conditions of, detect the receiving sensitivity numerical value of described disturbed object；
The described receiving sensitivity numerical value of described disturbed object receives relative to the described standard of described disturbed object
Sensitivity number is the least, then show that described interference source is the least on the impact of described disturbed object.
The technical scheme that the embodiment of the present invention uses also includes: described method also includes: described method also includes described dry
Disturbing source signal transmitter is WIFI signal transmitter；Described disturbed object is LTE signal receiver；Described transmitting antenna is
WIFI antenna；Described reception antenna is LTE antenna.
The technical scheme that the embodiment of the present invention uses also includes: described method also includes: described method also includes described dry
Disturbing source signal transmitter is LTE signal transmitter；Described disturbed object is WIFI signal receiver；Described transmitting antenna is
LTE antenna；Described reception antenna is WIFI antenna.
Another technical scheme that the embodiment of the present invention uses is: a kind of interference detecting apparatus, and described device includes:
First acquisition module, for obtaining the maximum transmission power of interference source signal transmitter；
Second acquisition module, for obtaining the standard isolation launched between antenna and reception antenna；
Isolation analog module, for simulating the described standard isolation between described transmitting antenna and described reception antenna
Degree；
And sensitivity technique module, for launching letter when described interference source signal transmitter with described maximum transmission power
Number time, detection under conditions of described standard isolation the receiving sensitivity of disturbed object.
Another technical scheme that the embodiment of the present invention uses also includes: described isolation analog module is by decay interference source
Signal power simulates the described standard isolation between described transmitting antenna and described reception antenna.
Another technical scheme that the embodiment of the present invention uses also includes: described device also includes the 3rd acquisition module, is used for
Obtain the standard receiving sensitivity of described disturbed object；Described sensitivity technique module is additionally operable to, at described standard isolation
Under conditions of, detect the receiving sensitivity numerical value of described disturbed object；
The described receiving sensitivity numerical value of described disturbed object receives relative to the described standard of described disturbed object
Sensitivity number is the least, then show that described interference source is the least on the impact of described disturbed object.
Another technical scheme that the embodiment of the present invention uses also includes: described interference source signal transmitter is that WIFI signal is sent out
Penetrate machine；Described disturbed object is LTE signal receiver；Described transmitting antenna is WIFI antenna；Described reception antenna is LTE days
Line.
Another technical scheme that the embodiment of the present invention uses also includes: described interference source signal transmitter is that LTE signal is sent out
Penetrate machine；Described disturbed object is WIFI signal receiver；Described transmitting antenna is LTE antenna；Described reception antenna is WIFI
Antenna.
The another technical scheme that the embodiment of the present invention uses is: a kind of interference detecting apparatus, and described device includes: the first letter
Number deciliter module, secondary signal deciliter module, isolation analog module, sensitivity technique module；Described isolation analog module
It is connected with described first signal deciliter module and described secondary signal deciliter module；Described first signal deciliter module is used for decile
Interference source signal or for the reception signal of described interference source signal with disturbed object is synthesized, described secondary signal
Deciliter module is for carrying out synthesizing or be used for decile interference source by the reception signal of described interference source signal Yu disturbed object
Signal；Described isolation analog module is for the standard isolation between analog transmissions antenna and reception antenna；Described sensitivity
Detection module, for when described interference source signal transmitter with maximum transmission power launch signal time, detect described standard every
The receiving sensitivity of described disturbed object under conditions of degree.
The another technical scheme that the embodiment of the present invention uses also includes: described signal deciliter module includes power splitter, synthesis
Device and signaling switch；Described signaling switch is connected with described power splitter and described synthesizer respectively；Described power splitter is used for
Dividing the signal of described interference source, described synthesizer is for the reception signal by the signal of described interference source with described disturbed object
Synthesizing, described signaling switch uses described power splitter or described synthesizer for switching as required.
The another technical scheme that the embodiment of the present invention uses also includes: during detection, described first signal deciliter module and institute
State secondary signal deciliter module and connect instrumentation interface and equipment under test interface respectively.
The another technical scheme that the embodiment of the present invention uses also includes: described isolation analog module includes attenuator and end
Mouth signaling switch；Described attenuator is connected with described port signal switch；Described attenuator is by decay interference source signal power
Simulate the described standard isolation between described transmitting antenna and described reception antenna；Described port signal switch is used for switching
The connectivity port of described attenuator.
The another technical scheme that the embodiment of the present invention uses also includes: when detection WIFI signal is to the interference of LTE signal,
Described first signal deciliter module switches to the described power splitter of use by described signaling switch, described WIFI signal is carried out
Point；Described secondary signal deciliter module by described signaling switch switch to use described synthesizer, by described WIFI signal with
Described LTE signal synthesizes.
The another technical scheme that the embodiment of the present invention uses also includes: when detection LTE signal is to the interference of WIFI signal,
Described secondary signal deciliter module uses described power splitter by the switching of described signaling switch, and described LTE signal is carried out decile；
Described first signal deciliter module uses described synthesizer, by described LTE signal with described by the switching of described signaling switch
WIFI signal synthesizes.
Compared with prior art, present invention have the advantage that
The embodiment of the present invention is by the standard isolation between analog transmissions antenna and reception antenna, when interference source transmitter
During with maximum power transmission signal, the receiving sensitivity of the disturbed object under the conditions of detection Current standards isolation, thus simple
Change the detection process that WIFI with LTE interferes.
Accompanying drawing explanation
Fig. 1 is the step schematic diagram of method described in first embodiment of the invention.
Fig. 2 is the step signal that method detection WIFI signal described in second embodiment of the invention receives interference to LTE signal
Figure.
Fig. 3 is the step signal that method detection LTE signal described in second embodiment of the invention receives interference to WIFI signal
Figure.
Fig. 4 is the step schematic diagram of method described in third embodiment of the invention.
Fig. 5 is the schematic diagram of device described in first embodiment of the invention.
Fig. 6 is the connection signal that device detection LTE signal and WIFI signal described in first embodiment of the invention interfere
Figure.
Fig. 7 is the schematic diagram of device described in second embodiment of the invention.
Fig. 8 is the connection signal that device detection LTE signal and WIFI signal described in second embodiment of the invention interfere
Figure.
Fig. 9 is the schematic diagram of device described in third embodiment of the invention.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing
Give presently preferred embodiments of the present invention.But, the present invention can realize in many different forms, however it is not limited to institute herein
The embodiment described.On the contrary, providing the purpose of these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the present invention
The implication that technical staff is generally understood that is identical.The term used the most in the description of the invention is intended merely to describe tool
The purpose of the embodiment of body, it is not intended that in limiting the present invention.
With reference to Fig. 1, it it is the step schematic diagram of method described in first embodiment of the invention.Described in first embodiment of the invention
Method includes herein below:
Step S1: obtain the maximum transmission power of interference source signal transmitter, the mark between transmitting antenna and reception antenna
The standard receiving sensitivity of quasi-isolation and disturbed object.
Described interference source signal transmitter is positioned at measured terminal, including WIFI signal transmitter and LTE signal transmitter.
Described measured terminal is the terminal units such as smart mobile phone.
When detection WIFI signal is to the interference of LTE signal, described interference source signal transmitter is WIFI signal transmitter.
When detection LTE signal is to the interference of WIFI signal, described interference source signal transmitter is LTE signal transmitter.
Standard isolation between transmitting antenna and reception antenna refers to WIFI signal and disturbs each other with LTE signal
Isolation during degree minimum.
When detection WIFI signal is to the interference of LTE signal, described disturbed object is LTE signal receiver.Work as detection
When LTE signal is to the interference of WIFI signal, described disturbed object is WIFI signal receiver.Described LTE signal receiver and
WIFI signal receiver is positioned at measured terminal.
The standard receiving sensitivity of disturbed object refers under the conditions of standard isolation, the reception of disturbed object
Sensitivity.
If the maximum transmission power of interference source signal transmitter it is known that the standard launched between antenna and reception antenna every
From degree it is known that disturbed object standard receiving sensitivity it is also known that, then step S1 can be omitted.
Step S2: the standard isolation between analog transmissions antenna and reception antenna.
Come between analog transmissions antenna and reception antenna by the maximum transmission power of decay interference source signal transmitter
Standard isolation.The performance number that the performance number of maximum transmission power decay is corresponding with this standard isolation is suitable.
Step S3: when interference source signal transmitter is with maximum power transmission signal, detection is at described standard isolation
Under the conditions of the receiving sensitivity of disturbed object.
Detection to the receiving sensitivity of disturbed object, refers mainly to detect the receiving sensitivity numerical value of disturbed object.
Under normal circumstances, the receiving sensitivity numerical value of disturbed object should receive sensitive less than the standard of disturbed object
Number of degrees value, and the receiving sensitivity numerical value of disturbed object is the least relative to the standard receiving sensitivity numerical value of disturbed object,
Then the signal of interference source is the least on the signal reception impact of disturbed object.
The standard receiving sensitivity of disturbed object is disturbed under the conditions of standard isolation for the disturbed object of indicator
Degree, its unit is usually dBm (dBm).
Method described in first embodiment of the invention, is isolated by the standard between analog transmissions antenna and reception antenna
Degree, when interference source transmitter is with maximum power transmission signal, the disturbed object under the conditions of detection Current standards isolation
Receiving sensitivity, thus simplify the detection process that WIFI with LTE interferes.
With reference to Fig. 2, it is that described in second embodiment of the invention, method detection WIFI signal receives the step disturbed to LTE signal
Schematic diagram.Method described in second embodiment of the invention includes herein below:
Step A1: obtain the maximum transmission power of WIFI signal transmitter, standard between WIFI antenna and LTE antenna every
From degree and the standard receiving sensitivity of LTE signal receiver.
If the maximum transmission power of WIFI signal transmitter is it is known that the standard between WIFI antenna and LTE antenna is isolated
Degree it is known that LTE signal receiver standard receiving sensitivity it is also known that, then step A1 can be omitted.
Step A2: the standard isolation between simulation WIFI antenna and LTE antenna.
Step A3: when WIFI signal transmitter is with maximum power transmission signal, detects the bar at described standard isolation
The receiving sensitivity of disturbed object under part.
The receiving sensitivity numerical value of the LTE signal receiver detected receives spirit relative to the standard of LTE signal receiver
Sensitivity numerical value is the least, then WIFI signal is the least on the signal reception impact of LTE signal receiver.
With reference to Fig. 3, it is that described in second embodiment of the invention, method detection LTE signal receives the step disturbed to WIFI signal
Schematic diagram.Method described in second embodiment of the invention also includes herein below:
Step B1: obtain the maximum transmission power of LTE signal transmitter, standard between WIFI antenna and LTE antenna every
From degree and the standard receiving sensitivity of WIFI signal receiver.
If the maximum transmission power of LTE signal transmitter is it is known that standard isolation between WIFI antenna and LTE antenna
It is known that the standard receiving sensitivity of WIFI signal receiver it is also known that, then step B1 can be omitted.
Step B2: the standard isolation between simulation WIFI antenna and LTE antenna.
Step B3: when LTE signal transmitter is with maximum power transmission signal, detects the condition at described standard isolation
Under the receiving sensitivity of disturbed object.
The receiving sensitivity numerical value of the WIFI signal receiver detected receives relative to the standard of WIFI signal receiver
Sensitivity number is the least, then LTE signal is the least on the signal reception impact of WIFI signal receiver.
Method described in second embodiment of the invention, by the standard isolation between simulation WIFI antenna and LTE antenna,
Under the conditions of standard isolation, detect WIFI signal WIFI signal is received by impact and the LTE signal of LTE signal receiver
The impact of machine, thus can more convenient and effectively detect interfering of WIFI with LTE.
With reference to Fig. 4, it it is the step schematic diagram of method described in third embodiment of the invention.Described in third embodiment of the invention
Method includes herein below:
Step C1: obtain the maximum transmission power of interference source signal transmitter, the mark between transmitting antenna and reception antenna
The standard receiving sensitivity of quasi-isolation and disturbed object.
Described interference source signal transmitter includes WIFI signal transmitter and LTE signal transmitter.
When detection WIFI signal is to the interference of LTE signal, described interference source signal transmitter is WIFI signal transmitter,
Described transmitting antenna is WIFI antenna, and described reception antenna is LTE antenna.When detection LTE signal is to the interference of WIFI signal,
Described interference source signal transmitter is LTE signal transmitter, and described transmitting antenna is LTE antenna, and described reception antenna is WIFI
Antenna.
Step C2: the standard isolation between analog transmissions antenna and reception antenna.
Come between analog transmissions antenna and reception antenna by the maximum transmission power of decay interference source signal transmitter
Standard isolation.The performance number that the performance number of maximum transmission power decay is corresponding with this standard isolation is suitable.
Step C3: when interference source signal transmitter is with maximum power transmission signal, detection is at described standard isolation
Under the conditions of the receiving sensitivity of disturbed object.
When detecting WIFI signal to the interference of LTE signal, if be detected that the receiving sensitivity of LTE signal receiver
Numerical value is the least relative to the standard receiving sensitivity numerical value of LTE signal receiver, then the WIFI signal letter to LTE signal receiver
Number receive impact the least.
When detecting LTE signal to the interference of WIFI signal, if be detected that the reception of WIFI signal receiver sensitive
Number of degrees value is the least relative to the standard receiving sensitivity numerical value of WIFI signal receiver, then LTE signal is to WIFI signal receiver
Signal receive impact the least.
Method described in third embodiment of the invention, by obtaining the maximum transmission power of interference source signal transmitter, sending out
Penetrate the standard receiving sensitivity of the standard isolation between antenna and reception antenna and disturbed object, by analog transmissions sky
Standard isolation between line and reception antenna, when interference source transmitter is with maximum power transmission signal, detects Current standards
The receiving sensitivity of the disturbed object under the conditions of isolation, thus permissible before detecting the receiving sensitivity of disturbed object
Obtain the maximum transmission power of interference source signal transmitter, the standard isolation launched between antenna and reception antenna and done
Disturb the standard receiving sensitivity of object.
With reference to Fig. 5, it it is the schematic diagram of device described in first embodiment of the invention.Device bag described in first embodiment of the invention
Include the first signal deciliter module 210, isolation analog module 220 and secondary signal deciliter module 230.Described isolation simulation mould
Block 220 is connected with the first signal deciliter module 210 and secondary signal deciliter module 230 respectively.During detection, the first signal division and modulus
Block 210 connects instrumentation interface and equipment under test interface, and secondary signal deciliter module 230 also connects instrumentation interface and quilt
Measurement equipment interface.
When detecting WIFI signal and LTE signal being received interference, described first signal deciliter module 210 is for decile WIFI
Signal, described isolation analog module 220 for simulating the standard isolation between WIFI antenna and LTE antenna, described second
Signal deciliter module 230 is for synthesizing WIFI signal with LTE signal.
When detecting LTE signal and WIFI signal being received interference, described secondary signal deciliter module 230 is for decile LTE
Signal, described isolation analog module 220 for simulating the standard isolation between WIFI antenna and LTE antenna, described first
Signal deciliter module 210 is for synthesizing WIFI signal with LTE signal.
With reference to Fig. 6, it it is the connection that interferes with WIFI signal of device detection LTE signal described in first embodiment of the invention
Schematic diagram.Described first signal deciliter module 210 connects the WIFI adapter 101 of WIFI comprehensive test instrument and terminal 100, and described second
Signal deciliter module 230 connects the LTE adapter 102 of LTE comprehensive test instrument and terminal 100.
Described WIFI comprehensive test instrument can be used for detecting transmitting power, the reception of WIFI signal receiver of WIFI signal transmitter
Sensitivity etc..The described instrumentation being connected with the first signal deciliter module 210 is not limited to WIFI comprehensive test instrument.Described LTE combines
Survey instrument and can be used for detecting transmitting power, the receiving sensitivity etc. of LTE signal receiver of LTE signal transmitter.Described with second
The instrumentation that signal deciliter module 230 connects is not limited to LTE comprehensive test instrument.Described WIFI adapter 101 is used for connecting WIFI
Signal transmitter and WIFI signal receiver.Described LTE adapter 102 is used for connecting LTE signal transmitter and LTE signal receives
Machine.
When detecting WIFI signal and LTE signal being received interference, WIFI signal transmitter and LTE signal receiver are opened,
WIFI signal receiver and LTE signal transmitter are closed.
When detecting WIFI signal and LTE signal being received interference, by the emission maximum merit of WIFI signal transmitter of decaying
Rate simulates the standard isolation between WIFI antenna and LTE antenna.
When detecting LTE signal and WIFI signal being received interference, WIFI signal transmitter and LTE signal receiver are closed,
WIFI signal receiver and LTE signal transmitter are opened.
When detecting LTE signal and WIFI signal being received interference, by the maximum transmission power of LTE signal transmitter of decaying
Simulate the standard isolation between WIFI antenna and LTE antenna.
Device described in first embodiment of the invention, by the first signal deciliter module 210 and secondary signal deciliter module
230 signals carrying out decile interference source or the reception signal of the signal of interference source with disturbed object is synthesized, by every
Simulate the standard isolation between WIFI antenna and LTE antenna from degree analog module 220, thus simplify detection device.
With reference to Fig. 7, it it is the schematic diagram of device described in second embodiment of the invention.Device bag described in second embodiment of the invention
Include the first signal deciliter module 210, isolation analog module 220 and secondary signal deciliter module 230.Described isolation simulation mould
Block 220 is connected with the first signal deciliter module 210 and secondary signal deciliter module 230 respectively.During detection, the first signal division and modulus
Block 210 connects instrumentation interface and equipment under test interface, and secondary signal deciliter module 230 also connects instrumentation interface and quilt
Measurement equipment interface.
Described first signal deciliter module 210 includes power splitter 211, synthesizer 212 and signaling switch 213.Described signal
Switch 213 is connected with power splitter 211 and synthesizer 212 respectively.Described power splitter 211 is for the signal of decile interference source, described
Synthesizer 212 is for synthesizing the signal of interference source with the reception signal of disturbed object, and described signaling switch 213 is used for
Switching uses power splitter 211 or synthesizer 212 as required.
Described isolation analog module 220 includes attenuator 221 and port signal switch 222.Attenuator 221 is believed with port
Number switch 222 be connected.Described attenuator 221 is simulated between WIFI antenna and LTE antenna by decay interference source signal power
Standard isolation.Owing to the decay power of interference source signal of attenuator 221 has unipolarity, described port signal switch 222
For switching the connectivity port of attenuator 221.
Described secondary signal deciliter module 230 includes synthesizer 231, power splitter 232 and signaling switch 233.Described signal
Switch 233 is connected with synthesizer 231 and power splitter 232 respectively.Described power splitter 232 is for the signal of decile interference source, described
Synthesizer 231 is for synthesizing the signal of interference source with the reception signal of disturbed object, and described signaling switch 233 is used for
Switching uses synthesizer 231 or power splitter 232 as required.
With reference to Fig. 8, it it is the connection that interferes with WIFI signal of device detection LTE signal described in second embodiment of the invention
Schematic diagram.The signaling switch 213 of device described in second embodiment of the invention is connected with the WIFI adapter 101 of terminal 100, and merit is divided
Device 211 is connected with WIFI comprehensive test instrument respectively with synthesizer 212.The signaling switch 233 of described device is connected with the LTE of terminal 100
Device 102 is connected, and synthesizer 231 is connected with LTE comprehensive test instrument respectively with power splitter 232.
When detecting WIFI signal and LTE signal being received interference, WIFI signal transmitter and LTE signal receiver are opened,
WIFI signal receiver and LTE signal transmitter are closed.The switching of described signaling switch 213 uses power splitter 211, i.e. signaling switch
Connection between 213 and synthesizer 212 disconnects.The switching of described signaling switch 233 use synthesizer 231, i.e. signaling switch 233 with
Connection between power splitter 232 disconnects.
When detecting LTE signal and WIFI signal being received interference, WIFI signal transmitter and LTE signal receiver are closed,
WIFI signal receiver and LTE signal transmitter are opened.The switching of described signaling switch 213 uses synthesizer 212, i.e. signaling switch
Connection between 213 and power splitter 211 disconnects.The switching of described signaling switch 233 use power splitter 232, i.e. signaling switch 233 with
Connection between synthesizer 231 disconnects.
Device described in invention the second embodiment, is switched as required by signaling switch 213 and makes diligent point
Device 211 or synthesizer 212, switched use synthesizer 231 or power splitter 232 as required, pass through port by signaling switch 233
Signaling switch 222 switches the connectivity port of attenuator 221 so that the device described in second embodiment of the invention can detect WIFI
The reception of LTE signal is disturbed by signal, also can detect LTE signal and disturb the reception of WIFI signal, thus improve WIFI with
The detection efficiency that LTE interferes.
With reference to Fig. 9, it it is the schematic diagram of device described in third embodiment of the invention.Device bag described in third embodiment of the invention
Include the first acquisition module 20, for obtaining the maximum transmission power of interference source signal transmitter；Second acquisition module 30, is used for obtaining
Take the standard isolation launched between antenna and reception antenna；Isolation analog module 60, be used for simulating described transmitting antenna with
Standard isolation between described reception antenna；And sensitivity technique module 50, for when described interference source signal transmitter
When launching signal with described maximum transmission power, the reception of the disturbed object under the conditions of detection Current standards isolation is sensitive
Degree.
Described isolation analog module 60 is simulated described transmitting antenna by decay interference source signal power and is connect with described
Receive the standard isolation between antenna.
Described device also includes the 3rd acquisition module 40, for obtaining the standard receiving sensitivity of described disturbed object.
Described sensitivity technique module 50 is additionally operable to, and under the conditions of Current standards isolation, detects the reception spirit of described disturbed object
Sensitivity numerical value.The described receiving sensitivity numerical value of described disturbed object receives relative to the described standard of described disturbed object
Sensitivity number is the least, then show that described interference source is the least on the impact of described disturbed object.
When detecting WIFI signal and LTE signal being received interference, described interference source signal transmitter is that WIFI signal is launched
Machine；Described disturbed object is LTE signal receiver；Described transmitting antenna is WIFI antenna；Described reception antenna is LTE days
Line.
When detecting LTE signal and WIFI signal being received interference, described interference source signal transmitter is that LTE signal is launched
Machine；Described disturbed object is WIFI signal receiver；Described transmitting antenna is LTE antenna；Described reception antenna is WIFI days
Line.
Device described in invention the 3rd embodiment, obtains interference source signal by the first acquisition module 20 and launches
The maximum transmission power of machine；The standard isolation launched between antenna and reception antenna is obtained by the second acquisition module 30；Logical
Cross the 3rd acquisition module 40 and obtain the standard receiving sensitivity of described disturbed object.Thus described device can obtain interference source
The maximum transmission power of signal transmitter, the standard isolation launched between antenna and reception antenna and the mark of disturbed object
Quasi-receiving sensitivity.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (16)
1. an interference detection method, it is characterised in that described method includes: obtain the emission maximum of interference source signal transmitter
Power, the standard isolation launched between antenna and reception antenna；Simulate between described transmitting antenna and described reception antenna
Described standard isolation；When interference source signal transmitter launches signal with described maximum transmission power, detection is in described standard
The receiving sensitivity of disturbed object under conditions of isolation.
Method the most according to claim 1, it is characterised in that described method also includes: sent out by decay interference source signal
Penetrate the maximum transmission power of machine to the described standard isolation simulating between described transmitting antenna and described reception antenna.
Method the most according to claim 2, it is characterised in that described method also includes: obtain described disturbed object
Standard receiving sensitivity；Described detection receiving sensitivity of disturbed object under conditions of described standard isolation includes:
Under conditions of described standard isolation, detect the receiving sensitivity numerical value of described disturbed object；
The described receiving sensitivity numerical value of described disturbed object receives sensitive relative to the described standard of described disturbed object
Number of degrees value is the least, then show that described interference source is the least on the impact of described disturbed object.
The most according to the method in any one of claims 1 to 3, it is characterised in that described method also includes: described interference source
Signal transmitter is WIFI signal transmitter；Described disturbed object is LTE signal receiver；Described transmitting antenna is WIFI days
Line；Described reception antenna is LTE antenna.
The most according to the method in any one of claims 1 to 3, it is characterised in that described method also includes: described interference source
Signal transmitter is LTE signal transmitter；Described disturbed object is WIFI signal receiver；Described transmitting antenna is LTE days
Line；Described reception antenna is WIFI antenna.
6. an interference detecting apparatus, it is characterised in that described device includes:
First acquisition module, for obtaining the maximum transmission power of interference source signal transmitter；
Second acquisition module, for obtaining the standard isolation launched between antenna and reception antenna；
Isolation analog module, for simulating the described standard isolation between described transmitting antenna and described reception antenna；
And sensitivity technique module, for launching signal when described interference source signal transmitter with described maximum transmission power
Time, detection receiving sensitivity of disturbed object under conditions of described standard isolation.
Device the most according to claim 6, it is characterised in that described isolation analog module is by decay interference source signal
Power simulates the described standard isolation between described transmitting antenna and described reception antenna.
Device the most according to claim 7, it is characterised in that described device also includes: the 3rd acquisition module, is used for obtaining
The standard receiving sensitivity of described disturbed object；Described sensitivity technique module is additionally operable to, at the bar of described standard isolation
Under part, detect the receiving sensitivity numerical value of described disturbed object；
The described receiving sensitivity numerical value of described disturbed object receives sensitive relative to the described standard of described disturbed object
Number of degrees value is the least, then show that described interference source is the least on the impact of described disturbed object.
9. according to the device according to any one of claim 6 to 8, it is characterised in that: described interference source signal transmitter is
WIFI signal transmitter；Described disturbed object is LTE signal receiver；Described transmitting antenna is WIFI antenna；Described reception
Antenna is LTE antenna.
10. according to the device according to any one of claim 6 to 8, it is characterised in that: described interference source signal transmitter is
LTE signal transmitter；Described disturbed object is WIFI signal receiver；Described transmitting antenna is LTE antenna；Described reception sky
Line is WIFI antenna.
11. 1 kinds of interference detecting apparatus, it is characterised in that described device includes: the first signal deciliter module, secondary signal deciliter
Module, isolation analog module, sensitivity technique module；Described isolation analog module and described first signal deciliter module and
Described secondary signal deciliter module is connected；Described first signal deciliter module is for decile interference source signal or for by described
Interference source signal synthesizes with the reception signal of disturbed object, and described secondary signal deciliter module is for by described interference source
Signal carries out synthesizing or for decile interference source signal with the reception signal of disturbed object；Described isolation analog module is used
Standard isolation between analog transmissions antenna and reception antenna；Described sensitivity technique module, for when described interference source
When signal transmitter launches signal with maximum transmission power, detection described disturbed object under conditions of described standard isolation
Receiving sensitivity.
12. devices according to claim 11, it is characterised in that described signal deciliter module includes power splitter, synthesizer
And signaling switch；Described signaling switch is connected with described power splitter and described synthesizer respectively；Described power splitter is used for decile
The signal of described interference source, described synthesizer is for entering the signal of described interference source with the reception signal of described disturbed object
Row synthesis, described signaling switch uses described power splitter or described synthesizer for switching as required.
13. devices according to claim 12, it is characterised in that during detection, described first signal deciliter module and described
Secondary signal deciliter module connects instrumentation interface and equipment under test interface respectively.
14. according to the device described in claim 11 or 12, it is characterised in that described isolation analog module include attenuator and
Port signal switchs；Described attenuator is connected with described port signal switch；Described attenuator is by decay interference source signal merit
Rate simulates the described standard isolation between described transmitting antenna and described reception antenna；Described port signal switch is used for cutting
Change the connectivity port of described attenuator.
15. devices according to claim 14, it is characterised in that when detection WIFI signal is to the interference of LTE signal, institute
State the first signal deciliter module and switch to the described power splitter of use by described signaling switch, described WIFI signal is carried out
Point；Described secondary signal deciliter module by described signaling switch switch to use described synthesizer, by described WIFI signal with
Described LTE signal synthesizes.
16. devices according to claim 14, it is characterised in that when detection LTE signal is to the interference of WIFI signal, institute
State secondary signal deciliter module and use described power splitter by the switching of described signaling switch, described LTE signal is carried out decile；Institute
State the first signal deciliter module and use described synthesizer by the switching of described signaling switch, by described LTE signal and described WIFI
Signal synthesizes.
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