CN110518991A - Passive intermodulation self-sensing method and device - Google Patents
Passive intermodulation self-sensing method and device Download PDFInfo
- Publication number
- CN110518991A CN110518991A CN201910695754.6A CN201910695754A CN110518991A CN 110518991 A CN110518991 A CN 110518991A CN 201910695754 A CN201910695754 A CN 201910695754A CN 110518991 A CN110518991 A CN 110518991A
- Authority
- CN
- China
- Prior art keywords
- passive intermodulation
- value
- link
- backward power
- radiofrequency signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
Abstract
The embodiment of the present invention provides a kind of passive intermodulation self-sensing method and device, and wherein method includes: to obtain passive intermodulation group of frequencies；Based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal；When the transmitting link persistently sends the radiofrequency signal, the backward power of receives link is detected as passive intermodulation value；Passive intermodulation detection is carried out based on the passive intermodulation value.Method and apparatus provided in an embodiment of the present invention, radiofrequency signal is persistently sent by control transmitting link, the backward power of receives link is detected simultaneously, carry out passive intermodulation detection, test exclusion is carried out without extraneous instrument and meter, it can be realized and the passive intermodulation of external load is checked in real time, greatly improve the realization efficiency and ease of passive intermodulation detection and investigation, provide convenience for equipment positioning analysis and the network maintenance of engineer application.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of passive intermodulation self-sensing methods and device.
Background technique
Passive intermodulation (Passive Intermodulation, PIM) refers to and is passed through by two or more frequency contents
Family's product that passive device nonlinear effect generates, frequency are the linear combination of fundamental frequency.When linear combination product is fallen
Enter in the passband of communication control processor, and the combination frequency of linear combination product and useful signal frequency it is close to each other when cause i.e. shape
At interference.
With the continuous planning of mobile communication frequency, high-power transmitter is applied and what receiving sensitivity required constantly mentions
Height, the Intermodulation Interference that the passive intermodulation of wireless communication system generates are got worse, how to realize passive intermodulation real-time detection and
Investigation, it is also therefore more and more of interest by operator.
Current wireless communication system itself directly can not carry out detection and localization to passive intermodulation, need by external instrument
Instrument carries out test exclusion, brings very big difficulty and obstacle for equipment positioning analysis and the network maintenance of engineer application.
Summary of the invention
The embodiment of the present invention provides a kind of passive intermodulation self-sensing method and device, to solve existing wireless communication system
System must be detected by external instrument instrument into passive intermodulation, the big problem of difficulty in engineering realization.
In a first aspect, the embodiment of the present invention provides a kind of passive intermodulation self-sensing method, comprising:
Obtain passive intermodulation group of frequencies；
Based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal；
When the transmitting link persistently sends the radiofrequency signal, the backward power of receives link is detected as passive mutual
Tone pitch；
Passive intermodulation detection is carried out based on the passive intermodulation value.
Preferably, described to be based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal, specific to wrap
It includes:
It based on the passive intermodulation group of frequencies, controls the transmitting link and sends radiofrequency signal, while adjusting the transmitting
The transmission power of link until the radiofrequency signal is in maximum transmission power state, and controls the transmitting link and persistently sends out
Send the radiofrequency signal.
Preferably, described when the transmitting link persistently sends the radiofrequency signal, detect the reversed function of receives link
Rate is specifically included as passive intermodulation value:
Multiple receives links if it exists, then when the transmitting link persistently sends the radiofrequency signal, detection is every
The backward power of one receives link；
Maximum value is chosen from the backward power of each receives link as passive intermodulation value.
Preferably, described when the transmitting link persistently sends the radiofrequency signal, detect the reversed function of receives link
Rate is specifically included as passive intermodulation value:
When the transmitting link persistently sends the radiofrequency signal, if continuing the reception that preset duration detects
The backward power of link is stablized within a preset range, then using the backward power after stabilization as the passive intermodulation value.
Preferably, described when the transmitting link persistently sends the radiofrequency signal, detect the reversed function of receives link
Rate is specifically included as passive intermodulation value:
When the transmitting link persistently sends the radiofrequency signal, if it is pre- to detect that the backward power of receives link is less than
If backward power threshold value detects again after then increasing gain, preset reversely until the backward power detected is more than or equal to
Power threshold, using the backward power as passive intermodulation value.
Preferably, described when the transmitting link persistently sends the radiofrequency signal, if detecting the anti-of receives link
It is less than default backward power threshold value to power, is then detected again after increasing gain, until the backward power detected is greater than
Equal to default backward power threshold value, using the backward power as passive intermodulation value, further includes:
If after the gain is adjusted to maximum, the backward power detected is less than default backward power threshold value, then by institute
Backward power is stated to make an uproar value the bottom of as.
Preferably, described that passive intermodulation self-test is carried out based on the passive intermodulation value, it specifically includes:
If the passive intermodulation value is in default passive intermodulation section, confirm that the passive intermodulation value is normal；Otherwise,
Confirm that the passive intermodulation value is abnormal；
Wherein, the passive intermodulation value detected when the default passive intermodulation section is based on booting determines.
Second aspect, the embodiment of the present invention provide a kind of passive intermodulation self-test device, comprising:
Frequency point acquiring unit, for obtaining passive intermodulation group of frequencies；
Transmitting unit, for being based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal；
Inverse detection unit, for detecting receives link when the transmitting link persistently sends the radiofrequency signal
Backward power is as passive intermodulation value；
Passive intermodulation unit, for carrying out passive intermodulation self-test based on the passive intermodulation value.
The third aspect, the embodiment of the present invention provide a kind of electronic equipment, including processor, communication interface, memory and total
Line, wherein processor, communication interface, memory complete mutual communication by bus, and processor can call in memory
Logical order, to execute as provided by first aspect the step of method.
Fourth aspect, the embodiment of the present invention provide a kind of non-transient computer readable storage medium, are stored thereon with calculating
Machine program is realized as provided by first aspect when the computer program is executed by processor the step of method.
A kind of passive intermodulation self-sensing method and device provided in an embodiment of the present invention are persistently sent out by control transmitting link
Send radiofrequency signal, while detecting the backward power of receives link, carry out passive intermodulation detection, without extraneous instrument and meter into
Row test excludes, and can be realized and is checked in real time the passive intermodulation of external load, greatly improves passive intermodulation detection and investigation
Realization efficiency and ease, for engineer application equipment positioning analysis and network maintenance provide convenience.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow diagram of passive intermodulation self-sensing method provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the wireless communication system of the single uplink receiving link provided in the prior art；
Fig. 3 be another embodiment of the present invention provides passive intermodulation self-sensing method flow diagram；
Fig. 4 is the structural schematic diagram of the wireless communication system of the double uplink receiving links provided in the prior art；
Fig. 5 is the flow diagram for the passive intermodulation self-sensing method that further embodiment of this invention provides；
Fig. 6 is the structural schematic diagram of passive intermodulation self-test device provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Current wireless communication system itself directly can not carry out detection and localization to passive intermodulation, need by external instrument
Instrument carries out test exclusion, brings very big difficulty and obstacle for equipment positioning analysis and the network maintenance of engineer application.It is right
This, is the embodiment of the invention provides a kind of passive intermodulation self-sensing method, by wireless communication system to external load, for example (,) it is non-thread
Property passive system or the passive intermodulation of antenna voluntarily detected, without external instrument instrument, can be realized it is passive mutually
The detection and localization of tune.Fig. 1 is the flow diagram of passive intermodulation self-sensing method provided in an embodiment of the present invention, as shown in Figure 1,
This method comprises:
Step 110, passive intermodulation group of frequencies is obtained.
Herein, passive intermodulation group of frequencies refers to the frequency values that can generate passive intermodulation interference, that is, emits the radio frequency of link TX
The frequency of signal falls on or close to receives link RX frequency band, and it is spuious to influence system reception to become the fixed interference received in band
The group of frequencies of sensitivity.Passive intermodulation frequency values can be predetermined, and be also possible to the frequency according to wireless communication system
Range computation obtains falling into the group of frequencies of receives link, and the present invention is not especially limit this.
Step 120, it is based on passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal.
Specifically, after obtaining passive intermodulation group of frequencies, the radiofrequency signal of passive intermodulation group of frequencies respective frequencies is generated, and
Control transmitting link persistently sends the radiofrequency signal.
Step 130, when transmitting link persistently sends radiofrequency signal, the backward power of receives link is detected as passive mutual
Tone pitch.
Specifically, while control transmitting link persistently sends passive intermodulation group of frequencies corresponding radiofrequency signal, detection
The backward power of receives link at this time, and the backward power that will test is as passive intermodulation value.Herein, backward power is sent out
The frequency for penetrating the radiofrequency signal of link is fallen on or the fixed spuious letter of interference in receives link frequency band, the receives link band of formation
Number power.
Step 140, passive intermodulation detection is carried out based on passive intermodulation value.
Specifically, after detection obtains passive intermodulation value, passive intermodulation inspection can be carried out according to the size of passive intermodulation value
It surveys, whether the passive intermodulation to judge current external load end is normal rationally, if there are abnormal passive intermodulations to influence network fortune
Battalion.
Method provided in an embodiment of the present invention persistently sends radiofrequency signal by control transmitting link, while detecting reception
The backward power of link carries out passive intermodulation detection, carries out test exclusion without extraneous instrument and meter, can be realized externally
The passive intermodulation for connecing load checks in real time, greatly improves the realization efficiency and ease of passive intermodulation detection and investigation, is work
Equipment positioning analysis and the network maintenance of Cheng Yingyong is provided convenience.
Based on the above embodiment, in this method, step 120 is specifically included: being based on passive intermodulation group of frequencies, is controlled transmitting chain
Road sends radiofrequency signal, while adjusting the transmission power of transmitting link, until radiofrequency signal is in maximum transmission power state, and
Control transmitting link persistently sends radiofrequency signal.
Specifically, the corresponding radiofrequency signal of passive intermodulation group of frequencies is being generated, and during sending by transmitting link,
It needs the transmission power to transmitting link to be modulated, until transmission power reaches peak power output, hereafter keeps the transmitting
Power, so that radiofrequency signal can continue to send under maximum transmission power state.
Method provided in an embodiment of the present invention, by adjusting the transmission power of transmitting link, so that radiofrequency signal continues
It is sent under maximum transmission power state, the accuracy of the backward power thus measured is higher, and then executes passive intermodulation
Detection accuracy is higher.
Based on any of the above-described embodiment, in this method, step 130 specifically includes: multiple receives links if it exists are then being sent out
When penetrating link and persistently sending radiofrequency signal, the backward power of each receives link is detected；From the backward power of each receives link
Middle selection maximum value is as passive intermodulation value.
Specifically, in wireless communication system, any extraneous load may correspond to one or more receives links, if only corresponding to
One receives link, then the backward power that detects the backward power of the receives link, and will test is as passive intermodulation value；
If corresponding multiple receives links, are directed to any receives link, detect the backward power of the receives link, thus obtain multiple connect
Receive the corresponding backward power of link.Then, from the backward power of above-mentioned multiple receives links, selected value is maximum reversed
Power, as passive intermodulation value.
Based on any of the above-described embodiment, in this method, step 130 is specifically included: persistently sending radio frequency letter in transmitting link
Number when, stablize within a preset range, after stabilization if continuing the backward power of receives link that preset duration detects
Backward power is as passive intermodulation value.
Herein, it persistently detects this during transmitting link persistently sends radiofrequency signal for any receives link and connects
Receive the backward power of link.If the fluctuation of the backward power for the receives link that detection obtains in preset duration is in preset range
It is interior, then it is assumed that the backward power of the receives link is in stable state, using the backward power after stabilization as passive intermodulation value.Its
In, preset duration is preset Stability Observation duration, and preset range is to be confirmed as the backward power maximum of stable state
Fluctuation range.
Based on any of the above-described embodiment, in this method, step 130 is specifically included: persistently sending radio frequency letter in transmitting link
Number when, if detecting, the backward power of receives link is less than default backward power threshold value, detected again after increasing gain, until
The backward power detected is more than or equal to default backward power threshold value, using backward power as passive intermodulation value.
Specifically, presetting backward power threshold value is the detectable minimum value of preset backward power.In backward power
Detection process in, if the obtained backward power of detection is less than default backward power threshold value, or even fail detection obtain it is reversed
Power then needs to be modified the power detection of system.In the embodiment of the present invention, it is to the mode that power detection is modified
The gain for increasing power detection re-starts the detection of backward power after increasing gain, if the backward power that detection obtains
More than or equal to default backward power threshold value, then the backward power that will test stops power detection as passive intermodulation value
Amendment, no longer increase gain；If detecting obtained backward power still less than default backward power threshold value, continue to increase increasing
Benefit, and re-start the detection of backward power.
Herein, when executing the increase of gain, gain can gradually be increased according to the step-length of default settings.For example, can be with
1dB is set by step-length, backward power threshold value is preset when the backward power that detection obtains is less than, then gain is increased into 1dB, laid equal stress on
It is new to carry out backward power detection.
Based on any of the above-described embodiment, in this method, step 130 further include: if after gain is adjusted to maximum, what is detected is anti-
It is less than default backward power threshold value to power, then makes an uproar value using backward power the bottom of as.
Specifically, during being modified to power detection, gradually increase gain, until by gain adjustment to most
Greatly, if the backward power detected at this time is still less than default backward power threshold value, illustrate that wireless communication system emits link
Reversed passive intermodulation to receives link there is no interference, the backward power detected is that the bottom of receives link is made an uproar value.
Based on any of the above-described embodiment, in this method, step 140 is specifically included: if passive intermodulation value be in preset it is passive
In intermodulation section, then confirm that passive intermodulation value is normal；Otherwise, confirmation passive intermodulation value is abnormal；Wherein, passive intermodulation section is preset
The passive intermodulation value detected when being based on booting determines.
It specifically, can be by preset in normal when carrying out passive intermodulation detection based on passive intermodulation value
Whether the section that the passive intermodulation value of state is constituted, i.e., default passive intermodulation interval judgement passive intermodulation value are normal.Herein pre-
If passive intermodulation section is established on the basis of being the passive intermodulation value detected in booting.For example, can be in booting
Increase the upper limit of the performance number of default settings as default passive intermodulation section on the basis of the passive intermodulation value that detection obtains, such as
The passive intermodulation value that fruit real-time detection obtains is greater than the upper limit, then confirms that the passive intermodulation value is abnormal.
Based on any of the above-described embodiment, Fig. 2 is the wireless communication system of the single uplink receiving link provided in the prior art
Structural schematic diagram executed for the modules in control system passive as shown in Fig. 2, be provided with CPU module in the system
Intermodulation self-sensing method, DA is D/A converter module in Fig. 2, and AD is analog-to-digital conversion module.Fig. 3 mentions for another embodiment of the present invention
The flow diagram of the passive intermodulation self-sensing method of confession, as shown in figure 3, this method comprises:
Step 310, in wireless communication system, two paths of signals F1 and F2 acts on external load simultaneously, then emits link pair
Various group of frequencies mF1 ± nF2 comprising F1 and F2 are needed in the radiofrequency signal that should be sent, wherein it has both included the frequency multiplication of F1 and F2,
For example 2F1,3F2 also include the difference frequency of F1 and F2 also comprising F1 and F2's and frequency, for example F1+F2,2F1+2F2, for example 2F2-
F1,2F1-F2.When m ± n is odd number, the transmitting newly generated frequency of link falls on or close to frequency acceptance band, becomes in reception band
Fixed interference it is spuious to influence system reception sensitivity.
Therefore, after wireless communication system booting, CPU module according to the frequency schemes of wireless communication system default settings,
Calculating can produce the two frequency bins value F1 and F2 of 5 ranks or 7 ranks that fall into RX link to get passive intermodulation group of frequencies is arrived.
Step 320, CPU module triggers DA, the corresponding radiofrequency signal of control transmitting link transmissions passive intermodulation group of frequencies.
Step 330, by FPGA (Field-Programmable Gate Array, field programmable gate array)
DPD (Digital Pre-Distortion, digital pre-distortion) module detects that transmitting link is sent at the power of radiofrequency signal
When maximum sends power rating, CPU module controls D/A converter module DA and keeps the power for sending signal at this time.If detecting
When the power that reflection link sends radiofrequency signal does not reach maximum transmission power rating, then operation S320 is executed, until reaching
Maximum sends power rating.Meanwhile starting the power self-test judgement of uplink receiving link.
Step 340, power self-test judgement is carried out to receives link by the power detection module in FPGA.Wherein specific packet
It includes:
Step 341, starting is detected for the reversed passive intermodulation of receives link；
Step 342, FPGA calculates backward power value P based on the base band data that analog-to-digital conversion module AD is detected；
Step 343, CPU module reads backward power value P, and judges backward power value P and default backward power threshold value
Size: if backward power value P is greater than default backward power threshold value, using backward power value P as passive intermodulation value；Otherwise, it holds
Row step 344；
Step 344, CPU module start modification model: CPU module control adjustable gain module yield value be with unit dB
Stepping gradually increases, and is performed simultaneously operating procedure 341,342 and 343, i.e., CPU module control adjustable gain module is every adjusts one
Secondary, FPGA real-time detection is primary, until the backward power value P that detection obtains is greater than default backward power threshold value, terminates self-test
Journey.
Based on any of the above-described embodiment, Fig. 4 is the wireless communication system of the double uplink receiving links provided in the prior art
Structural schematic diagram executed for the modules in control system passive as shown in figure 4, be provided with CPU module in the system
Intermodulation self-sensing method, DA is D/A converter module in Fig. 4, and AD is analog-to-digital conversion module, and double uplink receiving links are respectively RX1
And RX2.Fig. 5 is the flow diagram for the passive intermodulation self-sensing method that further embodiment of this invention provides, as shown in figure 5, should
Method includes:
Step 410, after wireless communication system booting, CPU module is according to the frequency sides of wireless communication system default settings
Case, calculating can produce the two frequency bins value F1 and F2 of 5 ranks or 7 ranks that fall into RX link to get passive intermodulation group of frequencies is arrived.
Step 420, CPU module triggers DA, the corresponding radiofrequency signal of control transmitting link transmissions passive intermodulation group of frequencies.
Step 430, detect that transmitting link sends the power of radiofrequency signal in maximum hair by the DPD module in FPGA
When sending power rating, CPU module controls D/A converter module DA and keeps the power for sending signal at this time.If detecting reflection link
When the power of transmission radiofrequency signal does not reach maximum transmission power rating, then operation S420 is executed, until reaching maximum transmission
Power rating.Meanwhile starting the power self-test judgement of uplink receiving link.
Step 440, power self-test judgement is carried out to receives link RX1 and RX2 by the power detection module in FPGA.Its
In specifically include:
The reversed passive intermodulation detection for receives link RX1 and RX2 is respectively started in step 441 and 444；
Step 442 and 445, FPGA calculate backward power value based on the base band data that analog-to-digital conversion module AD1 is detected
P1 calculates backward power value P2 based on the base band data that AD2 is detected；
Step 443 and 446, CPU module read backward power value P1 and P2 respectively；
Step 447, CPU module compares P1 and P2, and therefrom chooses the larger value, i.e., poor is extremely used as wireless communication system
Passive intermodulation value.
Method provided in an embodiment of the present invention persistently sends radiofrequency signal by control transmitting link, while detecting reception
The backward power of link carries out passive intermodulation detection, carries out test exclusion without extraneous instrument and meter, can be realized externally
The passive intermodulation for connecing load checks in real time, greatly improves the realization efficiency and ease of passive intermodulation detection and investigation, is work
Equipment positioning analysis and the network maintenance of Cheng Yingyong is provided convenience.
Based on any of the above-described embodiment, Fig. 6 is that the structure of passive intermodulation self-test device provided in an embodiment of the present invention is shown
Be intended to, as shown in fig. 6, the device include frequency point acquiring unit 610, transmitting unit 620, inverse detection unit 630 and it is passive mutually
Adjust unit 640；
Wherein, frequency point acquiring unit 610 is for obtaining passive intermodulation group of frequencies；
Transmitting unit 620 is used to be based on the passive intermodulation group of frequencies, and control transmitting link persistently sends radiofrequency signal；
Inverse detection unit 630 is used for when the transmitting link persistently sends the radiofrequency signal, detects receives link
Backward power as passive intermodulation value；
Passive intermodulation unit 640 is used to carry out passive intermodulation self-test based on the passive intermodulation value.
Device provided in an embodiment of the present invention persistently sends radiofrequency signal by control transmitting link, while detecting reception
The backward power of link carries out passive intermodulation detection, carries out test exclusion without extraneous instrument and meter, can be realized externally
The passive intermodulation for connecing load checks in real time, greatly improves the realization efficiency and ease of passive intermodulation detection and investigation, is work
Equipment positioning analysis and the network maintenance of Cheng Yingyong is provided convenience.
Based on any of the above-described embodiment, in the device, transmitting unit 620 is specifically used for:
It based on the passive intermodulation group of frequencies, controls the transmitting link and sends radiofrequency signal, while adjusting the transmitting
The transmission power of link until the radiofrequency signal is in maximum transmission power state, and controls the transmitting link and persistently sends out
Send the radiofrequency signal.
Based on any of the above-described embodiment, in the device, inverse detection unit 630 is specifically used for:
Multiple receives links if it exists, then when the transmitting link persistently sends the radiofrequency signal, detection is every
The backward power of one receives link；
Maximum value is chosen from the backward power of each receives link as passive intermodulation value.
Based on any of the above-described embodiment, in the device, inverse detection unit 630 is specifically used for:
When the transmitting link persistently sends the radiofrequency signal, if continuing the reception that preset duration detects
The backward power of link is stablized within a preset range, then using the backward power after stabilization as the passive intermodulation value.
Based on any of the above-described embodiment, in the device, inverse detection unit 630 is specifically used for:
When the transmitting link persistently sends the radiofrequency signal, if it is pre- to detect that the backward power of receives link is less than
If backward power threshold value detects again after then increasing gain, preset reversely until the backward power detected is more than or equal to
Power threshold, using the backward power as passive intermodulation value.
Based on any of the above-described embodiment, in the device, inverse detection unit 630 is also used to:
If after the gain is adjusted to maximum, the backward power detected is less than default backward power threshold value, then by institute
Backward power is stated to make an uproar value the bottom of as.
Based on any of the above-described embodiment, in the device, passive intermodulation unit 640 is specifically used for:
If the passive intermodulation value is in default passive intermodulation section, confirm that the passive intermodulation value is normal；Otherwise,
Confirm that the passive intermodulation value is abnormal；
Wherein, the passive intermodulation value detected when the default passive intermodulation section is based on booting determines.
Fig. 7 is the entity structure schematic diagram of electronic equipment provided in an embodiment of the present invention, as shown in fig. 7, the electronic equipment
It may include: processor (processor) 701,702, memory communication interface (Communications Interface)
(memory) 703 and communication bus 704, wherein processor 701, communication interface 702, memory 703 pass through communication bus 704
Complete mutual communication.Processor 701 can call the meter that is stored on memory 703 and can run on processor 701
Calculation machine program, to execute the passive intermodulation self-sensing method of the various embodiments described above offer, for example, obtain passive intermodulation frequency
Group；Based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal；It is persistently sent in the transmitting link
When the radiofrequency signal, the backward power of receives link is detected as passive intermodulation value；Nothing is carried out based on the passive intermodulation value
Source intermodulation detection.
In addition, the logical order in above-mentioned memory 703 can be realized by way of SFU software functional unit and conduct
Independent product when selling or using, can store in a computer readable storage medium.Based on this understanding, originally
The technical solution of the inventive embodiments substantially part of the part that contributes to existing technology or the technical solution in other words
It can be embodied in the form of software products, which is stored in a storage medium, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes the present invention respectively
The all or part of the steps of a embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk
Etc. the various media that can store program code.
The embodiment of the present invention also provides a kind of non-transient computer readable storage medium, is stored thereon with computer program,
The computer program is implemented to carry out the passive intermodulation self-sensing method of the various embodiments described above offer when being executed by processor, such as
It include: to obtain passive intermodulation group of frequencies；Based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal；
When the transmitting link persistently sends the radiofrequency signal, the backward power of receives link is detected as passive intermodulation value；Base
Passive intermodulation detection is carried out in the passive intermodulation value.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of passive intermodulation self-sensing method characterized by comprising
Obtain passive intermodulation group of frequencies；
Based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal；
When the transmitting link persistently sends the radiofrequency signal, the backward power of receives link is detected as passive intermodulation
Value；
Passive intermodulation detection is carried out based on the passive intermodulation value.
2. passive intermodulation self-sensing method according to claim 1, which is characterized in that described based on the passive intermodulation frequency
Rate group, control transmitting link persistently send radiofrequency signal, specifically include:
It based on the passive intermodulation group of frequencies, controls the transmitting link and sends radiofrequency signal, while adjusting the transmitting link
Transmission power, until the radiofrequency signal is in maximum transmission power state, and controls the transmitting link and persistently send institute
State radiofrequency signal.
3. passive intermodulation self-sensing method according to claim 1, which is characterized in that described to continue in the transmitting link
When sending the radiofrequency signal, the backward power of receives link is detected as passive intermodulation value, is specifically included:
Multiple receives links if it exists detect each institute then when the transmitting link persistently sends the radiofrequency signal
State the backward power of receives link；
Maximum value is chosen from the backward power of each receives link as passive intermodulation value.
4. passive intermodulation self-sensing method according to claim 1, which is characterized in that described to continue in the transmitting link
When sending the radiofrequency signal, the backward power of receives link is detected as passive intermodulation value, is specifically included:
When the transmitting link persistently sends the radiofrequency signal, if continuing the receives link that preset duration detects
Backward power stablize within a preset range, then using the backward power after stabilization as the passive intermodulation value.
5. passive intermodulation self-sensing method according to claim 1, which is characterized in that described to continue in the transmitting link
When sending the radiofrequency signal, the backward power of receives link is detected as passive intermodulation value, is specifically included:
When the transmitting link persistently sends the radiofrequency signal, if it is default anti-to detect that the backward power of receives link is less than
It to power threshold, is then detected again after increasing gain, until the backward power detected is more than or equal to default backward power
Threshold value, using the backward power as passive intermodulation value.
6. passive intermodulation self-sensing method according to claim 5, which is characterized in that described to continue in the transmitting link
When sending the radiofrequency signal, if detecting, the backward power of receives link is less than default backward power threshold value, increases gain
It detects, until the backward power detected is more than or equal to default backward power threshold value, the backward power is made again afterwards
For passive intermodulation value, further includes:
It, then will be described anti-if after the gain is adjusted to maximum, the backward power detected is less than default backward power threshold value
It makes an uproar value to power the bottom of as.
7. passive intermodulation self-sensing method according to any one of claim 1 to 6, which is characterized in that described to be based on institute
It states passive intermodulation value and carries out passive intermodulation self-test, specifically include:
If the passive intermodulation value is in default passive intermodulation section, confirm that the passive intermodulation value is normal；Otherwise, confirm
The passive intermodulation value is abnormal；
Wherein, the passive intermodulation value detected when the default passive intermodulation section is based on booting determines.
8. a kind of passive intermodulation self-test device characterized by comprising
Frequency point acquiring unit, for obtaining passive intermodulation group of frequencies；
Transmitting unit, for being based on the passive intermodulation group of frequencies, control transmitting link persistently sends radiofrequency signal；
Inverse detection unit, for detecting the reversed of receives link when the transmitting link persistently sends the radiofrequency signal
Power is as passive intermodulation value；
Passive intermodulation unit, for carrying out passive intermodulation self-test based on the passive intermodulation value.
9. a kind of electronic equipment including memory, processor and stores the calculating that can be run on a memory and on a processor
Machine program, which is characterized in that the processor realizes the nothing as described in any one of claims 1 to 7 when executing described program
The step of source intermodulation self-sensing method.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer
The step of passive intermodulation self-sensing method as described in any one of claims 1 to 7 is realized when program is executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695754.6A CN110518991A (en) | 2019-07-30 | 2019-07-30 | Passive intermodulation self-sensing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695754.6A CN110518991A (en) | 2019-07-30 | 2019-07-30 | Passive intermodulation self-sensing method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110518991A true CN110518991A (en) | 2019-11-29 |
Family
ID=68624206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910695754.6A Pending CN110518991A (en) | 2019-07-30 | 2019-07-30 | Passive intermodulation self-sensing method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110518991A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584413A (en) * | 2020-11-13 | 2021-03-30 | 普联国际有限公司 | Wireless communication link self-checking protection method, device, equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870473A (en) * | 2005-10-21 | 2006-11-29 | 华为技术有限公司 | Passive intermodulation testing method of mobile communication base station system |
| CN102546062A (en) * | 2012-02-23 | 2012-07-04 | 华为技术有限公司 | Passive inter-modulation detecting method and equipment as well as antenna |
| CN104244311A (en) * | 2013-06-09 | 2014-12-24 | 中国移动通信集团公司 | Passive intermodulation performance test method and device of antenna feed system |
| US20140378067A1 (en) * | 2013-06-24 | 2014-12-25 | T-Mobile Usa, Inc. | Communication infrastructure interference detection |
| US20150350940A1 (en) * | 2014-05-29 | 2015-12-03 | Aceaxis Limited | Processing of passive intermodulation detection results |
| CN109495127A (en) * | 2018-09-27 | 2019-03-19 | 香港梵行科技有限公司 | Device, method and the application apparatus of adaptive cancellation passive intermodulation signal |
-
2019
- 2019-07-30 CN CN201910695754.6A patent/CN110518991A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870473A (en) * | 2005-10-21 | 2006-11-29 | 华为技术有限公司 | Passive intermodulation testing method of mobile communication base station system |
| CN102546062A (en) * | 2012-02-23 | 2012-07-04 | 华为技术有限公司 | Passive inter-modulation detecting method and equipment as well as antenna |
| CN104244311A (en) * | 2013-06-09 | 2014-12-24 | 中国移动通信集团公司 | Passive intermodulation performance test method and device of antenna feed system |
| US20140378067A1 (en) * | 2013-06-24 | 2014-12-25 | T-Mobile Usa, Inc. | Communication infrastructure interference detection |
| US20150350940A1 (en) * | 2014-05-29 | 2015-12-03 | Aceaxis Limited | Processing of passive intermodulation detection results |
| CN109495127A (en) * | 2018-09-27 | 2019-03-19 | 香港梵行科技有限公司 | Device, method and the application apparatus of adaptive cancellation passive intermodulation signal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584413A (en) * | 2020-11-13 | 2021-03-30 | 普联国际有限公司 | Wireless communication link self-checking protection method, device, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111478737B (en) | Radio frequency test method, device, electronic device and storage medium | |
| JP4416800B2 (en) | Antenna system telemetry monitoring apparatus and method using mobile communication terminal | |
| EP3193465A2 (en) | Configuration sub-system for telecommunication systems | |
| US20130178175A1 (en) | Voltage standing wave ratio detection circuit | |
| CN106899359A (en) | A kind of WIFI module RF calibration method | |
| CN104104455B (en) | Passive intermodulation method for detecting position and device | |
| EP2533360A1 (en) | Method and device for antenna calibration | |
| EP3596850B1 (en) | Locating passive intermodulation fault sources | |
| CN102624471A (en) | Method and device for detecting and repairing abnormity of active antenna channel | |
| CN106685508A (en) | Data transmission method and data transmission device | |
| CN107944312B (en) | Method and device for detecting receiving sensitivity of RFID reader-writer | |
| CN110518991A (en) | Passive intermodulation self-sensing method and device | |
| US11650236B2 (en) | Apparatus and method for measuring voltage standing wave ratio of antenna in wireless communication system | |
| CN102223208B (en) | The optimization method and device of the signal quality parameter of high-speed serial channel | |
| CN114879014A (en) | Radio frequency chip testing method, device, testing equipment, medium and testing system | |
| CN104836614A (en) | Method for testing performance of CATV product | |
| CN115494462A (en) | Phased array radar online automatic amplitude and phase calibration method and storage medium | |
| CN100514888C (en) | Method and device for simulating radio channel | |
| US9813134B1 (en) | Base station and antenna calibration method | |
| EP3641165A1 (en) | Method, device and system for calibrating array antennas | |
| EP3523893B1 (en) | Method and radio network node for determining total radiated power from a plurality of antennas | |
| CN108923872A (en) | A kind of repeater passband fluctuation calibration method and system | |
| CN107294600A (en) | A kind of DPD loop detecting methods and equipment | |
| CN111224723B (en) | Calibration method and system of radio frequency front-end module, electronic equipment and storage medium | |
| CN105517662A (en) | Signal processing apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201027 Address after: 430205 Hubei city of Wuhan province Jiangxia Hidden Dragon Island Tan lake two Road No. 1 Applicant after: Wuhan Hongxin Technology Development Co.,Ltd. Address before: 430073 Hubei province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Applicant before: Wuhan Hongxin Telecommunication Technologies Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191129 |
|
| RJ01 | Rejection of invention patent application after publication |