CN106888063A - The mutual interference detection method of common antenna feeder combiner, system and base station - Google Patents
The mutual interference detection method of common antenna feeder combiner, system and base station Download PDFInfo
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- CN106888063A CN106888063A CN201510929605.3A CN201510929605A CN106888063A CN 106888063 A CN106888063 A CN 106888063A CN 201510929605 A CN201510929605 A CN 201510929605A CN 106888063 A CN106888063 A CN 106888063A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
Abstract
The invention discloses a kind of mutual interference detection method of antenna feeder combiner, system and base station altogether.Methods described includes：Passage to be measured is chosen successively in all passages of antenna feeder combiner altogether to be measured；According to intermodulation principle, judge that each detection frequency of the passage to be measured whether there is intermodulation with each detection frequency of other passages；Judging there is mutual timing, determining whether that intermodulation product is fallen into the reception band of the passage to be measured, if it is determined that falling with, obtaining all intermodulation products and fall into the frequency and the corresponding detection frequency of each intermodulation product received in band.The present invention can be effectively to co-space feedback system mutual interference detect.
Description
Technical field
It is more particularly to a kind of to be total to the mutual interference detection method of antenna feeder combiner, be the present invention relates to the communications field
System and base station.
Background technology
With the increase of the fast-developing and communication service data of wireless communication technology, operator deployment is various
The communication network of standard, base station covering radius reduces, and base station number increases severely, and antenna feeder can not only have altogether between base station
The reduction antenna amount of effect, the difficulty that makes to arrange net is greatly reduced.
But, as base station number increases, inter base station interference problem also becomes increasingly conspicuous, especially in common antenna feeder system
Disturb particularly evident in system, and existing single antenna intermodulation detection can only detect the self-interference of single antenna feeder, nothing
Method is applied to the mutual Interference Detection of co-space feedback system.
The content of the invention
In order to solve the problems, such as the mutual Interference Detection of co-space feedback system, present invention aim at a kind of antenna feeder altogether of offer
The mutual interference detection method of combiner, system and base station.
According to an aspect of the present invention, the present invention provides a kind of antenna feeder mutual interference detection method of combiner altogether,
Including：
Passage to be measured is chosen successively in all passages of antenna feeder combiner altogether to be measured；
According to intermodulation principle, each detection frequency of the passage to be measured and each detection of other passages are judged
Frequency whether there is intermodulation；
Judging there is mutual timing, determining whether that intermodulation product is fallen into the reception band of the passage to be measured,
If it is determined that falling with, obtain all intermodulation products and fall into the frequency and each intermodulation product received in band
Corresponding detection frequency.
Further, each detection frequency and each detection frequency of passage other described for judging the passage to be measured be
It is not no the step of there is intermodulation, specifically include：
Step A, it is assumed that the antenna feeder combiner altogether has n passage, wherein, the passage to be measured is f1,
Other described passages are respectively f2、f3、……、fn, n >=2；The duplexing start-stop of each passage is obtained respectively
Frequency；
Step B, it is assumed that f2In have i detection frequency；With f1Duplex starting frequency for traversal starting point, with
The duplex cut-off frequency of f1 is traversal terminal, presets x=1, travels through f1Each detection frequency, f is judged successively1
Each detection frequency and f2X-th detection frequency whether there is intermodulation；As traversal f1After end, set
X=x+1, travels through f again1Each detection frequency, f is judged successively1Each detection frequency and f2X-th inspection
Frequency measurement point whether there is intermodulation, until x=i；
Step C, based on the judgment model of step B, judges f successively1Each detection frequency respectively with f3、……、
fnEach detection frequency whether there is intermodulation.
Further, as traversal f1After end, x=x+1 is set, f is traveled through again1Each detection frequency the step of,
Specifically include：
If it is determined that f1Each detection frequency and f2X-th detection frequency there is mutual timing, acquisition falls at first
The corresponding detection frequency of intermodulation product received in band of the passage to be measured；
As traversal f1After end, x=x+1 is set, it is traversal to set the corresponding detection frequency of intermodulation product
Starting point travels through f again1Each detection frequency.
Further, each detection frequency and each detection frequency of passage other described for judging the passage to be measured be
It is no the step of there is intermodulation before, also include：
The duplex starting frequency with each passage is initial detection frequency, with the institute of each passage
It is the detection frequency for terminating to state duplex cut-off frequency；
It is traversal starting point with the initial detection frequency, is traversal terminal with the detection frequency of the termination,
It is traversal step-length with default frequency grid, determines each detection frequency of each passage.
Further, all intermodulation products are obtained and falls into the frequency and each intermodulation product pair received in band
After the step of detection frequency answered, also include：
The all intermodulation products for obtaining are fallen into the frequency received in band corresponding with each intermodulation product
Detection frequency be sent to the corresponding base station of the passage to be measured so that the base station calculate transmission power and
Receiving power；
The transmission power and the receiving power are obtained from the base station, according to the transmission power and described
Receiving power calculates mutual tone pitch.
Further, the topological structure identical antenna feeder network topology of antenna feeder combiner system together is set up；
The antenna feeder combiner altogether to be measured is chosen in the antenna feeder network topology.
According to an aspect of the present invention, the present invention also provides a kind of antenna feeder mutual interference detection method of combiner altogether,
Including：
All intermodulation products are obtained from webmaster side fall into the frequency and each intermodulation product received in band
Corresponding detection frequency；
Each intermodulation product is fallen in the frequency received in band as launching frequency, and by each intermodulation
The corresponding detection frequency of product is used as reception frequency；
In the launching frequency transmission signal, and signal is received in the reception frequency, and calculate transmitting
Power and receiving power；
The transmission power and the receiving power are sent to webmaster side, so that webmaster lateral root is according to the transmitting
Power and the receiving power calculate mutual tone pitch.
According to an aspect of the present invention, the present invention also provides a kind of antenna feeder mutual Interference Detection system of combiner altogether,
Including：
Selecting module, for choosing passage to be measured successively in all passages of antenna feeder combiner altogether to be measured；
Frequency processing module, for according to intermodulation principle, judge the passage to be measured each detection frequency and its
Each detection frequency of his passage whether there is intermodulation；
Communication module, for judging there is mutual timing, determines whether that intermodulation product falls into described to be measured logical
In the reception band in road, if it is determined that fall with, obtain all intermodulation products fall into the frequency received in band and
The corresponding detection frequency of each intermodulation product.
Further, the frequency processing module includes that frequency acquiring unit, the first judging unit and n-th judge
Unit；
The frequency processing module, for assuming that the antenna feeder combiner altogether has n passage, wherein, it is described
Passage to be measured is f1, other described passages are respectively f2、f3、……、fn, n >=2；And obtain each respectively
The duplexing start-stop frequency of the passage；
First judging unit, for assuming f2In have i detection frequency；With f1Duplex starting frequency
It is traversal starting point, with f1Duplex cut-off frequency for traversal terminal, preset x=1, travel through f1Each detection frequently
Point, judges f successively1Each detection frequency and f2X-th detection frequency whether there is intermodulation；As traversal f1
After end, x=x+1 is set, f is traveled through again1Each detection frequency, f is judged successively1Each detection frequency with
f2X-th detection frequency whether there is intermodulation, until x=i；
N-th judging unit, for the judgment model based on the first judging unit, judges f successively1It is each
Detection frequency respectively with f3、……、fnEach detection frequency whether there is intermodulation.
Further, first judging unit is in traversal f1After end, x=x+1 is set, f is traveled through again1's
During each detection frequency in the following way：
If it is determined that each detection frequency of f1 has mutual timing with x-th detection frequency of f2, acquisition falls at first
Enter the corresponding detection frequency of intermodulation product received in band of the passage to be measured；
As traversal f1After end, x=x+1 is set, it is traversal to set the corresponding detection frequency of intermodulation product
Starting point travels through f again1Each detection frequency.
Further, the system also includes configuration module, for the duplex starting frequency of each passage
Point is initial detection frequency, and the duplex cut-off frequency with each passage is the detection frequency for terminating；
It is traversal starting point with the initial detection frequency, is traversal terminal with the detection frequency of the termination,
It is traversal step-length with default frequency grid, determines each detection frequency of each passage.
Further, the system also includes computing module；
The communication module, be additionally operable to by obtain all intermodulation products fall into it is described receive band in frequency and
Each intermodulation product is corresponding to detect that frequency is sent to the corresponding base station of the passage to be measured, so that the base
Station calculates transmission power and receiving power；
The computing module, for obtaining the transmission power and the receiving power from the base station, according to
The transmission power and the receiving power calculate mutual tone pitch.
Further, the system also includes configuration module, the topology for setting up antenna feeder combiner system together
Structure identical antenna feeder network topology；
The antenna feeder combiner altogether to be measured is chosen in the antenna feeder network topology.
According to an aspect of the present invention, the present invention also provides a kind of base station, including：
Frequency receiving unit, the frequency received in band is fallen into for obtaining all intermodulation products from webmaster side
Detection frequency corresponding with each intermodulation product；
Execution unit, for each intermodulation product being fallen in the frequency received in band as launching frequency, with
And using the corresponding detection frequency of each intermodulation product as receiving frequency；And in launching frequency transmitting
Signal, and signal is received in the reception frequency, and calculate transmission power and receiving power；
Communication unit, for the transmission power and the receiving power to be sent into webmaster side, so that webmaster
Lateral root calculates mutual tone pitch according to the transmission power and the receiving power.
The present invention has the beneficial effect that：The present invention can be effectively to co-space feedback system mutual interference detect.
Brief description of the drawings
Fig. 1 is a kind of common mutual interference detection method of antenna feeder combiner for webmaster side in the embodiment of the present invention
Flow chart；
Fig. 2 is the structural representation of co-space feedback system in the embodiment of the present invention；
Fig. 3 is a kind of common mutual interference detection method of antenna feeder combiner for base station side in the embodiment of the present invention
Flow chart；
Fig. 4 is the antenna feeder network topology schematic diagram of antenna feeder combining system in the embodiment of the present invention；
Fig. 5 is the structural representation of the common mutual Interference Detection of antenna feeder combiner and base station in the embodiment of the present invention.
Specific embodiment
In order to solve the problems, such as the mutual Interference Detection of co-space feedback system, the invention provides a kind of antenna feeder combiner altogether
Mutual interference detection method, system and base station, below in conjunction with accompanying drawing and embodiment, traveling one are entered to the present invention
Step is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
Limit the present invention.
Embodiment one
The embodiment of the present invention provides a kind of antenna feeder mutual interference detection method of combiner altogether, for webmaster side, including：
S101, passage to be measured is chosen in all passages of antenna feeder combiner altogether to be measured successively；
S102, according to intermodulation principle, judges each detection frequency and other passages of the passage to be measured
Each detection frequency whether there is intermodulation；
S103, is judging there is mutual timing, determines whether that intermodulation product falls into the reception of the passage to be measured
In band, if it is determined that fall with, obtain all intermodulation products fall into the frequency received in band and it is each it is described mutually
Adjust the corresponding detection frequency of product.
Antenna feeder combiner constitutes co-space feedback system to multiple altogether, that is to say, that co-space feedback system mainly includes at least one
Individual antenna, feeder system (two and above feeder line composition), at least one combiner.Wherein, base station leads to
Cross antenna and send and receive radiofrequency signal, feeder line is used to connect RRU (Radio Remote Unit, radio frequency drawing
Remote unit) and antenna, combiner is used to be combined into several feeder lines all the way, reaches multiple feeder lines and use one
The purpose of antenna.Specifically：
1st, feeder line is responsible for connection equipment and antenna.
2nd, antenna is responsible for converting electrical signals to electromagnetic energy and is radiate, the electromagnetism that will be received in turn
Energy is converted to electric signal, and combiner is passed back by feeder line, and combiner is transmitted to equipment receiver again.
As shown in figure 1, radio frequency unit A, B and C are equipment, two combiners are device, feeder system
Connection equipment, device and antenna.Visible three feeder lines share a combiner in figure, and this system is referred to as
Co-space feedback system.
So-called antenna feeder interference altogether, refers to that the feeder line of radio frequency unit A, B, C has shared combiner and is transferred to one
Individual antenna, but if the linearity of combiner is bad, then the signal of radio frequency unit A, B, C transmitting
Intermodulation Interference can be produced.
The method of the embodiment of the present invention described in detail below.
The embodiment of the present invention is comprised the following steps in detail：
Step 1, webmaster inquires about combiner H present in antenna feeder combining system P, and selection needs the outer of analysis
Combiner is put to be detected as combiner to be measured.This step is specifically included：
Set up the topological structure identical antenna feeder network topology of antenna feeder combiner system together；
The antenna feeder combiner altogether to be measured is chosen in the antenna feeder network topology.
Specifically, antenna feeder network topology corresponding with actual antenna feeder combining system is set up, its major function is by day
The topological relation of feedback system is abstracted.How it is modeled can describe in detail in specific implementation.Antenna feeder
Combining system is in units of combiner, and combiner is in units of antenna feeder, each combining its comprise at least two
Antenna feeder.User according to present in the whole network base station outside antenna feeder link based on, manual configuration antenna feeder combining system
System topological structure.User can configure alarming threshold, and alarming threshold includes slight alarm and high severity alarm.
Step 2, first to m-th combiner H to be measuredmDetected, initial value is 0；Before detection
Combiner H is present when carrying, i.e., external combiner number N is more than or equal to 1 in antenna feeder combining system.If N is big
In equal to 1, step 3 is performed, if N is less than 1, terminated.
Step 3, collects m-th upper and lower row information of each double-channel duplex of combiner to be measured, it is assumed that the antenna feeder altogether
Combiner has n passage, wherein, the passage to be measured is f1, other described passages are respectively f2、f3、……、
fn, n >=2；Then the duplexing start-stop frequency of n passage combiner to be measured be respectively f1s~f1e, f2s~f2e,
F3s~f3e ..., fns~fne.
Step 4, according to intermodulation principle computing, judges the passage f to be measured1Each detection frequency and f2It is each
Detection frequency whether there is intermodulation.If not, performing step 9；If it is, performing step 5.
This step is specifically included：
Step 41, is introduced by default frequency grid of W=100K, with duplexing starting frequency for
Point, duplex is that terminal travels through all passages by frequency, and f is traveled through first1, more than f1Returned after e and be set to f1S,
Now f2Plus W, the like traversal f2。
Specifically, it is assumed that f2In have i detection frequency；With f1Duplex starting frequency for traversal starting point, with
f1Duplex cut-off frequency for traversal terminal, preset x=1, travel through f1Each detection frequency, f is judged successively1
X-th detection frequency of each detection frequency and f2 whether there is intermodulation；As traversal f1After end, set
X=x+1, travels through f again1Each detection frequency, f is judged successively1Each detection frequency and f2 x-th inspection
Frequency measurement point whether there is intermodulation, until x=i；
Step 42, the judgment model based on step 41, judges f successively1Each detection frequency respectively with f3、……、
fnEach detection frequency whether there is intermodulation.That is, f1It is the cumulative frequency of frequency grid with W, is more than
f1Returned after e and be set to f1S, while f2Plus 100k, the like f2More than f2F during e3Plus 100K the like,
It is circulated into step 41.Until f2~fNWhether whether f1 exceeds by frequency and simultaneously all to reach duplex
Duplex meets condition simultaneously, carries out the detection of next combiner to be detected.
Step 5, is judging there is mutual timing, determines whether that intermodulation product falls into connecing for the passage to be measured
In take-up, if it is determined that fall with, obtain all intermodulation products and fall into the frequency received in band and each described
The corresponding detection frequency of intermodulation product.
The all intermodulation products for obtaining are fallen into the frequency received in band and each intermodulation are produced by step 6
The corresponding detection frequency of thing is sent to the corresponding base station of the passage to be measured, so that the base station calculates transmitting
Power and receiving power；
Specifically include：
Step 61, obtains all intermodulation products and falls into the frequency and each intermodulation product pair received in band
The detection frequency answered is respectively as launching frequency and receives frequency, is issued to base station, and control passage is in fixed frequency
Point transmitting is received.
Step 62, records the receiving power that each base station reports.
Step 7, mutual tone pitch is calculated according to the receiving power for respectively reporting, and generates mutual jamming report, triggering alarm.
That is, the transmission power and the receiving power are obtained from the base station, according to the transmission power
Mutual tone pitch is calculated with the receiving power.Such as transmission power is two tone signals of 43dBm, 3
The mutual adjusted position of rank receives the signal of -60dBm, then with computing this combiner can be drawn in correspondence frequency
Third order intermodulation value is -103dBc.
Step 8, presets some intermodulation thresholdings, according to the mutual tone pitch obtained in step 7 and default mutual pitch
Limit gives a warning.For example certain combiner H to be measured protects the module frequency F1 of two passage T1 and T2, T1
Reception band is fallen into the third order intermodulation of certain frequency F2 of T2, and the mutual tone pitch of device will be detected for -108dBc,
Alarm can be divided into several grades, and by taking third order intermodulation thresholding as an example, such as three ranks more than -80dBc are serious
Alarm, -80dBc~-120dBc is slight alarm, is not alerted less than -120dBc, then -108dBc should
Do slight alarming processing.
Wherein, step 41 sets x=x+1 after traversal f1 terminates, and each detection frequency of f1 is traveled through again
The step of, specifically include：
If it is determined that each detection frequency of f1 has mutual timing with x-th detection frequency of f2, acquisition falls at first
Enter the corresponding detection frequency of intermodulation product received in band of the passage to be measured；
After traversal f1 terminates, x=x+1 is set, the corresponding detection frequency of intermodulation product is set to travel through
Starting point travels through each detection frequency of f1 again.
That is, this step is according to intermodulation principle computing, calculates intermodulation and fall into the lowest frequency received in band
Point, if it does, in this, as the initial frequency of traversal.This step, can effectively improve detection efficiency.
The determination mode of each test point is preferably in the following way in the embodiment of the present invention：
The duplex starting frequency with each passage is initial detection frequency, with the institute of each passage
It is the detection frequency for terminating to state duplex cut-off frequency；
It is traversal starting point with the initial detection frequency, is traversal terminal with the detection frequency of the termination,
It is traversal step-length with default frequency grid, determines each detection frequency of each passage.
The embodiment of the present invention can be effectively to co-space feedback system mutual interference detect.
Embodiment two
The embodiment of the present invention provides a kind of antenna feeder mutual interference detection method of combiner altogether, for base station side, including：
S301, obtains all intermodulation products and falls into the frequency received in band and each intermodulation from webmaster side
The corresponding detection frequency of product；
S302, each intermodulation product is fallen in the frequency received in band as launching frequency, and by each institute
The corresponding detection frequency of intermodulation product is stated as reception frequency；
S303, in the launching frequency transmission signal, and receives signal, and calculate in the reception frequency
Go out transmission power and receiving power；
S304, webmaster side is sent to by the transmission power and the receiving power, so that webmaster lateral root is according to institute
State transmission power and the receiving power calculates mutual tone pitch.
Embodiment three
As shown in figure 5, the embodiment of the present invention provides a kind of antenna feeder mutual Interference Detection system of combiner altogether, including：
Configuration module, the topological structure identical antenna feeder network topology for setting up antenna feeder combiner system together；
The antenna feeder combiner altogether to be measured is chosen in the antenna feeder network topology.
Enquiry module, is input into the output for configuration module, for configuring antenna feeder combining in query configuration module
Combiner present in system topology, combiner is given in the form of a list, so that selecting module is entered
Row selection, its output passes to selecting module.
Selecting module, for choosing passage to be measured successively in all passages of antenna feeder combiner altogether to be measured.
That is the input of this module is the output of enquiry module, the conjunction that user is given in enquiry module according to demand
The combiner of detection needed for selection, selection result is exported and gives frequency processing module in the device list of road；
Frequency processing module, for according to intermodulation principle, judge the passage to be measured each detection frequency and its
Each detection frequency of his passage whether there is intermodulation；The input of this module is the output of selecting module, root
According to selecting module result queries selected by antenna feeder contained by combiner connect the duplex information of base station, according to intermodulation
Principle carries out intermodulation calculating, and intermodulation product is fallen into the frequency detection received in band, the frequency point information that will be detected
Pass to communication module treatment.Specifically, frequency processing module includes that frequency acquiring unit, first judge single
Unit and the n-th judging unit；
Wherein, frequency processing module, for assuming that the antenna feeder combiner altogether has n passage, wherein, institute
Passage to be measured is stated for f1, other described passages be respectively f2, f3 ..., fn, n >=2；And obtain respectively
Take the duplexing start-stop frequency of each passage；
First judging unit, for assuming there be i detection frequency in f2；It is with the initial frequency of the duplex of f1
Traversal starting point, the duplex cut-off frequency with f1 is traversal terminal, presets x=1, travels through each detection of f1 frequently
Point, judges that each detection frequency of f1 whether there is intermodulation with x-th detection frequency of f2 successively；Work as traversal
After f1 terminates, x=x+1 is set, each detection frequency of f1 is traveled through again, each detection of f1 is judged successively frequently
Point whether there is intermodulation with x-th detection frequency of f2, until x=i；
N-th judging unit, for the judgment model based on the first judging unit, judges each inspection of f1 successively
Frequency measurement point respectively with f3 ..., each detection frequency of fn whether there is intermodulation.
Communication module, for judging there is mutual timing, determines whether that intermodulation product falls into described to be measured logical
In the reception band in road, if it is determined that fall with, obtain all intermodulation products fall into the frequency received in band and
The corresponding detection frequency of each intermodulation product.That is, this module is responsible for and base station communication module duplex
Communication, can obtain base station duplex information transmission carries out frequency calculation process to frequency processing module, also can be by frequency
The detection frequency point information that point processing module is calculated is handed down to multiple base stations and processes by the communication module of base station,
Also the receiving power result of base station receiving power detection module detection can be passed into computing module to be calculated.
Communication module, is additionally operable to for all intermodulation products for obtaining to fall into the frequency received in band and each institute
State the corresponding detection frequency of intermodulation product and be sent to the corresponding base station of the passage to be measured, so that the base station is counted
Calculate transmission power and receiving power；
Computing module, for obtaining the transmission power and the receiving power from the base station, according to described
Transmission power and the receiving power calculate mutual tone pitch.
Display module, the input of this module is the result of calculation of computing module, for by base station information, combining
, to user, wherein interference value is according to announcement for the presentation of information such as device information, interference value (mutual tone pitch) size, exponent number
Alert grade is presented.
The system of the embodiment of the present invention described further below.
Configuration module sets up antenna feeder network topology corresponding with actual antenna feeder combining system, and its major function is by day
The topological relation of feedback system is abstracted.How it is modeled can describe in detail in specific implementation.Antenna feeder
Combining system is in units of combiner, and combiner is in units of antenna feeder, each combining its comprise at least two
Antenna feeder.User according to present in the whole network base station outside antenna feeder link based on, manual configuration antenna feeder combining system
System topological structure.User can configure alarming threshold, and alarming threshold includes slight alarm and high severity alarm.Tool
Body is said：
The Mathematical Modeling that the pre-established actual antenna feeder combining system of configuration module matches
Need to be set up and actual combining system corresponding Mathematical Modeling therewith, this number firstly the need of webmaster side configuration module
Learn the basis that model is also subsequent arithmetic.Its Mathematical Modeling is as shown in figure 4, by the antenna feeder combining system of the whole network
Regard a set as, it is the subset of antenna-feedback system to be denoted as set P, and combiner, with H1, H2 ... Hn
Represent, represent with the presence of n combiner in this antenna feeder combining system, and each combiner subset must have oneself
Whether oneself attribute, its attribute includes the number of antenna feeder, is chosen detection etc., and each combiner subset is included
Two or more antenna feeder element Ts, antenna feeder element T includes base station duplex starting frequency, the end for connecting antenna feeder
Only frequency, channel number, base station network element number waits base station information.
User is configured according to actual antenna feeder combining system in configuration module：
1. combiner ID is increased, and such as Fig. 1 increases H1 ... Hn
2. under pair each combiner, its attribute is increased：Including affiliated passage 1 (feeder line 1), (feedback of passage 2
Line 2), passage 3 (feeder line 3)
This configuration result is using as the input of enquiry module；
Alarming threshold is set：
Alarm can be divided into several grades, and by taking third order intermodulation thresholding as an example, such as three ranks more than -80dBc are
High severity alarm, -80dBc~-120dBc is slight alarm, is not alerted less than -120dBc, then -108dBc
Slight alarming processing should be done.
The function of enquiry module exactly finds out subclass road device H in antenna feeder combining system set P, by combining
Device is given in the form of a list, so that selecting module is selected；And the result inquired about is exported to choosing
Select module.
Selecting module is mainly used in needing selection according to user's request, and such as user need to detect H1 and H3 two
Combiner, then user selects H1 and H3, and selecting module is according to user's selection modification combiner
Whether collection H1's and H3 is chosen detection attribute.
Example IV
As shown in figure 5, the embodiment of the present invention provides a kind of base station, including：
Frequency receiving unit, the frequency received in band is fallen into for obtaining all intermodulation products from webmaster side
Detection frequency corresponding with each intermodulation product；
Execution unit, for each intermodulation product being fallen in the frequency received in band as launching frequency, with
And using the corresponding detection frequency of each intermodulation product as receiving frequency；And in launching frequency transmitting
Signal, and signal is received in the reception frequency, and calculate transmission power and receiving power；
Communication unit, for the transmission power and the receiving power to be sent into webmaster side, so that webmaster
Lateral root calculates mutual tone pitch according to the transmission power and the receiving power.
The system of embodiment described briefly below three and the interaction flow of the base station of example IV.
It is to be illustrated containing N number of combiner subset H with antenna feeder combining system P, it is as follows：
Step 1：After the completion of the topological structure of the whole network antenna feeder combining system is set up, enquiry module is to inquiry first
The quantity of the combiner of detection is chosen in antenna feeder combining system, selected number N enters more than or equal to 1
Row detection, flow is directly terminated if less than 1.
Step 2：Assuming that the combiner N that detection is chosen in antenna feeder combining system is more than or equal to 1, then start
Testing process, webmaster can collect the upper and lower row information of each double-channel duplex by communication module, and for example m is (from 0
Count) contain n antenna feeder element T in individual combiner H, frequency is started according to duplex and end frequency draws
f1s~f1e, f2s~f2e……fns~fne, it is introduced by frequency grid of W=100K herein, with duplexing starting
Frequency is starting point, and duplex is that terminal travels through all passages by frequency, and f1 is traveled through first, is returned more than after f1e
It is set to f1s, now f2Plus W, the like, f1F is traveled through after the completion of traversal2……fn, frequency processing module
According to intermodulation principle computing, calculate intermodulation and fall into the minimum frequency received in band, if it does, being made with this
It is the initial frequency of traversal, into circulation.Detected if there is no m+1 groups combiner is carried out.
Step 3：Assuming that be computed intermodulation product fall into reception band, in this, as the initial frequency of traversal,
Circulation into combiner first determines whether f2~fnWhether duplex is all reached by frequency and f simultaneously1Whether exceed
Duplex, if in f2~fnDuplex is all reached by frequency while f1Beyond duplex, i+1 group combiner is carried out
Detection.If in f2~fnDuplex is all reached by frequency and f1Beyond two conditions of duplex have one set up or
When person is invalid, webmaster frequency processing module can by communication module to base station issue launching frequency information and
Frequency point information is received, base station indicates in fixed frequency transmitting or receive, transmitter module control base station according to webmaster
Tone signal is sent in fixed frequency, in fixed frequency detection performance number, and receiving power result is uploaded to
Webmaster is recorded.
Step 4：After the collection of one group information terminates, f1It is the cumulative frequency of frequency grid with W, more than f1eAfterwards
Return and be set to f1s, while f2Plus 100k, the like f2More than f2eWhen f3Plus 100K the like, enter
Step 3 is circulated.
Step 5：Until f2~fNWhether all reach duplex by frequency and simultaneously f1 whether beyond duplex simultaneously
Meet condition, carry out m+1 combiner detections, and judge whether m+1 is equal to N, if m+1 is less than N
Illustrate that also combiner does not detect that system is circulated into step 2.Illustrated if m+1 is equal to N
The combiner detection of all selection detections of the whole network is completed.
Although being example purpose, the preferred embodiments of the present invention, the technology of this area are more than had been disclosed for
Personnel will recognize that various improvement, increase and substitution are also possible, therefore, the scope of the present invention should not
It is limited to above-described embodiment.
Claims (14)
1. it is a kind of to be total to the antenna feeder mutual interference detection method of combiner, it is characterised in that including：
Passage to be measured is chosen successively in all passages of antenna feeder combiner altogether to be measured；
According to intermodulation principle, each detection frequency of the passage to be measured and each detection of other passages are judged
Frequency whether there is intermodulation；
Judging there is mutual timing, determining whether that intermodulation product is fallen into the reception band of the passage to be measured,
If it is determined that falling with, obtain all intermodulation products and fall into the frequency and each intermodulation product received in band
Corresponding detection frequency.
2. the method for claim 1, it is characterised in that judge each detection of the passage to be measured
The step of frequency whether there is intermodulation with each detection frequency of other passages, specifically includes：
Step A, it is assumed that the antenna feeder combiner altogether has n passage, wherein, the passage to be measured is f1,
Other described passages are respectively f2、f3、……、fn, n >=2；The duplexing start-stop of each passage is obtained respectively
Frequency；
Step B, it is assumed that f2In have i detection frequency；With f1Duplex starting frequency for traversal starting point, with
f1Duplex cut-off frequency for traversal terminal, preset x=1, travel through f1Each detection frequency, f is judged successively1
X-th detection frequency of each detection frequency and f2 whether there is intermodulation；As traversal f1After end, set
X=x+1, travels through f again1Each detection frequency, f is judged successively1Each detection frequency and f2 x-th inspection
Frequency measurement point whether there is intermodulation, until x=i；
Step C, based on the judgment model of step B, judge successively each detection frequency of f1 respectively with f3、……、
fnEach detection frequency whether there is intermodulation.
3. method as claimed in claim 2, it is characterised in that as traversal f1After end, x=x+1 is set,
Again f is traveled through1Each detection frequency the step of, specifically include：
If it is determined that each detection frequency of f1 has mutual timing with x-th detection frequency of f2, acquisition falls at first
Enter the corresponding detection frequency of intermodulation product received in band of the passage to be measured；
As traversal f1After end, x=x+1 is set, it is traversal to set the corresponding detection frequency of intermodulation product
Starting point travels through f again1Each detection frequency.
4. method as claimed in claim 2 or claim 3, it is characterised in that judge each of the passage to be measured
Before the step of detection frequency whether there is intermodulation with each detection frequency of other passages, also include：
The duplex starting frequency with each passage is initial detection frequency, with the institute of each passage
It is the detection frequency for terminating to state duplex cut-off frequency；
It is traversal starting point with the initial detection frequency, is traversal terminal with the detection frequency of the termination,
It is traversal step-length with default frequency grid, determines each detection frequency of each passage.
5. the method as described in claim 1-3 any one, it is characterised in that obtain all intermodulation and produce
Thing is fallen into after the step of frequency and each intermodulation product received in band is corresponding to detect frequency, also
Including：
The all intermodulation products for obtaining are fallen into the frequency received in band corresponding with each intermodulation product
Detection frequency be sent to the corresponding base station of the passage to be measured so that the base station calculate transmission power and
Receiving power；
The transmission power and the receiving power are obtained from the base station, according to the transmission power and described
Receiving power calculates mutual tone pitch.
6. the method as described in claim 1-3 any one, it is characterised in that
Set up the topological structure identical antenna feeder network topology of antenna feeder combiner system together；
The antenna feeder combiner altogether to be measured is chosen in the antenna feeder network topology.
7. it is a kind of to be total to the antenna feeder mutual interference detection method of combiner, it is characterised in that including：
All intermodulation products are obtained from webmaster side fall into the frequency and each intermodulation product received in band
Corresponding detection frequency；
Each intermodulation product is fallen in the frequency received in band as launching frequency, and by each intermodulation
The corresponding detection frequency of product is used as reception frequency；
In the launching frequency transmission signal, and signal is received in the reception frequency, and calculate transmitting
Power and receiving power；
The transmission power and the receiving power are sent to webmaster side, so that webmaster lateral root is according to the transmitting
Power and the receiving power calculate mutual tone pitch.
8. it is a kind of to be total to the antenna feeder mutual Interference Detection system of combiner, it is characterised in that including：
Selecting module, for choosing passage to be measured successively in all passages of antenna feeder combiner altogether to be measured；
Frequency processing module, for according to intermodulation principle, judge the passage to be measured each detection frequency and its
Each detection frequency of his passage whether there is intermodulation；
Communication module, for judging there is mutual timing, determines whether that intermodulation product falls into described to be measured logical
In the reception band in road, if it is determined that fall with, obtain all intermodulation products fall into the frequency received in band and
The corresponding detection frequency of each intermodulation product.
9. system as claimed in claim 8, it is characterised in that the frequency processing module includes frequency
Acquiring unit, the first judging unit and the n-th judging unit；
The frequency processing module, for assuming that the antenna feeder combiner altogether has n passage, wherein, it is described
Passage to be measured is f1, other described passages are respectively f2、f3、……、fn, n >=2；And obtain each respectively
The duplexing start-stop frequency of the passage；
First judging unit, for assuming there be i detection frequency in f2；With f1Duplex starting frequency
It is traversal starting point, with f1Duplex cut-off frequency for traversal terminal, preset x=1, travel through f1Each detection frequently
Point, judges f successively1Each detection frequency and f2X-th detection frequency whether there is intermodulation；As traversal f1
After end, x=x+1 is set, f is traveled through again1Each detection frequency, f is judged successively1Each detection frequency with
f2X-th detection frequency whether there is intermodulation, until x=i；
N-th judging unit, for the judgment model based on the first judging unit, judges f successively1It is each
Detection frequency respectively with f3、……、fnEach detection frequency whether there is intermodulation.
10. system as claimed in claim 9, it is characterised in that first judging unit is in traversal f1
After end, x=x+1 is set, f is traveled through again1Each detection frequency when in the following way：
If it is determined that each detection frequency of f1 has mutual timing with x-th detection frequency of f2, acquisition falls at first
Enter the corresponding detection frequency of intermodulation product received in band of the passage to be measured；
After traversal f1 terminates, x=x+1 is set, the corresponding detection frequency of intermodulation product is set to travel through
Starting point travels through each detection frequency of f1 again.
11. system as described in claim 9 or 10, it is characterised in that the system also includes configuration
Module, is initial detection frequency for the duplex starting frequency with each passage, with each described logical
The duplex cut-off frequency in road is the detection frequency for terminating；
It is traversal starting point with the initial detection frequency, is traversal terminal with the detection frequency of the termination,
It is traversal step-length with default frequency grid, determines each detection frequency of each passage.
12. system as described in claim 8-10 any one, it is characterised in that the system is also wrapped
Include computing module；
The communication module, be additionally operable to by obtain all intermodulation products fall into it is described receive band in frequency and
Each intermodulation product is corresponding to detect that frequency is sent to the corresponding base station of the passage to be measured, so that the base
Station calculates transmission power and receiving power；
The computing module, for obtaining the transmission power and the receiving power from the base station, according to
The transmission power and the receiving power calculate mutual tone pitch.
13. system as described in claim 8-10 any one, it is characterised in that the system is also wrapped
Configuration module is included, the topological structure identical antenna feeder network topology for setting up antenna feeder combiner system together；
The antenna feeder combiner altogether to be measured is chosen in the antenna feeder network topology.
A kind of 14. base stations, it is characterised in that including：
Frequency receiving unit, the frequency received in band is fallen into for obtaining all intermodulation products from webmaster side
Detection frequency corresponding with each intermodulation product；
Execution unit, for each intermodulation product being fallen in the frequency received in band as launching frequency, with
And using the corresponding detection frequency of each intermodulation product as receiving frequency；And in launching frequency transmitting
Signal, and signal is received in the reception frequency, and calculate transmission power and receiving power；
Communication unit, for the transmission power and the receiving power to be sent into webmaster side, so that webmaster
Lateral root calculates mutual tone pitch according to the transmission power and the receiving power.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929605.3A CN106888063A (en) | 2015-12-15 | 2015-12-15 | The mutual interference detection method of common antenna feeder combiner, system and base station |
| PCT/CN2016/104076 WO2017101601A1 (en) | 2015-12-15 | 2016-10-31 | Method, system and base station for detecting mutual interference in co-antenna feeding combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929605.3A CN106888063A (en) | 2015-12-15 | 2015-12-15 | The mutual interference detection method of common antenna feeder combiner, system and base station |
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| Publication Number | Publication Date |
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| CN106888063A true CN106888063A (en) | 2017-06-23 |
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|---|---|---|---|
| CN201510929605.3A Pending CN106888063A (en) | 2015-12-15 | 2015-12-15 | The mutual interference detection method of common antenna feeder combiner, system and base station |
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| CN (1) | CN106888063A (en) |
| WO (1) | WO2017101601A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114095932A (en) * | 2021-11-17 | 2022-02-25 | 重庆兰空无人机技术有限公司 | Method and system for frequency spectrum detection and unmanned aerial vehicle positioning equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101657010B (en) * | 2009-09-16 | 2012-02-08 | 中兴通讯股份有限公司 | Assessment method and device of intermodulation interference |
| ES2572954T3 (en) * | 2011-09-16 | 2016-06-03 | Andrew Wireless Systems Gmbh | Integrated intermodulation detection subsystem for telecommunications systems |
| CN102868462A (en) * | 2012-09-07 | 2013-01-09 | 苏州市大富通信技术有限公司 | Inter-modulation signal detecting system and method |
| CN103002493B (en) * | 2012-12-11 | 2015-05-27 | 华为技术有限公司 | Passive intermodulation detection method and device |
| CN104967494B (en) * | 2015-04-30 | 2018-05-11 | 华为技术有限公司 | A kind of test method, equipment and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114095932A (en) * | 2021-11-17 | 2022-02-25 | 重庆兰空无人机技术有限公司 | Method and system for frequency spectrum detection and unmanned aerial vehicle positioning equipment |
| CN114095932B (en) * | 2021-11-17 | 2024-01-02 | 重庆兰空无人机技术有限公司 | Spectrum detection system and unmanned aerial vehicle positioning equipment |
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