CN101296471A - Interference detection device and interference detection method - Google Patents

Interference detection device and interference detection method Download PDF

Info

Publication number
CN101296471A
CN101296471A CNA2008101291776A CN200810129177A CN101296471A CN 101296471 A CN101296471 A CN 101296471A CN A2008101291776 A CNA2008101291776 A CN A2008101291776A CN 200810129177 A CN200810129177 A CN 200810129177A CN 101296471 A CN101296471 A CN 101296471A
Authority
CN
China
Prior art keywords
signal
isolation
unit
interference
base station
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.)
Granted
Application number
CNA2008101291776A
Other languages
Chinese (zh)
Other versions
CN101296471B (en
Inventor
罗鹏飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN2008101291776A priority Critical patent/CN101296471B/en
Publication of CN101296471A publication Critical patent/CN101296471A/en
Application granted granted Critical
Publication of CN101296471B publication Critical patent/CN101296471B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses an interference detecting device and a method thereof; particularly, the interference detecting device comprises a signal demodulation unit, a base station acquisition unit, an isolation acquisition unit and an alarm processing unit. By using the interference detecting device and the method thereof in the embodiment of the invention, the type of the interference source can be judged correctly and the interference alarm can be correctly given.

Description

Interference detecting apparatus and interference detection method
Technical field
The present invention relates to communication technical field, relate in particular to a kind of interference detecting apparatus and interference detection method.
Background technology
Along with closing on day by day of 3G step, how better and follow-up each big operator all be faced with the 3G system problem of compatibility mutually when own present network is strengthened the optimization dynamics.Each manufacturer is all from cost price minimum, the tool operability of engineering, to PHS (Person Handle System, personal handyphone system) network, GSM network (Global System for Mobile Communication, global system for mobile communications), CDMA (Code Division Multiple Access, code division multiple access inserts) existing network such as network influence angle with smallest and sets out, seek to solve 3G network build in the existing network of existence to the solution of 3G interference problem.
Detecting the means of disturbing at present mainly is by terminal and spectrum analysis equipment, and whether the judgement interference that terminal can only be rough exists, and Interference Detection must be undertaken by spectrum analysis equipment accurately.Traditional interference positioning method is by the frequency spectrograph frequency sweep, and characteristics such as observation signal frequency, amplitude and bandwidth are carried out discriminatory analysis.
The inventor finds that there is following shortcoming at least in prior art in realizing process of the present invention:
Therefore the frequency spectrograph main purpose is all to carry out accurate signal analysis in the ultratvide frequency band scope, causes costing an arm and a leg, volume is big, quality is heavy.If adopt the portable frequency spectrum instrument of low side, its principle be by reduce measuring accuracy reach reduce cost, the purpose of volume and weight, but precision index is even more important in interference monitoring, otherwise can't accurately judge annoyance level, is unfavorable for determining alarming threshold.
Summary of the invention
Embodiments of the invention provide a kind of interference detecting apparatus and interference detection method, and the signal of receiving that is used to achieve a butt joint is reasonably judged, so that interference source is judged.
Embodiments of the invention provide a kind of interference detecting apparatus, comprising: signal demodulation unit, base station acquiring unit, isolation acquiring unit, interference judging unit:
Described signal demodulation unit, be used for the signal to be detected that receives is carried out demodulation, demodulation is obtained the pilot signal amplitude of described interference detecting apparatus present position and is sent to described isolation acquiring unit, and demodulation is obtained base station pilot information and sent to described base station acquiring unit;
Described base station acquiring unit is used for the base station pilot information according to described signal demodulation unit transmission, obtains the corresponding signal power of each signal source sign and each signal source sign and sends to described isolation acquiring unit;
Described isolation acquiring unit, be used for pilot signal amplitude according to the described interference detecting apparatus present position of described signal demodulation unit transmission, and each signal source sign of described base station acquiring unit transmission and the corresponding signal power of each signal source sign, obtain isolation and send to described interference judging unit;
Described interference judging unit is used for the isolation according to described isolation acquiring unit transmission, and predefined isolation thresholding, judges annoyance level.
Embodiments of the invention also provide a kind of interference detection method, comprising:
The signal to be detected that receives is carried out demodulation and obtains the pilot signal amplitude and base station pilot information;
According to described base station pilot information, obtain each signal source sign and the corresponding signal power of each signal source sign;
According to described pilot signal amplitude, described each signal source sign and the corresponding signal power of each signal source sign, obtain isolation;
According to described isolation and predefined isolation thresholding, judge annoyance level.
Compared with prior art, embodiments of the invention have the following advantages:
In the interference detecting apparatus and method of embodiments of the invention, by pilot signal amplitude and the base station pilot information of obtaining signal to be detected, can obtain isolation and compare with the isolation thresholding that obtains in advance, thereby judge interference source type accurately, disturb alarm and output isolation accurately.
Description of drawings
Fig. 1 is the structural representation of a kind of interference detecting apparatus in the embodiment of the invention;
Fig. 2 is the structural representation of another kind of interference detecting apparatus in the embodiment of the invention;
Fig. 3 is the flow chart of a kind of interference detection method in the embodiment of the invention.
Embodiment
Embodiments of the invention provide a kind of interference detecting apparatus, as shown in Figure 1, comprising: signal demodulation unit 1, base station acquiring unit 2, isolation acquiring unit 3 and interference judging unit 4.
Signal demodulation unit 1, be used for the signal to be detected that receives is carried out demodulation, and judge whether to exist signal, if exist then demodulation is obtained the pilot signal amplitude of interference detecting apparatus present position and sent to isolation acquiring unit 3, demodulation is obtained base station pilot information and is sent to base station acquiring unit 2.
Base station acquiring unit 2 is used for the base station pilot information according to signal demodulation unit 1 transmission, obtains the corresponding signal power of each signal source sign and each signal source sign and sends to isolation acquiring unit 3.
Isolation acquiring unit 3, be used for pilot signal amplitude according to the interference detecting apparatus present position of signal demodulation unit 1 transmission, and each signal source sign of base station acquiring unit 2 transmissions and the corresponding signal power of each signal source sign, obtain isolation and send to and disturb judging unit 4.
Disturb judging unit 4, be used for isolation according to 3 transmissions of isolation acquiring unit, and predefined isolation thresholding, judge annoyance level.
Concrete, the interference monitoring device that provides among this embodiment, promptly can independent test also can be integrated in the base station equipment.By internal arithmetic and setting thresholding, make it possess the function that shows interference signal isolation, demonstration base station IDs and large-signal input alarm.In the site survey stage of the network planning, can directly judge website annoyance level and availability by this interference monitoring device.After web construction was finished, the interference monitoring device added and hangs over base station side, and the interference source that the later network optimization increases is monitored.
In the another embodiment of the present invention, be example with the detection that PHS is disturbed, the structure of further instruction interference monitoring device.As shown in Figure 2, this interference monitoring device further comprises during as testing equipment independently: antenna 10, bandpass filtering unit 20, rf receiver unit 30, signal demodulation unit 40, alarming processing unit 50, base station acquiring unit 60, isolation computing unit 70, disturb judging unit 80 and display unit 90.Concrete, the detailed principle and the function of each several part are achieved as follows in this interference monitoring device:
Antenna 10 is used for receiving the PHS signal at testing location as receiving element, and the signal that receives is sent to bandpass filtering unit 20.
Bandpass filtering unit 20, the signal that is used for antenna 10 is received carries out filtering, and filtered signal is sent to rf receiver unit 30.This bandpass filtering unit 20 can be the PHS band pass filter.
Rf receiver unit 30, be used for the filtered signal that bandpass filtering unit 20 sends amplify, down-conversion and sampling processing, and the signal after will handling sends to signal demodulation unit 40.
Signal demodulation unit 40 when being used to receive the signal after the processing that rf receiver unit 30 sends, carrying out the demodulation of PHS signal to the received signal, and judges whether to exist the PHS signal.There is the PHS signal if can proper solution transfer out the information explanation, then according to the PHS pilot signal amplitude of the gain of rf receiver unit 30 and signal demodulation unit 40 samplings, calculate this moment in the PHS of antenna 10 pilot signal amplitude, send into isolation acquiring unit 70.The PHS base station pilot information of taking out according to demodulation sends to base station acquiring unit 60 simultaneously; If can't demodulation, illustrate there is not the PHS signal to have only noise, just directly show noiseless at display unit 90.
Base station acquiring unit 60, be used for PHS base station pilot information according to signal demodulation unit 40 transmissions, extract the data in the fixed code string, calculate the signal power of each signal source ID of PHS (being the PHS base station IDs) and each signal source ID correspondence, send to isolation acquiring unit 70.
Isolation acquiring unit 70 is used for obtaining isolation information and sending to interference judging unit 80 in the PHS of antenna 10 pilot signal amplitude according to what signal demodulation unit 40 sent.Concrete, the power of considering the PHS base station is known, then can obtain signal power according to the PHS pilot signal amplitude of antenna 10, can obtain out the isolation of signal source to this device place test point according to the difference of two power.
Disturb judging unit 80, be used to judge whether the isolation of isolation acquiring unit 70 transmissions meets the thresholding of setting, to judge annoyance level.。
Alarming processing unit 50 is used for producing warning information when the isolation that disturbs judging unit 80 to judge that isolation acquiring units 70 send during less than predefined isolation thresholding.
Display unit 90, the isolation that signal source identifies and isolation acquiring unit 70 obtains that is used for base station acquiring unit 60 is obtained shows.
In addition, when this interference monitoring device is connected test with the base station, can connects this interference monitoring device by the also cabinet interface of base station and test, should ask the 26S Proteasome Structure and Function of the interference monitoring device under the condition as above shown in Figure 2, not be repeated in this description at this.Generally a little disturb when location building a station, can adopt this kind structure.
The embodiment of the application of the invention, by pilot signal amplitude and the base station pilot information of obtaining signal to be detected, can obtain isolation and compare, thereby judge interference source type accurately, disturb alarm and output isolation accurately with the isolation thresholding that obtains in advance.Existing frequency spectrograph does not possess this function, must be through drawing general isolation data after a large amount of test, analysis and the calculating.In addition, this interference monitoring device can be loaded into the base station, also can be portable, and littler and its cost is lower on the volume than frequency spectrograph.
Embodiments of the invention also provide a kind of interference detection method, as shown in Figure 3, comprising:
Step s101, the signal to be detected that receives is carried out demodulation and obtains the pilot signal amplitude and base station pilot information.
Step s102, according to described base station pilot information, obtain each signal source sign and the corresponding signal power of each signal source sign.
Step s103, according to described pilot signal amplitude, each signal source sign and the corresponding signal power of each signal source sign, obtain isolation.
Step s104, according to described isolation and predefined isolation thresholding, judge annoyance level.
Concrete, before the above-mentioned steps s101, also comprise: receive pilot signal and described pilot signal is carried out filtering; To described filtered signal amplify, down-conversion and sampling processing.
Concrete, judge among the step s104 when annoyance level is an isolation less than predefined isolation thresholding, also comprise: produce warning information,
In addition, above-mentioned steps can also comprise: the signal source sign and the isolation that get access to are shown.
Need to prove, be example with detection that PHS is disturbed in the foregoing description, the structure of interference monitoring device is described, and the function of interference monitoring device is not limited to detection that PHS is disturbed in the embodiment of the invention, also can be applicable to the interference of networks such as GSM or CDMA is detected.When different interference is detected, need adjust the working frequency points of interference monitoring device, and the demodulation mode that signal demodulation unit carries out the signal demodulation is to the received signal carried out respective change according to the interference that detected.The working method of each several part is similar to above-mentioned detection to the PHS interference in the interference monitoring device, is not repeated in this description at this.
The interference monitoring device that provides in the embodiments of the invention possesses the function of three aspects: frequency sweep, signal analysis, alarm function.Concrete, the frequency sweep function class of interference monitoring device can be tested the signal distributions situation in certain frequency band like frequency spectrograph, can be from the feature and the size of initial analysis interference signal on amplitude and the bandwidth.The signal analysis function of interference monitoring device can be judged the ability of signal, obtains signal power and analyzes ID number of base station, helps to judge interference source and judges whether alarm.In the alarm function of interference monitoring device, can be according to predefined isolation thresholding, when the interference source that monitors when the isolation of base station reaches this thresholding, alarm at once.Thereby show the overproof amplitude of interference signal, conveniently to take further measures.
The embodiment of the application of the invention, by pilot signal amplitude and the base station pilot information of obtaining signal to be detected, can obtain isolation and compare, thereby judge interference source type accurately, disturb alarm and output isolation accurately with the isolation thresholding that obtains in advance.Existing frequency spectrograph does not possess this function, must be through drawing general isolation data after a large amount of test, analysis and the calculating.In addition, this interference monitoring device can be loaded into the base station, also can be portable, and littler and its cost is lower on the volume than frequency spectrograph.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize based on such understanding by the mode that software adds necessary general hardware platform, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (9)

1, a kind of interference detecting apparatus is characterized in that, comprising: signal demodulation unit, base station acquiring unit, isolation acquiring unit, interference judging unit:
Described signal demodulation unit, be used for the signal to be detected that receives is carried out demodulation, demodulation is obtained the pilot signal amplitude of described interference detecting apparatus present position and is sent to described isolation acquiring unit, and demodulation is obtained base station pilot information and sent to described base station acquiring unit;
Described base station acquiring unit is used for the base station pilot information according to described signal demodulation unit transmission, obtains the corresponding signal power of each signal source sign and each signal source sign and sends to described isolation acquiring unit;
Described isolation acquiring unit, be used for the pilot signal amplitude according to the described interference detecting apparatus present position of described signal demodulation unit transmission, each signal source sign and the corresponding signal power of each signal source sign that described base station acquiring unit sends, obtain isolation and send to described interference judging unit;
Described interference judging unit is used for the isolation according to described isolation acquiring unit transmission, and predefined isolation thresholding, judges annoyance level.
2, interference detecting apparatus according to claim 1 is characterized in that, also comprises: receiving element, bandpass filtering unit and rf receiver unit,
Described receiving element is used to receive pilot signal and sends to described bandpass filtering unit;
Described bandpass filtering unit is used for the pilot signal that described receiving element sends is carried out sending to described rf receiver unit after the filtering;
Described rf receiver unit is used for the filtered signal that described bandpass filtering unit sends is amplified, sends to described signal demodulation unit as described signal to be detected after down-conversion and the sampling processing.
3, interference detecting apparatus according to claim 1 is characterized in that, also comprises:
The alarming processing unit when being used for the isolation that sends when described interference judgment unit judges isolation acquiring unit less than predefined isolation thresholding, produces alarm;
4, interference detecting apparatus according to claim 1 is characterized in that, also comprises:
Display unit, the isolation that signal source identifies and described isolation acquiring unit obtains that is used for described base station acquiring unit is obtained shows.
5, as interference detecting apparatus as described in each in the claim 1 to 4, it is characterized in that described interference detecting apparatus is independent equipment or is integrated in the base station equipment.
6, a kind of interference detection method is characterized in that, comprising:
The signal to be detected that receives is carried out demodulation and obtains the pilot signal amplitude and base station pilot information;
According to described base station pilot information, obtain each signal source sign and the corresponding signal power of each signal source sign;
According to described pilot signal amplitude, described each signal source sign and the corresponding signal power of each signal source sign, obtain isolation;
According to described isolation and predefined isolation thresholding, judge annoyance level.
7, as interference detection method as described in the claim 6, it is characterized in that, described to the signal to be detected that receives carry out demodulation and obtain the pilot signal amplitude and base station pilot information before, also comprise:
Receive pilot signal and described pilot signal is carried out filtering;
To described filtered signal amplify, down-conversion and sampling processing.
8, as interference detection method as described in the claim 6, it is characterized in that, when described annoyance level is specially isolation less than predefined isolation thresholding, also comprise:
Produce warning information.
9, as interference detection method as described in the claim 6, it is characterized in that, also comprise:
Signal source sign that gets access to and the isolation that obtains are shown.
CN2008101291776A 2008-06-30 2008-06-30 Interference detection device and interference detection method Active CN101296471B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101291776A CN101296471B (en) 2008-06-30 2008-06-30 Interference detection device and interference detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101291776A CN101296471B (en) 2008-06-30 2008-06-30 Interference detection device and interference detection method

Publications (2)

Publication Number Publication Date
CN101296471A true CN101296471A (en) 2008-10-29
CN101296471B CN101296471B (en) 2012-02-29

Family

ID=40066413

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101291776A Active CN101296471B (en) 2008-06-30 2008-06-30 Interference detection device and interference detection method

Country Status (1)

Country Link
CN (1) CN101296471B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102186202A (en) * 2011-01-04 2011-09-14 京信通信系统（中国）有限公司 An interference source positioning system and method
CN103517299A (en) * 2012-06-18 2014-01-15 罗森伯格（上海）通信技术有限公司 Base-station intermodulation signal detection method and system
CN103888951A (en) * 2012-12-21 2014-06-25 电信科学技术研究院 Interference processing method and system in cognitive radio system
CN105376751A (en) * 2014-09-02 2016-03-02 中兴通讯股份有限公司 Detection, analysis and alarm method and apparatus
WO2016120696A1 (en) * 2015-01-30 2016-08-04 Huawei Technologies Co., Ltd. Method and system for validating interfering signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866509B1 (en) * 2004-02-13 2006-04-28 Thales Sa METHOD OF OPTIMIZING PLANNING IN A CDMA TYPE COMMUNICATIONS SYSTEM
CN1777074B (en) * 2005-11-28 2011-06-29 三维通信股份有限公司 Method for monitoring wireless high-frequency-amplification station isolation degree using pilot frequency multi-channel signal
CN101047486B (en) * 2006-06-23 2010-07-07 华为技术有限公司 Interference detection method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102186202A (en) * 2011-01-04 2011-09-14 京信通信系统（中国）有限公司 An interference source positioning system and method
CN103517299A (en) * 2012-06-18 2014-01-15 罗森伯格（上海）通信技术有限公司 Base-station intermodulation signal detection method and system
CN103517299B (en) * 2012-06-18 2018-11-20 罗森伯格（上海）通信技术有限公司 A kind of base-station intermodulation signal detection method and system
CN103888951A (en) * 2012-12-21 2014-06-25 电信科学技术研究院 Interference processing method and system in cognitive radio system
CN103888951B (en) * 2012-12-21 2017-06-23 电信科学技术研究院 A kind of interference processing method and system in cognitive radio system
CN105376751A (en) * 2014-09-02 2016-03-02 中兴通讯股份有限公司 Detection, analysis and alarm method and apparatus
WO2016120696A1 (en) * 2015-01-30 2016-08-04 Huawei Technologies Co., Ltd. Method and system for validating interfering signals
CN107211292A (en) * 2015-01-30 2017-09-26 华为技术有限公司 Confirm the method and system of interference signal

Also Published As

Publication number Publication date
CN101296471B (en) 2012-02-29

Similar Documents

Publication Publication Date Title
US20170164157A1 (en) Using smart meters as reliable crowd-sourcing agents
CN101296471B (en) Interference detection device and interference detection method
US20150052979A1 (en) Leakage signal analysis method
EP3112893B1 (en) Determining location of a user device
US9544732B2 (en) Mobile communication system
EP3672185A1 (en) Identifying potentially manipulated radio signals and/or radio signal parameters
CN110769452B (en) Base station longitude and latitude anomaly identification method, system, server and storage medium
Moreira et al. Multiple simultaneous Wi-Fi measurements in fingerprinting indoor positioning
EP3356839B1 (en) Checking fingerprint samples for a radio model
Strizic et al. Crowdsourcing GNSS jammer detection and localization
CN109522895B (en) Method, device, server and computer readable medium for verifying point of interest (POI)
CN109874148A (en) Antenna feeder method for detecting abnormality, device, system and computer equipment
US6801162B1 (en) Doppler-based automated direction finding system and method for locating cable television signal leaks
US8880092B1 (en) Using smart meters to determine mobile wireless computing device location
CN106455051A (en) WiFi positioning precision increasing method using distance calibration device
CN116527796B (en) Method for carrying out high-precision time service on ammeter based on dual-mode communication
CN106322123B (en) Pipeline leak detection method, system and its sampler and host
CN106254007B (en) A kind of frequency spectrum sensing method and device applied to LTE230 system
KR102155419B1 (en) Apparatus for adaptive distace measurement base on artificial neural networks
CN102905297A (en) Base station engineering information acquisition method and system
CN107871343A (en) Electronic charging system without parking ETC detecting systems and method
WO2009038916A1 (en) Assisted measurement survey of a wireless communication network
CN101568126A (en) Method for acquiring network path test position information as well as method, device and system for path test
EP2833569B1 (en) Device for automated signal capture and location based on real-time analysis of signal characteristics
JP2019118078A (en) Electric wave use status output device, electric wave use state output method, and electric wave use state output program

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant