CN108243447B - External interference positioning method and device - Google Patents
External interference positioning method and device Download PDFInfo
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Abstract
The invention provides a method and a device for positioning external interference. The method comprises the following steps: acquiring a measurement report MR of a region to be analyzed; calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) according to the Reference Signal Received Power (RSRP) measured value and the Reference Signal Received Quality (RSRQ) measured value of each measuring point; acquiring a set of target measurement points in the region to be analyzed, wherein the Reference Signal Received Quality (RSRQ) measurement value of the target measurement points in the set is smaller than the theoretical minimum value of the Reference Signal Received Quality (RSRQ) obtained through calculation; and positioning the external interference of the area to be analyzed according to the set of the target measuring points. According to the embodiment of the invention, the set of the target measurement points of the area to be analyzed is determined by analyzing the measurement report, the external interference is positioned according to the set of the target measurement points, the complex and fussy external field test operation is not needed, the accuracy of positioning the external interference is improved, and the efficiency of troubleshooting the external interference is improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a device for positioning external interference.
Background
In a wireless network, common interference of a base station is divided into system internal interference and system external interference, the system internal interference is usually caused by base station planning, unreasonable parameter setting and irregular engineering installation, and the system external interference is caused by different-frequency system mutual interference, repeaters, industrial electromechanical equipment, signal lamps, radio station equipment, shielding equipment and the like which coexist or co-exist. The transmission power of the base station is generally much larger than the power of the external interference source, so the external interference generally does not cause interference to the downlink, but affects the normal operation of the uplink of the base station, and therefore, positioning the external interference source becomes an important problem in network optimization and operation and maintenance.
At present, a cross positioning method is generally adopted for eliminating external interference in engineering. As shown in fig. 1, on the premise of determining that external interference exists in the network, a plurality of positions are selected to measure interference power through a spectrum analyzer and a directional antenna, a direction with the strongest interference power is marked at each test position, and finally, a cross point of the direction with the strongest interference power at the plurality of test positions is selected as a distribution position of a suspected external interference source, so that closer-distance positioning is performed, and the range is gradually reduced. The method for cross positioning of external interference adopted in the existing engineering needs to use professional equipment such as a spectrum analyzer and a directional antenna, and needs professional technicians to operate, so that the troubleshooting work of the interference unit is time-consuming and labor-consuming. In addition, in the actual investigation process, it is difficult to accurately determine the direction of the strongest interference at each measurement position, inevitably leading in uncontrollable factors, and greatly increasing the uncertainty of the investigation result. In addition, the external interference generally uses the same frequency as that of the mobile communication system, so when the spectrum analyzer is used for interference measurement, the external interference signal may be submerged under the base station signal of the mobile communication system, and the positioning work cannot be normally performed.
In an existing external interference positioning method, a grid interference matrix is established by using all Measurement Reports (MRs) corresponding to each grid region and incoming interference of a cell in which the grid region is located, whether incoming interference of each grid is smaller than internal interference is judged according to the grid interference matrix, and if the incoming interference is smaller than the internal interference and the grid quality difference MR ratio is higher than a threshold value, it is judged that external interference exists in the grid. The interference matrix is established based on the accurate calculation of the lumped interference power (i.e. the interference), and the uncertainty of the radio channel introduces uncontrollable calculation errors, thereby greatly compromising the accuracy of the method. In addition, the method is mainly oriented to a GSM system, and is not suitable for an LTE system adopting a same-frequency networking technology, and the ratio of the quality difference MR of a grid with serious overlapping coverage in the LTE system is high, so that whether the grid has external interference cannot be judged by setting the ratio threshold of the quality difference MR in the grid.
In another conventional external interference positioning method, it is first determined whether there is uplink external interference, and if there is uplink external interference, the position information of the same interference source is calculated according to propagation loss of an interference signal transmitted to each interfered cell affected by the same interference source, received in-band power of each interfered cell, and a horizontal direction angle of each interfered cell. The effect of external interference positioning in the method mainly depends on the precise calculation of propagation loss, but the uncertainty of a wireless channel can introduce uncontrollable calculation errors, so that the accuracy of the method is greatly reduced.
Disclosure of Invention
The embodiment of the invention provides a method and a device for positioning external interference, which are used for solving the problem of poor positioning accuracy of the existing external interference.
The embodiment of the invention provides a method for positioning external interference, which comprises the following steps:
acquiring a measurement report MR of a region to be analyzed, wherein the measurement report MR comprises Reference Signal Received Power (RSRP) measurement values and Reference Signal Received Quality (RSRQ) measurement values of a plurality of measurement points of the region to be analyzed;
calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) according to the Reference Signal Received Power (RSRP) measured value of each measuring point;
acquiring a set of target measurement points in the region to be analyzed, wherein the Reference Signal Received Quality (RSRQ) measurement value of the target measurement points in the set is smaller than the theoretical minimum value of the Reference Signal Received Quality (RSRQ) obtained through calculation;
and positioning the external interference of the area to be analyzed according to the set of the target measuring points.
Optionally, in the dual-antenna communication mode, the calculating a theoretical minimum value of reference signal received quality RSRQ according to the reference signal received power RSRP measurement value of each measurement point includes:
calculating a theoretical minimum value of reference signal received quality, RSRQ, according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
Optionally, in a single-antenna communication mode, the calculating a theoretical minimum value of reference signal received quality RSRQ according to reference signal received power RSRP measurement values of respective measurement points includes:
calculating a theoretical minimum value of reference signal received quality, RSRQ, according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
Optionally, the locating the external interference of the region to be analyzed according to the set of target measurement points includes:
and determining the geographical position of each target measuring point in the set by adopting a measurement report MR positioning method, and determining the region in which the target measuring points are distributed in a concentrated manner as the position of the external interference.
Optionally, the measurement report MR localization method includes:
a signaling plaintext longitude and latitude method, a drive test data method and a WIFI fingerprint database method.
The embodiment of the invention provides a positioning device for external interference, which comprises:
a measurement report MR obtaining unit, configured to obtain a measurement report MR of a region to be analyzed, where the measurement report MR includes Reference Signal Received Power (RSRP) measurement values and Reference Signal Received Quality (RSRQ) measurement values of a plurality of measurement points of the region to be analyzed;
the receiving quality minimum value acquisition unit is used for calculating a theoretical minimum value of reference signal receiving quality RSRQ according to the reference signal receiving power RSRP measured value of each measuring point;
a target measurement point set acquisition unit, configured to acquire a set of target measurement points in the region to be analyzed, where a reference signal received quality RSRQ measurement value of a target measurement point in the set is smaller than a theoretical minimum value of reference signal received quality RSRQ obtained through calculation;
and the external interference positioning unit is used for positioning the external interference of the area to be analyzed according to the set of the target measuring points.
Optionally, the minimum receiving quality obtaining unit is further configured to:
in the dual antenna communication mode, a theoretical minimum value of reference signal received quality, RSRQ, is calculated according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
Optionally, the minimum receiving quality obtaining unit is further configured to:
in the single antenna communication mode, a theoretical minimum value of reference signal received quality, RSRQ, is calculated according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
Optionally, the external interference localization unit is further configured to:
and determining the geographical position of each target measuring point in the set by adopting a measurement report MR positioning method, and determining the region in which the target measuring points are distributed in a concentrated manner as the position of the external interference.
Optionally, the measurement report MR localization method includes: a signaling plaintext longitude and latitude method, a drive test data method and a WIFI fingerprint database method.
The method and the device for positioning the external interference, provided by the embodiment of the invention, are used for obtaining a measurement report MR of a region to be analyzed, wherein the measurement report MR comprises Reference Signal Received Power (RSRP) measurement values and Reference Signal Received Quality (RSRQ) measurement values of a plurality of measurement points of the region to be analyzed; calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) according to the Reference Signal Received Power (RSRP) measured value and the Reference Signal Received Quality (RSRQ) measured value of each measuring point; acquiring a set of target measurement points in the region to be analyzed, wherein the Reference Signal Received Quality (RSRQ) measurement value of the target measurement points in the set is smaller than the theoretical minimum value of the Reference Signal Received Quality (RSRQ) obtained through calculation; and positioning the external interference of the area to be analyzed according to the set of the target measuring points. According to the embodiment of the invention, the set of the target measurement points of the area to be analyzed is determined by analyzing the measurement report, the external interference is positioned according to the set of the target measurement points, the complex and fussy external field test operation is not needed, the accuracy of positioning the external interference is improved, and the efficiency of troubleshooting the external interference is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art method for locating external interference using cross-location;
FIG. 2 is a flow chart of a method for locating an external disturbance according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an external disturbance locating device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 is a flowchart illustrating a method for locating an external interference according to an embodiment of the present invention. As shown in fig. 2, the method of this embodiment includes:
s21: acquiring a measurement report MR of a region to be analyzed, wherein the measurement report MR comprises Reference Signal Received Power (RSRP) measurement values and Reference Signal Received Quality (RSRQ) measurement values of a plurality of measurement points of the region to be analyzed;
it should be noted that measurement is an important function of the communication system, and the communication system performs triggering of events such as cell selection and handover based on measurement information. Analysis of the measurement reports may discover problems in the network.
In practical application, according to the 3GPP standard, all terminals in the RRC connected state need to report measurement data, where the reported measurement data includes reference signal received power, RSRP, measurement values and reference signal received quality, RSRQ, measurement values of a serving cell and neighboring cells of the terminal, and the network management system NMS generates a measurement report MR according to the measurement data reported by the terminals.
S22: calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) according to the Reference Signal Received Power (RSRP) measured value and the Reference Signal Received Quality (RSRQ) measured value of each measuring point;
it should be noted that the reference signal received quality RSRQ reaches the theoretical minimum value when the serving cell and the neighboring cell of the terminal utilize 100% of the downlink physical layer time-frequency resources PRB.
S23: acquiring a set of target measurement points in the region to be analyzed, wherein the Reference Signal Received Quality (RSRQ) measurement value of the target measurement points in the set is smaller than the theoretical minimum value of the Reference Signal Received Quality (RSRQ) obtained through calculation;
it should be noted that, when an external interfering device exists in the network, the actual RSRQ value measured by a terminal located near the external interfering device may be smaller than the theoretically calculated minimum RSRQ valueminTherefore, the idea can be used to locate a target measurement point suspected to be subject to external interference.
S24: positioning external interference of the area to be analyzed according to the set of target measurement points;
it should be noted that, in the embodiment of the present invention, a measurement report MR positioning method may be adopted to determine the geographic position of each target measurement point in the set, and determine a region where the target measurement points are distributed in a concentrated manner as the position of the external interference. In practical application, the measurement report MR localization method includes: a signaling plaintext longitude and latitude method, a drive test data method and a WIFI fingerprint database method.
The embodiment of the invention can avoid uncontrollable errors introduced by centralized interference calculation in the process of establishing the interference matrix in the prior art, avoid errors introduced in the process of calculating propagation loss and improve the accuracy of interference analysis.
According to the external interference positioning method provided by the embodiment of the invention, the set of target measurement points of the region to be analyzed is determined by analyzing the measurement report, and the external interference is positioned according to the set of target measurement points, so that complex and tedious external field test operation is not required, the accuracy of external interference positioning is improved, and the efficiency of external interference investigation is improved.
It should be noted that, according to the 3GPP standard, the value of the reference signal received quality RSRQ is equal to:
wherein, N is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signal. A typical value is the full bandwidth of the system, e.g. 100 for a 20M LTE system.
In an optional implementation manner of the embodiment of the present invention, in a dual-antenna communication mode, the calculating a theoretical minimum value of reference signal received quality RSRQ according to a reference signal received power RSRP measurement value of each measurement point includes:
calculating a theoretical minimum value of reference signal received quality, RSRQ, according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
In another optional implementation manner of the embodiment of the present invention, in a single antenna communication mode, the calculating a theoretical minimum value of reference signal received quality RSRQ according to a reference signal received power RSRP measurement value of each measurement point includes:
calculating a theoretical minimum value of reference signal received quality, RSRQ, according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
In practical application, measurement data reported by a terminal is contained in MRO sample data, reference signal received power, RSRP, and reference signal received quality, RSRQ, of a serving cell and an adjacent cell are measurement data that the terminal must report, and according to a report result, data in the following table can be obtained:
| measurement object | RSRP(mw) | RSRQ(dB) |
| Serving cell | RSRP-0 | RSRQ-0 |
| Same frequency adjacent region 1 | RSRP-1 | RSRQ-1 |
| Same frequency adjacent region 2 | RSRP-2 | RSRQ-2 |
| Same frequency adjacent region 3 | RSRP-3 | RSRQ-3 |
| ……. | …… | …….. |
| Same-frequency adjacent region m | RSRP-m | RSRQ-m |
And calculating the theoretical minimum value of the Reference Signal Received Quality (RSRQ) of the service cell and the adjacent cell of the terminal according to the measurement result of the RSRP signals of the service cell and the adjacent cell at each measurement moment of the terminal.
The positioning method of the external interference provided by the embodiment of the invention adopts the standardized measurement report of the LTE system for analysis, does not need to additionally transform the existing network, has the characteristics of high efficiency, high accuracy, convenient implementation and the like, does not need to carry out complicated and fussy external field test operation, improves the accuracy of positioning the external interference and improves the efficiency of checking the external interference.
Fig. 3 is a schematic structural diagram of an external disturbance positioning device according to an embodiment of the present invention. As shown in fig. 3, the apparatus of the embodiment of the present invention includes a measurement report MR obtaining unit 31, a minimum receiving quality obtaining unit 32, a target measurement point set obtaining unit 33, and an external interference locating unit 34, specifically:
a measurement report MR obtaining unit 31, configured to obtain a measurement report MR of a region to be analyzed, where the measurement report MR includes reference signal received power, RSRP, measurement values and reference signal received quality, RSRQ, measurement values of multiple measurement points of the region to be analyzed;
a receiving quality minimum value obtaining unit 32, configured to calculate a theoretical minimum value of reference signal receiving quality RSRQ according to a reference signal receiving power RSRP measurement value of each measurement point;
a target measurement point set obtaining unit 33, configured to obtain a set of target measurement points in the region to be analyzed, where a reference signal received quality RSRQ measurement value of a target measurement point in the set is smaller than a theoretical minimum value of reference signal received quality RSRQ obtained through calculation;
an external interference positioning unit 34, configured to position external interference of the area to be analyzed according to the set of target measurement points.
The reception quality minimum value obtaining unit 32 is further configured to:
in the dual antenna communication mode, a theoretical minimum value of reference signal received quality, RSRQ, is calculated according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
The reception quality minimum value obtaining unit 32 is further configured to:
in the single antenna communication mode, a theoretical minimum value of reference signal received quality, RSRQ, is calculated according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of physical layer time-frequency resource PRB.
The external disturbance positioning unit 34 is further configured to:
and determining the geographical position of each target measuring point in the set by adopting a measurement report MR positioning method, and determining the region in which the target measuring points are distributed in a concentrated manner as the position of the external interference.
Optionally, the measurement report MR localization method includes: a signaling plaintext longitude and latitude method, a drive test data method and a WIFI fingerprint database method.
The positioning device for external interference according to the embodiment of the present invention may be used to implement the above method embodiments, and the principle and technical effects are similar, which are not described herein again.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Referring to fig. 4, the electronic device includes: a processor (processor)41, a memory (memory)42, and a bus 43; wherein the content of the first and second substances,
the processor 41 and the memory 42 communicate with each other via a bus 43;
the processor 41 is used to call program instructions in the memory 42 to perform the method for locating external disturbances provided by the above-described embodiments of the methods.
Furthermore, the logic instructions in the memory 42 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The present embodiments provide a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the method embodiments described above.
The method and the device for positioning the external interference, provided by the embodiment of the invention, are used for obtaining a measurement report MR of a region to be analyzed, wherein the measurement report MR comprises Reference Signal Received Power (RSRP) measurement values and Reference Signal Received Quality (RSRQ) measurement values of a plurality of measurement points of the region to be analyzed; calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) according to the Reference Signal Received Power (RSRP) measured value and the Reference Signal Received Quality (RSRQ) measured value of each measuring point; acquiring a set of target measurement points in the region to be analyzed, wherein the Reference Signal Received Quality (RSRQ) measurement value of the target measurement points in the set is smaller than the theoretical minimum value of the Reference Signal Received Quality (RSRQ) obtained through calculation; and positioning the external interference of the area to be analyzed according to the set of the target measuring points. According to the embodiment of the invention, the set of the target measurement points of the area to be analyzed is determined by analyzing the measurement report, the external interference is positioned according to the set of the target measurement points, the complex and fussy external field test operation is not needed, the accuracy of positioning the external interference is improved, and the efficiency of troubleshooting the external interference is improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
The above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for locating an external disturbance, comprising:
acquiring a measurement report MR of a region to be analyzed, wherein the measurement report MR comprises Reference Signal Received Power (RSRP) measurement values and Reference Signal Received Quality (RSRQ) measurement values of a plurality of measurement points of the region to be analyzed;
calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) according to the Reference Signal Received Power (RSRP) measured value of each measuring point;
acquiring a set of target measurement points in the region to be analyzed, wherein the Reference Signal Received Quality (RSRQ) measurement value of the target measurement points in the set is smaller than the theoretical minimum value of the Reference Signal Received Quality (RSRQ) obtained through calculation;
and positioning the external interference of the area to be analyzed according to the set of the target measuring points.
2. The method of claim 1, wherein in the dual-antenna communication mode, said calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) from Reference Signal Received Power (RSRP) measurements at respective measurement points comprises:
calculating a theoretical minimum value of reference signal received quality, RSRQ, according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of a physical layer time frequency resource PRB; RSRPsIs a reference signal received power, RSRP, measurement for the serving cell s.
3. The method of claim 1, wherein in the single antenna communication mode, said calculating a theoretical minimum value of Reference Signal Received Quality (RSRQ) from Reference Signal Received Power (RSRP) measurements at respective measurement points comprises:
calculating a theoretical minimum value of reference signal received quality, RSRQ, according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of a physical layer time frequency resource PRB; RSRPsReference signal received power, RSRP, measurement for serving cell s。
4. The method of claim 1, wherein locating the external disturbance of the region to be analyzed from the set of target measurement points comprises:
and determining the geographical position of each target measuring point in the set by adopting a measurement report MR positioning method, and determining the region in which the target measuring points are distributed in a concentrated manner as the position of the external interference.
5. The method of claim 4, wherein the measurement report MR localization method comprises:
a signaling plaintext longitude and latitude method, a drive test data method and a WIFI fingerprint database method.
6. An external disturbance locating device, comprising:
a measurement report MR obtaining unit, configured to obtain a measurement report MR of a region to be analyzed, where the measurement report MR includes Reference Signal Received Power (RSRP) measurement values and Reference Signal Received Quality (RSRQ) measurement values of a plurality of measurement points of the region to be analyzed;
the receiving quality minimum value acquisition unit is used for calculating a theoretical minimum value of reference signal receiving quality RSRQ according to the reference signal receiving power RSRP measured value of each measuring point;
a target measurement point set acquisition unit, configured to acquire a set of target measurement points in the region to be analyzed, where a reference signal received quality RSRQ measurement value of a target measurement point in the set is smaller than a theoretical minimum value of reference signal received quality RSRQ obtained through calculation;
and the external interference positioning unit is used for positioning the external interference of the area to be analyzed according to the set of the target measuring points.
7. The apparatus of claim 6, wherein the reception quality minimum obtaining unit is further configured to:
in the dual antenna communication mode, a theoretical minimum value of reference signal received quality, RSRQ, is calculated according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of a physical layer time frequency resource PRB; RSRPsIs a reference signal received power, RSRP, measurement for the serving cell s.
8. The apparatus of claim 6, wherein the reception quality minimum obtaining unit is further configured to:
in the single antenna communication mode, a theoretical minimum value of reference signal received quality, RSRQ, is calculated according to the following formula:
wherein, RSRQs-minIs the theoretical minimum value of Reference Signal Received Quality (RSRQ); n is the measurement bandwidth of the received average power RSSI of the OFDM symbols containing the reference signals; m is the set of cells of the area to be analyzed; k is the ratio of the transmission power of the reference signal to the transmission power of the corresponding resource element RE; noise _ PRB is thermal Noise of a physical layer time frequency resource PRB; RSRPsIs a reference signal received power, RSRP, measurement for the serving cell s.
9. The apparatus of claim 6, wherein the external interference location unit is further configured to:
and determining the geographical position of each target measuring point in the set by adopting a measurement report MR positioning method, and determining the region in which the target measuring points are distributed in a concentrated manner as the position of the external interference.
10. The apparatus of claim 9, wherein the measurement report MR localization method comprises: a signaling plaintext longitude and latitude method, a drive test data method and a WIFI fingerprint database method.
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