CN115243193B - Method and device for determining position of stimulated interference source and computer readable storage medium - Google Patents

Method and device for determining position of stimulated interference source and computer readable storage medium Download PDF

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Publication number
CN115243193B
CN115243193B CN202210800252.7A CN202210800252A CN115243193B CN 115243193 B CN115243193 B CN 115243193B CN 202210800252 A CN202210800252 A CN 202210800252A CN 115243193 B CN115243193 B CN 115243193B
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signal
time period
base station
determining
interference source
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CN115243193A (en
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王伟
李福昌
李新玥
吕婷
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

The application provides a method and a device for determining the position of an excited interference source and a computer readable storage medium, relates to the field of communication, and can improve the accuracy of the determined position of the excited interference source under the condition that the number of UE around the excited interference source is small. The method comprises the following steps: acquiring a signal group of each base station in N base stations and the position of each base station to obtain the positions of the N signal groups and the N base stations; the signal group of one base station comprises a first signal in a first time period transmitted by the one base station and a second signal in a second time period received by the one base station; the first time-frequency correlation between the first signal and the second signal is greater than a first threshold; according to each signal group in the N signal groups, determining the distance from each base station to the stimulated interference source to obtain N distances; and determining the position of the stimulated interference source according to the position of each base station in the positions of the N base stations and the N distances.

Description

Method and device for determining position of stimulated interference source and computer readable storage medium
Technical Field
The present application relates to the field of communications, and in particular, to a method and apparatus for determining a position of an excited interference source, and a computer readable storage medium.
Background
In a mobile communication system, an excited interference source, which is not subjected to signal approval and illegally uses a frequency band, may generate excited interference to a communication device. Because the stimulated interference sources without signal approval and illegally used frequency bands have the characteristic of secrecy, in order to manage the stimulated interference sources, the positions of the stimulated interference sources within a certain coverage area of the communication equipment need to be determined.
Taking as an example that a repeater that does not receive signal approval and illegally uses a frequency band generates interference to a base station, one existing scheme is to determine the location of the repeater based on the location of a User Equipment (UE), specifically, determine the location of the repeater according to measurement report (measurement report, MR) data at a terminal side, minimization of DRIVE TESTS (MDT) data and a specific algorithm.
In theory, the more the number of the UE distributed around the stimulated interference sources, the more accurate the determined positions of the stimulated interference sources, and the scheme needs to distribute enough UE around the stimulated interference sources, so that the accuracy of the determined positions of the stimulated interference sources can meet the requirement. Since the number of UEs distributed around the stimulated interferer is often not as high as required, the accuracy of the position of the stimulated interferer determined by the existing method is low with a small number of UEs around the stimulated interferer.
Disclosure of Invention
In the case of solving the problem that the accuracy of the position of the stimulated interference sources determined by the existing method is low under the condition that the number of the UE around the stimulated interference sources is small.
The application provides a method, a device and a computer readable storage medium for determining the position of an excited interference source, which can improve the accuracy of the determined position of the excited interference source under the condition that the number of UE around the excited interference source is small.
In order to achieve the above purpose, the application adopts the following technical scheme:
In a first aspect, a method of determining a position of an excited interferer is provided, the method being executable by a position determining device of the excited interferer, the method comprising: acquiring a signal group of each base station in N base stations and the position of each base station to obtain the positions of the N signal groups and the N base stations; the signal group of one base station comprises a first signal in a first time period transmitted by one base station and a second signal in a second time period received by one base station, wherein the starting time of the second time period is the same as the starting time of the first time period, and the ending time of the second time period is later than the ending time of the first time period; the first time-frequency correlation between the first signal and the second signal is larger than a first threshold value, and N is a natural number larger than 2; according to each signal group in the N signal groups, determining the distance from each base station to the stimulated interference source to obtain N distances; and determining the position of the stimulated interference source according to the position of each base station in the positions of the N base stations and the N distances.
Based on the scheme, the distance from each base station to the stimulated interference source is obtained according to the signal groups of each base station by acquiring the signal groups of each base station and the positions of each base station in N base stations, and finally the positions of the stimulated interference sources are determined according to the distance from each base station to the stimulated interference source and the positions of each base station. Compared with the prior art, the method and the device for determining the position of the stimulated interference source based on the first signals transmitted by the plurality of base stations and the second signals received by the plurality of base stations are not limited by the number of the UE around the stimulated interference source, so that the accuracy of the determined position of the stimulated interference source can be improved under the condition that the number of the UE around the stimulated interference source is small.
With reference to the first aspect, in certain implementation manners of the first aspect, determining, according to each signal group of the N signal groups, a distance from each base station to the stimulated interference source includes: determining a third time period corresponding to each signal group according to each signal group in the N signal groups; the third time period is a time period corresponding to the maximum value of the second time-frequency correlation between the first signal and the second signal; and determining the distance from each base station to the stimulated interference source according to the third time period corresponding to each signal group.
Based on the scheme, the distance from each base station to the stimulated interference source can be determined according to the third time period corresponding to each base station by determining the third time period when the second time-frequency correlation value between the first signal and the second signal in each signal group is maximum.
With reference to the first aspect, in certain implementation manners of the first aspect, determining, according to each signal group of the N signal groups, a third time period corresponding to each signal group includes: obtaining a fourth time period according to the coverage radius of the base station corresponding to each signal group in the N signal groups; the signal strength of the first signal at the coverage edge of the base station is equal to the second threshold, and the coverage radius and the fourth time period satisfy the following relationship: r=v× (t/2); wherein R represents a coverage radius, v represents a speed of light, and t represents a fourth time period; determining a plurality of sub-time periods corresponding to the fourth time period according to a preset step length; determining a second time-frequency correlation between the first signal and the second signal corresponding to each sub-time period, and obtaining a plurality of second time-frequency correlations; and taking the sub-time period corresponding to the second time-frequency correlation with the maximum value as a third time period.
Based on this scheme, the third time period corresponding to each signal group can be determined.
With reference to the first aspect, in certain implementation manners of the first aspect, N is equal to 3, and determining the position of the excited interference source according to the position of each of the N base stations and the N distances includes: and processing the position of each base station in the positions of the N base stations and the distance between each base station in the N distances and the stimulated interference source based on a triangulation method, and determining the position of the stimulated interference source.
In a second aspect, a position determining device of an excited interference source is provided for implementing the position determining method of the excited interference source of the first aspect. The position determining device of the stimulated interference source comprises a corresponding module, unit or means (means) for realizing the method, wherein the module, unit or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.
With reference to the second aspect, in certain embodiments of the second aspect, the position determining device of the stimulated interference source includes: the device comprises an acquisition module and a processing module; the acquisition module is used for acquiring the signal group of each base station in the N base stations and the position of each base station to obtain the positions of the N signal groups and the N base stations; the signal group of one base station comprises a first signal in a first time period transmitted by one base station and a second signal in a second time period received by one base station, wherein the starting time of the second time period is the same as the starting time of the first time period, and the ending time of the second time period is later than the ending time of the first time period; the first time-frequency correlation between the first signal and the second signal is larger than a first threshold value, and N is a natural number larger than 2; the processing module is used for determining the distance from each base station to the stimulated interference source according to each signal group in the N signal groups to obtain N distances; and the processing module is also used for determining the position of the stimulated interference source according to the position of each base station in the positions of the N base stations and the N distances.
With reference to the second aspect, in some implementations of the second aspect, the processing module is configured to determine, according to each of the N signal groups, a distance between each base station and the excited interference source, and specifically includes: determining a third time period corresponding to each signal group according to each signal group in the N signal groups; the third time period is a time period corresponding to the maximum value of the second time-frequency correlation between the first signal and the second signal; and determining the distance from each base station to the stimulated interference source according to the third time period corresponding to each signal group.
With reference to the second aspect, in certain implementation manners of the second aspect, the processing module is further configured to determine, according to each signal group of the N signal groups, a third period of time corresponding to each signal group, including: obtaining a fourth time period according to the coverage radius of the base station corresponding to each signal group in the N signal groups; the signal strength of the first signal at the coverage edge of the base station is equal to the second threshold, and the coverage radius and the fourth time period satisfy the following relationship: r=v× (t/2); wherein R represents a coverage radius, v represents a speed of light, and t represents a fourth time period; determining a plurality of sub-time periods corresponding to the fourth time period according to a preset step length; determining a second time-frequency correlation between the first signal and the second signal corresponding to each sub-time period, and obtaining a plurality of second time-frequency correlations; and taking the sub-time period corresponding to the second time-frequency correlation with the maximum value as a third time period.
With reference to the second aspect, in certain embodiments of the second aspect, N is equal to 3, and the processing module is configured to determine the location of the excited interference source further according to the location of each of the N base stations and the N distances, including: and processing the position of each base station in the positions of the N base stations and the distance between each base station in the N distances and the stimulated interference source based on a triangulation method, and determining the position of the stimulated interference source.
In a third aspect, there is provided a position determining apparatus of an excited interference source, comprising: at least one processor, a memory for storing instructions executable by the processor; wherein the processor is configured to execute instructions to implement a method as provided by the first aspect and any one of its possible implementations.
In a fourth aspect, a computer readable storage medium is provided, which when executed by a processor of a position determining device of an excited interferer enables the position determining device of the excited interferer to perform a method as provided by the first aspect and any possible implementation thereof.
In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, enable the computer to perform the method provided by the first aspect and any one of its possible embodiments.
In a sixth aspect, there is provided a chip system comprising: a processor and interface circuit; interface circuit for receiving computer program or instruction and transmitting to processor; the processor is configured to execute a computer program or instructions to cause the chip system to perform a method as provided in the first aspect and any one of its possible embodiments described above.
The technical effects of any one of the embodiments of the second aspect to the sixth aspect may be referred to the technical effects of the different embodiments of the first aspect, and are not described herein.
Drawings
FIG. 1 is a schematic diagram of an architecture of a position determining system for an excited interference source according to the present application;
FIG. 2 is a schematic flow chart of a method for determining the position of an excited interference source according to the present application;
FIG. 3 is a flow chart of a method for determining the position of an excited interference source according to the present application;
fig. 4 is a schematic diagram of a configuration of a base station receiving signal according to the present application;
FIG. 5a is a schematic flow chart of a method for determining a position of an excited interference source according to the present application;
FIG. 5b is a schematic diagram illustrating a position determination of an excited interference source according to the present application;
FIG. 6 is a schematic diagram of a position determining device for an excited interference source according to the present application;
Fig. 7 is a schematic structural diagram of a position determining device of another excited interference source according to the present application.
Detailed Description
In the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.
Meanwhile, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.
It is appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
It is to be understood that, in the present application, "when …", "if" and "if" all mean that the corresponding process is performed under some objective condition, and are not limited in time, nor do it require that there be any judgment in the implementation, nor are other limitations meant to be implied.
It can be appreciated that some optional features of the embodiments of the present application may be implemented independently in some scenarios, independent of other features, such as the scheme on which they are currently based, to solve corresponding technical problems, achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the device provided in the embodiment of the present application may also implement these features or functions accordingly, which will not be described herein.
In the present application, the same or similar parts between the embodiments may be referred to each other unless specifically stated otherwise. In the embodiments of the present application and the implementation methods in the embodiments, if there is no special description and logic conflict, terms and/or descriptions between different embodiments and between implementation methods in the embodiments have consistency and may be mutually cited, and technical features in the different embodiments and the implementation methods in the embodiments may be combined to form a new embodiment, implementation method, or implementation method according to the inherent logic relationship. The following embodiments of the present application are not intended to limit the scope of the present application.
Fig. 1 is a schematic diagram of an architecture of a position determining system of an excited interference source provided by the present application, and the technical solution of the embodiment of the present application may be applied to the position determining system of an excited interference source shown in fig. 1, where, as shown in fig. 1, the position determining system 10 of an excited interference source includes a position determining device 11 of an excited interference source and an electronic device 12.
The position determining device 11 of the excited interference source is directly connected or indirectly connected to the electronic device 12, and in this connection relationship, the connection may be wired or wireless.
The position determining means 11 of the excited interference source may be used to receive data from the electronic device 12.
The electronic device 12 may be used to send data to the position determining means 11 of the excited interference source.
The position determining device 11 of the stimulated interference source and the electronic device 12 may be independent devices or may be integrated in the same device, which is not particularly limited in the present application.
When the position determining means 11 of the stimulated interference source and the electronic device 12 are integrated in the same device, the communication between the position determining means 11 of the stimulated interference source and the electronic device 12 is a communication between the internal modules of the device. In this case, the communication flow therebetween is the same as "in the case where the position determining device 11 of the stimulated interference source and the electronic device 12 are independent of each other".
In the following embodiments provided by the present application, the present application is described taking an example in which the position determining device 11 of the excited interference source and the electronic device 12 are provided independently of each other.
In practical applications, the method for determining the position of the stimulated interference source provided by the embodiment of the application can be applied to the device 11 for determining the position of the stimulated interference source, and can also be applied to devices included in the device 11 for determining the position of the stimulated interference source.
The method for determining the position of the stimulated interference source provided by the embodiment of the present application will be described below by taking the example in which the method for determining the position of the stimulated interference source is applied to the device for determining the position of the stimulated interference source 11.
For convenience of description, in the following detailed description, the position determining device of the stimulated interference source is simply referred to as a position determining device, and is generally described herein, which will not be described in detail later.
Fig. 2 is a schematic flow chart of a method for determining the position of an excited interference source, as shown in fig. 2, the method includes the following steps:
S201, a position determining device obtains the signal group of each base station in N base stations and the position of each base station, and obtains the positions of the N signal groups and the N base stations.
The signal group of one base station comprises a first signal in a first time period transmitted by the one base station and a second signal in a second time period received by the one base station, wherein the starting time of the second time period is the same as the starting time of the first time period, and the ending time of the second time period is later than the ending time of the first time period; the first time-frequency correlation between the first signal and the second signal is greater than a first threshold, and N is a natural number greater than 2.
It should be noted that, the base station may be an evolved base station (evolutional Node B, eNB or eNodeB) in A long term evolution (long term evolution, LTE) system or an evolved LTE system (LTE-advanced, LTE-A), such as A conventional macro base station eNB and A micro base station eNB in A heterogeneous network scenario; or may be a next generation node B (next generation node B, gNodeB or gNB) in a fifth generation (5th generation,5G) mobile communications network; or may be a transmission reception point (transmission reception point, TRP); or may be a base station in a future evolved public land mobile network (public land mobile network, PLMN), to which the present application is not limited.
The first signal is a precoded signal.
The frequency band corresponding to the first signal is different from the frequency band corresponding to the second signal. The frequency band corresponding to the first signal is a transmitting frequency band of the base station, for example, the frequency band corresponding to the first signal may be 5 megahertz (mega hertz), the frequency band corresponding to the first signal may be 10MHz, or the frequency band corresponding to the first signal may also be 20MHz, which is not limited in the present application.
The frequency band corresponding to the second signal is a receiving frequency band of the base station, for example, the frequency band corresponding to the second signal may be 6MHz, the frequency band corresponding to the second signal may be 11MHz, or the frequency band corresponding to the second signal may be 16 MHz.
The first time period may be a time period of any length, for example, the first time period may be 10 milliseconds (millisecond, ms), the first time period may be 20ms, or the first time period may be 30ms, as the application is not limited in this regard.
The second period may be any period longer than the first period, for example, in the case where the first period is 10ms, the second period may be 15ms, the second period may be 20ms, or the second period may be 25ms, which is not limited in this aspect of the present application.
The end of the second time period is later than the end of the first time period, since a certain time is required for the signal to propagate in the channel.
The location of the base station may be the longitude and latitude of the base station, for example, the location of the base station may be 39 degrees 54 minutes and 20 seconds north latitude, 116 degrees 23 minutes east longitude, or the location of the base station may be 40 degrees 54 minutes and 20 seconds north latitude, 117 degrees 23 minutes east longitude, which is not limited in this regard.
The duration of the first time period, the starting time of the first time period, the ending time of the first time period, the coding mode of the first signal, the duration of the second time period and the ending time of the second time period corresponding to different signal groups can be the same or different, and the application is not limited to this.
Taking the first time period as an example of 10ms, if the duration of the unit time period of the first signal is 1ms, each unit time period includes 25 physical resource blocks (Physical Resource Block, prbs), and the first signal may be as shown in the following matrix R1:
Wherein the first column in the R1 matrix represents 25 PRBs for the first unit period, the second column represents 25 PRBs for the second unit period, the third column/> represents 25 PRBs for the third unit period, and so on.
M (0, 0) represents a first PRB of a first unit period, M (1, 0) represents a second PRB of the first unit period, M (0, 1) represents a first PRB of a second unit period, M (1, 1) represents a second PRB of the second unit period, M (0, 2) represents a first PRB of a third unit period, M (1, 2) represents a second PRB of the third unit period, and so on.
Taking the example of the first signal described above as an example, the second signal may be represented by the following matrix R2:
Wherein t 0 represents the difference between the end time of the second period and the end time of the first period. The first column in the R2 matrix represents 25 PRBs for the first unit period, the second column/> represents 25 PRBs for the second unit period, the third column/> represents 25 PRBs for the third unit period, and so on.
N (0, t 0 +0) represents a first PRB of a first unit period, N (1, t 0 +0) represents a second PRB of the first unit period, N (0, t 0 +1) represents a first PRB of the second unit period, N (1, t 0 +1) represents a second PRB of the second unit period, N (0, t 0 +2) represents a first PRB of a third unit period, N (1, t 0 +2) represents a second PRB of the third unit period, and so on.
The first threshold may be 0.7, the first threshold may be 0.75, or the first threshold may be 0.8, which is not limited in this regard.
The time-frequency correlation between the first signal and the second signal is as follows:
Where ρ represents the time-frequency correlation between the first signal and the second signal, and the specific calculation manner of the time-frequency correlation between the first signal and the second signal may refer to the existing scheme, which is not described herein.
As one possible implementation, in connection with fig. 1, the position determining apparatus receives data from the electronic device 12, which includes N signal groups.
As yet another possible implementation manner, the location determining device receives data from each of the N base stations, where the data of one base station includes a signal group of one base station and a location of one base station, to obtain the N signal groups and the locations of the N base stations.
S202, the position determining device determines the distance from each base station to the stimulated interference source according to each signal group in the N signal groups to obtain N distances.
As a possible implementation manner, the position determining device determines, according to each signal group in the N signal groups, a third time period corresponding to when the second time-frequency correlation between the first signal and the second signal is the largest, so as to obtain a third time period corresponding to each base station, and determines, according to the third time period corresponding to each base station, a distance from each base station to the stimulated interference source, so as to obtain N distances.
It should be noted that, the detailed description of the possible implementation manner may refer to the detailed implementation manner of the subsequent part, and the present application is not repeated herein.
S203, the position determining device determines the position of the stimulated interference source according to the position of each base station in the positions of the N base stations and the N distances.
As a possible implementation, the position determining means determines the position of the excited interference source according to the position of each of the N base stations and the N distances in combination with the triangulation method.
It should be noted that, the detailed description of the possible implementation manner may refer to the detailed implementation manner of the subsequent part, and the present application is not repeated herein.
Based on the scheme, the distance from each base station to the stimulated interference source is obtained according to the signal groups of each base station by acquiring the signal groups of each base station and the positions of each base station in N base stations, and finally the positions of the stimulated interference sources are determined according to the distance from each base station to the stimulated interference source and the positions of each base station. Compared with the prior art, the method and the device for determining the position of the stimulated interference source based on the first signals transmitted by the plurality of base stations and the second signals received by the plurality of base stations are not limited by the number of the UE around the stimulated interference source, so that the accuracy of the determined position of the stimulated interference source can be improved under the condition that the number of the UE around the stimulated interference source is small.
The foregoing has outlined the general description of the application and the further description of the application is provided below.
In one design, fig. 3 is a flow chart of another method for determining a position of an excited interference source provided by the present application, as shown in fig. 3, S202 provided by the present application specifically includes:
S301, the position determining device determines a third time period corresponding to each signal group according to each signal group in the N signal groups.
The third time period is a time period corresponding to the time period when the second time-frequency correlation between the first signal and the second signal is the maximum.
As a possible implementation manner, the position determining device determines a fourth time period corresponding to each signal group according to the base station corresponding to each signal group in the N signal groups, and determines a third time period corresponding to each signal group according to the fourth time period corresponding to each signal group, where the fourth time period is twice the time period required by the signal transmitted by the base station to reach the coverage area edge of the base station.
It should be noted that, the detailed description of the possible implementation manner may refer to the detailed implementation manner of the subsequent part, and the present application is not repeated herein.
S302, the position determining device determines the distance from each base station to the stimulated interference source according to the third time period corresponding to each signal group.
It should be noted that, fig. 4 is a schematic diagram of a configuration of a base station receiving signal provided by the present application, and as shown in fig. 4, the signal received by the base station includes a own cell signal transmitted by a terminal in a own cell, an adjacent cell interference signal transmitted by an adjacent cell, and an excited interference signal transmitted by an excited interference source, so that the second signal includes multiple signals. The third time period is a time period corresponding to the time period when the second time-frequency correlation between the first signal and the second signal is the maximum, so that after the base station transmits the first signal, the base station receives the stimulated signal of the first signal included in the second signal after the third time period, and further, the third time period is the time required for the first signal to reach the stimulated interference source from the base station and then reach the base station from the stimulated interference source.
As a possible implementation manner, the position determining device takes the product of the third time period corresponding to each base station and the speed of light as the distance from each base station to the stimulated interference source.
Based on the scheme, the distance from each base station to the stimulated interference source can be determined according to the third time period corresponding to each base station by determining the third time period when the second time-frequency correlation value between the first signal and the second signal in each signal group is maximum.
In one design, fig. 5a is a flow chart of another method for determining a position of an excited interference source provided by the present application, as shown in fig. 5a, S301 provided by the present application specifically includes:
S501, the position determining device obtains a fourth time period according to the coverage radius of the base station corresponding to each of the N signal groups.
Wherein the signal strength of the first signal at the coverage edge of the base station is equal to the second threshold, and the coverage radius and the fourth time period satisfy the following relationship:
R＝v×(t/2)
Where R represents the coverage radius, v represents the speed of light, and t represents the fourth time period.
It should be noted that the second threshold may be a minimum signal strength at which a signal transmitted by the base station can be detected. For example, the second threshold may be-95 decibel milliwatts (decibel relative to one milliwatt, dBm), the second threshold may be-100 dBm, or the second threshold may be-90 dBm, as the application is not limited in this regard.
Taking a coverage radius of 5000 meters ((metre, m), for example, a speed of light of 299792458 meters/second (metre/second, m/s), the coverage radius and the fourth time period satisfy 5000= 299792458 × (t/2), the fourth time period t= 0.00001668 s= 0.01688ms.
S502, the position determining device determines a plurality of sub-time periods corresponding to the fourth time period according to a preset step length.
It should be noted that the preset step length may be 0.001ms, the preset step length may be 0.002ms, or the preset step length may be 0.003ms, which is not limited in this aspect of the present application.
As a possible implementation manner, taking a preset step size of 0.001ms and a fourth time period of 0.01688ms as an example, the position determining device determines that a plurality of sub-time periods in the third time period are 0.00188ms、0.00288ms、0.00388ms、0.00488ms、0.00588ms、0.00688ms、0.00788ms、0.00888ms、0.00988ms、0.01088ms、0.01188ms、0.01288ms、0.01388ms、0.01488ms、0.01588ms、0.01688ms.
S503, the position determining device determines second time-frequency correlation between the first signal and the second signal corresponding to each sub-time period, and a plurality of second time-frequency correlations are obtained.
As a possible implementation, taking the plurality of sub-time periods in S502 as an example, the position determining device determines that the second time-frequency correlation between the first signal and the second signal corresponding to the sub-time period 0.00188ms is
The position determining device determines that the second time-frequency correlation between the first signal and the second signal corresponding to the sub-time period 0.00288ms is
The position determining device determines that the second time-frequency correlation between the first signal and the second signal corresponding to the sub-time period 0.00388ms is
And so on, the position determining device determines second time-frequency correlations between the first signal and the second signal corresponding to each sub-time period, and a plurality of second time-frequency correlations are obtained.
It should be noted that, the specific manner of determining the second time-frequency correlation between the first signal and the second signal by using the possible implementation manner may refer to an existing scheme, and the disclosure is not repeated herein.
S504, the position determining device takes the sub-time period corresponding to the second time-frequency correlation with the largest value as a third time period.
As a possible implementation, taking S503 as an example, the position determining device compares the values of the second time-frequency correlations between the first signal and the second signal corresponding to the plurality of sub-time periods, and takes the sub-time period corresponding to the second time-frequency correlation with the largest value as the third time period.
For example, if the second time-frequency correlation between the first signal and the second signal corresponding to the sub-period 0.00388ms is the maximum value of ρ3, the position determining apparatus takes 0.00388ms as the third period.
Based on this scheme, the third time period corresponding to each signal group can be determined.
In one design, in the case where N is equal to 3, S2003 provided in the embodiment of the present application specifically includes:
S601, the position determining device processes the position of each base station in the positions of N base stations and the distance between each base station in the N distances and the stimulated interference source based on a triangulation method, and determines the position of the stimulated interference source.
It should be noted that, the specific description of the triangulation may refer to the related description in the prior art, and this will not be repeated in the present application.
Fig. 5b is a schematic diagram of determining the position of an excited interference source according to the present application, where, as shown in fig. 5b, after determining the position of each base station of the 3 base stations and the distance between each base station of the 3 distances and the excited interference source, the position of the excited interference source can be determined based on a triangulation method.
The above description of the solution provided by the embodiment of the present application is mainly given from the point of view of performing the method for determining the position of the stimulated interference source by the device for determining the position of the stimulated interference source. In order to achieve the above functions, the position determining device of the stimulated interference source comprises a hardware structure and/or a software module for executing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The embodiment of the application can divide the functional modules of the position determining device of the stimulated interference source according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiment of the present application is schematic, which is merely a logic function division, and other division manners may be implemented in practice. Further, "module" herein may refer to an application-specific integrated circuit (ASIC), a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the described functionality.
Fig. 6 shows a schematic diagram of a position determining device of an excited interference source in the case of functional module division. As shown in fig. 6, the position determining device 60 of the excited interference source includes an acquisition module 601 and a processing module 602.
In some embodiments, the position determining device 60 of the stimulated interference source may also include a memory module (not shown in fig. 6) for storing program instructions and data.
The acquiring module 601 is configured to acquire a signal group of each base station and a position of each base station in the N base stations, so as to obtain N signal groups and positions of the N base stations; the signal group of one base station comprises a first signal in a first time period transmitted by one base station and a second signal in a second time period received by one base station, wherein the starting time of the second time period is the same as the starting time of the first time period, and the ending time of the second time period is later than the ending time of the first time period; the first time-frequency correlation between the first signal and the second signal is larger than a first threshold value, and N is a natural number larger than 2; the processing module 602 is configured to determine, according to each of the N signal groups, a distance between each base station and the stimulated interference source, so as to obtain N distances; the processing module 602 is further configured to determine a location of the excited interference source according to a location of each of the N base stations and the N distances.
Optionally, the processing module 602 is configured to determine, according to each of the N signal groups, a distance between each base station and the excited interference source, and specifically includes: determining a third time period corresponding to each signal group according to each signal group in the N signal groups; the third time period is a time period corresponding to the maximum value of the second time-frequency correlation between the first signal and the second signal; and determining the distance from each base station to the stimulated interference source according to the third time period corresponding to each signal group.
Optionally, the processing module 602 is further configured to determine, according to each signal group of the N signal groups, a third period of time corresponding to each signal group, where the determining includes: obtaining a fourth time period according to the coverage radius of the base station corresponding to each signal group in the N signal groups; the signal strength of the first signal at the coverage edge of the base station is equal to the second threshold, and the coverage radius and the fourth time period satisfy the following relationship: r=v× (t/2); wherein R represents a coverage radius, v represents a speed of light, and t represents a fourth time period; determining a plurality of sub-time periods corresponding to the fourth time period according to a preset step length; determining a second time-frequency correlation between the first signal and the second signal corresponding to each sub-time period, and obtaining a plurality of second time-frequency correlations; and taking the sub-time period corresponding to the second time-frequency correlation with the maximum value as a third time period.
Optionally, N is equal to 3, and the processing module 602 is configured to determine the location of the excited interference source further according to the location of each of the N base stations and the N distances, including: and processing the position of each base station in the positions of the N base stations and the distance between each base station in the N distances and the stimulated interference source based on a triangulation method, and determining the position of the stimulated interference source.
All relevant contents of each step related to the above method embodiment may be cited to the functional descriptions of the corresponding functional modules, which are not described herein.
In the case of realizing the functions of the above-described functional modules in the form of hardware, fig. 7 shows a schematic configuration of a position determining apparatus of an excited interference source. As shown in fig. 7, the position determining device 70 of the stimulated interference source includes a processor 701, a memory 702, and a bus 703. The processor 701 and the memory 702 may be connected by a bus 703.
The processor 701 is a control center of the position determining device 70 of the excited interference source, and may be one processor or a collective name of a plurality of processing elements. For example, the processor 701 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.
As one example, processor 701 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 7.
The memory 702 may be, but is not limited to, read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or electrically erasable programmable read-only memory (EEPROM), magnetic disk storage or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
As a possible implementation, the memory 702 may exist separately from the processor 701, and the memory 702 may be connected to the processor 701 through the bus 703 for storing instructions or program code. The processor 701, when calling and executing instructions or program codes stored in the memory 702, can implement the method for determining the position of the stimulated interference source provided by the embodiment of the application.
In another possible implementation, the memory 702 may also be integrated with the processor 701.
Bus 703 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, a peripheral component interconnect (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 7, but not only one bus or one type of bus.
It should be noted that the structure shown in fig. 7 does not constitute a limitation of the position determining means 70 of the stimulated interference source. The position determining device 70 of the stimulated interference source may include more or less components than shown in fig. 7, or certain components may be combined, or a different arrangement of components.
As an example, in connection with fig. 6, the acquisition module 601 and the processing module 602 in the position determining device 60 of the excited interference source realize the same functions as those of the processor 701 in fig. 7.
Optionally, as shown in fig. 7, the location determining device 70 of the stimulated interference source provided by the embodiment of the present application may further include a communication interface 704.
Communication interface 704 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 704 may include a receiving unit for receiving data and a transmitting unit for transmitting data.
In a possible implementation manner, in the position determining device 70 of the excited interference source provided in the embodiment of the present application, the communication interface 704 may also be integrated in the processor 701, which is not limited in particular by the embodiment of the present application.
As a possible product form, the position determining device of the stimulated interference source according to the embodiment of the present application may be further implemented by using the following: one or more field programmable gate arrays (field programmable GATE ARRAY, FPGA), programmable logic devices (programmable logic device, PLD), controllers, state machines, gate logic, discrete hardware components, any other suitable circuit or circuits capable of performing the various functions described throughout this application.
From the above description of embodiments, it will be apparent to those skilled in the art that the foregoing functional unit divisions are merely illustrative for convenience and brevity of description. In practical applications, the above-mentioned function allocation may be performed by different functional units, i.e. the internal structure of the device is divided into different functional units, as needed, to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
The embodiment of the present application also provides a computer-readable storage medium, on which a computer program or instructions are stored, which when executed cause a computer to perform the steps in the method flow shown in the above-mentioned method embodiment.
Embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the steps of the method flow shown in the method embodiments described above.
An embodiment of the present application provides a chip system, including: a processor and interface circuit; interface circuit for receiving computer program or instruction and transmitting to processor; the processor is configured to execute the computer program or instructions to cause the chip system to perform the steps of the method flow shown in the method embodiments described above.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: electrical connections having one or more wires, portable computer diskette, hard disk. Random access memory (Random Access Memory, RAM), read-only memory (ROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, EPROM), registers, hard disk, optical fiber, portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium suitable for use by a person or persons of skill in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in a special purpose ASIC. In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Since the position determining device, the computer readable storage medium and the computer program product of the stimulated interference source provided in this embodiment can be applied to the method for determining a position of a stimulated interference source provided in this embodiment, the technical effects that can be obtained by the method can also refer to the method embodiment described above, and the embodiments of the present application are not repeated here.
Although the application is described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a study of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Although the application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (6)

1.A method of determining a source of stimulated interference, the method comprising:
Acquiring a signal group of each base station in N base stations and the position of each base station to obtain the positions of the N signal groups and the N base stations; the signal group of one base station comprises a first signal in a first time period transmitted by the one base station and a second signal in a second time period received by the one base station, wherein the starting time of the second time period is the same as the starting time of the first time period, and the ending time of the second time period is later than the ending time of the first time period; the first time-frequency correlation between the first signal and the second signal is greater than a first threshold, and N is a natural number greater than 2; the second signal comprises an stimulated signal of the first signal;
According to each signal group in the N signal groups, determining the distance from each base station to the stimulated interference source to obtain N distances;
determining the position of the stimulated interference source according to the position of each base station in the positions of the N base stations and the N distances;
the determining the distance from each base station to the stimulated interference source according to each signal group in the N signal groups comprises the following steps:
Determining a third time period corresponding to each signal group according to each signal group in the N signal groups; the third time period is a time period corresponding to the maximum value of the second time-frequency correlation between the first signal and the second signal;
determining the distance from each base station to the stimulated interference source according to the third time period corresponding to each signal group;
The determining, according to each of the N signal groups, a third time period corresponding to each signal group includes:
Obtaining a fourth time period according to the coverage radius of the base station corresponding to each signal group in the N signal groups; the signal strength of the first signal at the coverage edge of the base station is equal to a second threshold, the coverage radius and the fourth time period satisfy the following relationship:
R=v×（t/2）
Wherein R represents a coverage radius, v represents a speed of light, and t represents a fourth time period;
determining a plurality of sub-time periods corresponding to the fourth time period according to a preset step length;
determining a second time-frequency correlation between the first signal and the second signal corresponding to each sub-time period, and obtaining a plurality of second time-frequency correlations;
and taking the sub-time period corresponding to the second time-frequency correlation with the maximum value as the third time period.
2. The method of claim 1, wherein N is equal to 3, wherein determining the location of the excited interferer based on the location of each of the N base stations and the N distances comprises:
And processing the position of each base station in the positions of the N base stations and the distance between each base station in the N distances and the stimulated interference source based on a triangulation method, and determining the position of the stimulated interference source.
3. An apparatus for determining a source of excited interference, the apparatus comprising: the device comprises an acquisition module and a processing module;
the acquisition module is used for acquiring the signal group of each base station in the N base stations and the position of each base station to obtain the positions of the N signal groups and the N base stations; the signal group of one base station comprises a first signal in a first time period transmitted by the one base station and a second signal in a second time period received by the one base station, wherein the starting time of the second time period is the same as the starting time of the first time period, and the ending time of the second time period is later than the ending time of the first time period; the first time-frequency correlation between the first signal and the second signal is greater than a first threshold, and N is a natural number greater than 2; the second signal comprises an stimulated signal of the first signal;
the processing module is used for determining the distance from each base station to the stimulated interference source according to each signal group in the N signal groups to obtain N distances;
the processing module is further used for determining the position of the stimulated interference source according to the position of each base station in the positions of the N base stations and the N distances;
The processing module is configured to determine, according to each signal group in the N signal groups, a distance from each base station to an excited interference source, and specifically includes:
Determining a third time period corresponding to each signal group according to each signal group in the N signal groups; the third time period is a time period corresponding to the maximum value of the second time-frequency correlation between the first signal and the second signal;
determining the distance from each base station to the stimulated interference source according to the third time period corresponding to each signal group;
The processing module is further configured to determine, according to each of the N signal groups, a third time period corresponding to each signal group, where the determining includes:
Obtaining a fourth time period according to the coverage radius of the base station corresponding to each signal group in the N signal groups; the signal strength of the first signal at the coverage edge of the base station is equal to a second threshold, the coverage radius and the fourth time period satisfy the following relationship:
R=v×（t/2）
Wherein R represents a coverage radius, v represents a speed of light, and t represents a fourth time period;
determining a plurality of sub-time periods corresponding to the fourth time period according to a preset step length;
determining a second time-frequency correlation between the first signal and the second signal corresponding to each sub-time period, and obtaining a plurality of second time-frequency correlations;
and taking the sub-time period corresponding to the second time-frequency correlation with the maximum value as the third time period.
4. The apparatus of claim 3, wherein N is equal to 3, wherein the processing module for determining the location of the stimulated interference source further based on the location of each of the N base stations and the N distances comprises:
And processing the position of each base station in the positions of the N base stations and the distance between each base station in the N distances and the stimulated interference source based on a triangulation method, and determining the position of the stimulated interference source.
5. A position determining apparatus of an excited interference source, characterized in that the position determining apparatus of an excited interference source comprises: a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of claim 1 or 2.
6. A computer readable storage medium having stored thereon a computer program or instructions, which when executed cause a computer to perform the method of claim 1 or 2.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111278040A (en) * 2018-12-05 2020-06-12 中国移动通信集团四川有限公司 Interference source positioning method, device, equipment and computer storage medium
CN112166333A (en) * 2018-05-25 2021-01-01 高通股份有限公司 Determining timing resolution and range of reported timing measurements for positioning estimation
CN113347702A (en) * 2020-02-18 2021-09-03 上海华为技术有限公司 Interference source positioning method and related equipment
CN114520997A (en) * 2020-11-19 2022-05-20 中国移动通信集团上海有限公司 Method, device, equipment and storage medium for positioning 5G network interference source

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2951608B1 (en) * 2013-01-31 2021-03-10 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Determining a position of a mobile communication device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112166333A (en) * 2018-05-25 2021-01-01 高通股份有限公司 Determining timing resolution and range of reported timing measurements for positioning estimation
CN111278040A (en) * 2018-12-05 2020-06-12 中国移动通信集团四川有限公司 Interference source positioning method, device, equipment and computer storage medium
CN113347702A (en) * 2020-02-18 2021-09-03 上海华为技术有限公司 Interference source positioning method and related equipment
CN114520997A (en) * 2020-11-19 2022-05-20 中国移动通信集团上海有限公司 Method, device, equipment and storage medium for positioning 5G network interference source

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
《A Novel TDOA-Based Localization Algorithm Using Asynchronous Base Stations》;Kim，SD;《WIRELESS PERSONAL COMMUNICATIONS》;20170912;全文 *
LTE网络中融合二次插值和TOA观测的终端定位方法;刘俊霞;贾振红;;湘潭大学自然科学学报;20161215(第04期);全文 *

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