CN116801377A - Interference source positioning method, device, equipment and computer readable storage medium - Google Patents
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Abstract
The invention discloses an interference source positioning method, an interference source positioning device, an interference source positioning equipment and a computer readable storage medium, wherein the interference source positioning method comprises the following steps: determining a same-frequency adjacent cell within a preset distance of an interference cell, and calculating a target main adjacent RSRP difference value between the interference cell and the same-frequency adjacent cell; checking the target main neighbor RSRP difference value to obtain a checked target main neighbor RSRP difference value; calculating a power difference value between the base station transmitting power of the same-frequency neighbor cell and the base station transmitting power of the interference cell, and calculating uplink total interference power according to the power difference value and the checked target main neighbor RSRP difference value; and calculating the interference contribution degree of each co-frequency neighbor cell according to the uplink total interference power of each co-frequency neighbor cell, and positioning an interference source neighbor cell in each co-frequency neighbor cell according to the interference contribution degree. The invention realizes the accurate positioning of the adjacent cells of the interference source in the same-frequency networking system.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a method, an apparatus, a device, and a computer readable storage medium for locating an interference source.
Background
The 4/5G intra-system interference refers to uplink total interference caused by a 4G/5G cell terminal of the same-frequency networking to a same-frequency neighboring cell within a certain surrounding distance when the 4G/5G cell terminal is used for uplink data traffic (PUSCH) channel. The problem of the internal interference of the system belongs to the same-frequency interference, and the position of an interference source cannot be determined through sweep analysis and multi-angle test and investigation of a frequency spectrograph like the external interference investigation of the system.
Disclosure of Invention
The invention mainly aims to provide an interference source positioning method, an interference source positioning device, interference source positioning equipment and a computer readable storage medium, and aims to solve the technical problem that interference sources in a system of the same-frequency networking are difficult to position.
In order to achieve the above object, the present invention provides a method for locating an interference source, comprising the following steps:
determining a same-frequency adjacent cell within a preset distance of an interference cell, and calculating a target main adjacent RSRP difference value between the interference cell and the same-frequency adjacent cell;
checking the target main neighbor RSRP difference value to obtain a checked target main neighbor RSRP difference value;
calculating a power difference value between the base station transmitting power of the same-frequency neighbor cell and the base station transmitting power of the interference cell, and calculating uplink total interference power according to the power difference value and the checked target main neighbor RSRP difference value;
and calculating the interference contribution degree of each co-frequency neighbor cell according to the uplink total interference power of each co-frequency neighbor cell, and positioning an interference source neighbor cell in each co-frequency neighbor cell according to the interference contribution degree.
Optionally, the step of determining the co-frequency neighbor cell within the preset distance of the interfering cell includes:
determining an initial cell within a preset distance of the interference cell;
determining an absolute difference between a center carrier frequency channel number of the interfering cell and a center carrier frequency channel number of the initial cell;
and if the absolute difference value is smaller than or equal to a preset value, determining that the initial cell is the same-frequency neighbor cell.
Optionally, the step of determining the co-frequency neighbor cell within the preset distance of the interfering cell includes:
determining an initial cell within a preset distance of the interference cell;
determining a first working frequency band of the interference cell and a second working frequency band of the initial cell;
and if the first working frequency band is equal to the second working frequency band, determining that the initial cell is a same-frequency neighbor cell.
Optionally, the step of calculating a target primary neighbor RSRP difference between the interfering cell and the on-channel neighbor cell includes:
acquiring MRO data of the same-frequency neighbor cell, and identifying measurement data of the same-frequency neighbor cell and measurement data of an interference cell based on the MRO data;
and calculating a main adjacent RSRP difference value of a single sampling point according to the same-frequency adjacent cell measurement data and the interference cell measurement data, and summing the main adjacent RSRP difference values of all the sampling points in the same time to obtain a target main adjacent RSRP difference value.
Optionally, the step of verifying the target primary neighbor RSRP difference value to obtain a verified target RSRP difference value includes:
acquiring sampling points corresponding to the target main adjacent RSRP difference value, determining the RRC average connection number in service data corresponding to the interference cell, and checking the sampling points of the target main adjacent RSRP difference value according to the sampling points and the PRC average connection number;
acquiring the utilization rate of an uplink PRB in the service data, and carrying out transmission bandwidth verification on the target primary neighbor RSRP difference value according to the utilization rate of the uplink PRB;
and determining a checked target primary neighbor RSRP difference value according to the sampling point check sum and the transmission bandwidth check.
Optionally, the step of determining the checked target primary neighbor RSRP difference value according to the sampling point check and the transmission bandwidth check includes:
determining a check coefficient corresponding to the sampling point check and determining a check value corresponding to the transmission bandwidth check;
and calculating a product among the check coefficient, the check value and the target main adjacent RSRP difference value, and taking the product as the checked target main adjacent RSRP difference value.
Optionally, the step of calculating the uplink total interference power according to the power difference and the verified target primary neighbor RSRP difference includes:
and calculating the sum of all the checked target main adjacent RSRP difference values within a preset time range, and taking the product between the sum and the power difference value as uplink total interference power.
In addition, in order to achieve the above object, the present invention further provides an interference source positioning device, including:
the determining module is used for determining the same-frequency adjacent cells within the preset distance of the interference cell and calculating a target main adjacent RSRP difference value between the interference cell and the same-frequency adjacent cells;
the verification module is used for verifying the target main adjacent RSRP difference value to obtain a verified target main adjacent RSRP difference value;
the calculation module is used for calculating a power difference value between the base station transmitting power of the same-frequency adjacent cell and the base station transmitting power of the interference cell, and calculating uplink overall interference power according to the power difference value and the checked target main adjacent RSRP difference value;
the positioning module is used for calculating the interference contribution degree of each same-frequency neighbor cell according to the uplink total interference power of each same-frequency neighbor cell and positioning the interference source neighbor cell in each same-frequency neighbor cell according to the interference contribution degree.
In addition, in order to achieve the above objective, the present invention also provides an interference source positioning device, where the interference source positioning device includes a memory, a processor, and an interference source positioning program stored in the memory and capable of running on the processor, and the interference source positioning program implements the steps of the interference source positioning method as described above when executed by the processor.
In addition, in order to achieve the above object, the present invention further provides a computer readable storage medium, on which an interference source positioning program is stored, which when executed by a processor implements the steps of the interference source positioning method as described above.
The invention calculates the target main adjacent RSRP difference between the interference cell and the same-frequency adjacent cell, checks, calculates the uplink total interference power according to the difference between the base station transmission power of the same-frequency adjacent cell and the base station transmission power of the interference cell, determines the interference contribution degree of each same-frequency adjacent cell according to the uplink total interference power, and determines the interference source adjacent cell according to the interference contribution degree, thereby avoiding the phenomenon that the interference source cannot be positioned in the current same-frequency networking system, and realizing the accurate positioning of the interference source adjacent cell in the same-frequency networking system.
Drawings
FIG. 1 is a schematic diagram of a terminal/device structure of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flowchart of a first embodiment of an interference source positioning method according to the present invention;
FIG. 3 is a schematic diagram of a device module of an interference source positioning device according to the present invention;
fig. 4 is a schematic view of a scenario in the interference source positioning method of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, fig. 1 is a schematic diagram of a terminal structure of a hardware running environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention is the interference source positioning equipment.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Optionally, the terminal may also include a camera, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and so on. Among other sensors, such as light sensors, motion sensors, and other sensors. In particular, the light sensor may comprise an ambient light sensor, which may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor, which may turn off the display screen and/or the backlight when the terminal device is moved to the ear. Of course, the terminal device may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, which are not described herein.
It will be appreciated by those skilled in the art that the terminal structure shown in fig. 1 is not limiting of the terminal and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and an interference source location program may be included in a memory 1005, which is a type of computer storage medium.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the interferer location program stored in the memory 1005 and perform the following operations:
referring to fig. 2, the present invention provides an interference source positioning method, in a first embodiment of the interference source positioning method, the interference source positioning method includes the steps of:
step S10, determining the same-frequency adjacent cells within a preset distance of an interference cell, and calculating a target main adjacent RSRP difference value between the interference cell and the same-frequency adjacent cells;
at present, the interference in the system mainly comprises GPS (Global Positioning System ) out-of-step interference, bottom noise rise caused by neighbor cell traffic, long-distance interference caused by atmospheric waveguide effect and the like. In this embodiment, the evaluation calculation of the uplink total interference power of the intra-system interference cell to the 4/5G intra-system interference cell is performed based on the intra-system interference cell and intra-system neighboring cell base station transmission power (4G is CRS transmission power, 5G is SSB transmission power), the reference signal reception power of the serving cell in the MR measurement data, the neighboring cell reference signal reception power (4G is RSRP (Reference Signal Receiving Power, reference signal reception power), 5G is SSRSRP), the traffic data (uplink PRB utilization), and other data, so as to achieve the accurate positioning of the intra-system interference source neighboring cell of the 4/5G in the same-frequency networking.
The interference in this embodiment may be uplink total interference, that is, co-channel interference, caused by a 4G/5G cell terminal of the co-channel network to co-channel neighboring cells within a certain distance around the terminal when the terminal performs uplink data service (PUSCH). In this embodiment, the same-frequency neighbor cell within a certain distance (i.e., a preset distance) of an interference cell in a 4/5G system is determined based on the industrial parameter data, then the received power RSRP difference value (i.e., a target main neighbor RSRP difference value) of the downlink reference signal with the hour granularity of the interference cell in the system and the same-frequency neighbor cell is analyzed and calculated according to the MRO measurement data of the same-frequency neighbor cell, the influence of a single sampling point on the uplink total interference power is avoided by limiting the analysis result of an abnormal sampling point of the target main neighbor RSRP difference value, the RSRP difference value with the hour granularity is checked according to the information of the sampling point with the hour granularity and the traffic volume data, so that the analysis accuracy is improved, the RSRP difference value of all days is summed and calculated on the basis of the check result, then the same-frequency neighbor cell is multiplied with the base station transmission power difference value of the interference cell in the same-frequency neighbor cell, the uplink total interference power of the interference cell in the system is obtained, the interference contribution degree of each same-frequency neighbor cell is calculated, and the main interference source is accurately positioned according to the interference contribution degree.
As shown in fig. 4, the system includes a cell 1 and a cell 2, and terminals (UE 1, UE2, UE3 and UE 4), where the cell 1 and the cell 2 cover the UEs 2, UE3 and UE4 in the middle area and generate uplink interference to the co-channel neighboring cell when doing uplink traffic, and the interference strength I is the UE transmit power Txpower minus the path loss PLnc from the UE to the interfered cell (neighboring cell):
I＝Txpower-PL nc (1)；
in this embodiment, the PUSCH channel uplink power control in the system is based on partial power control, that is, by partially compensating for path loss and shadowing effects, that is, ensuring that a terminal closer to the base station still has a higher transmission rate when using a smaller transmission power, and also enabling a terminal at the cell edge to transmit with a larger or even full power so as to maximize the cell edge performance while not excessively increasing the uplink overall interference level, so as to achieve the balance between the overall spectrum efficiency of the system and the cell edge performance. Wherein, the uplink transmission power P of the PUSCH in the system PUSCH The calculation formula of (2) is as follows:
P PUSCH ＝min{P CMAX ，P 0 (j)+α(j)*PL(q)+10*lg(2 μ *M RB )+Δ TF + δ(l)} (2)；
wherein P is PUSCH And is PUSCH transmit power. P (P) CMAX Maximum transmit power allowed per carrier. P (P) 0 (j) Parameters configurable for the network, power target values for open loop receiving end, j as index, from a set of configured P 0 One of the values is selected. P (P) 0 (j) Is related to the target SINR and interference strength desired at the network side. Alpha (j) is a network-configurable partial path loss compensation factor, and takes a value between 0 and 1. In practical systems a=0.7 or 0.8 may achieve a better balance between fairness and overall system throughput. PL (q) is an estimation of the uplink loss of the UE to the serving cell, including the antenna beamforming gains of the transmitting and receiving ends. μ relates to the subcarrier spacing Δf used for PUSCH transmission, μ=0 in 4G systems. M is M RB The number of allocated resource blocks for the PUSCh transmission. Delta TF For correlation with the modulation scheme and channel coding loss rate used for PUSCH transmission. Delta (l) is the power adjusted by the closed loop power control. P (P) 0 (j) +α (j) PL (q) represents the basic open loop power control supporting partial loss compensation, slow, quasi-static regulated transmission power. 10 x lg (2) μ *M RB ) If it isThere is no change in terms of which the received power and the transmitted power should be proportional to the allocated transmission bandwidth. The closed loop portion delta (l) is the 1 st power control offset state value, whose transmission power can be quickly adjusted for a certain transmission of a certain UE.
And in the transmitting power of the 4/5G system terminal, the transmitting power of the same-frequency neighboring cell UE can be:
Txpower＝α*PL sc +10*lg(2 μ *M RB ) (3)；
and path loss PL from the same-frequency neighbor cell terminal to the same-frequency neighbor cell sc Can transmit power RSPower through the base station side sc And the downlink reference signal received power RSRP of the terminal side sc To determine, namely:
PL sc ＝RSPower sc -RSRP sc (4)；
thus, co-channel neighbor UE transmit power can be characterized as:
Txpower＝α*(RSPower sc -RSRP sc )+10*lg(2 μ *M RB ) (5)；
while path loss PL from co-frequency neighbor UE to intra-system interfering cell nc Then it may be:
PL nc ＝RSPower nc -RSRP nc (6)；
as can be seen from the above formulas (1), (5) and (6), in the level domain, the uplink interference power of the co-frequency neighboring cell terminal to the intra-system interference cell is:
I(dBm)＝Txpower-PL nc ＝α*(RSPower sc -RSRP sc )+10* lg(2 μ *M RB )-(RSPower nc -RSRP nc )＝(α*RSPower sc -RSPower nc )+ (RSRP nc -α*RSRP sc )+10*lg(2 μ *M RB ) (7)；
and in the present embodiment, the relationship between the level domain and the power domain is 1 dbm=10×lg (1 mw). Therefore, in the power domain, the summation is needed after the uplink interference power of a plurality of terminals is obtained, and the uplink interference power of the co-frequency neighbor terminal of the power domain to the interference cell in the system is as follows:
(mw)＝ dBmtomw(α*RSPower sc -RSPower nc )*dBmtomw(RSRP nc -α* RSRP sc )*dBmtomw[10*lg(2 μ *M RB )] (8)
wherein, the liquid crystal display device comprises a liquid crystal display device,representing the conversion of the level value (dBm) into a power value (mw).
Therefore, in this embodiment, when the positioning of the interference source in the 4/5G system is performed, only the co-frequency neighbor cell within a certain distance from the interference cell may be determined. For example, the preset distance corresponding to the 4G and 2.6GHz band 5G systems may be 1000 meters, the preset distance corresponding to the 4.9GHz band 5G system may be 800 meters, and the specific preset distance may be set according to the user requirement. Therefore, in this embodiment, the parameter information such as the cell name, longitude and latitude, working frequency band, carrier frequency number and the like can be obtained according to the parameter data of the system, and then the same-frequency neighboring cell within the preset distance from the interfering cell is determined based on the cell distance and the frequency band information.
And then according to the determined same-frequency neighbor cells of the intra-system interference cells, obtaining MRO data of a base station to which the same-frequency neighbor cells belong, accurately identifying and obtaining a same-frequency neighbor cell measurement book and intra-system interference cell measurement data based on the MRO data, and calculating a main neighbor RSRP difference value at each sampling point moment, namely calculating a single sampling point main neighbor RSRP difference value:
ΔRSRP＝dBmtomw[min(MR.NcRSRP-α*MR.ScRSRP)，σ] (9)；
then calculating according to the time stamp information to obtain an RSRP difference sum with the hour granularity, and taking the RSRP difference sum as a main adjacent RSRP difference value (delta RSRP) with the hour granularity h ) I.e., the target primary neighbor RSRP difference,
ΔRSRP h ＝∑dBmtomw(MR.NcRSRP-α*MR.ScRSRP) (10)；
and counting all sampling points, namely MRO sampling points corresponding to MRO data.
Step S20, checking the target main adjacent RSRP difference value to obtain a checked target main adjacent RSRP difference value;
when obtainingAfter the target primary neighbor RSRP difference value is reached, checking is needed to obtain the checked target primary neighbor RSRP difference value, namely, the target primary neighbor RSRP difference value can be checked according to the RRC average connection number in the traffic data and the MRO sampling point number with the hour granularity; and checking the transmission bandwidth factor of the target primary neighbor RSRP difference value based on the uplink PRB utilization rate in the traffic data. And because MRO measurement data is periodically reported by the terminal, the reporting times of the terminal in one hour are given that the terminal reports once every t seconds(round down) times. But the network management side is sampling record when generating MRO measurement data record file, and does not record all reported information. Therefore, sampling point verification is required for the uplink lumped interference power with the hour granularity. In this embodiment, besides performing sampling point verification, transmission bandwidth verification is performed on the target primary neighbor RSRP difference value according to the average utilization rate of the uplink PRB with the hour granularity, so as to calculate the verified target primary neighbor RSRP difference value according to the verification coefficient of the sampling point verification and the verification value of the transmission bandwidth verification. And the check rule for performing the sample point check may be, for example, the hourly granularity sample point sampcounth divided by +.>RRC average connection number rrccount later than corresponding time h Then the coefficient ρ is verified h =1; otherwise, the coefficient ρ of verification is h The method comprises the following steps:
and the checked target primary neighbor RSRP difference value (delta RSRP) can be determined according to the formulas (7) and (10) h ) The method comprises the following steps:
wherein μ is5G parameter set factor, 4G system μ=0; p is p h Represents the average utilization rate of the uplink PRB at the check time, N represents the number of PRBs in the same-frequency neighbor cells, is determined by the cell bandwidth and the subcarrier spacing,representing an upward rounding.
Step S30, calculating a power difference value between the base station transmitting power of the same-frequency adjacent cell and the base station transmitting power of the interference cell, and calculating uplink total interference power according to the power difference value and the checked target main adjacent RSRP difference value;
and the uplink total interference power of the same-frequency neighbor cell is obtained by summing the checked target main neighbor RSRP difference values, that is, summing the checked hour granularity main neighbor RSRP difference values to obtain a day granularity main neighbor RSRP difference value, calculating the power difference value between the base station transmission power of the same-frequency neighbor cell and the base station transmission power of the interference cell, and multiplying the two difference values to obtain uplink total interference power (Ic), that is:
and S40, calculating the interference contribution degree of each same-frequency neighbor cell according to the uplink total interference power of each same-frequency neighbor cell, and positioning an interference source neighbor cell in each same-frequency neighbor cell according to the interference contribution degree.
The interference contribution degree p of each co-frequency neighbor cell can be calculated by comparing the uplink total interference power of each co-frequency neighbor cell with the sum of the uplink total interference power of all co-frequency neighbor cells c The method comprises the following steps:
p c ＝I c /∑I c *100％ (14)。
and after each interference contribution degree is determined, the main interference source neighbor can be accurately positioned according to the value of the interference contribution degree.
In the embodiment, interference source positioning analysis of common-frequency interference is performed by adopting 4/5G system industrial parameters, traffic and MRO data, the uplink total interference power of the common-frequency neighbor cell to the interference cell in the system is calculated based on the data such as the main neighbor cell RSRP data reported by the terminal in the MRO data, the uplink PRB utilization rate in the industrial parameters data and the cell base station side transmitting power, and the like, and meanwhile, the problem of low PHR data reporting rate and sampling and storing of sampling point data in the MRO data is solved by limiting the analysis result of the main neighbor RSRP difference abnormal sampling points and the sampling point verification of the hour granularity, and the positioning accuracy is ensured. The positioning analysis is realized by collecting SSRSRP data with higher reporting rate, and the sampling point check and the transmission bandwidth check are introduced, so that the accuracy of the same-frequency interference source positioning in the 4/5G system is greatly improved, and the possibility of practical application is also provided.
In this embodiment, the target primary neighboring RSRP difference between the interference cell and the co-frequency neighboring cell is calculated, and checked, and then the uplink total interference power is calculated according to the power difference between the base station transmission power of the co-frequency neighboring cell and the base station transmission power of the interference cell, and then the interference contribution degree of each co-frequency neighboring cell is determined according to the uplink total interference power, and the interference source neighboring cell is determined according to the interference contribution degree, so that the phenomenon that the interference source cannot be positioned in the current co-frequency networking system is avoided, and the accurate positioning of the interference source neighboring cell in the co-frequency networking system is realized.
Further, based on the first embodiment of the present invention, a second embodiment of the interference source positioning method of the present invention is provided, in this embodiment, step S10 of the foregoing embodiment, the step of determining the co-frequency neighboring cell within the preset distance of the interfering cell is refined, which includes:
step a, determining an initial cell within a preset distance of the interference cell;
step b, determining an absolute difference value between the central carrier frequency channel number of the interference cell and the central carrier frequency channel number of the initial cell;
and c, if the absolute difference value is smaller than or equal to a preset value, determining that the initial cell is the same-frequency neighbor cell.
In this embodiment, when determining the co-frequency neighbor cell corresponding to the interfering cell, all cells within a certain distance from the interfering cell may be determined first, and used as initial cells, and then, according to the cell distance and the frequency band information, which initial cells are co-frequency neighbor cells are determined. The method comprises the steps of calculating an absolute difference value between a central carrier frequency channel number of an interference cell and a central carrier frequency channel number of an initial cell, and determining the initial cell as a same-frequency neighbor cell when the absolute difference value is smaller than or equal to a preset value (any value set in advance by a user, such as 10). That is, in this embodiment, when the distance between the initial cell and the interfering cell is smaller than a preset distance, and the absolute difference between the center carrier frequency channel number of the initial cell and the center carrier frequency channel number of the initial cell is smaller than or equal to a preset value, the initial cell is directly determined to be the same-frequency neighboring cell.
In this embodiment, the initial cell within the preset distance of the interference cell is determined, and when the absolute difference between the central carrier frequency channel number of the interference cell and the central carrier frequency channel number of the initial cell is smaller than or equal to the preset value, the initial cell is directly used as the same-frequency neighboring cell, so that the accuracy of determining the same-frequency neighboring cell is ensured.
Further, the step of determining the co-frequency neighbor cell within the preset distance of the interfering cell includes:
step d, determining an initial cell within a preset distance of the interference cell;
step e, determining a first working frequency band of the interference cell and a second working frequency band of the initial cell;
and f, if the first working frequency band is equal to the second working frequency band, determining that the initial cell is a same-frequency neighbor cell.
In this embodiment, the determination of the co-frequency neighboring cell corresponding to the interfering cell may also be determined according to the operating frequency band of the cell. And determining all cells within a certain distance from the interference cell as initial cells, and determining which initial cells are same-frequency neighbor cells according to the cell distance and the working frequency band. And determining the working frequency band corresponding to the interference cell and taking the working frequency band as a first working frequency band. And determining the working frequency band corresponding to the initial cell, and taking the working frequency band as a second working frequency band. If the first working frequency band is equal to the second working frequency band, the initial cell can be directly determined to be the same-frequency neighbor cell. That is, in this embodiment, when the distance between the initial cell and the interfering cell is smaller than the preset distance and the second operating frequency band of the initial cell is equal to the first operating frequency band of the interfering cell, it may be determined that the initial cell is a co-frequency neighboring cell directly.
In this embodiment, by determining the initial cell within the preset distance of the interference cell and directly determining that the initial cell is the same-frequency neighboring cell when the first working frequency band of the interference cell is equal to the second working frequency band of the initial cell, the accuracy of determining the same-frequency neighboring cell is ensured.
Further, the step of calculating a target primary neighbor RSRP difference between the interfering cell and the on-channel neighbor cell includes:
step g, obtaining MRO data of the same-frequency neighbor cell, and identifying measurement data of the same-frequency neighbor cell and measurement data of an interference cell based on the MRO data;
and h, calculating a main adjacent RSRP difference value of a single sampling point according to the same-frequency adjacent cell measurement data and the interference cell measurement data, and summing the main adjacent RSRP difference values of all the sampling points in the same time to obtain a target main adjacent RSRP difference value.
In this embodiment, when determining that the interference cell and the co-frequency neighbor cell are different from each other, the MRO data of the co-frequency neighbor cell can be obtained by calculating the difference between the primary neighbor RSRP of the hour granularity, and the MRO data can be obtained by determining the ID of the base station to which the interference cell belongs and obtaining the MRO data of the corresponding station according to the parameter information of the co-frequency neighbor cell. And identifying the same-frequency neighbor cell measurement data in the MRO data, namely accurately identifying and acquiring the same-frequency neighbor cell measurement data based on the eNB label information, the smr label information and the object label information in the MRO data. And the measurement data needs to include information such as a reporting time stamp of a sampling point, the received signal power of the same-frequency adjacent cell, a physical cell identification code, a carrier number, the received signal power of the adjacent cell, the physical cell identification code, the carrier number and the like. And identifying the measurement data of the interference cell, namely analyzing whether the PCI and the carrier number of the adjacent cell physical cell identification code reported by the MRO data are consistent with the physical cell identification code and the carrier number of the interference cell in the system which are analyzed currently so as to accurately identify and acquire the received signal power of the interference cell in the system.
And calculates a main neighbor RSRP difference value (unit: mw, i.e. the level value needs to be converted into a power value) of a single sampling point based on the identified and acquired co-frequency neighbor measurement data and interference cell measurement data, i.e.:
ΔRSRP＝dBmtomw[min(MR.NcRSRP-α*MR.ScRSRP)，σ] (9)；
wherein ΔRSRP is a single sampling point main neighbor RSRP difference value, MR.NcRSRP represents neighbor cell receiving signal power in the same-frequency neighbor cell MRO data, 4G system corresponds to MR.LteNcRSRP, and 5G system corresponds to MR.NRNcSSRSRP; the MR.ScRSRP represents the received signal power of a main serving cell in the MRO data of the same-frequency neighbor cell, the 4G system corresponds to the MR.LteScRSRP, and the 5G system corresponds to the MR.NRScSSRSRP; alpha is a partial path loss compensation factor, and the value in the existing network is generally 0.8. Sigma is the primary neighbor RSRP difference value limit threshold. And the receiving power of the downlink reference signal of the adjacent cell is not higher than the receiving power of the downlink reference signal of the serving cell by 3dB, so in order to avoid the uplink total interference power abnormality caused by the difference abnormality of the main adjacent RSRP of a single sampling point, when MR.NcRSRP-alpha is MR.ScRSRP > sigma, deltaRSRP=sigma is recorded. Sigma may take a value of 8.
And the primary neighbor RSRP difference values of all sampling points in the same hour can be summed according to the timestamp information in the measurement data to obtain an hour granularity primary neighbor RSRP difference value, and the hour granularity primary neighbor RSRP difference value is used as a target primary neighbor RSRP difference value, namely:
ΔRSRP h ＝∑dBmtomw(MR.NcRSRP-α*MR.ScRSRP) (10)；
and MRO sampling point statistics of the same-frequency neighbor cells is also needed, namely, the MRO sampling point of each hour of the same-frequency neighbor cells is counted.
In the embodiment, the same-frequency neighbor cell measurement data and the interference cell measurement data are identified according to the MRO data of the same-frequency neighbor cell, and the main neighbor RSRP difference values of the single sampling points are summed in time to obtain the target main neighbor RSRP difference value, so that the accuracy and the effectiveness of the calculated target main neighbor RSRP difference value are ensured.
Further, the step of verifying the target primary neighbor RSRP difference value to obtain a verified target RSRP difference value includes:
step i, obtaining sampling points corresponding to the target main adjacent RSRP difference value, determining the RRC average connection number in service data corresponding to the interference cell, and checking the sampling points of the target main adjacent RSRP difference value according to the sampling points and the PRC average connection number;
step k, obtaining the utilization rate of the uplink PRB in the service data, and carrying out transmission bandwidth verification on the target primary neighbor RSRP difference value according to the utilization rate of the uplink PRB;
and step l, determining a checked target primary neighbor RSRP difference value according to the sampling point check sum and the transmission bandwidth check.
In this embodiment, after the target primary neighboring RSRP difference value is obtained, verification is required, that is, the sampling point number corresponding to the target primary neighboring RSRP difference value, that is, the MRO sampling point number, may be obtained. And determining a time stamp corresponding to the target main adjacent RSRP difference value to determine a corresponding time, acquiring the average PRC connection number in service data corresponding to the interference cell at the corresponding time, and determining a check coefficient according to the sampling point number and the average PRC connection number and a check rule set in advance. If the check rule is the sample count of the hour granularity h Divided byRRC average connection number rrccount later than corresponding time h I.e.The coefficient of verification p h =1; on the contrary, the check coefficient p h The method comprises the following steps:
in addition, transmission bandwidth verification is required to be performed on the target main adjacent RSRP difference value, the sampling point verification can be performed first and then the transmission bandwidth verification can be performed, and the sampling point verification and the transmission bandwidth verification can be performed simultaneously, so that the target main adjacent RSRP difference value after verification can be obtained. Because ofWhen the transmission bandwidth is checked, the utilization rate of the uplink PRB in the service data can be acquired first (namely the average utilization rate p of the uplink PRB can be obtained first h ). And performing transmission bandwidth verification, and determining a target primary neighbor RSRP difference after verification according to a verification value of the transmission bandwidth verification and a verification coefficient corresponding to the sampling point verification, namely as shown in a formula (12) in the first embodiment.
In this embodiment, the sampling point verification is performed on the target primary neighboring RSRP difference value according to the sampling point number corresponding to the target primary neighboring RSRP difference value and the PRC average connection number corresponding to the interfering cell, and the transmission bandwidth verification is performed on the target primary neighboring RSRP difference value according to the uplink PRB utilization in the service data, so that the effective performance of the verification on the target primary neighboring RSRP difference value is ensured.
Specifically, the step of determining the checked target primary neighbor RSRP difference value according to the sampling point check and the transmission bandwidth check includes:
m, determining a check coefficient corresponding to the check of the sampling point and determining a check value corresponding to the check of the transmission bandwidth;
and n, calculating a product among the check coefficient, the check value and the target main adjacent RSRP difference value, and taking the product as the checked target main adjacent RSRP difference value.
In this embodiment, the corresponding calibration coefficient of the sampling point calibration may be determined according to the calibration rule. And because the transmission bandwidth of the user is determined by the number of PRBs allocated by the base station side, the check value corresponding to the transmission bandwidth check may be calculated by using the average utilization rate of uplink PRBs with an hour granularity. Then, a product of the check coefficient, the check value and the target primary neighbor RSRP difference is calculated according to the formula (12) in the first embodiment, and the product is used as the checked target primary neighbor RSRP difference.
In this embodiment, the checked target primary neighbor RSRP difference value is calculated by checking the corresponding check coefficient according to the sampling point, transmitting the check value corresponding to the bandwidth check and the target primary neighbor RSRP difference value, so that the accuracy of the obtained checked target primary neighbor RSRP difference value is ensured.
Further, the step of calculating the uplink total interference power according to the power difference and the verified target primary neighbor RSRP difference includes:
and step x, calculating the sum of all the checked target main adjacent RSRP difference values in a preset time range, and taking the product between the sum and the power difference value as uplink total interference power.
In this embodiment, when calculating the uplink total interference power, the uplink total interference power within a certain time range may be determined according to the user requirement, that is, the sum of all the checked target primary neighbor RSRP differences within a preset time range (any time range set in advance by the user, such as one day) may be calculated, and then the product between the sum and the power difference may be calculated, and the product may be used as the uplink total interference power.
In this embodiment, the product between the sum of all the checked target primary neighbor RSRP differences and the power difference in the preset time range is calculated to determine the uplink total interference power, so that the uplink total interference power obtained by calculation is ensured to meet the requirement of the user.
In addition, referring to fig. 3, an embodiment of the present invention further provides an interference source positioning device, including:
the determining module A10 is used for determining the same-frequency adjacent cells within the preset distance of the interference cell and calculating a target main adjacent RSRP difference value between the interference cell and the same-frequency adjacent cells;
the verification module A20 is used for verifying the target main adjacent RSRP difference value to obtain a verified target main adjacent RSRP difference value;
a calculating module a30, configured to calculate a difference between the base station transmitting power of the co-frequency neighboring cell and the base station transmitting power of the interfering cell, and calculate an uplink total interference power according to the difference and the checked target primary neighboring RSRP difference;
and the positioning module A40 is used for calculating the interference contribution degree of each same-frequency neighbor cell according to the uplink total interference power of each same-frequency neighbor cell and positioning the interference source neighbor cell in each same-frequency neighbor cell according to the interference contribution degree.
Optionally, the determining module a10 is configured to:
determining an initial cell within a preset distance of the interference cell;
determining an absolute difference between a center carrier frequency channel number of the interfering cell and a center carrier frequency channel number of the initial cell;
and if the absolute difference value is smaller than or equal to a preset value, determining that the initial cell is the same-frequency neighbor cell.
Optionally, the determining module a10 is configured to:
determining an initial cell within a preset distance of the interference cell;
determining a first working frequency band of the interference cell and a second working frequency band of the initial cell;
and if the first working frequency band is equal to the second working frequency band, determining that the initial cell is a same-frequency neighbor cell.
Optionally, the determining module a10 is configured to:
acquiring MRO data of the same-frequency neighbor cell, and identifying measurement data of the same-frequency neighbor cell and measurement data of an interference cell based on the MRO data;
and calculating a main adjacent RSRP difference value of a single sampling point according to the same-frequency adjacent cell measurement data and the interference cell measurement data, and summing the main adjacent RSRP difference values of all the sampling points in the same time to obtain a target main adjacent RSRP difference value.
Optionally, the verification module a20 is configured to:
acquiring sampling points corresponding to the target main adjacent RSRP difference value, determining the RRC average connection number in service data corresponding to the interference cell, and checking the sampling points of the target main adjacent RSRP difference value according to the sampling points and the PRC average connection number;
acquiring the utilization rate of an uplink PRB in the service data, and carrying out transmission bandwidth verification on the target primary neighbor RSRP difference value according to the utilization rate of the uplink PRB;
and determining a checked target primary neighbor RSRP difference value according to the sampling point check sum and the transmission bandwidth check.
Optionally, the verification module a20 is configured to:
determining a check coefficient corresponding to the sampling point check and determining a check value corresponding to the transmission bandwidth check;
and calculating a product among the check coefficient, the check value and the target main adjacent RSRP difference value, and taking the product as the checked target main adjacent RSRP difference value.
Optionally, the calculating module a30 is configured to:
and calculating the sum of all the checked target main adjacent RSRP difference values within a preset time range, and taking the product between the sum and the power difference value as uplink total interference power.
The steps of implementing each functional module of the interference source positioning device may refer to each embodiment of the interference source positioning method of the present invention, which is not described herein again.
In addition, the invention also provides an interference source positioning device, which comprises: a memory, a processor, and an interferer location program stored on the memory; the processor is configured to execute the interference source positioning program to implement the steps of the embodiments of the interference source positioning method.
The present invention also provides a computer readable storage medium storing one or more programs executable by one or more processors for implementing the steps of the above-described embodiments of the interference source positioning method.
The specific implementation manner of the computer readable storage medium of the present invention is basically the same as the above embodiments of the interference source positioning method, and will not be described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. An interference source positioning method is characterized by comprising the following steps:
determining a same-frequency adjacent cell within a preset distance of an interference cell, and calculating a target main adjacent RSRP difference value between the interference cell and the same-frequency adjacent cell;
checking the target main neighbor RSRP difference value to obtain a checked target main neighbor RSRP difference value;
calculating a power difference value between the base station transmitting power of the same-frequency neighbor cell and the base station transmitting power of the interference cell, and calculating uplink total interference power according to the power difference value and the checked target main neighbor RSRP difference value;
and calculating the interference contribution degree of each co-frequency neighbor cell according to the uplink total interference power of each co-frequency neighbor cell, and positioning an interference source neighbor cell in each co-frequency neighbor cell according to the interference contribution degree.
2. The method for locating an interference source according to claim 1, wherein said step of determining co-frequency neighbors within a preset distance of an interfering cell comprises:
determining an initial cell within a preset distance of the interference cell;
determining an absolute difference between a center carrier frequency channel number of the interfering cell and a center carrier frequency channel number of the initial cell;
and if the absolute difference value is smaller than or equal to a preset value, determining that the initial cell is the same-frequency neighbor cell.
3. The method for locating an interference source according to claim 1, wherein said step of determining co-frequency neighbors within a preset distance of an interfering cell comprises:
determining an initial cell within a preset distance of the interference cell;
determining a first working frequency band of the interference cell and a second working frequency band of the initial cell;
and if the first working frequency band is equal to the second working frequency band, determining that the initial cell is a same-frequency neighbor cell.
4. The method of positioning an interference source of claim 1 wherein said step of calculating a target primary neighbor RSRP difference between said interfering cell and said on-channel neighbor comprises:
acquiring MRO data of the same-frequency neighbor cell, and identifying measurement data of the same-frequency neighbor cell and measurement data of an interference cell based on the MRO data;
and calculating a main adjacent RSRP difference value of a single sampling point according to the same-frequency adjacent cell measurement data and the interference cell measurement data, and summing the main adjacent RSRP difference values of all the sampling points in the same time to obtain a target main adjacent RSRP difference value.
5. The method for locating an interference source of claim 1, wherein the step of verifying the target primary neighboring RSRP difference value to obtain a verified target RSRP difference value comprises:
acquiring sampling points corresponding to the target main adjacent RSRP difference value, determining the RRC average connection number in service data corresponding to the interference cell, and checking the sampling points of the target main adjacent RSRP difference value according to the sampling points and the PRC average connection number;
acquiring the utilization rate of an uplink PRB in the service data, and carrying out transmission bandwidth verification on the target primary neighbor RSRP difference value according to the utilization rate of the uplink PRB;
and determining a checked target primary neighbor RSRP difference value according to the sampling point check sum and the transmission bandwidth check.
6. The method for locating an interference source according to claim 5, wherein said step of determining a checked target primary neighbor RSRP difference value based on said sampling point check and said transmission bandwidth check comprises:
determining a check coefficient corresponding to the sampling point check and determining a check value corresponding to the transmission bandwidth check;
and calculating a product among the check coefficient, the check value and the target main adjacent RSRP difference value, and taking the product as the checked target main adjacent RSRP difference value.
7. The method for locating an interference source according to any one of claims 1 to 6, wherein the step of calculating uplink total interference power according to the power difference and the verified target primary neighbor RSRP difference includes:
and calculating the sum of all the checked target main adjacent RSRP difference values within a preset time range, and taking the product between the sum and the power difference value as uplink total interference power.
8. An interferer location device, the interferer location device comprising:
the determining module is used for determining the same-frequency adjacent cells within the preset distance of the interference cell and calculating a target main adjacent RSRP difference value between the interference cell and the same-frequency adjacent cells;
the verification module is used for verifying the target main adjacent RSRP difference value to obtain a verified target main adjacent RSRP difference value;
the calculation module is used for calculating a power difference value between the base station transmitting power of the same-frequency adjacent cell and the base station transmitting power of the interference cell, and calculating uplink overall interference power according to the power difference value and the checked target main adjacent RSRP difference value;
the positioning module is used for calculating the interference contribution degree of each same-frequency neighbor cell according to the uplink total interference power of each same-frequency neighbor cell and positioning the interference source neighbor cell in each same-frequency neighbor cell according to the interference contribution degree.
9. An interferer location apparatus, the interferer location apparatus comprising: memory, a processor and an interferer localization program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the interferer localization method according to any of claims 1-7.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon an interferer localization program, which when executed by a processor, implements the steps of the interferer localization method according to any of claims 1-7.
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