CN110753361B - Cell evaluation method and device - Google Patents

Cell evaluation method and device Download PDF

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CN110753361B
CN110753361B CN201910989885.5A CN201910989885A CN110753361B CN 110753361 B CN110753361 B CN 110753361B CN 201910989885 A CN201910989885 A CN 201910989885A CN 110753361 B CN110753361 B CN 110753361B
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priority
cell
base station
sited
samples
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CN110753361A (en
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刘光海
薛永备
龙青良
李�一
肖天
许国平
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China United Network Communications Group Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The embodiment of the invention provides a cell evaluation method and a cell evaluation device, relates to the technical field of communication, and can improve the accuracy of cell evaluation. The method comprises the following steps: the method comprises the steps of obtaining the total number of samples and the number of standard samples in a measurement report MR of a first priority cell, determining a second priority cell overlapped with the coverage area of the first priority cell as a second priority cell, obtaining a weight coefficient of the second priority cell and the total number of samples and the number of standard samples in the MR of the second priority cell, determining the standard sample rate of the first priority cell according to the total number of samples and the number of standard samples in the MR of the first priority cell, the weight coefficient of the second priority cell, and the total number of samples and the number of standard samples in the MR of the second priority cell, and determining the first priority cell as the standard cell when the standard sample rate is determined to be greater than the preset standard rate. The scheme provided by the application is suitable for evaluating the cell.

Description

Cell evaluation method and device
Technical Field
The present invention relates to the field of communications, and in particular, to a cell evaluation method and apparatus.
Background
At present, an operator often uses a frequency lower than a preset frequency as a background network, sets a first priority and a handover threshold smaller than the preset threshold, so that a user preferentially resides in a second priority cell with a frequency higher than the preset frequency and a frequency spectrum width higher than the preset frequency spectrum width, and only in a weak coverage area of the second priority cell (the weak coverage area refers to an area where a corresponding base station needs a large coverage area and is too large in distance from other base stations, or a building is shielded to cause a weak boundary area signal), the user UE reselects or switches to the first priority cell. At present, the traditional cell-level evaluation method is to count the total number of sampling points of the measurement report MR of the cell and the total number of sampling points of which the signal level strength reaches a certain decision threshold, and judge the quality of the coverage quality of the cell according to the proportion of the number of sampling points reaching the standard.
Because the first priority cell is a background network and absorbs a large number of weak coverage sampling points (sampling points in a weak coverage area), the weak coverage sampling point proportion of the first priority cell is far higher than that of the second priority cell, if weak coverage problem cell judgment is carried out according to the same threshold, a certain proportion of the first priority cells are judged to be weak coverage cells, and the coverage quality of the first priority network is wrongly underestimated. Therefore, the MR statistical data of the first priority cell cannot comprehensively reflect the overall coverage condition of the first priority cell, and it is difficult to determine whether the first priority cell belongs to a cell with weak coverage problem by using the existing cell evaluation scheme.
Disclosure of Invention
The embodiment of the invention provides a cell evaluation method and a cell evaluation device, which are used for evaluating cell coverage, comprehensively embodying the overall coverage condition of a first priority cell and improving the accuracy of cell evaluation.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a cell evaluation method is provided, including:
acquiring the total number of samples and the number of standard samples in a measurement report MR of a first priority cell, wherein the standard samples are samples with signal strength larger than a preset threshold;
determining a second priority cell overlapped with the coverage area of the first priority cell as a second priority adjacent cell, wherein the priority of the second priority cell is greater than that of the first priority cell;
acquiring a weight coefficient of a second priority adjacent cell, the total number of samples in an MR of the second priority adjacent cell and the number of standard samples, wherein the weight coefficient of the second priority adjacent cell is at least used for indicating the coverage influence degree of the second priority adjacent cell on the first priority cell;
determining the standard sample rate of the first priority cell according to the total number of samples and the number of standard samples in the MR of the first priority cell, the weight coefficient of the second priority cell, the total number of samples and the number of standard samples in the MR of the second priority cell;
and when the standard sample rate is determined to be greater than the preset standard rate, determining the first priority cell as the standard cell.
The cell evaluation method provided by the embodiment of the invention includes the steps of firstly obtaining the total number of samples and the number of standard-reaching samples in an MR of a first priority cell, determining a second priority cell overlapped with the coverage area of the first priority cell as the second priority cell, obtaining a weight coefficient of the second priority cell and the total number of samples and the number of standard-reaching samples in the MR of the second priority cell, determining the standard-reaching sample rate of the first priority cell according to the total number of samples and the number of standard-reaching samples in the MR of the first priority cell, the weight coefficient of the second priority cell and the total number of samples and the number of standard-reaching samples in the MR of the second priority cell, and determining the first priority cell as the standard-reaching cell when the standard-reaching sample rate is determined to be greater than the preset standard-reaching sample rate. Therefore, in the technical scheme provided by the embodiment of the present invention, when a first priority cell is evaluated, by taking into account all second priority cells overlapping with the coverage of the first priority cell, it is avoided that the MR of the first priority cell cannot comprehensively reflect the coverage of the first priority cell because a user terminal is switched to the first priority cell in a weak coverage area of the second priority cell, so that the evaluation method for the first priority cell by combining the second priority cells having coverage influence with the first priority cell more objectively embodies the coverage of the first priority cell, and can improve the accuracy of cell evaluation.
In a second aspect, an apparatus for cell evaluation is provided, including:
the acquisition module is used for acquiring the total number of samples in the MR of the first priority cell and the number of standard-reaching samples, wherein the standard-reaching samples are samples with signal strength larger than a preset threshold value;
the processing module is used for determining a second priority cell overlapped with the coverage area of the first priority cell as a second priority adjacent cell, and the priority of the second priority cell is greater than that of the first priority cell;
the acquiring module is further configured to acquire a weight coefficient of the second priority neighboring cell, the total number of samples in the MR of the second priority neighboring cell, and the number of standard-reaching samples, where the weight coefficient of the second priority neighboring cell is at least used to indicate the coverage influence degree of the second priority neighboring cell on the first priority cell;
the processing module is further configured to determine an up-to-standard sample rate of the first priority cell according to the total number of samples and the number of up-to-standard samples in the MR of the first priority cell acquired by the acquisition module, the weight coefficient of the second priority neighbor cell acquired by the acquisition module, and the total number of samples and the number of up-to-standard samples in the MR of the second priority neighbor cell acquired by the acquisition module;
and the processing module is further used for determining the first priority cell as the standard cell when the standard sample rate is determined to be greater than the preset standard rate.
In a third aspect, a cell evaluation apparatus is provided, which includes a memory, a processor, a bus, and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the cell evaluation apparatus is operating, the processor executes the computer-executable instructions stored by the memory to cause the cell evaluation apparatus to perform the cell evaluation method as provided by the first aspect.
In a fourth aspect, a computer storage medium is provided, the computer storage medium comprising computer executable instructions that, when executed on a computer, cause the computer to perform the cell evaluation method as provided in the first aspect.
The method and the device for evaluating the cell provided by the embodiment of the invention are used for acquiring the total number of samples and the number of standard-reaching samples in an MR of a first priority cell, determining a second priority cell overlapped with the coverage area of the first priority cell as the second priority cell, acquiring the weight coefficient of the second priority cell, the total number of samples and the number of standard-reaching samples in the MR of the second priority cell, determining the standard-reaching sample rate of the first priority cell according to the total number of samples and the number of standard-reaching samples in the MR of the first priority cell, the weight coefficient of the second priority cell, the total number of samples and the number of standard-reaching samples in the MR of the second priority cell, and determining the first priority cell as the standard-reaching cell when the standard-reaching sample rate is determined to be greater than the preset standard-reaching sample rate. Therefore, according to the technical scheme provided by the embodiment of the invention, when the first priority cell is evaluated, the second priority neighbor cells overlapping the coverage range of the first priority cell are all considered for evaluation, so that the condition that the MR of the first priority cell cannot comprehensively reflect the coverage condition of the first priority cell due to the fact that the user terminal is switched to the first priority cell in the weak coverage area of the second priority cell is avoided, the calculated standard sample rate is more in line with the actual condition by combining the second priority neighbor cells having coverage influence with the first priority cell, the first priority cell is evaluated by using the standard sample rate, the obtained evaluation result can more objectively reflect the coverage condition of the first priority cell, and the accuracy of cell evaluation is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flowchart of a cell evaluation method according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating another cell evaluation method according to an embodiment of the present invention;
FIG. 3 is a plan view of an embodiment of a direction representation method according to the present invention;
fig. 4 is a flowchart illustrating another cell evaluation method according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating another cell evaluation method according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating another cell evaluation method according to an embodiment of the present invention;
fig. 7 is a schematic plan view illustrating a method for determining a base station in a cell evaluation method according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a cell evaluation apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another cell evaluation apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
It should be noted that, in the embodiments of the present invention, "of", "corresponding" and "corresponding" may be sometimes used in combination, and it should be noted that, when the difference is not emphasized, the intended meaning is consistent.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used for distinguishing the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the words "first", "second", and the like are not limited in number or execution order.
Because the existing cell evaluation method only considers the data of the cell when evaluating the cell, and the evaluation is not carried out in combination with the cell with the overlapping coverage range of the cell, the cell cannot be objectively and accurately evaluated.
In view of the above problem, referring to fig. 1, an embodiment of the present invention provides a cell evaluation method, including:
s101, acquiring the total number of samples and the number of standard samples in the measurement report MR of the first priority cell.
Wherein, the standard sample is a sample with the signal intensity larger than a preset threshold value. A cell, also called a cell, refers to an area covered by one or a part of a base station (sector antenna) in a cellular mobile communication system, in which a mobile station can reliably communicate with the base station via a radio channel.
For example, in a wireless network constructed by an operator, a plurality of frequency bands generally exist, the frequency of each frequency band is different in height, and the frequency spectrum width is different, a first priority cell is a cell whose frequency is lower than a preset frequency and whose frequency spectrum width is lower than a preset frequency spectrum width in all cells covered by a base station, a sample is data collected by a user terminal at a sampling point and used for evaluating the wireless network environment, data of signal strength for channel testing exists in the data, and a standard sample is a sample whose signal strength is greater than a preset threshold (certain signal strength) in the samples.
S102, determining a second priority cell overlapped with the coverage area of the first priority cell as a second priority neighbor cell.
And the priority of the second priority cell is higher than that of the first priority cell.
For example, the second priority cell is a cell whose frequency is higher than a preset frequency and whose spectrum width is higher than a preset spectrum width among all cells covered by the base station, the priority of the second priority cell is higher than the priority expected by the first priority and is set by the operator, and the user terminal will preferentially access the signal corresponding to the second priority cell after receiving the signal corresponding to the first priority cell and the signal corresponding to the second priority cell at the same time.
S103, acquiring the weight coefficient of the second priority adjacent region, the total number of samples in the MR of the second priority adjacent region and the number of standard samples.
The weight coefficient of the second priority adjacent cell is at least used for indicating the coverage influence degree of the second priority adjacent cell on the first priority cell.
Illustratively, the coverage influence degree is used to indicate the proportion of the overlapping coverage area of the second priority cell and the first priority cell in the second priority cell; in general, the larger the ratio, the higher the degree of coverage impact.
S104, determining the standard sample rate of the first priority cell according to the total number of the samples and the number of the standard samples in the MR of the first priority cell, the weight coefficient of the second priority neighbor cell, and the total number of the samples and the number of the standard samples in the MR of the second priority neighbor cell.
Wherein the sample rate up to standard is used to evaluate the first priority cell.
And S105, when the standard sample rate is determined to be greater than the preset standard rate, determining the first priority cell as the standard cell.
Illustratively, the preset achievement rate is set by an operator or a country, and when the achievement sample rate is less than or equal to the preset achievement rate, the first priority cell is determined to be a non-achievement cell.
The cell evaluation method provided by the embodiment of the invention determines a second priority cell overlapping with the coverage of a first priority cell as a second priority neighbor cell by acquiring the total number of samples and the number of standard-reaching samples in the MR of the first priority cell, acquires a weight coefficient of the second priority neighbor cell and the total number of samples and the number of standard-reaching samples in the MR of the second priority neighbor cell, determines the standard-reaching sample rate of the first priority cell according to the total number of samples and the number of standard-reaching samples in the MR of the first priority cell, the weight coefficient of the second priority neighbor cell, and the total number of samples and the number of standard-reaching samples in the MR of the second priority neighbor cell, and determines the first priority cell as the standard-reaching cell when the standard-reaching sample rate is determined to be greater than a preset standard-reaching sample rate. Therefore, in the technical scheme provided by the embodiment of the present invention, when a first priority cell is evaluated, by taking into account all second priority cells overlapping with the coverage of the first priority cell, it is avoided that the MR of the first priority cell cannot comprehensively reflect the coverage of the first priority cell because a user terminal is switched to the first priority cell in a weak coverage area of the second priority cell, so that the evaluation method for the first priority cell by combining the second priority cells having coverage influence with the first priority cell more objectively embodies the coverage of the first priority cell, and can improve the accuracy of cell evaluation.
Optionally, referring to fig. 2, step S102 is followed by step S102A.
S102A, according to the distance between the first priority base station and the second priority base station, the direction of the main lobe antenna of the first priority base station and the direction of the main lobe antenna of the second priority base station, dividing the second priority adjacent region into a second priority co-sited adjacent region and a second priority non co-sited adjacent region.
The first priority base station is a base station to which the first priority cell belongs, and the second priority base station is a base station to which the second priority cell belongs.
Illustratively, the distance between the first priority base station and the second priority base station is a straight line distance between two base stations.
For example, referring to fig. 3, the direction of the main lobe antenna of the first priority base station may be 45 ° north as indicated by a in fig. 3, 1 is the direction of the main lobe antenna of the first priority base station, the direction of the main lobe antenna of the second priority base station may be 45 ° south as indicated by b in fig. 3, and 2 is the direction of the main lobe antenna of the second priority base station.
In an implementation manner, as shown in fig. 4, the dividing, in the step S102A, the second priority neighboring cell into a second priority co-sited neighboring cell and a second priority non-co-sited neighboring cell specifically includes:
S102A1, judging whether the distance between the first priority base station and the second priority base station is smaller than a first preset distance.
When determining that the distance between the first priority base station and the second priority base station is smaller than the first preset distance, executing step S102a 2; when it is determined that the distance between the first priority base station and the second priority base station is greater than or equal to the first preset distance, step S102a3 is performed.
Illustratively, the first preset distance is set by an operator according to actual conditions, in a city, the base stations are closer in distance, and the first preset distance may be set to be 50M, and in a rural area, the first preset distance may be set to be 100M due to the farther distance between the base stations.
And S102A2, determining the second priority base station as the second priority co-sited base station.
Illustratively, the second priority co-sited base station is used to indicate that the second priority co-sited base station is the same base station as the first priority co-sited base station in performing the operation of the weight coefficient.
S102A3, judging whether the distance between the first priority base station and the second priority base station is smaller than a second preset distance.
When it is determined that the distance between the first priority base station and the second priority base station is smaller than the second preset distance, performing step S102a 4; when it is determined that the distance between the first priority base station and the second priority base station is greater than or equal to the second preset distance, step S102a5 is performed.
Illustratively, the second preset distance is also set by the operator according to practical situations, and may be set to be within one time, for example, 0.8 time, of the average station distance between the second priority cells.
And S102A4, determining the second priority base station as the second priority non-co-sited base station.
And S102A5, excluding the second priority base station from the second priority non-co-sited base stations.
After the step S102a2, a step S102a6 is also included.
S102A6, judging whether a first included angle formed by the direction of the main lobe antenna of the second priority co-sited base station and the direction of the main lobe antenna of the first priority base station is smaller than or equal to a first preset included angle.
When it is determined that the first included angle is smaller than or equal to the first preset included angle, performing step S102a 7; when it is determined that the first included angle is greater than the first preset included angle, step S102A8 is executed.
Illustratively, the first preset angle is set by the operator, and one expression of the first angle is the first angle as 3 shown in c in fig. 3, and in this case, the second priority co-sited base station corresponds to the first priority base station, so the starting point of the main lobe antenna direction of the second priority co-sited base station and the starting point of the main lobe antenna direction of the first priority base station are the same starting point in c in fig. 3.
S102A7, determining a second priority cell corresponding to the second priority co-sited base station as a second priority co-sited adjacent cell.
For example, the second priority co-sited neighboring cell is closer to the first priority cell, and the calculation of the weights is equivalent to sharing one base station, and the directions of the main lobe antennas of the base stations corresponding to the two cells are not shared.
S102A8, excluding the second priority cell corresponding to the second priority co-sited base station from the second priority co-sited adjacent cell.
After the step S102a4, a step S102a9 is also included.
S102A9, judging whether the second priority co-sited base station is in the preset opening angle range of the main lobe antenna direction of the first priority base station.
When it is determined that the second priority non-co-sited base station is within the preset opening angle range in which the direction of the main lobe antenna of the first priority base station is located, performing step S102a 10; when it is determined that the second priority non-co-sited base station is not within the preset opening angle range in which the direction of the main lobe antenna of the first priority base station is located, step S102a11 is performed.
It should be noted that the direction of the main lobe antenna of the first priority base station coincides with an angle bisector of an opening angle corresponding to the preset opening angle range.
For example, as shown in fig. 7, point a is a first priority base station, 1 is a direction of a main lobe antenna of the first priority base station, 5 is a preset opening angle range of the direction of the main lobe antenna of the first priority base station, and C is a second priority non-cooperative base station.
S102A10, determining a second priority cell corresponding to the second priority non-co-sited base station as a second priority non-co-sited neighboring cell.
S102A11, excluding the second priority cell corresponding to the second priority non-co-sited base station from the second priority non-co-sited neighbor cell.
Alternatively, referring to fig. 5, step S103 includes S1031.
And S1031, obtaining the co-station weight coefficient of the second priority co-station adjacent region.
It should be noted that, after step S102a7, that is, when the second priority neighboring cell is the second priority co-sited neighboring cell, the weight coefficient of the second priority neighboring cell is the co-sited weight coefficient.
For example, according to a first included angle formed by the direction of the main lobe antenna of the ith second-priority co-sited base station and the direction of the main lobe antenna of the first priority base station and a first preset included angle, the co-sited weight coefficient Q of the ith second-priority co-sited neighboring cell may be calculated according to a first formula i
The first formula is:
Figure BDA0002237907740000091
wherein M is a first preset included angle V i A first included angle formed by the direction of the main lobe antenna of the ith second-priority co-sited base station and the direction of the main lobe antenna of the first-priority base station is formed, and i is a positive integer.
For example, when the second priority co-sited base station performs the co-sited weight coefficient calculation, the second priority co-sited base station and the first priority base station may be regarded as the same base station, where 3 shown in fig. 3 c is a first included angle, and at this time, the first included angle is 90 °, that is, when the angle calculation is performed, the second priority co-sited base station and the first priority base station may be considered as the same base station (in practice, the same base station may also be), and then the starting point of the main lobe antenna direction of the second priority co-sited base station and the starting point of the main lobe antenna direction of the first priority base station are the same starting point.
Optionally, referring to fig. 5, the step S102a9 is followed by S102B, and when it is determined that the second priority non-co-sited base station is within the preset opening angle range of the direction of the main lobe antenna of the first priority base station, 102B is performed.
S102B, determining whether a base station to which the first priority cell belongs exists in a sector area in a preset field angle range, the sector area being formed by taking the first priority base station as a circle center, taking a distance between the first priority base station and the second priority base station as a radius, and taking a field angle corresponding to the preset field angle range as a circle center angle.
When it is determined that the base station to which the first priority cell belongs does not exist in the sectorial region, performing step S102a 10; when it is determined that the base station to which the first priority cell belongs exists in the sectorial area, step S102a11 is performed.
The significance of judging whether the base station to which the first priority cell belongs exists in the sector area is that the second priority cell firstly generates coverage interference on the nearer first priority cell, after the interference is generated on the nearer first priority cell, the coverage influence on the farther first priority cell is very small and can be ignored, and when the first priority cell is evaluated, the second priority cell having the coverage influence on the first priority cell is combined, meanwhile, some unnecessary calculations are avoided, and the calculation efficiency in the evaluation method is improved.
Optionally, referring to fig. 5, step S103 further includes S1032.
S1032, acquiring the non-co-station weight coefficient of the second priority non-co-station adjacent region.
It should be noted that, in step S1032, after step S102a10, that is, when the second priority neighboring cell is the second priority non-co-sited neighboring cell, the weight coefficient of the second priority neighboring cell is the non-co-sited weight coefficient.
Optionally, referring to fig. 6, step S1032 includes: S10321-S10323.
S10321, obtaining a distance coefficient of the second priority non-co-sited neighboring cell.
For example, according to the average station distance of the second priority base station, the distance from the coverage center point of the ith second priority non-co-sited neighboring cell to the first priority base station, and the fading factor, the distance coefficient G of the ith second priority non-co-sited neighboring cell may be calculated according to a second formula i The average station distance of the second priority base stations is the average value of the distance between two adjacent second priority base stations, the fading factor is at least used for indicating the degree of influence of the signal strength of the samples in the MR of the second priority non co-station adjacent region from the terminal corresponding to the samples to the second priority non co-station adjacent region corresponding to the second priority non co-station adjacent region, and the coverage center point is the center point of a cell covered by the base station;
the second formula is:
Figure BDA0002237907740000101
wherein, L is the average station distance of the second priority base station, because the base station is distributed unevenly, usually adopt different average station distances according to the area (urban area and non-urban area), K is the fading factor, K is usually obtained through the wireless transmission module, and then obtain more accurate numerical value through correction, generally take between 3.4 and 3.6, S i And the distance from the coverage center point of the ith second priority non-co-sited adjacent cell to the first priority base station is represented, wherein i is a positive integer.
For example, as shown in fig. 7, the coverage center point is a point B in the graph, the position of the coverage center point B is a middle point of a hexagon, and a distance from the coverage center point B to the point C of the second priority different-site base station is an average station distance of the second priority base station divided by 3, S i Covering the center point of the second priority non-co-sited adjacent cell to the first priority base stationThe distance of (c).
It should be noted that the cell covered by the base station is a hexagon in the figure (for example only), and 3 connected hexagons represent all areas covered by the base station.
S10322, obtaining the sector direction coefficient of the non-co-sited neighbor cell of the second priority.
For example, a sector direction coefficient B of the ith second priority non-co-sited neighboring cell may be calculated according to a third formula, based on a direction formed by taking the first priority base station as a starting point and taking the coverage center point of the ith second priority non-co-sited neighboring cell as an end point, a second included angle formed by the direction of the main lobe antenna of the first priority base station and a second preset included angle i
The third formula is:
Figure BDA0002237907740000111
wherein R is a second preset included angle T i And the second included angle is a second included angle corresponding to the ith second priority non-co-station adjacent region.
For example, as shown in fig. 7, point a is a first priority base station, point B is a coverage center point of an ith second priority non co-sited neighboring cell, 1 is a direction of a main lobe antenna of the first priority base station, a direction formed from point a to point B is a direction formed by taking the first priority base station as a starting point and taking the coverage center point of the ith second priority non co-sited neighboring cell as an end point, and 4 is a second included angle.
S10323, acquiring the non-co-station weight coefficient of the second priority non-co-station adjacent cell.
For example, the distance coefficient G of the ith second priority non-co-sited neighbor cell may be determined according to i And the sector direction coefficient B of the ith second priority non-co-sited neighbor cell i Calculating the non-co-station weight coefficient J of the ith second priority non-co-station adjacent cell according to a fourth formula i
The fourth formula is:
J i =G i *B i
optionally, step S104, determining the standard sample rate of the first priority cell according to the total number of samples and the number of standard samples in the MR of the first priority cell, the weight coefficient of the second priority neighboring cell, and the total number of samples and the number of standard samples in the MR of the second priority neighboring cell, includes: determining the standard sample rate of the first priority cell according to a fifth formula according to the total number of samples and the number of standard samples in the MR of the first priority cell, the co-station weight coefficient of the second priority co-station adjacent cell, the non-co-station weight coefficient of the second priority non-co-station adjacent cell, and the total number of samples and the number of standard samples in the MR of the second priority adjacent cell;
illustratively, the fifth formula is:
Figure BDA0002237907740000112
wherein e is the sample rate up to standard of the first priority cell, X is the number of samples up to standard in the MR of the first priority cell, M is the number of co-sited neighbors of the second priority, Y i Is the number of qualified samples, Q, in the MR of the ith second priority co-sited neighbor i The co-station weight coefficient of the ith second priority co-station adjacent region, N is the number of the second priority non-co-station adjacent regions, Z i Is the number of qualifying samples in the MR of the ith second priority non co-sited neighbor, J i Is the non-co-sited weight coefficient of the ith second priority non-co-sited neighbor, the total number of samples in the MR of the Pfirst priority cell, D i Is the total number of samples, U, in the MR of the ith second priority co-sited neighbor i Is the total number of samples in the MR of the ith second priority non-co-sited neighbor.
In the embodiment of the present application, the network device may be divided into functional modules or functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware, or may also be implemented in the form of a software functional module or functional unit. The division of the modules or units in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
As shown in fig. 8, an embodiment of the present application provides a cell evaluation apparatus 01, including: an acquisition module 02 and a processing module 03;
an obtaining module 02, configured to obtain the total number of samples in the MR of the first priority cell and the number of standard-meeting samples, where the standard-meeting samples are samples with signal strength greater than a preset threshold;
a processing module 03, configured to determine a second priority cell overlapping with a coverage area of the first priority cell as a second priority neighboring cell, where a priority of the second priority cell is greater than a priority of the first priority cell;
the obtaining module 02 is further configured to obtain a weight coefficient of the second priority neighboring cell, a total number of samples in the MR of the second priority neighboring cell, and a number of standard-reaching samples, where the weight coefficient of the second priority neighboring cell is at least used to indicate a coverage influence degree of the second priority neighboring cell on the first priority cell;
the processing module 03 is further configured to determine, according to the total number of samples and the number of standard-reaching samples in the MR of the first priority cell acquired by the acquiring module 02, the weight coefficient of the second priority neighboring cell acquired by the acquiring module 02, and the total number of samples and the number of standard-reaching samples in the MR of the second priority neighboring cell acquired by the acquiring module 02, an standard-reaching sample rate of the first priority cell;
wherein the sample rate up to standard is used to evaluate the first priority cell;
the processing module 03 is further configured to determine the first priority cell as the standard cell when it is determined that the standard sample rate is greater than the preset standard rate.
Optionally, the processing module 03 is further configured to: dividing the second priority adjacent region into a second priority co-sited adjacent region and a second priority non-co-sited adjacent region according to the distance between the first priority base station and the second priority base station, the direction of a main lobe antenna of the first priority base station and the direction of a main lobe antenna of the second priority base station;
the first priority base station is a base station to which the first priority cell belongs, and the second priority base station is a base station to which the second priority cell belongs;
optionally, the processing module 03 is specifically configured to:
determining a second priority base station with the distance from the first priority base station smaller than a first preset distance as a second priority co-sited base station; determining a second priority base station which is more than or equal to a first preset distance and less than a second preset distance from the first priority base station as a second priority non-co-base station;
when determining that a first included angle formed by the direction of a main lobe antenna of a second priority co-sited base station and the direction of a main lobe antenna of a first priority base station is smaller than or equal to a first preset included angle, determining a second priority cell corresponding to the second priority co-sited base station as a second priority co-sited adjacent cell;
and when the second priority non co-sited base station is determined to be in the preset flare angle range of the direction of the main lobe antenna of the first priority base station, determining a second priority cell corresponding to the second priority non co-sited base station as a second priority non co-sited adjacent cell.
Optionally, when the processing module 03 determines the second priority neighboring cell as the second priority co-sited neighboring cell, the weight coefficient of the second priority neighboring cell is a co-sited weight coefficient, and the obtaining module 02 is specifically configured to:
according to a first included angle formed by the direction of the main lobe antenna of the ith second-priority co-sited base station and the direction of the main lobe antenna of the first priority base station, which is determined by the processing module 03, and a first preset included angle, calculating a co-sited weight coefficient of an ith second-priority co-sited neighboring cell determined by the processing module 03 according to a first formula; i is a positive integer.
Optionally, the processing module 03 is specifically configured to:
after determining that the second priority co-sited base station is within a preset field angle range in which the direction of a main lobe antenna of the first priority base station is located, judging whether a base station to which the first priority cell belongs exists in a sector area within the preset field angle range, wherein the sector area is formed by taking the first priority base station as a circle center, taking the distance between the first priority base station and the second priority base station as a radius, and taking a field angle corresponding to the preset field angle range as a circle center;
when determining that the base station to which the first priority cell belongs exists in the sector area, excluding the second priority cell corresponding to the second priority non-co-sited base station from the second priority non-co-sited neighbor cell;
and when the base station to which the first priority cell belongs is determined not to exist in the sector area, determining the second priority cell corresponding to the second priority non-co-sited base station as a second priority non-co-sited neighbor cell.
Optionally, when the processing module 03 determines the second priority neighboring cell as the second priority non-co-sited neighboring cell, the weight coefficient of the second priority neighboring cell is a non-co-sited weight coefficient, and the obtaining module 02 is specifically configured to:
acquiring a distance coefficient and a sector direction coefficient of an ith second priority non-co-sited neighbor cell determined by the processing module 03;
according to the distance coefficient of the ith second priority non-co-sited neighboring cell determined by the processing module 03 and the sector direction coefficient of the ith second priority non-co-sited neighboring cell determined by the processing module 03, the non-co-sited weight coefficient of the ith second priority non-co-sited neighboring cell determined by the processing module 03 is calculated according to a fourth formula.
Optionally, the obtaining module 02 is specifically configured to: according to the average station distance of the second priority base station, the distance from the coverage center point of the ith second priority non-co-sited neighboring cell determined by the processing module 03 to the first priority base station and the fading factor, calculating the distance coefficient of the ith second priority non-co-sited neighboring cell determined by the processing module 03 according to a second formula, wherein the average station distance of the second priority base station is the average value of the distances between two adjacent second priority base stations, the fading factor is at least used for indicating the degree of influence of the signal strength of a sample in the MR of the second priority non-co-sited neighboring cell determined by the processing module 03 on the distance from the terminal corresponding to the sample to the second priority non-co-sited neighboring cell to which the second priority non-co-sited neighboring cell belongs, and the coverage center point is the center point of a cell covered by the base station; i is a positive integer.
Optionally, the obtaining module 02 is specifically configured to: according to a direction formed by taking the first priority base station as a starting point and taking the coverage center point of the ith second priority non co-sited neighboring cell determined by the processing module 03 as an end point, a second included angle formed by the direction of the main lobe antenna of the first priority base station and a second preset included angle, the sector direction coefficient of the ith second priority non co-sited neighboring cell determined by the processing module 03 is calculated according to a third formula.
Optionally, the processing module 03 is specifically configured to, according to the total number of samples and the number of standard samples in the MR of the first priority cell acquired by the acquiring module 02, obtain a co-station weight coefficient of the second priority co-station neighboring cell acquired by the acquiring module 02, obtain a co-station weight coefficient of the second priority non-co-station neighboring cell acquired by the acquiring module 02, and obtain the total number of samples and the number of standard samples in the MR of the second priority neighboring cell acquired by the acquiring module 02, determine the standard sample rate of the first priority cell according to a fifth formula.
The cell evaluation device provided by the embodiment of the invention comprises: the acquisition module is used for acquiring the total number of samples in the MR of the first priority cell and the number of standard-reaching samples, wherein the standard-reaching samples are samples with signal strength larger than a preset threshold value; the processing module is used for determining a second priority cell overlapped with the coverage area of the first priority cell as a second priority adjacent cell, and the priority of the second priority cell is greater than that of the first priority cell; the acquiring module is further configured to acquire a weight coefficient of the second priority neighboring cell, the total number of samples in the MR of the second priority neighboring cell, and the number of standard-reaching samples, where the weight coefficient of the second priority neighboring cell is at least used to indicate the coverage influence degree of the second priority neighboring cell on the first priority cell; the processing module is further configured to determine an up-to-standard sample rate of the first priority cell according to the total number of samples and the number of up-to-standard samples in the MR of the first priority cell acquired by the acquisition module, the weight coefficient of the second priority neighbor cell acquired by the acquisition module, and the total number of samples and the number of up-to-standard samples in the MR of the second priority neighbor cell acquired by the acquisition module; the processing module is further configured to determine the first priority cell as an up-to-standard cell when it is determined that the up-to-standard sample rate is greater than a preset up-to-standard rate. Therefore, according to the technical scheme provided by the embodiment of the invention, when the first priority cell is evaluated, the second priority neighbor cells overlapping the coverage range of the first priority cell are all considered for evaluation, so that the condition that the MR of the first priority cell cannot comprehensively reflect the coverage condition of the first priority cell due to the fact that the user terminal is switched to the first priority cell in the weak coverage area of the second priority cell is avoided, the calculated standard sample rate is more in line with the actual condition by combining the second priority neighbor cells having coverage influence with the first priority cell, the first priority cell is evaluated by using the standard sample rate, the obtained evaluation result can more objectively reflect the coverage condition of the first priority cell, and the accuracy of cell evaluation is improved.
Referring to fig. 9, an embodiment of the present invention further provides another cell evaluation apparatus, including a memory 41, a processor 42, a bus 43, and a communication interface 44; the memory 41 is used for storing computer execution instructions, and the processor 42 is connected with the memory 41 through a bus 43; when the cell evaluation apparatus is operating, the processor 42 executes computer-executable instructions stored by the memory 41 to cause the cell evaluation apparatus to perform the cell evaluation method provided in the above-described embodiments.
In particular implementations, processor 42(42-1 and 42-2) may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 9, for example, as one embodiment. And as an example, the cell evaluation apparatus may include a plurality of processors 42, such as processor 42-1 and processor 42-2 shown in fig. 9. Each of the processors 42 may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). Processor 42 may refer herein to one or more devices, circuits, and/or processing cores that process data (e.g., computer program instructions).
The memory 41 may be, but is not limited to, a read-only memory 41 (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, 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. The memory 41 may be self-contained and coupled to the processor 42 via a bus 43. The memory 41 may also be integrated with the processor 42.
In a specific implementation, the memory 41 is used for storing data in the present application and computer-executable instructions corresponding to software programs for executing the present application. The processor 42 may perform various functions of the cell evaluation apparatus by running or executing software programs stored in the memory 41 and calling up data stored in the memory 41.
The communication interface 44 is any device, such as a transceiver, for communicating with other devices or communication networks, such as a control system, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 44 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.
The bus 43 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extended ISA (enhanced industry standard architecture) bus, or the like. The bus 43 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.
An embodiment of the present invention further provides a computer storage medium, where the computer storage medium includes computer execution instructions, and when the computer execution instructions are executed on a computer, the computer is enabled to execute the cell evaluation method provided in the foregoing embodiment.
The embodiment of the present invention further provides a computer program, where the computer program may be directly loaded into a memory and contains a software code, and the computer program is loaded and executed by a computer, so as to implement the cell evaluation method provided in the foregoing embodiment.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (20)

1. A method for cell evaluation, comprising:
acquiring the total number of samples and the number of standard samples in a measurement report MR of a first priority cell, wherein the standard samples are samples with signal strength larger than a preset threshold value;
determining a second priority cell overlapping with the coverage area of the first priority cell as a second priority neighbor cell, wherein the priority of the second priority cell is greater than that of the first priority cell;
acquiring a weight coefficient of the second priority adjacent cell, the total number of samples in the MR of the second priority adjacent cell and the number of standard samples, wherein the weight coefficient of the second priority adjacent cell is at least used for indicating the coverage influence degree of the second priority adjacent cell on the first priority cell;
determining the qualified sample rate of the first priority cell according to the total number of samples and the number of qualified samples in the MR of the first priority cell, the weight coefficient of the second priority cell, and the total number of samples and the number of qualified samples in the MR of the second priority cell;
and when the standard sample rate is determined to be greater than a preset standard rate, determining the first priority cell as a standard cell.
2. The cell evaluation method of claim 1, wherein the determining that the second priority cell overlapping the coverage of the first priority cell is a second priority neighbor cell comprises:
dividing the second priority adjacent region into a second priority co-sited adjacent region and a second priority non-co-sited adjacent region according to the distance between a first priority base station and a second priority base station, the direction of a main lobe antenna of the first priority base station and the direction of a main lobe antenna of the second priority base station;
the first priority base station is a base station to which the first priority cell belongs, and the second priority base station is a base station to which the second priority cell belongs.
3. The cell evaluation method of claim 2, wherein the dividing the second priority neighbor into a second priority co-sited neighbor and a second priority non-co-sited neighbor according to a distance between a first priority base station and a second priority base station, a direction of a main lobe antenna of the first priority base station, and a direction of a main lobe antenna of the second priority base station comprises:
determining the second priority base station with the distance from the first priority base station smaller than a first preset distance as a second priority co-sited base station; determining a second priority base station which is more than or equal to the first preset distance and less than a second preset distance from the first priority base station as a second priority non-co-station base station;
determining that a first included angle formed by the direction of the main lobe antenna of the second priority co-sited base station and the direction of the main lobe antenna of the first priority base station is smaller than or equal to a first preset included angle, and determining the second priority cell corresponding to the second priority co-sited base station as the second priority co-sited neighboring cell;
when the second priority non co-sited base station is determined to be within a preset flare angle range of the direction of the main lobe antenna of the first priority base station, determining the second priority cell corresponding to the second priority non co-sited base station as the second priority non co-sited adjacent cell.
4. The cell evaluation method of claim 3, wherein when the second priority neighboring cell is the second priority co-sited neighboring cell, the weight coefficient of the second priority neighboring cell is a co-sited weight coefficient, the obtaining the weight coefficient of the second priority neighboring cell comprises obtaining the co-sited weight coefficient of the second priority co-sited neighboring cell, and the obtaining the co-sited weight coefficient of the second priority co-sited neighboring cell comprises:
according to a first included angle formed by the direction of a main lobe antenna of the ith second priority co-sited base station and the direction of a main lobe antenna of the first priority base station and the first preset included angle, calculating the ith second priority according to a first formulaCommon station weight coefficient Q of common station adjacent region i
The first formula is:
Figure FDA0002237907730000021
wherein M is the first preset included angle V i And a first included angle formed by the direction of the main lobe antenna of the ith second priority co-sited base station and the direction of the main lobe antenna of the first priority base station is formed, wherein i is a positive integer.
5. The cell evaluation method of claim 3, wherein the determining the second priority cell corresponding to the second priority co-sited base station as the second priority co-sited neighbor cell when determining that the second priority co-sited base station is within a preset opening angle range in which the direction of the main lobe antenna of the first priority base station is located comprises:
after determining that the second priority co-sited base station is within a preset field angle range in which the direction of a main lobe antenna of the first priority base station is located, judging whether a base station to which the first priority cell belongs exists in a sector area within the preset field angle range, wherein the sector area is formed by taking the first priority base station as a circle center, taking the distance between the first priority base station and the second priority base station as a radius, and taking a field angle corresponding to the preset field angle range as a circle center;
when determining that the base station to which the first priority cell belongs exists in the sector area, excluding the second priority cell corresponding to the second priority non-co-sited base station from the second priority non-co-sited neighbor cell;
and when the base station to which the first priority cell belongs is determined not to exist in the sector area, determining the second priority cell corresponding to the second priority non-co-sited base station as a second priority non-co-sited neighbor cell.
6. The cell evaluation method of claim 4, wherein when the second priority neighbor cell is the second priority non-co-sited neighbor cell, the weight coefficient of the second priority neighbor cell is a non-co-sited weight coefficient, the obtaining the weight coefficient of the second priority neighbor cell comprises obtaining the non-co-sited weight coefficient of the second priority non-co-sited neighbor cell, and the obtaining the non-co-sited weight coefficient of the second priority non-co-sited neighbor cell comprises:
obtaining a distance coefficient and a sector direction coefficient of the ith second priority non-co-sited neighbor cell;
according to the distance coefficient G of the ith second priority non-co-sited adjacent cell i And the sector direction coefficient B of the ith second priority non-co-sited neighbor cell i Calculating the non-co-sited weight coefficient J of the ith second priority non-co-sited adjacent cell according to a fourth formula i
The fourth formula is:
J i =G i *B i
7. the cell evaluation method of claim 6, wherein the obtaining the distance coefficient of the ith second priority non-co-sited neighbor cell comprises:
calculating a distance coefficient G of the ith second priority non-co-sited adjacent cell according to a second formula and according to the average station distance of the second priority base station, the distance from the coverage center point of the ith second priority non-co-sited adjacent cell to the first priority base station and the fading factor i The average station distance of the second priority base station is an average value of distances between two adjacent second priority base stations, the fading factor is at least used for indicating the degree of influence of the signal strength of a sample in the MR of the second priority non co-sited neighbor cell on the distance from a terminal corresponding to the sample to the second priority non co-sited neighbor base station to which the second priority non co-sited neighbor cell belongs, and the coverage center point is a center point of a cell covered by the base station;
the second formula is:
Figure FDA0002237907730000031
wherein L is the average station distance of the second priority base station, K is the fading factor, S i And the distance from the coverage center point of the ith second priority non-co-sited neighboring cell to the first priority base station is represented, wherein i is a positive integer.
8. The cell evaluation method of claim 7, wherein the obtaining the sector direction coefficient of the ith second priority non-co-sited neighbor cell comprises:
according to a direction formed by taking the first priority base station as a starting point and taking the coverage center point of the ith second priority non-co-sited adjacent cell as an end point, a second included angle formed by the direction of a main lobe antenna of the first priority base station and a second preset included angle, a sector direction coefficient B of the ith second priority non-co-sited adjacent cell is calculated according to a third formula i
The third formula is:
Figure FDA0002237907730000041
wherein R is the second preset included angle T i And the second included angle is a second included angle corresponding to the ith non-co-sited adjacent cell with the second priority.
9. The method of claim 6, wherein the determining the qualified sample rate of the first priority cell according to the total number of samples and the number of qualified samples in the MR of the first priority cell, the weighting coefficient of the second priority cell, and the total number of samples and the number of qualified samples in the MR of the second priority cell comprises:
determining the standard sample rate of the first priority cell according to a fifth formula according to the total number of samples and the number of standard samples in the MR of the first priority cell, the co-station weight coefficient of the second priority co-station neighboring cell, the non-co-station weight coefficient of the second priority non-co-station neighboring cell, and the total number of samples and the number of standard samples in the MR of the second priority neighboring cell;
the fifth formula is:
Figure FDA0002237907730000042
wherein e is the up-to-standard sample rate of the first priority cell, X is the number of up-to-standard samples in the MR of the first priority cell, M is the number of the second priority co-sited neighbor cells, Y is i Is the number of qualified samples, Q, in the MR of the ith second priority co-sited neighbor i The co-station weight coefficient of the ith second priority co-station adjacent region, N is the number of the second priority non-co-station adjacent regions, Z i The number of qualified samples in the MR of the ith second priority non-co-sited neighbor region, J i The non co-station weight coefficient of the ith second priority non co-station adjacent cell, the total number of samples in the MR of the first priority cell, and D i Is the total number of samples, U, in the MR of the ith second priority co-sited neighbor i The total number of samples in the MR of the ith second priority non-co-sited neighbor.
10. A cell evaluation apparatus, comprising:
the acquisition module is used for acquiring the total number of samples in the MR of the first priority cell and the number of standard-reaching samples, wherein the standard-reaching samples are samples with signal strength larger than a preset threshold value;
a processing module, configured to determine a second priority cell overlapping with a coverage area of the first priority cell as a second priority neighboring cell, where a priority of the second priority cell is greater than a priority of the first priority cell;
the obtaining module is further configured to obtain a weight coefficient of the second priority neighboring cell, a total number of samples in the MR of the second priority neighboring cell, and a number of samples reaching the standard, where the weight coefficient of the second priority neighboring cell is at least used to indicate a coverage influence degree of the second priority neighboring cell on the first priority cell;
the processing module is further configured to determine an up-to-standard sample rate of the first priority cell according to the total number of samples and the number of up-to-standard samples in the MR of the first priority cell acquired by the acquisition module, the weight coefficient of the second priority neighboring cell acquired by the acquisition module, and the total number of samples and the number of up-to-standard samples in the MR of the second priority neighboring cell acquired by the acquisition module;
the processing module is further configured to determine that the first priority cell is an up-to-standard cell when it is determined that the up-to-standard sample rate is greater than a preset up-to-standard rate.
11. The cell evaluation apparatus of claim 10, wherein after the processing module determines a second priority cell overlapping with the coverage of the first priority cell as a second priority neighbor cell, the processing module is further configured to:
dividing the second priority adjacent region into a second priority co-sited adjacent region and a second priority non-co-sited adjacent region according to the distance between a first priority base station and a second priority base station, the direction of a main lobe antenna of the first priority base station and the direction of a main lobe antenna of the second priority base station;
the first priority base station is a base station to which the first priority cell belongs, and the second priority base station is a base station to which the second priority cell belongs.
12. The cell evaluation apparatus of claim 11, wherein the processing module is specifically configured to:
determining the second priority base station with the distance from the first priority base station smaller than a first preset distance as a second priority co-sited base station; determining a second priority base station which is more than or equal to the first preset distance and less than a second preset distance from the first priority base station as a second priority non-co-station base station;
when determining that a first included angle formed by the direction of the main lobe antenna of the second priority co-sited base station and the direction of the main lobe antenna of the first priority base station is smaller than or equal to a first preset included angle, determining the second priority cell corresponding to the second priority co-sited base station as the second priority co-sited adjacent cell;
when the second priority co-sited base station is determined to be within a preset flare angle range of the direction of the main lobe antenna of the first priority base station, determining the second priority cell corresponding to the second priority co-sited base station as the second priority co-sited neighbor cell.
13. The cell evaluation apparatus of claim 12, wherein when the processing module determines the second priority neighboring cell as the second priority co-sited neighboring cell, the weight coefficient of the second priority neighboring cell is a co-sited weight coefficient, and the obtaining module is specifically configured to:
according to a first included angle formed by the direction of the main lobe antenna of the ith second-priority co-sited base station and the direction of the main lobe antenna of the first priority base station, which is determined by the processing module, and the first preset included angle, calculating a co-sited weight coefficient of the ith second-priority co-sited adjacent region, which is determined by the processing module, according to a first formula; i is a positive integer.
14. The cell evaluation apparatus of claim 12, wherein the processing module is specifically configured to:
after determining that the second priority co-sited base station is within a preset field angle range in which the direction of a main lobe antenna of the first priority base station is located, judging whether a base station to which the first priority cell belongs exists in a sector area within the preset field angle range, wherein the sector area is formed by taking the first priority base station as a circle center, taking the distance between the first priority base station and the second priority base station as a radius, and taking a field angle corresponding to the preset field angle range as a circle center;
when determining that the base station to which the first priority cell belongs exists in the sector area, excluding the second priority cell corresponding to the second priority non-co-sited base station from the second priority non-co-sited neighbor cell;
and when the base station to which the first priority cell belongs is determined not to exist in the sector area, determining the second priority cell corresponding to the second priority non-co-sited base station as a second priority non-co-sited neighbor cell.
15. The cell evaluation apparatus of claim 13, wherein when the processing module determines the second priority neighboring cell as the second priority non-co-sited neighboring cell, the weight coefficient of the second priority neighboring cell is a non-co-sited weight coefficient, and the obtaining module is specifically configured to:
obtaining a distance coefficient and a sector direction coefficient of the ith second priority non-co-sited neighbor cell determined by the processing module;
and according to the distance coefficient of the ith second-priority non-co-sited neighboring cell determined by the processing module and the sector direction coefficient of the ith second-priority non-co-sited neighboring cell determined by the processing module, calculating the non-co-sited weight coefficient of the ith second-priority non-co-sited neighboring cell determined by the processing module according to a fourth formula.
16. The cell evaluation apparatus of claim 15, wherein the obtaining module is specifically configured to:
calculating a distance coefficient of the ith second priority non-co-sited neighboring cell determined by the processing module according to a second formula and according to the average station distance of the second priority base station, the distance from the coverage center point of the ith second priority non-co-sited neighboring cell determined by the processing module to the first priority base station and a fading factor, wherein the average station distance of the second priority base station is an average value of the distances between two adjacent second priority base stations, the fading factor is at least used for indicating the degree of influence of the signal strength of a sample in the MR of the second priority non-co-sited neighboring cell determined by the processing module on the distance from a terminal corresponding to the sample to the second priority non-co-sited neighboring cell to which the second priority non-co-sited neighboring cell belongs, and the coverage center point is the center point of a cell covered by the base station; i is a positive integer.
17. The cell evaluation apparatus of claim 16, wherein the obtaining module is specifically configured to:
and calculating the sector direction coefficient of the ith second priority non-co-sited neighboring cell determined by the processing module according to a third formula, wherein the sector direction coefficient is formed by taking the first priority base station as a starting point and taking the coverage center point of the ith second priority non-co-sited neighboring cell determined by the processing module as an end point, a second included angle formed by the coverage center point and the direction of a main lobe antenna of the first priority base station, and a second preset included angle.
18. The cell evaluation apparatus of claim 15, wherein the processing module is specifically configured to:
according to the total number of samples and the number of standard samples in the MR of the first priority cell acquired by the acquisition module, the co-station weight coefficient of the second priority co-station neighboring cell acquired by the acquisition module, the co-station weight coefficient of the second priority non-co-station neighboring cell acquired by the acquisition module, and the total number of samples and the number of standard samples in the MR of the second priority neighboring cell acquired by the acquisition module, the standard sample rate of the first priority cell is determined according to a fifth formula.
19. A cell evaluation apparatus comprising a memory, a processor, a bus and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through the bus; the processor executes the computer-executable instructions stored by the memory when the cell evaluation device is operating to cause the cell evaluation device to perform the method of any of claims 1-9.
20. A computer storage medium comprising computer executable instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-9.
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