CN106888463B - Method and device for determining weak coverage area - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 238000005070 sampling Methods 0.000 claims description 40
- 238000004891 communication Methods 0.000 abstract description 36
- 230000001934 delay Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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Abstract
The invention discloses a method and a device for determining a weak coverage area, relates to the technical field of communication networks, and can improve the accuracy of determining the weak coverage area. The invention determines the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal; determining a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius; and determining an area except for the circular area in the weak coverage cell as the weak coverage area. The scheme provided by the invention is adopted when determining the weak coverage area.
Description
Technical Field
The present invention relates to the field of communications network technologies, and in particular, to a method and an apparatus for determining a weak coverage area.
Background
In the field of planning and optimizing a communication network, weak coverage means that the signal strength of an area covered by the communication network cannot meet the normal communication requirement of a user, and since the weak coverage directly affects the communication quality of the user, drawing the weak coverage area of the communication network and adjusting the weak coverage area are very important works.
However, since the MR is a measurement report in units of cells, the minimum unit of the weak coverage area determined by the MR is also a cell, and there is a high possibility that a certain part of one cell is an area with good coverage of the communication network and another part is a weak coverage area, so that the accuracy of weak coverage area mapping based on data in the MR is low.
Disclosure of Invention
The invention provides a method and a device for determining a weak coverage area, which can improve the accuracy of determining the weak coverage area.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for determining a weak coverage area, including:
determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal;
determining a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius;
determining an area of the weak coverage cell other than the circular area as a weak coverage area.
In a second aspect, the present invention provides an apparatus for determining a weak coverage area, including:
a determining unit, configured to determine a distance between a weak coverage boundary of a weak coverage cell and a base station according to a measurement report MR of a terminal;
the determining unit is further configured to determine a circular area by taking the position of the base station as a circle center and taking the distance between the weak coverage boundary and the base station as a radius;
the determining unit is further configured to determine an area other than the circular area in the weak coverage cell as a weak coverage area.
The method and the device for determining the weak coverage area provided by the invention determine the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal, then determine a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius, and finally determine the area except the circular area in the weak coverage cell as the weak coverage area. Compared with the prior art, in which the minimum unit of the weak coverage area determined according to the MR is a cell, and it is likely that a certain part of one cell is an area with good coverage of the communication network, and another part is a weak coverage area, so that the accuracy of drawing the weak coverage area according to the data in the MR is low, in the present invention, since the radius of the circular area is the distance between the weak coverage boundary and the base station, the whole circular area can be regarded as an area with relatively good coverage of the communication network signal in a certain weak coverage cell, and because the magnitude of the coverage strength of the communication network signal at a certain position in the cell is related to the distance from the position to the base station, the farther the distance, the smaller the coverage strength of the communication network signal at the position is, and therefore, the area outside the circular area can be regarded as an area with relatively poor coverage of the communication network in the weak coverage cell, instead of considering the entire weak coverage cell as a weak coverage area, it can be seen that the present invention improves the accuracy of determining a weak coverage area.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for determining a weak coverage area according to an embodiment of the present invention;
fig. 2 is a flowchart of another method for determining a weak coverage area according to an embodiment of the present invention;
fig. 3 is a flowchart of another method for determining a weak coverage area according to an embodiment of the present invention;
fig. 4 is a schematic logical structure diagram of an apparatus for determining a weak coverage area according to an embodiment of the present invention;
fig. 5 is a schematic logical structure diagram of a terminal 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.
In order to improve the accuracy of determining the weak coverage area, an embodiment of the present invention provides a method for determining the weak coverage area, as shown in fig. 1, where the method includes:
101. and determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal.
The MR comprises a signal propagation delay value received by the terminal and a level value of a signal received by the terminal.
It should be noted that the terminal reports the measurement report to the base station management system, and the signal propagation delay value is a phase at which a forward sequence signal of the terminal reaches the NodeB, so the signal propagation delay value can reflect a distance from the sampling terminal to the base station.
102. And determining a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius.
It can be understood that, in a cell, the farther away from the base station, the lower the communication network signal strength, so that, in a circular area determined by taking the distance between the weak coverage boundary and the base station as a radius and taking the position of the base station as a center, the communication network signal strength is greater, and the area with good communication network signal coverage can be defined as an area with good communication network signal coverage by default.
103. And determining an area except for the circular area in the weak coverage cell as the weak coverage area.
It can be understood that, at the edge position of the weak coverage cell, the communication network signal strength is poor, and therefore, an area other than the circular area in the weak coverage cell may be determined as the weak coverage area.
It should be noted that, after determining an area other than the circular area in the weak coverage cell as the weak coverage area, the method further includes: and determining the establishment position of the new base station according to the geographical position of the weak coverage area so as to meet the use requirement of the user on the communication network.
The method for determining the weak coverage area determines the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal, then determines a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius, and finally determines the area except the circular area in the weak coverage cell as the weak coverage area. Compared with the prior art, in which the minimum unit of the weak coverage area determined according to the MR is a cell, and it is likely that a certain part of one cell is an area with good coverage of the communication network, and another part is a weak coverage area, so that the accuracy of drawing the weak coverage area according to the data in the MR is low, in the present invention, since the radius of the circular area is the distance between the weak coverage boundary and the base station, the whole circular area can be regarded as an area with relatively good coverage of the communication network signal in a certain weak coverage cell, and because the magnitude of the coverage strength of the communication network signal at a certain position in the cell is related to the distance from the position to the base station, the farther the distance, the smaller the coverage strength of the communication network signal at the position is, and therefore, the area outside the circular area can be regarded as an area with relatively poor coverage of the communication network in the weak coverage cell, instead of considering the entire weak coverage cell as a weak coverage area, it can be seen that the present invention improves the accuracy of determining a weak coverage area.
It should be noted that, the object on which the methods of step 101 to step 103 are based is a weak coverage cell, so before the method shown in fig. 1 is executed, a weak coverage cell should be first screened out in a cell, and the method shown in fig. 1 is executed for the weak coverage cell, based on which, as shown in fig. 2, before the distance between the weak coverage boundary of the weak coverage cell and the base station is determined according to the measurement report MR of the terminal in step 101, the method further includes: and 104.
104. And determining the weak coverage cell according to the MR.
It should be noted that, the MR carries the level value of the terminal received signal, and when the average level value of the terminal received signal in a certain cell is lower than the preset level value, the cell may be determined as a weak coverage cell.
Only if a weak coverage cell is determined from the MR can an operational basis be provided for embodiments of the present invention.
It is understood that the distance between the weak coverage boundary of the weak coverage cell and the base station can be determined according to the measurement report MR of the terminal, and based on this, as shown in fig. 3, the step 101 of determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal includes: steps 1011 to 1014.
1011. And determining the distance from each sampling terminal to the base station according to the MR of the sampling terminal.
And the distance S from the sampling terminal to the base station is 3.7 c/2T, wherein c is the light speed, and T is the propagation delay value of the sampling terminal.
1012. And determining the distance interval of each terminal according to the distance from the sampling terminal to the base station.
1013. The number of sampling terminals within each distance interval is determined.
1014. And determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the number of the sampling terminals in each distance interval.
As illustrated in steps 1011 to 1014, 1chip may represent a delay distance of 78 meters, i.e. the speed of light divided by the chip rate, but a delay distance of 78 meters is for a round trip process, so that for a single trip, 1chip is equivalent to 39 meters, which is equal to about 40 meters, and after receiving the MR from the terminal, the base station of the cell detects the number of delayed chips through the detection window, and if delaying by 3 chips, the delay distance is 234 meters. However, report intervals of propagation delays presented by base station management systems of different manufacturers are different, for example, the report interval of propagation delay of a certain manufacturer is as follows:
taking PD [0] as an example, the range of delay [0, 5.9] × 40 ═ 0, 240] delays represents the distance ═ 0, 240] meters. That is PD [0] represents the number of sampling points in 0-240 m of the cell.
Taking PD [1] as an example, the range of delay [6, 11.8] × 40 ═ 240, 480] delays represents distance ═ 240, 480] meters. That is PD [1] represents the number of sampling points in 240-480 m of the cell.
Taking PD [2] as an example, the time delay range [12, 17.9] x 40 is [480, 720] time delays, and the representative distance is [480, 720] meters. That is PD 2 represents the sampling point number in 480-720 m of the cell.
By analogy, finally, the propagation delay information carried in the MR report fed back by the base station management system is the number value of the MR reported by the cell of each base station from the sampling terminal in each interval of PD [0] -PD [ N ]. Finding out an X value when (PD [0] +. + -. + PD [ X ])/(PD [0] +. + -. + PD [ N ]) > (70 percent) (the threshold value is determined by an operator strategy), taking the distance value between PD [ X ] intervals as the distance between the weak coverage boundary of the weak coverage cell and the base station, taking the distance as a radius, taking the position of the base station as a center of a circle to determine a circular area, and finally determining the area except the circular area in the weak coverage cell as the weak coverage area.
It should be noted that when the distance between the weak coverage boundary of the weak coverage cell and the base station is determined, the weak coverage area can be determined more accurately.
Based on the method flow shown in fig. 1, in order to improve the accuracy of determining a weak coverage area, an embodiment of the present invention provides an apparatus for determining a weak coverage area, as shown in fig. 4, the apparatus includes: a determination unit 401.
A determining unit 401, configured to determine a distance between a weak coverage boundary of a weak coverage cell and a base station according to a measurement report MR of a terminal.
The determining unit 401 is further configured to determine a circular area by taking the position of the base station as a center of a circle and taking the distance between the weak coverage boundary and the base station as a radius.
The determining unit 401 is further configured to determine an area other than the circular area in the weak coverage cell as the weak coverage area.
In another implementation provided by an embodiment of the present invention,
the determining unit 401 is further configured to determine the weak coverage cell according to an MR, where the MR includes a signal propagation delay value received by the terminal and a level value of a signal received by the terminal.
In another implementation provided by an embodiment of the present invention,
a determining unit 401, configured to determine, according to the MR of the sampling terminal, a distance from each sampling terminal to the base station; determining a distance interval of each terminal according to the distance from the sampling terminal to the base station; determining the number of sampling terminals in each distance interval; and determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the number of the sampling terminals in each distance interval.
In another implementation provided by an embodiment of the present invention,
the determining unit 401 is further configured to determine the establishment location of the new base station according to the geographical location of the weak coverage area.
In another implementation provided by an embodiment of the present invention,
and the distance S between the sampling terminal and the base station is 3.7 c/2T, wherein c is the light speed, and T is the propagation delay value of the sampling terminal.
According to the device for determining the weak coverage area, the determining unit determines the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal, then determines a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius, and finally determines the area except the circular area in the weak coverage cell as the weak coverage area. Compared with the prior art, in which the minimum unit of the weak coverage area determined according to the MR is a cell, and it is likely that a certain part of one cell is an area with good coverage of the communication network, and another part is a weak coverage area, so that the accuracy of drawing the weak coverage area according to the data in the MR is low, in the present invention, since the radius of the circular area is the distance between the weak coverage boundary and the base station, the whole circular area can be regarded as an area with relatively good coverage of the communication network signal in a certain weak coverage cell, and because the magnitude of the coverage strength of the communication network signal at a certain position in the cell is related to the distance from the position to the base station, the farther the distance, the smaller the coverage strength of the communication network signal at the position is, and therefore, the area outside the circular area can be regarded as an area with relatively poor coverage of the communication network in the weak coverage cell, instead of considering the entire weak coverage cell as a weak coverage area, it can be seen that the present invention improves the accuracy of determining a weak coverage area.
An embodiment of the present invention further provides a terminal, as shown in fig. 5, where the terminal is a schematic diagram of a hardware structure of the apparatus described in fig. 4. Wherein, this terminal station can include: memory 501, processor 502, transceiver 503, and bus 504.
The Memory 501 may be a ROM (Read Only Memory), a static Memory device, a dynamic Memory device, or a RAM (Random Access Memory). The memory 501 may store an operating system and other applications. When the technical solution provided by the embodiment of the present invention is implemented by software or firmware, a program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 501 and executed by the processor 502.
The transceiver 503 is used for communication between the apparatus and other devices or communication networks (such as but not limited to ethernet, RAN radio access Network, radio access Network), WLAN (Wireless Local Area Network), etc.).
The processor 502 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the technical solutions provided by the embodiments of the present invention.
It should be noted that although the hardware depicted in FIG. 5 only shows the memory 501, processor 502, transceiver 503, and bus 504. However, in the implementation, it will be understood by those skilled in the art that the terminal also includes other components necessary for normal operation. Also, hardware components for performing other functions may be included, as would be apparent to one skilled in the art, according to particular needs.
Specifically, when the terminal shown in fig. 5 is used to implement the apparatus shown in the embodiment of fig. 4, the processor 502 in the terminal is configured to determine the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal.
The processor 502 is further configured to determine a circular area by taking the position of the base station as a center of a circle and taking the distance between the weak coverage boundary and the base station as a radius.
The processor 502 is further configured to determine an area other than the circular area in the weak coverage cell as the weak coverage area.
In another implementation provided by an embodiment of the present invention,
the processor 502 is further configured to determine a weak coverage cell according to an MR, where the MR includes a signal propagation delay value received by the terminal and a level value of a signal received by the terminal.
The processor 502 is further configured to determine a distance from each sampling terminal to the base station according to the MR of the sampling terminal; determining a distance interval of each terminal according to the distance from the sampling terminal to the base station; determining the number of sampling terminals in each distance interval; and determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the number of the sampling terminals in each distance interval.
The processor 502 is further configured to determine an established location of the new base station based on the geographical location of the weak coverage area.
And the distance S between the sampling terminal and the base station is 3.7 c/2T, wherein c is the light speed, and T is the propagation delay value of the sampling terminal.
According to the terminal provided by the invention, the processor determines the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal, then determines a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius, and finally determines the area except the circular area in the weak coverage cell as the weak coverage area. Compared with the prior art, in which the minimum unit of the weak coverage area determined according to the MR is a cell, and it is likely that a certain part of one cell is an area with good coverage of the communication network, and another part is a weak coverage area, so that the accuracy of drawing the weak coverage area according to the data in the MR is low, in the present invention, since the radius of the circular area is the distance between the weak coverage boundary and the base station, the whole circular area can be regarded as an area with relatively good coverage of the communication network signal in a certain weak coverage cell, and because the magnitude of the coverage strength of the communication network signal at a certain position in the cell is related to the distance from the position to the base station, the farther the distance, the smaller the coverage strength of the communication network signal at the position is, and therefore, the area outside the circular area can be regarded as an area with relatively poor coverage of the communication network in the weak coverage cell, instead of considering the entire weak coverage cell as a weak coverage area, it can be seen that the present invention improves the accuracy of determining a weak coverage area.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be substantially implemented or a part of the technical solutions contributing to the prior art may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a hard disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A method of determining a weak coverage area, the method comprising:
determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal;
determining a circular area by taking the position of the base station as the center of a circle and the distance between the weak coverage boundary and the base station as the radius;
determining an area except the circular area in the weak coverage cell as a weak coverage area;
before the determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal, the method further comprises:
and determining the weak coverage cell according to the MR, wherein the MR comprises a signal propagation delay value received by the terminal and a level value of a signal received by the terminal.
2. The method for determining the weak coverage area according to claim 1, wherein the determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the measurement report MR of the terminal comprises:
determining the distance from each sampling terminal to the base station according to the MR of the sampling terminal;
determining a distance interval of each terminal according to the distance from the sampling terminal to the base station;
determining the number of sampling terminals in each distance interval;
and determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the number of the sampling terminals in each distance interval.
3. The method of determining a weak coverage area according to claim 1, wherein after determining an area other than the circular area in the weak coverage cell as a weak coverage area, the method further comprises:
and determining the establishment position of the new base station according to the geographical position of the weak coverage area.
4. A method of determining a weak coverage area according to claim 2 or 3,
and the distance S between the sampling terminal and the base station is 3.7 c/2T, wherein c is the light speed, and T is the propagation delay value of the sampling terminal.
5. An apparatus for determining a weak coverage area, the apparatus comprising:
a determining unit, configured to determine a distance between a weak coverage boundary of a weak coverage cell and a base station according to a measurement report MR of a terminal;
the determining unit is further configured to determine a circular area by taking the position of the base station as a circle center and taking the distance between the weak coverage boundary and the base station as a radius;
the determining unit is further configured to determine an area other than the circular area in the weak coverage cell as a weak coverage area; and the method is further used for determining the weak coverage cell according to the MR, wherein the MR comprises a signal propagation delay value received by the terminal and a level value of a signal received by the terminal.
6. An apparatus for determining a weak coverage area according to claim 5,
the determining unit is further configured to determine a distance from each sampling terminal to the base station according to an MR of the sampling terminal; determining a distance interval of each terminal according to the distance from the sampling terminal to the base station; determining the number of sampling terminals in each distance interval; and determining the distance between the weak coverage boundary of the weak coverage cell and the base station according to the number of the sampling terminals in each distance interval.
7. An apparatus for determining a weak coverage area according to claim 5,
the determining unit is further configured to determine the establishment location of the new base station according to the geographical location of the weak coverage area.
8. An apparatus for determining a weak coverage area according to claim 6 or 7,
and the distance S between the sampling terminal and the base station is 3.7 c/2T, wherein c is the light speed, and T is the propagation delay value of the sampling terminal.
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| CN109327840B (en) * | 2017-08-01 | 2022-05-17 | 中国电信股份有限公司 | Method and device for identifying boundary coverage base station |
| CN108601029B (en) * | 2018-03-15 | 2021-03-12 | 中国联合网络通信集团有限公司 | Base station construction evaluation method and device |
| CN110557775B (en) * | 2018-05-15 | 2023-04-25 | 中国移动通信集团浙江有限公司 | Method and device for determining weak coverage cell |
| CN111031550B (en) * | 2018-10-09 | 2022-08-30 | 中国移动通信集团甘肃有限公司 | Method and device for judging weak coverage area of wireless network |
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