CN108124269B - Network coverage determination method and device - Google Patents

Network coverage determination method and device Download PDF

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CN108124269B
CN108124269B CN201611062191.XA CN201611062191A CN108124269B CN 108124269 B CN108124269 B CN 108124269B CN 201611062191 A CN201611062191 A CN 201611062191A CN 108124269 B CN108124269 B CN 108124269B
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rsrp
rsrp value
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CN108124269A (en
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张敏
王大鹏
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/06—Testing, supervising or monitoring using simulated traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Abstract

The invention provides a method and a device for determining network coverage, wherein the method comprises the following steps: acquiring a Reference Signal Received Power (RSRP) value on a measurement area of a target plane in a preset three-dimensional space; determining an RSRP value on an estimation region of the target plane according to the RSRP value on the measurement region; determining an RSRP value on the target plane according to the RSRP value on the measurement region and the RSRP value on the estimation region; and determining the network coverage of the preset three-dimensional space according to the RSRP value on the target plane. According to the embodiment of the invention, the RSRP value of the area which is not measured is estimated through the RSRP value of the target plane which can be measured, so that the RSRP value in the whole preset three-dimensional space can be determined; further, the coverage condition of the LTE network in the three-dimensional space can be evaluated according to the estimated RSRP value and the measured RSRP value.

Description

Network coverage determination method and device
Technical Field
The present invention relates to the field of wireless communication network technologies, and in particular, to a method and an apparatus for determining network coverage.
Background
Unmanned aerial vehicles can be classified into military and civil applications according to the application field. For military use, unmanned aerial vehicles divide into reconnaissance aircraft and target drone. In the civil aspect, the unmanned aerial vehicle + the industry application is really just needed by the unmanned aerial vehicle; at present, the unmanned aerial vehicle is applied to the fields of aerial photography, agriculture, plant protection, self-shooting, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, romantic manufacturing and the like, the application of the unmanned aerial vehicle is greatly expanded, and the developed world also actively expands the industrial application and develops the unmanned aerial vehicle technology.
The control technology of the unmanned aerial vehicle is a hot problem of current research, and for civil unmanned aerial vehicle control at present, short-distance communication control such as WIFI and Bluetooth is generally used, and the defects are that the measurement and control distance is short (generally not more than several kilometers), and the use scene of the unmanned aerial vehicle is severely limited.
Along with the rapid development of the mobile communication 4G network, the network coverage is wider and wider, the urban area basically achieves seamless coverage, the network speed is also improved continuously, the network delay is reduced compared with the traditional communication network, and the network performance is improved, so that the mobile communication network can meet the bearing of the control signal of the unmanned aerial vehicle.
At present, the coverage of the 4G network is mainly the space of the movement of people such as roads, pavements, buildings and the like. Unmanned aerial vehicle mainly works above the space ground, and 4G network coverage area has certain coincidence with unmanned aerial vehicle's work interval, nevertheless also has mismatching of certain degree, and how can't measure the coverage condition of mobile network in the space through prior art's method.
Disclosure of Invention
The invention aims to provide a method and a device for determining network coverage, which solve the problem that the network coverage condition of the network coverage of a three-dimensional space is unclear because RSRP values cannot be measured for all points in the three-dimensional space in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a method for determining network coverage, including:
acquiring a Reference Signal Received Power (RSRP) value on a measurement area of a target plane in a preset three-dimensional space;
determining an RSRP value on an estimation region of the target plane according to the RSRP value on the measurement region;
determining an RSRP value on the target plane according to the RSRP value on the measurement region and the RSRP value on the estimation region;
and determining the network coverage of the preset three-dimensional space according to the RSRP value on the target plane.
The step of determining the network coverage strength of the preset three-dimensional space according to the RSRP value on the target plane comprises the following steps:
determining an RSRP value on a target space region between two adjacent layers of target planes according to the RSRP values on the two adjacent layers of target planes;
and determining the network coverage of the preset three-dimensional space according to the RSRP values on the two adjacent target planes and the RSRP value on the target space area.
The step of obtaining a Reference Signal Received Power (RSRP) value on a measurement region of a target plane in a preset three-dimensional space includes:
and measuring a measurement region of a target plane in a preset three-dimensional space by using an unmanned aerial vehicle to obtain an RSRP value on the measurement region.
Wherein the step of determining the RSRP value over the estimation region of the target plane based on the RSRP value over the measurement region comprises:
acquiring an RSRP value on a first measuring point in a measuring area and an RSRP value on a second measuring point in the measuring area;
determining a point to be estimated in the estimation area according to the first measurement point and the second measurement point; the first measuring point, the second measuring point and the point to be estimated are three points of a right triangle, and the point to be estimated is a right angle point of the right triangle;
determining an RSRP value on the point to be estimated according to the RSRP value on the first measuring point and the RSRP value on the second measuring point;
and determining the RSRP value on the estimation area according to the RSRP values on all the points to be estimated in the estimation area.
Wherein the step of determining the RSRP value at the point to be estimated according to the RSRP value at the first measurement point and the RSRP value at the second measurement point comprises:
and determining that the square of the RSRP value on the point to be estimated is equal to the sum of the square of the RSRP value on the first measuring point and the square of the RSRP value on the second measuring point.
Wherein, the step of determining the RSRP value on the target space region between two adjacent layers of target planes according to the RSRP values on the two adjacent layers of target planes comprises the following steps:
acquiring RSRP values on a first point in a first target plane in two adjacent layers of target planes and RSRP values on a second point in a second target plane in two adjacent layers of target planes; the connecting line of the first point and the second point is respectively vertical to the first target plane and the second target plane; a connecting line of the first point and the second point is positioned in a target space area between the first target plane and the second target plane;
determining an RSRP value on any point on a connecting line of the first point and the second point according to the RSRP value on the first point and the RSRP value on the second point;
and determining the RSRP value on the target space region according to the RSRP values on all the points in the target space region.
Wherein, the step of determining the RSRP value at any point on the connection line of the first point and the second point according to the RSRP value at the first point and the RSRP value at the second point comprises:
determining any point on a connecting line of the first point and the second point as a third point;
acquiring a first distance value between a third point and the first point and a second distance value between the first point and the second point;
determining the RSRP value of any point on a connecting line of the first point and the second point according to a preset RSRP value calculation formula and the first distance value, the second distance value, the RSRP value on the first point and the RSRP value on the second point; the preset RSRP value calculation formula is as follows:
Figure BDA0001163625310000031
wherein, RSRPMIs the RSRP value at any point on the connecting line of the first point and the second point, D1Is a first distance value, D2Is the second distance value, RSRP1Is the value of RSRP at the first point, RSRP2Is the RSRP value at the second point.
The preset three-dimensional space is a man-machine-free navigation area;
the preset three-dimensional space comprises a plurality of layers of target planes, each layer of target planes are mutually planar, and a preset distance value is reserved between adjacent target planes;
the measurement area on the target plane is an area where a preset measurement route of the unmanned aerial vehicle is located;
and the estimation area on the target plane is the residual area on the preset plane except the measurement area.
An embodiment of the present invention further provides a device for determining network coverage, including:
the measuring module is used for acquiring a Reference Signal Received Power (RSRP) value on a measuring region of a target plane in a preset three-dimensional space;
the estimation module is used for determining an RSRP value on an estimation area of the target plane according to the RSRP value on the measurement area;
a plane determination module, configured to determine an RSRP value on the target plane according to the RSRP value on the measurement region and the RSRP value on the estimation region;
and the coverage determining module is used for determining the network coverage of the preset three-dimensional space according to the RSRP value on the target plane.
Wherein the coverage determination module comprises:
the first determining submodule is used for determining the RSRP value on the target space region between the two adjacent layers of target planes according to the RSRP values on the two adjacent layers of target planes;
and the second determining submodule is used for determining the network coverage of the preset three-dimensional space according to the RSRP values on the two adjacent target planes and the RSRP value on the target space area.
Wherein the measurement module comprises:
and the measurement submodule is used for measuring a measurement area of a target plane in a preset three-dimensional space by using an unmanned aerial vehicle to obtain an RSRP value on the measurement area.
Wherein the estimation module comprises:
the first estimation submodule is used for acquiring an RSRP value on a first measurement point in a measurement area and an RSRP value on a second measurement point in the measurement area;
the second estimation submodule is used for determining a point to be estimated in the estimation area according to the first measurement point and the second measurement point; the first measuring point, the second measuring point and the point to be estimated are three points of a right triangle, and the point to be estimated is a right angle point of the right triangle;
the third estimation submodule is used for determining the RSRP value on the point to be estimated according to the RSRP value on the first measurement point and the RSRP value on the second measurement point;
and the fourth estimation submodule is used for determining the RSRP value on the estimation area according to the RSRP values on all the points to be estimated in the estimation area.
Wherein the third estimation sub-module includes:
and the estimation unit is used for determining that the square of the RSRP value on the point to be estimated is equal to the sum of the square of the RSRP value on the first measurement point and the square of the RSRP value on the second measurement point.
Wherein the first determination submodule includes:
the first determining unit is used for acquiring an RSRP value on a first point in a first target plane in two adjacent layers of target planes and an RSRP value on a second point in a second target plane in two adjacent layers of target planes; the connecting line of the first point and the second point is respectively vertical to the first target plane and the second target plane; a connecting line of the first point and the second point is positioned in a target space area between the first target plane and the second target plane;
a second determining unit, configured to determine, according to the RSRP value at the first point and the RSRP value at the second point, an RSRP value at any point on a connection line between the first point and the second point;
a third determining unit, configured to determine, according to RSRP values at all points in the target space region, an RSRP value at the target space region.
Wherein the second determination unit includes:
a first determining subunit, configured to determine that any point on a connection line between the first point and the second point is a third point;
the second determining subunit is used for acquiring a first distance value between the third point and the first point and a second distance value between the first point and the second point;
a third determining subunit, configured to determine, according to the first distance value, the second distance value, the RSRP value at the first point, and the RSRP value at the second point, an RSRP value at any point on a connection line between the first point and the second point according to a preset RSRP value calculation formula; the preset RSRP value calculation formula is as follows:
Figure BDA0001163625310000051
wherein, RSRPMIs the RSRP value at any point on the connecting line of the first point and the second point, D1Is a first distance value, D2Is the second distance value, RSRP1Is the value of RSRP at the first point, RSRP2Is the RSRP value at the second point.
The preset three-dimensional space is a man-machine-free navigation area;
the preset three-dimensional space comprises a plurality of layers of target planes, each layer of target planes are mutually planar, and a preset distance value is reserved between adjacent target planes;
the measurement area on the target plane is an area where a preset measurement route of the unmanned aerial vehicle is located;
and the estimation area on the target plane is the residual area on the preset plane except the measurement area.
The technical scheme of the invention at least has the following beneficial effects:
in the method and the device for determining network coverage, the RSRP value of the area which is not measured is estimated through the RSRP value of the target plane which can be measured, and then the RSRP value in the whole preset three-dimensional space can be determined; furthermore, the coverage condition of the LTE network in the three-dimensional space can be evaluated according to the estimated RSRP value and the measured RSRP value, so that accurate network environment is provided for controlling the unmanned aerial vehicle through the LTE network, basis is provided for controlling the unmanned aerial vehicle through the LTE network, and the control efficiency of the LTE network is improved.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for determining network coverage according to a first embodiment of the present invention;
fig. 2 is a schematic diagram illustrating the division of a three-dimensional space in the method for determining network coverage according to the first embodiment of the present invention;
fig. 3 is a block diagram of a network coverage determination apparatus according to a second embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
First embodiment
As shown in fig. 1, a first embodiment of the present invention provides a method for determining network coverage, including:
step 11, acquiring a Reference Signal Received Power (RSRP) value on a measurement area of a target plane in a preset three-dimensional space;
step 12, determining an RSRP value on an estimation region of the target plane according to the RSRP value on the measurement region;
step 13, determining the RSRP value on the target plane according to the RSRP value on the measurement region and the RSRP value on the estimation region;
and 14, determining the network coverage of the preset three-dimensional space according to the RSRP value on the target plane.
In the above embodiment of the present invention, the predetermined three-dimensional space is a navigation area without human-machine interaction; for example, in a navigation area of an unmanned aerial vehicle in a certain city, the unmanned aerial vehicle can navigate only above a road or a building in the city, and meanwhile, a city is generally provided with certain no-fly areas, and the no-fly areas need to be excluded, so that the navigation area of the unmanned aerial vehicle is determined.
The preset three-dimensional space comprises a plurality of layers of target planes, each layer of target planes are mutually planar, and a preset distance value is reserved between adjacent target planes; for example, with reference to the horizontal plane and 20m as the step diameter, different target planes are defined on the vertical plane, as shown in fig. 2.
Further, the measurement area on the target plane is an area where a preset measurement route of the unmanned aerial vehicle is located; specifically, the target plane is divided into different grids according to the urban road, and then different measuring routes on the target plane are formed. The unmanned aerial vehicle can fly on the preset measurement route, so that the RSRP value on the measurement route is measured, namely the RSRP value on the measurement area is measured.
And the estimation area on the target plane is the residual area on the preset plane except the measurement area. Because the three-dimensional space cannot perform RSRP measurement on each point in the three-dimensional space unlike a ground road, the target plane is divided into a measurement area and an estimation area in the embodiment of the present invention, and the estimation area is an area where RSRP measurement cannot be performed by using the unmanned aerial vehicle.
Further, step 14 in the above embodiment of the present invention includes:
step 141, determining an RSRP value on a target space region between two adjacent target planes according to RSRP values on the two adjacent target planes;
and 142, determining the network coverage of the preset three-dimensional space according to the RSRP values on the two adjacent target planes and the RSRP value on the target space area.
In the above embodiment of the present invention, only the RSRP value on each target plane can be determined through steps 11, 12, and 13, and the determination of the network coverage of the preset three-dimensional space is inaccurate and inaccurate only according to the RSRP value on the target plane determined in step 13, and in order to improve the accuracy of the network coverage of the preset three-dimensional space, the embodiment of the present invention may further estimate the RSRP value on the target space area between two adjacent target planes through step 141, so as to determine the network coverage of the three-dimensional space more comprehensively and more accurately.
Specifically, step 11 in the above embodiment of the present invention includes:
and step 111, measuring a measurement region of a target plane in a preset three-dimensional space by using an unmanned aerial vehicle to obtain an RSRP value on the measurement region.
Carrying out drive test on a measurement area on a target plane according to a preset measurement route by using an unmanned aerial vehicle carrying a drive test terminal, and determining an RSRP value on the measurement area through the drive test; furthermore, routes with poor network coverage can be found according to the RSRP values in the measurement areas of the routes, so that the routes with poor network coverage can be avoided in the subsequent route planning of the unmanned aerial vehicle. The method of measuring the RSRP value in this step is consistent with the prior art and will not be described in detail here.
Specifically, step 12 in the above embodiment of the present invention includes:
step 121, acquiring an RSRP value at a first measurement point in a measurement area and an RSRP value at a second measurement point in the measurement area;
step 122, determining a point to be estimated in the estimation area according to the first measurement point and the second measurement point; the first measuring point, the second measuring point and the point to be estimated are three points of a right triangle, and the point to be estimated is a right angle point of the right triangle; namely, the first measuring point, the second measuring point and the point to be estimated are positioned on the same target plane. If a three-dimensional coordinate axis is established based on the horizontal plane, as shown in fig. 2, the first measurement point is a, the second measurement point is B, and the point to be estimated is C, the X-axis coordinate of the point to be estimated C is the same as the X-axis coordinate of the first measurement point a, the Y-axis coordinate of the point to be estimated C is the same as the Y-axis coordinate of the second measurement point B, and the Z-axis coordinate of the point to be estimated C is the same as the Z-axis coordinate of the first measurement point a and the Z-axis coordinate of the second measurement point B.
Step 123, determining an RSRP value on the point to be estimated according to the RSRP value on the first measurement point and the RSRP value on the second measurement point;
and step 124, determining the RSRP value on the estimation area according to the RSRP values on all the points to be estimated in the estimation area.
Further, step 123 includes: and determining that the square of the RSRP value on the point to be estimated is equal to the sum of the square of the RSRP value on the first measuring point and the square of the RSRP value on the second measuring point.
Specifically, when A, B, C points are on the same target plane, the position and RSRP value of A, B points are known; then the position of point C and the RSRP value at point C can be calculated; suppose A { Xa，Ya，Za，RSRPa}；B{Xb，Yb，Zb，RSRPb}；C{Xc，Yc，Zc，RSRPc}; then RSRPc*RSRPc＝(RSRPa*RSRPa+RSRPb*RSRPb) (ii) a Wherein, Xc＝Xa,Yc＝Yb,Zc＝Za＝Zb。
Further, the above embodiments of the present invention
Specifically, in the above embodiment of the present invention, step 141 includes:
step 1411, acquiring an RSRP value at a first point in a first target plane of two adjacent layers of target planes and an RSRP value at a second point in a second target plane of the two adjacent layers of target planes; the connecting line of the first point and the second point is respectively vertical to the first target plane and the second target plane; a connecting line of the first point and the second point is positioned in a target space area between the first target plane and the second target plane; if a three-dimensional coordinate axis is established based on a horizontal plane, as shown in fig. 2, assuming that a first point is C and a second point is C ', an X-axis coordinate of the second point C ' is the same as an X-axis coordinate of the first point C, a Y-axis coordinate of the second point C ' is the same as a Y-axis coordinate of the first point C, a Z-axis coordinate of the second point C ' is different from a Z-axis coordinate of the first point C, and in fig. 2, the Z-axis coordinate of the second point C ' is equal to the Z-axis coordinate of the first point C minus a vertical distance between adjacent planes.
Step 1412, determining an RSRP value at any point on a connecting line of the first point and the second point according to the RSRP value at the first point and the RSRP value at the second point;
step 1413, determining RSRP values on the target space region according to RSRP values on all points in the target space region.
And step 1412 includes:
determining any point on a connecting line of the first point and the second point as a third point; acquiring a first distance value between a third point and the first point and a second distance value between the first point and the second point; determining the RSRP value of any point on a connecting line of the first point and the second point according to a preset RSRP value calculation formula and the first distance value, the second distance value, the RSRP value on the first point and the RSRP value on the second point; the preset RSRP value calculation formula is as follows:
Figure BDA0001163625310000091
wherein, RSRPMIs the RSRP value at any point on the connecting line of the first point and the second point, D1Is a first distance value, D2Is the second distance value, RSRP1Is the value of RSRP at the first point, RSRP2Is the RSRP value at the second point.
As shown in fig. 2, assuming that the first point is C, the second point is C', and the third point is D, the RSRP value at the D point is related to the distance from the D point to the C point (or the distance from the C point). For example, the RSRP value at the first point C is equal to 75dBm, the RSRP value at the second point C' is 100dBm, the first point is 25m from the second point C, the distance between the D point and the C point is 5m, and the distance between the D point and the C point is 20 m. Into the formula, wherein D1＝5，D2＝25，RSRP1＝75，RSRP2When the value is 100, then
Figure BDA0001163625310000092
I.e. the RSRP value of the third point D is 80 dBm.
In summary, the RSRP value in the preset three-dimensional space can be determined by the method for measuring and estimating the RSRP value provided by the first embodiment of the present invention, and then, according to a certain RSRP threshold, an area with insufficient coverage of the mobile network space used by the unmanned aerial vehicle can be found. After determining the area of insufficient coverage, a variety of applications may follow, including but not limited to: the basis can be provided for the selection of the subsequent unmanned aerial vehicle route; and also can provide basis for the optimization of the three-dimensional space network, which is not listed here.
In the method for determining network coverage provided by the first embodiment of the present invention, an RSRP value on an unmeasured area is estimated by an RSRP value on a measurable target plane, and then an RSRP value in the whole preset three-dimensional space can be determined; furthermore, the coverage condition of the LTE network in the three-dimensional space can be evaluated according to the estimated RSRP value and the measured RSRP value, so that accurate network environment is provided for controlling the unmanned aerial vehicle through the LTE network, basis is provided for controlling the unmanned aerial vehicle through the LTE network, and the control efficiency of the LTE network is improved.
Second embodiment
As shown in fig. 3, a second embodiment of the present invention provides a network coverage determining apparatus, including:
the measurement module 31 is configured to obtain a reference signal received power RSRP value on a measurement region of a target plane in a preset three-dimensional space;
an estimation module 32, configured to determine, according to the RSRP value on the measurement region, an RSRP value on an estimation region of the target plane;
a plane determining module 33, configured to determine an RSRP value on the target plane according to the RSRP value on the measurement region and the RSRP value on the estimation region;
a coverage determining module 34, configured to determine network coverage of the preset three-dimensional space according to the RSRP value on the target plane.
Specifically, the coverage determining module in the second embodiment of the present invention includes:
the first determining submodule is used for determining the RSRP value on the target space region between the two adjacent layers of target planes according to the RSRP values on the two adjacent layers of target planes;
and the second determining submodule is used for determining the network coverage of the preset three-dimensional space according to the RSRP values on the two adjacent target planes and the RSRP value on the target space area.
Specifically, the measurement module in the second embodiment of the present invention includes:
and the measurement submodule is used for measuring a measurement area of a target plane in a preset three-dimensional space by using an unmanned aerial vehicle to obtain an RSRP value on the measurement area.
Specifically, the estimation module in the second embodiment of the present invention includes:
the first estimation submodule is used for acquiring an RSRP value on a first measurement point in a measurement area and an RSRP value on a second measurement point in the measurement area;
the second estimation submodule is used for determining a point to be estimated in the estimation area according to the first measurement point and the second measurement point; the first measuring point, the second measuring point and the point to be estimated are three points of a right triangle, and the point to be estimated is a right angle point of the right triangle;
the third estimation submodule is used for determining the RSRP value on the point to be estimated according to the RSRP value on the first measurement point and the RSRP value on the second measurement point;
and the fourth estimation submodule is used for determining the RSRP value on the estimation area according to the RSRP values on all the points to be estimated in the estimation area.
Specifically, in the second embodiment of the present invention, the third estimation sub-module includes:
and the estimation unit is used for determining that the square of the RSRP value on the point to be estimated is equal to the sum of the square of the RSRP value on the first measurement point and the square of the RSRP value on the second measurement point.
Specifically, in the second embodiment of the present invention, the first determining sub-module includes:
the first determining unit is used for acquiring an RSRP value on a first point in a first target plane in two adjacent layers of target planes and an RSRP value on a second point in a second target plane in two adjacent layers of target planes; the connecting line of the first point and the second point is respectively vertical to the first target plane and the second target plane; a connecting line of the first point and the second point is positioned in a target space area between the first target plane and the second target plane;
a second determining unit, configured to determine, according to the RSRP value at the first point and the RSRP value at the second point, an RSRP value at any point on a connection line between the first point and the second point;
a third determining unit, configured to determine, according to RSRP values at all points in the target space region, an RSRP value at the target space region.
Specifically, in the second embodiment of the present invention, the second determining unit includes:
a first determining subunit, configured to determine that any point on a connection line between the first point and the second point is a third point;
the second determining subunit is used for acquiring a first distance value between the third point and the first point and a second distance value between the first point and the second point;
a third determining subunit, configured to determine, according to the first distance value, the second distance value, the RSRP value at the first point, and the RSRP value at the second point, an RSRP value at any point on a connection line between the first point and the second point according to a preset RSRP value calculation formula; the preset RSRP value calculation formula is as follows:
Figure BDA0001163625310000111
wherein, RSRPMIs the RSRP value at any point on the connecting line of the first point and the second point, D1Is a first distance value, D2Is the second distance value, RSRP1Is the value of RSRP at the first point, RSRP2Is the RSRP value at the second point.
Specifically, in the second embodiment of the present invention, the predetermined three-dimensional space is a navigation area without human-machine;
the preset three-dimensional space comprises a plurality of layers of target planes, each layer of target planes are mutually planar, and a preset distance value is reserved between adjacent target planes;
the measurement area on the target plane is an area where a preset measurement route of the unmanned aerial vehicle is located;
and the estimation area on the target plane is the residual area on the preset plane except the measurement area.
It should be noted that, the network coverage determining apparatus provided in the second embodiment of the present invention is a determining apparatus capable of executing the network coverage determining method, and all embodiments of the network coverage determining method are applicable to the network coverage determining apparatus, and can achieve the same or similar beneficial effects.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (14)

1. A method for determining network coverage, comprising:
acquiring a Reference Signal Received Power (RSRP) value on a measurement area of a target plane in a preset three-dimensional space;
determining an RSRP value over an estimation region of the target plane from the RSRP value over the measurement region, comprising: acquiring an RSRP value on a first measuring point in a measuring area and an RSRP value on a second measuring point in the measuring area; determining a point to be estimated in the estimation area according to the first measurement point and the second measurement point; the first measuring point, the second measuring point and the point to be estimated are three points of a right triangle, and the point to be estimated is a right angle point of the right triangle; determining an RSRP value on the point to be estimated according to the RSRP value on the first measuring point and the RSRP value on the second measuring point; determining the RSRP value on the estimation area according to the RSRP values on all the points to be estimated in the estimation area;
determining an RSRP value on the target plane according to the RSRP value on the measurement region and the RSRP value on the estimation region;
and determining the network coverage of the preset three-dimensional space according to the RSRP value on the target plane.
2. The method of claim 1, wherein the step of determining the network coverage strength of the predetermined three-dimensional space according to the RSRP value on the target plane comprises:
determining an RSRP value on a target space region between two adjacent layers of target planes according to the RSRP values on the two adjacent layers of target planes;
and determining the network coverage of the preset three-dimensional space according to the RSRP values on the two adjacent target planes and the RSRP value on the target space area.
3. The method of claim 1, wherein the step of obtaining the Reference Signal Received Power (RSRP) value over the measurement area of a target plane in the predetermined three-dimensional space comprises:
and measuring a measurement region of a target plane in a preset three-dimensional space by using an unmanned aerial vehicle to obtain an RSRP value on the measurement region.
4. The method of claim 1, wherein the step of determining the RSRP value at the point to be evaluated from the RSRP value at the first measurement point and the RSRP value at the second measurement point comprises:
and determining that the square of the RSRP value on the point to be estimated is equal to the sum of the square of the RSRP value on the first measuring point and the square of the RSRP value on the second measuring point.
5. The method of claim 2, wherein the step of determining the RSRP value over the target space region between two adjacent layers of target planes from the RSRP values over the two adjacent layers of target planes comprises:
acquiring RSRP values on a first point in a first target plane in two adjacent layers of target planes and RSRP values on a second point in a second target plane in two adjacent layers of target planes; the connecting line of the first point and the second point is respectively vertical to the first target plane and the second target plane; a connecting line of the first point and the second point is positioned in a target space area between the first target plane and the second target plane;
determining an RSRP value on any point on a connecting line of the first point and the second point according to the RSRP value on the first point and the RSRP value on the second point;
and determining the RSRP value on the target space region according to the RSRP values on all the points in the target space region.
6. The method of claim 5, wherein the step of determining the RSRP value at any point on the line connecting the first point and the second point according to the RSRP value at the first point and the RSRP value at the second point comprises:
determining any point on a connecting line of the first point and the second point as a third point;
acquiring a first distance value between a third point and the first point and a second distance value between the first point and the second point;
determining the RSRP value of any point on a connecting line of the first point and the second point according to a preset RSRP value calculation formula and the first distance value, the second distance value, the RSRP value on the first point and the RSRP value on the second point; the preset RSRP value calculation formula is as follows:
Figure FDA0002566725480000021
wherein, RSRPMIs the RSRP value at any point on the connecting line of the first point and the second point, D1Is a first distance value, D2Is the second distance value, RSRP1Is the value of RSRP at the first point, RSRP2Is the RSRP value at the second point.
7. The method of claim 1, wherein the predetermined three-dimensional space is an unmanned navigational area;
the preset three-dimensional space comprises a plurality of layers of target planes, each layer of target planes are mutually planar, and a preset distance value is reserved between adjacent target planes;
the measurement area on the target plane is an area where a preset measurement route of the unmanned aerial vehicle is located;
and the estimation area on the target plane is the residual area on the preset plane except the measurement area.
8. An apparatus for determining network coverage, comprising:
the measuring module is used for acquiring a Reference Signal Received Power (RSRP) value on a measuring region of a target plane in a preset three-dimensional space;
the estimation module is used for determining an RSRP value on an estimation area of the target plane according to the RSRP value on the measurement area;
a plane determination module, configured to determine an RSRP value on the target plane according to the RSRP value on the measurement region and the RSRP value on the estimation region;
the coverage determining module is used for determining the network coverage of the preset three-dimensional space according to the RSRP value on the target plane;
the estimation module comprises:
the first estimation submodule is used for acquiring an RSRP value on a first measurement point in a measurement area and an RSRP value on a second measurement point in the measurement area;
the second estimation submodule is used for determining a point to be estimated in the estimation area according to the first measurement point and the second measurement point; the first measuring point, the second measuring point and the point to be estimated are three points of a right triangle, and the point to be estimated is a right angle point of the right triangle;
the third estimation submodule is used for determining the RSRP value on the point to be estimated according to the RSRP value on the first measurement point and the RSRP value on the second measurement point;
and the fourth estimation submodule is used for determining the RSRP value on the estimation area according to the RSRP values on all the points to be estimated in the estimation area.
9. The apparatus of claim 8, wherein the coverage determination module comprises:
the first determining submodule is used for determining the RSRP value on the target space region between the two adjacent layers of target planes according to the RSRP values on the two adjacent layers of target planes;
and the second determining submodule is used for determining the network coverage of the preset three-dimensional space according to the RSRP values on the two adjacent target planes and the RSRP value on the target space area.
10. The apparatus of claim 8, wherein the measurement module comprises:
and the measurement submodule is used for measuring a measurement area of a target plane in a preset three-dimensional space by using an unmanned aerial vehicle to obtain an RSRP value on the measurement area.
11. The apparatus of claim 8, wherein the third estimation sub-module comprises:
and the estimation unit is used for determining that the square of the RSRP value on the point to be estimated is equal to the sum of the square of the RSRP value on the first measurement point and the square of the RSRP value on the second measurement point.
12. The apparatus of claim 9, wherein the first determination submodule comprises:
the first determining unit is used for acquiring an RSRP value on a first point in a first target plane in two adjacent layers of target planes and an RSRP value on a second point in a second target plane in two adjacent layers of target planes; the connecting line of the first point and the second point is respectively vertical to the first target plane and the second target plane; a connecting line of the first point and the second point is positioned in a target space area between the first target plane and the second target plane;
a second determining unit, configured to determine, according to the RSRP value at the first point and the RSRP value at the second point, an RSRP value at any point on a connection line between the first point and the second point;
a third determining unit, configured to determine, according to RSRP values at all points in the target space region, an RSRP value at the target space region.
13. The apparatus of claim 12, wherein the second determining unit comprises:
a first determining subunit, configured to determine that any point on a connection line between the first point and the second point is a third point;
the second determining subunit is used for acquiring a first distance value between the third point and the first point and a second distance value between the first point and the second point;
a third determining subunit, configured to determine, according to the first distance value, the second distance value, the RSRP value at the first point, and the RSRP value at the second point, an RSRP value at any point on a connection line between the first point and the second point according to a preset RSRP value calculation formula; the preset RSRP value calculation formula is as follows:
Figure FDA0002566725480000041
wherein, RSRPMIs the RSRP value at any point on the connecting line of the first point and the second point, D1Is a first distance value, D2Is the second distance value, RSRP1Is the value of RSRP at the first point, RSRP2Is the RSRP value at the second point.
14. The apparatus of claim 8, wherein the predetermined three-dimensional space is an unmanned navigational area;
the preset three-dimensional space comprises a plurality of layers of target planes, each layer of target planes are mutually planar, and a preset distance value is reserved between adjacent target planes;
the measurement area on the target plane is an area where a preset measurement route of the unmanned aerial vehicle is located;
and the estimation area on the target plane is the residual area on the preset plane except the measurement area.
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