CN112492636B - Method and device for determining propagation loss - Google Patents
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- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method and a device for determining propagation loss, which relate to the technical field of communication and are used for determining the propagation loss of a 5G network signal when penetrating a building, and comprise the following steps: acquiring a wireless environment type to which a target area belongs and a building type of a building in the target area; inquiring the penetration loss and the stepping loss in the target area from the mapping relation comprising the wireless environment type, the building type and the propagation loss according to the wireless environment type to which the target area belongs and the building type of the building in the target area. The embodiment of the invention is applied to the determination of the propagation loss of the 5G network signal.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for determining propagation loss.
Background
Currently, the fifth generation mobile communication technology (5th generation mobile networks,5G) network is planned and constructed on a large scale, and uses a main 3.5GHz band, which is a high-frequency band that is just used for mobile communication. The air interface loss of the frequency band characteristic is more serious than that of the existing frequency band, and the loss is larger when penetrating through a building.
In this case, there is not much accumulation of wave characteristics and penetration, and the existing loss test method cannot determine propagation loss when the 5G network signal penetrates the building.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining propagation loss, which are used for determining the propagation loss of a 5G network signal when penetrating a building.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
in a first aspect, a method for determining propagation loss is provided, the method comprising: acquiring a wireless environment type to which a target area belongs and a building type of a building in the target area; inquiring the penetration loss and the stepping loss in the target area from the mapping relation comprising the wireless environment type, the building type and the propagation loss according to the wireless environment type to which the target area belongs and the building type of the building in the target area.
In a second aspect, a determination apparatus of propagation loss is provided, the determination apparatus including an acquisition unit and a query unit; the acquisition unit is used for acquiring the type of the wireless environment to which the target area belongs and the building type of the building in the target area; the inquiring unit is used for inquiring the penetration loss and the stepping loss in the target area from the mapping relation comprising the wireless environment type, the building type and the propagation loss according to the wireless environment type of the target area and the building type of the building in the target area, which are acquired by the acquiring unit.
In a third aspect, there is provided a computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform a method of determining propagation loss as in the first aspect.
In a fourth aspect, a propagation loss determining apparatus includes: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs comprising computer-executable instructions that, when executed by the determining device, cause the determining device to perform the method of determining propagation loss as in the first aspect.
In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of determining propagation loss of the first aspect.
The embodiment of the invention provides a method and a device for determining propagation loss, which are applied to determining the propagation loss of a 5G network signal when penetrating through a building.
Drawings
Fig. 1 is a schematic structural diagram of a propagation loss evaluation system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for determining propagation loss according to an embodiment of the present invention;
fig. 3 is a schematic flow chart II of a method for determining propagation loss according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a test line bit according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for determining propagation loss according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for determining propagation loss according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a determining device for propagation loss according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a determining device for propagation loss according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a determining device for propagation loss according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, "/" means "or" unless otherwise indicated, for example, A/B may mean A or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Further, "at least one", "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.
The method for determining the propagation loss provided by the embodiment of the invention can be applied to a propagation loss evaluation system of an operator communication network. Fig. 1 shows a schematic configuration of the propagation loss evaluation system. As shown in fig. 1, the propagation loss evaluation system 10 includes a determination means 11 of propagation loss (simply referred to as determination means in the following description of the embodiment of the present invention for convenience of description) and an evaluation device 12. The determining means 11 are connected to an evaluation device 12. The propagation loss determining device 11 and the evaluation device 12 may be connected in a wired manner or may be connected in a wireless manner, which is not limited in the embodiment of the present invention.
The propagation loss determining means 11 may be used for data interaction with the evaluation device 12, for example, the propagation loss determining means 11 may obtain geographical locations of a plurality of areas, building density, vehicle density, etc. from the evaluation device 12, and send the penetration loss used by each area and the step loss to the evaluation device 12.
The evaluation device 12 may be configured to obtain performance values of performance indicators of respective network devices in the 5G core network and information such as geographic locations, building densities, and vehicle densities of multiple areas.
The propagation loss determining device 11 and the estimating device 12 may be independent devices or may be integrated in the same device, which is not particularly limited in the present invention.
When the propagation loss determining means 11 and the evaluation device 12 are integrated in the same device, the communication between the propagation loss determining means 11 and the evaluation device 12 is in the form of communication between the internal modules of the device. In this case, the communication flow therebetween is the same as "in the case where the determination means 11 of propagation loss and the evaluation device 12 are independent of each other".
In the following embodiments provided by the present invention, the present invention is described taking an example in which the determination means 11 of propagation loss and the evaluation device 12 are provided independently of each other.
The method for determining propagation loss provided by the embodiment of the invention is described below with reference to the accompanying drawings.
As shown in fig. 2, the method for determining propagation loss provided by the embodiment of the present invention includes S201-S202:
s201, the determining device obtains the type of the wireless environment to which the target area belongs and the building type of the building in the target area.
As a possible implementation, the determining means obtains from the evaluation device the average height of the building in the target area, the traffic flow in the target area, and the building material and the building structure of the building in the target area.
It should be noted that the target area may be a coverage area of a 5G base station or a 5G cell.
Further, the determining device determines the type of the wireless environment to which the target area belongs according to the average height of the building in the target area and the traffic flow in the target area.
The following illustrates an example of how the determining device determines the type of wireless environment to which the target area belongs in the embodiment of the present invention.
The wireless environment type may specifically include a core urban area, an urban area, a suburban area, and a rural area.
Specifically, when the average height of the building in the target area is greater than the first threshold value and the traffic flow in the target area is greater than the second threshold value, the wireless environment type to which the target area belongs is the core urban area.
The first threshold value and the second threshold value may be set in advance in the determination device by an operator of the propagation loss evaluation system.
Illustratively, the first threshold may be 20 meters (m).
It can be appreciated that in the case where the average height of the building is greater than the first threshold, the electromagnetic propagation tunneling effect is significant and the long-path delay is significant. In the case where the traffic is greater than the second threshold, the reflection caused by dense traffic is more severely biased, and electromagnetic signals are difficult to diffract from the roof of the building.
And when the average height of the building in the target area is smaller than or equal to the first threshold value and larger than the third threshold value, and the traffic flow in the target area is smaller than or equal to the second threshold value and larger than the fourth threshold value, the wireless environment type to which the target area belongs is an urban area.
The third threshold value and the fourth threshold value may be set in advance by the operation and maintenance personnel in the determination device.
The third threshold may be, for example, 10 meters (m).
It will be appreciated that in the case where the average height of the building is less than or equal to the first threshold value and greater than the third threshold value, the building height is generally lower than the height at which diffraction of electromagnetic waves is caused. In the case where the vehicle flow rate is less than or equal to the second threshold value and greater than the fourth threshold value, reflection of electromagnetic waves by the mobile environment and the frequency offset effect are relatively common.
And when the average height of the building in the target area is smaller than or equal to the third threshold value and larger than the fifth threshold value, and the traffic flow in the target area is smaller than or equal to the fourth threshold value and larger than the sixth threshold value, the wireless environment type to which the target area belongs is suburban.
The fifth threshold value and the sixth threshold value may be set in advance by the operation and maintenance personnel in the determination device.
Illustratively, the fifth threshold may be 5 meters (m).
In the case where the average height of the building in the target area is less than or equal to the fifth threshold value and the traffic flow in the target area is less than or equal to the sixth threshold value, the wireless environment type to which the target area belongs is rural.
The fifth threshold value and the sixth threshold value may be set in advance by the operation and maintenance personnel in the determination device.
Further, the determining device determines the building type to which the building in the target area belongs according to the building materials and the building structure of the building in the target area.
An exemplary method of determining how a device determines the type of building to which a building belongs in an embodiment of the present invention is shown below.
The building types comprise a low-loss building type, a medium-loss building type and a high-loss building type.
Specifically, in a short building with a main body of building materials such as glass, simple materials or thin layer brick and concrete, the building structure is relatively simple, and the building type of the building is determined to be a low-loss building type.
For example, low-loss building types are mostly wide-type meeting places such as urban villages, simple houses, greening facilities, floor window cells, football stadiums and the like.
In the middle-layer building group with the building materials of the building being thin-layer concrete, brick-concrete and the like as main bodies, the inner structure of the building is relatively complex, and the building type of the building is determined to be the middle-loss building type.
For example, the middle-loss building types are mostly scenes of schools, hotels, commercial buildings, small shops beside streets, stadiums and the like.
And when the building material of the building is thick-layer concrete and the brick-concrete is used as a main body of the high-rise building, and the inner structure and the partition of the building are complex, the building is determined to be a high-loss building type.
By way of example, high-loss building types are mostly scenes such as high-grade shops, hotels, university teaching buildings, libraries and the like.
S202, the determining device inquires the penetration loss and the stepping loss in the target area from the mapping relation comprising the wireless environment type, the building type and the propagation loss according to the wireless environment type and the building type of the building in the target area.
As one possible implementation manner, the determining device queries the penetration loss and the step loss applicable to the target area from the mapping relation according to the type of the wireless environment to which the target area belongs and the type of the building in the target area.
The penetration loss is loss caused by the fact that electromagnetic waves penetrate through a building wall for the first time, and the unit is dB. The step loss is loss caused by 1m of electromagnetic waves after entering the wall of the building, and the unit is dB/m.
Illustratively, the following table shows a specific example of a mapping relationship including the penetration loss.
List one
| Radio environment type | Low loss building type | Middle loss building type | High loss building type |
| Core urban area | Dp | Dp | Dp |
| Urban area | Dp | Dp | Dp |
| Suburban area | Dp | Dp | Dp |
| Rural area | Dp | Dp | Dp |
Wherein Dp is the penetration loss corresponding to different building types under different wireless environment types.
Illustratively, table two below sets forth a specific example of a mapping relationship that includes step loss.
Watch II
Wherein Dq is the stepping loss corresponding to different building types under different wireless environment types.
In one design, in order to establish a preset mapping relationship, as shown in fig. 3, the method for determining transmission loss according to the embodiment of the present invention further includes the following steps S301 to S304.
S301, the determining device utilizes preset simulation software to construct a signal transmitter and a plurality of test line positions penetrating through a plurality of buildings in a preset area.
The plurality of buildings belong to the same building type, the plurality of test line positions comprise a plurality of test point positions, and the direction angles of the plurality of test line positions belong to the angle range of the signal transmitted by the signal transmitter.
It should be noted that the preset area may be a coverage area of any one of the 5G base stations or the 5G cells, where the number of multiple buildings of the same building type in the coverage area is greater than the seventh threshold.
The seventh threshold value may be set in the determination means in advance by the operation and maintenance person. Illustratively, the seventh threshold may be 100.
As a possible implementation, the determining means uses a predetermined simulation software to set the signal transmitter at or near a predetermined area.
The position of the signal transmitter can be set in advance by the operator in the determination device.
The signal transmitter may be a sine wave (CW) transmitter, and the frequency point of the signal transmitter is a 5G frequency point and the frequency is 10KHz.
Further, the determining means determines an angular range of the signal transmitted by the transmitter after the signal transmitter is set in the simulation software, and determines a plurality of test line positions penetrating through a plurality of buildings using the angular range.
It should be noted that, the test line bit is used for receiving the level value of the electromagnetic wave penetrating through the building, one building corresponds to one or more test line bits, and among a plurality of test points included in one test line bit, in the direction of the electromagnetic wave emitted by the signal emitter, the first test point is located outside the wall of the building, and the subsequent other points are located inside the wall of the building.
Fig. 4 shows a schematic diagram of a test line site, as shown in fig. 4, in a building where there are a plurality of test line sites penetrating the wall of the building, each test line site comprising test sites distributed outside the building as well as inside the building.
In one case, the distance between two adjacent test line bits is the same, and the distance between every two adjacent points in the same test line bit is the same.
For example, the distance between every two adjacent dots may be 3m.
For a specific implementation of this step, reference may be made to the following description of the embodiments of the present invention, which is not described herein in detail.
S302, the determining device obtains level values of a plurality of test point position receiving signal transmitters.
As a possible implementation manner, the determining device obtains, in simulation software, level values of electromagnetic waves transmitted by the signal transmitters received by the plurality of test points.
It should be noted that the received level value may be a level value received by the plurality of test points at any time, or may be an average value of level values received by the plurality of test points within a preset period of time.
The preset time period may be set in advance in the determination means by the operation and maintenance personnel.
The preset duration may be, for example, 3 minutes.
Illustratively, table III shows simulation test results output by a simulation software.
Watch III
The test ID is the identification of the simulation test, the transmitting point ID is the identification of the signal transmitter in the simulation test, the building ID is the identification of a plurality of buildings in a preset area, the building type is the building type of the plurality of buildings in the preset area, the test line bit ID is the identification of a plurality of test line bits in the preset area, the test point bit ID is the identification of the test point bit included in each test line bit, and the receiving level is the level value received by each test point bit.
S303, the determining device determines the wireless environment type to which the preset area belongs and the building types to which the plurality of buildings belong.
For a specific implementation of this step, reference may be made to the specific description in S201 in the embodiment of the present invention, and no detailed description will be given here. The difference is that the determination objects in S201 and S303 are different.
S304, the determining device generates a mapping relation according to the level values of the plurality of test point location receiving signal transmitters, the type of the wireless environment to which the preset area belongs and the type of the building to which the plurality of buildings belong.
As one possible implementation manner, the determining device determines, according to the level values of the plurality of test point location receiving signal transmitters, a wireless environment type to which the preset area belongs and penetration loss and stepping loss corresponding to a building type to which the plurality of buildings belong.
For a specific implementation manner of this step, reference may be made to the following description of an embodiment of the present invention, which is not described herein.
In one design, in order to construct a plurality of test line bits, as shown in fig. 5, S301 provided by the embodiment of the present invention may specifically include the following S3011-S3013.
S3011, the determining device obtains engineering parameters of any 5G base station in the preset area.
The engineering parameters comprise the position of the 5G base station, the antenna transmitting power and the antenna direction angle.
As a possible implementation manner, the determining means may obtain the position, the antenna transmitting power, and the antenna direction angle of any one of the 5G base stations from the evaluating device.
The location of the 5G base station includes the longitude and latitude where the 5G base station is located.
S3012, the determining device constructs a signal transmitter in a preset area according to the position of the 5G base station, the antenna transmitting power and the antenna direction angle.
For a specific implementation of this step, reference may be made to the prior art, and no further description is given here.
S3013, determining the plurality of test line positions according to the antenna direction angle by the determining device.
Each test line position comprises a first test point position and a plurality of second test point positions, wherein the first test point position is a test point position outside a building before the test line position penetrates the building, and the plurality of second test point positions comprise test point positions in the building after the test line position penetrates the building.
As a possible implementation, the determining means determines the direction angle of a plurality of test line locations penetrating through the building after determining the antenna direction angle, and determines the plurality of test line locations penetrating through the plurality of building according to the direction angle of the plurality of test line locations.
It should be noted that, the plurality of test line positions penetrating the same building may be parallel test line positions or non-parallel test line positions, which is not limited in the embodiment of the present invention.
As shown in fig. 4, in an exemplary embodiment, on any one test line, the test point before penetrating the wall of the building for the first time is a first test point, the test point after penetrating the wall of the building for the first time is a plurality of second test points, and the test point in the building is a third test point.
In one design, as shown in fig. 6, S304 provided in the embodiment of the present invention may specifically include the following S3041-S3043.
S3041, for the wireless environment type to which the preset area belongs and the building types to which the plurality of buildings belong, the determining device determines the penetration loss corresponding to the wireless environment type to which the preset area belongs and the building types to which the plurality of buildings belong according to the level value received by the first test point position and the level value received by the third test point position in the plurality of test line positions.
The third test point is the first point after the test line penetrates through the building for the first time in the plurality of second test points.
As one possible implementation manner, the determining device determines a wireless environment type to which a preset area belongs and a penetration loss corresponding to a building type to which a plurality of buildings belong according to a level value received by a first test point position, a level value received by a third test point position in the plurality of test line positions and a preset formula.
The wireless environment type of the preset area attribution and the penetration loss corresponding to the building types of the plurality of building attributions meet the following formula I:
wherein D is p Radio environment type belonging to preset area and multiple building attributionsPenetration loss corresponding to the building type, d i0 For the first test point in the ith test line bit of the plurality of test line bits, d i1 And a third test point of the ith test line bit in the plurality of test line bits, wherein n is the number of the plurality of test line bits.
S3042, for the wireless environment type to which the preset area belongs and the building types to which the plurality of buildings belong, the determining device determines the wireless environment type to which the preset area belongs and the stepping loss corresponding to the building types to which the plurality of buildings belong according to the level values received by the plurality of second test points.
As one possible implementation manner, the determining device determines, according to the level values received by the plurality of second test points and a preset formula, a wireless environment type to which the preset area belongs and a stepping loss corresponding to a building type to which the plurality of buildings belong.
The wireless environment type of the attribution of the preset area and the stepping loss corresponding to the building types of the attribution of a plurality of buildings meet the following formula:
wherein D is Q For the wireless environment type of preset area attribution and the stepping loss corresponding to the building type of a plurality of building attributions, n is the number of a plurality of test line positions, m is the number of a plurality of second test point positions included in the plurality of test line positions, d i(j+1) For the j+1th second test point position in the ith test line bit in the plurality of test line bits, d ij A j second test point in an i-th test line bit of the plurality of test line bits.
S3043, the determining device generates a mapping relation according to the wireless environment type of the preset area attribution, the building types of the plurality of building attributions, the penetration loss corresponding to the wireless environment type of the preset area attribution and the building types of the plurality of building attributions, the wireless environment type of the preset area attribution and the stepping loss corresponding to the building types of the plurality of building attributions.
As one possible implementation manner, the determining device generates a mapping relationship including the wireless environment type, the building type and the propagation loss by using the wireless environment type to which the preset area belongs and the building types to which the plurality of buildings belong, and the penetration loss and the step loss corresponding to the wireless environment type and the building types to which the plurality of buildings belong.
The propagation loss includes the above-described penetration loss and step loss.
The embodiment of the invention provides a method and a device for determining propagation loss, which are applied to determining the propagation loss of a 5G network signal when penetrating through a building.
The foregoing description of the solution provided by the embodiments of the present invention has been mainly presented in terms of a method. To achieve the above functions, it includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The embodiment of the invention can divide the functional modules of the propagation loss determining device according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiment of the present invention is schematic, which is merely a logic function division, and other division manners may be implemented in practice.
Fig. 7 is a schematic structural diagram of a propagation loss determining device according to an embodiment of the present invention. As shown in fig. 7, the propagation loss determining device 11 is used for determining the propagation loss when the 5G network signal penetrates through a building, for example, for performing the propagation loss determining method shown in fig. 2. The propagation loss determining device 11 includes an acquisition unit 111 and a query unit 112.
An obtaining unit 111, configured to obtain a wireless environment type to which the target area belongs, and a building type of a building in the target area. For example, in connection with fig. 2, the acquisition unit 111 may be used to perform S201.
And a query unit 112 configured to query the penetration loss and the step loss in the target area from the mapping relationship including the wireless environment type, the building type, and the propagation loss according to the wireless environment type to which the target area belongs and the building type of the building in the target area acquired by the acquisition unit 111. For example, in connection with fig. 2, the querying element 112 may be configured to perform S202.
Optionally, as shown in fig. 7, the determining apparatus provided in the embodiment of the present invention further includes a construction unit 113 and a generation unit 114.
The construction unit 113 is configured to construct, by using preset simulation software, a signal transmitter and a plurality of test line locations penetrating through a plurality of buildings, where the plurality of buildings are assigned to a same building type, the plurality of test line locations include a plurality of test points, and a direction angle of the plurality of test line locations is assigned to an angle range in which the signal transmitter transmits a signal. For example, in connection with fig. 3, the construction unit 113 may be used to perform S301.
The acquiring unit 111 is further configured to acquire level values of the plurality of test point location receiving signal transmitters, and determine a type of wireless environment to which the preset area belongs and a type of building to which the plurality of buildings belong. For example, in connection with fig. 3, the acquisition unit 111 may be used to perform S302 and S303.
The generating unit 114 is configured to generate a mapping relationship according to the level values of the plurality of test point location receiving signal transmitters, the wireless environment type to which the preset area belongs, and the building type to which the plurality of buildings belong. For example, in connection with fig. 3, the generation unit 114 may be used to perform S304.
Optionally, as shown in fig. 7, the construction unit 113 provided in the embodiment of the present invention is specifically configured to:
Engineering parameters of any 5G base station in a preset area are obtained, wherein the engineering parameters comprise the position of the 5G base station, the antenna transmitting power and the antenna direction angle. For example, in connection with fig. 5, the construction unit 113 may be used to perform S3011.
And constructing a signal transmitter in a preset area according to the position of the 5G base station, the antenna transmitting power and the antenna direction angle. For example, in connection with fig. 5, the construction unit 113 may be used to perform S3012.
According to the antenna direction angle, a plurality of test line positions are determined, each test line position comprises a first test point position and a plurality of second test point positions, the first test point position is a test point position outside a building before the test line position penetrates the building, and the plurality of second test point positions comprise test point positions in the building after the test line position penetrates the building. For example, in connection with fig. 5, the construction unit 113 may be used to perform S3013.
Optionally, as shown in fig. 7, the generating unit 114 provided in the embodiment of the present invention is specifically configured to:
and for the wireless environment type of the preset area and the building types of the plurality of building attributions, determining the wireless environment type of the preset area and the penetration loss corresponding to the building types of the plurality of building attributions according to the level value received by the first test point position and the level value received by the third test point position in the plurality of test line positions. The third test point is the first point after the test line first penetrates through the building in the plurality of second test points. For example, in connection with fig. 6, the generation unit 114 may be used to perform S3041.
And determining the wireless environment type of the preset area attribution and the stepping loss corresponding to the building types of the building attribution according to the level values received by the second test points for the wireless environment type of the preset area attribution and the building types of the building attribution. For example, in connection with fig. 6, the generation unit 114 may be used to perform S3042.
Generating a mapping relation according to the wireless environment type of the preset area attribution, the building types of the plurality of building attributions, the penetration loss corresponding to the wireless environment type of the preset area attribution and the building types of the plurality of building attributions, the stepping loss corresponding to the wireless environment type of the preset area attribution and the building types of the plurality of building attributions. For example, in connection with fig. 6, the generation unit 114 may be used to perform S3043.
Optionally, the preset area attribution wireless environment type and the penetration loss corresponding to the building types of the plurality of building attributions provided by the embodiment of the present invention satisfy the following formula one:
wherein D is p D, corresponding penetration loss for the wireless environment type belonging to the preset area and the building types belonging to a plurality of buildings i0 For the first test point in the ith test line bit of the plurality of test line bits, d i1 And a third test point of the ith test line bit in the plurality of test line bits, wherein n is the number of the plurality of test line bits.
Optionally, the preset area attribution wireless environment type and the stepping loss corresponding to the building types of the plurality of building attributions provided by the embodiment of the invention satisfy the following formula:
wherein D is Q For the wireless environment type of preset area attribution and the stepping loss corresponding to the building type of a plurality of building attributions, n is the number of a plurality of test line positions, m is the number of a plurality of second test point positions included in the plurality of test line positions, d i(j+1) For the j+1th second test point position in the ith test line bit in the plurality of test line bits, d ij A j second test point in an i-th test line bit of the plurality of test line bits.
In the case of implementing the functions of the integrated modules described above in the form of hardware, an embodiment of the present invention provides another possible structural schematic diagram of the propagation loss determining device involved in the above embodiment. As shown in fig. 8, a propagation loss determining device 40 is used for determining a propagation loss when a 5G network signal penetrates a building, for example, for performing the propagation loss determining method shown in fig. 2. The propagation loss determining means 40 comprises a processor 401, a memory 402 and a bus 403. The processor 401 and the memory 402 may be connected by a bus 403.
The processor 401 is a control center of the communication device, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 401 may be a general-purpose central processing unit (central processing unit, CPU), or may be other general-purpose processors. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.
As one example, processor 401 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 8.
As a possible implementation, the memory 402 may exist separately from the processor 401, and the memory 402 may be connected to the processor 401 through the bus 403, for storing instructions or program codes. When the processor 401 invokes and executes the instructions or the program codes stored in the memory 402, the method for determining propagation loss provided by the embodiment of the present invention can be implemented.
In another possible implementation, the memory 402 may also be integrated with the processor 401.
It should be noted that the structure shown in fig. 8 does not constitute a limitation of the propagation loss determining means 40. The propagation loss determining means 40 may comprise more or less components than shown in fig. 8, or certain components may be combined, or a different arrangement of components.
As an example, in connection with fig. 8, the acquisition unit 111, the inquiry unit 112 in the propagation loss determination apparatus realize the same functions as those of the processor 401 in fig. 8.
Optionally, as shown in fig. 8, the apparatus 40 for determining propagation loss provided in the embodiment of the present invention may further include a communication interface 404.
A communication interface 404 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 404 may include a receiving unit for receiving data and a transmitting unit for transmitting data.
In one design, in the apparatus for determining propagation loss provided by the embodiment of the present invention, the communication interface may also be integrated in the processor.
Fig. 9 shows another hardware configuration of the propagation loss determining apparatus in the embodiment of the present invention. As shown in fig. 9, the propagation loss determining device 50 may include a processor 501 and a communication interface 502. The processor 501 is coupled to a communication interface 502.
The function of the processor 501 may be as described above with reference to the processor 401. The processor 501 also has a memory function, and the function of the memory 402 can be referred to.
The communication interface 502 is used to provide data to the processor 501. The communication interface 502 may be an internal interface of the communication device or an external interface of the communication device (corresponding to the communication interface 404).
It is to be noted that the structure shown in fig. 9 does not constitute a limitation of the propagation loss determining means 50, and the propagation loss determining means 50 may include more or less components than those shown in fig. 9, or may combine some components, or may be different in arrangement of components.
From the above description of embodiments, it will be apparent to those skilled in the art that the foregoing functional unit divisions are merely illustrative for convenience and brevity of description. In practical applications, the above-mentioned function allocation may be performed by different functional units, i.e. the internal structure of the device is divided into different functional units, as needed, to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores instructions, when the computer executes the instructions, the computer executes each step in the method flow shown in the method embodiment.
Embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of determining propagation loss in the method embodiments described above.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: electrical connections having one or more wires, portable computer diskette, hard disk. Random access Memory (Random Access Memory, RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), registers, hard disk, optical fiber, portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium suitable for use by a person or persons of skill in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In embodiments of the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Since the apparatus for determining propagation loss, the computer readable storage medium, and the computer program product in the embodiments of the present invention may be applied to the above-mentioned method, the technical effects that can be obtained by the method may also refer to the above-mentioned method embodiments, and the embodiments of the present invention are not described herein again.
The present invention is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A method for determining propagation loss, comprising:
acquiring a wireless environment type to which a target area belongs, and acquiring a building type of a building in the target area;
inquiring the penetration loss and the stepping loss in the target area from the mapping relation comprising the wireless environment type, the building type and the propagation loss according to the wireless environment type to which the target area belongs and the building type of the building in the target area;
the wireless environment type comprises a core urban area, an urban area, a suburban area and a rural area; the building types include a low loss building type, a medium loss building type, and a high loss building type;
Constructing a signal transmitter and a plurality of test line positions penetrating through a plurality of buildings in a preset area by using preset simulation software, wherein the plurality of buildings are of the same building type, the plurality of test line positions comprise a plurality of test point positions, and the direction angles of the plurality of test line positions are of the angle range of the signal transmitted by the signal transmitter;
each test line position comprises a first test point position and a plurality of second test point positions, wherein the first test point position is a test point position outside a building before the test line position penetrates the building, and the plurality of second test point positions comprise test point positions in the building after the test line position penetrates the building;
acquiring the level values of the signal transmitters received by the plurality of test points, and determining the type of wireless environment to which a preset area belongs and the type of building to which the plurality of buildings belong;
for the wireless environment type to which the preset area belongs and the building types to which the buildings belong, determining the penetration loss corresponding to the wireless environment type to which the preset area belongs and the building types to which the buildings belong according to the level value received by the first test point position and the level value received by the third test point position in the plurality of test line positions; the third test point is the first point after the test line penetrates through the building for the first time in the plurality of second test points;
For the wireless environment type to which the preset area belongs and the building types to which the plurality of buildings belong, determining the wireless environment type to which the preset area belongs and the stepping loss corresponding to the building types to which the plurality of buildings belong according to the level values received by the plurality of second test points;
generating the mapping relation according to the wireless environment type of the preset area attribution, the building types of the plurality of building attributions, the penetration loss corresponding to the wireless environment type of the preset area attribution, the building types of the plurality of building attributions, and the stepping loss corresponding to the wireless environment type of the preset area attribution and the building types of the plurality of building attributions.
2. The method for determining propagation loss according to claim 1, wherein the constructing the signal transmitter and the plurality of test line bits penetrating the plurality of buildings within the predetermined area using the predetermined simulation software comprises:
acquiring engineering parameters of any 5G base station in the preset area, wherein the engineering parameters comprise the position of the 5G base station, the antenna transmitting power and the antenna direction angle;
constructing the signal transmitter in the preset area according to the position of the 5G base station, the antenna transmitting power and the antenna direction angle;
And determining the plurality of test line bits according to the antenna direction angle.
3. The method for determining propagation loss according to claim 1, wherein the transmission loss corresponding to the type of wireless environment to which the preset area belongs and the type of building to which the plurality of buildings belong satisfies the following formula one:
wherein D is p D, the penetration loss corresponding to the wireless environment type to which the preset area belongs and the building types to which the buildings belong i0 For the first test point location, d, in the ith test line bit of the plurality of test line bits i1 And the third test point position of the ith test line bit in the plurality of test line bits, wherein n is the number of the plurality of test line bits.
4. The method for determining propagation loss according to claim 1, wherein the wireless environment type to which the preset area belongs and the step loss corresponding to the building type to which the plurality of buildings belong satisfy the following formula:
wherein D is Q For the wireless environment type to which the preset area belongs and the stepping loss corresponding to the building type to which the plurality of buildings belong, n is the number of the plurality of test line positions, m is the number of a plurality of second test point positions included in the plurality of test line positions, and d i(j+1) For the j+1th second test point position in the ith test line bit in the plurality of test line bits, d ij And a j second test point in an i test line bit in the plurality of test line bits.
5. The device for determining the propagation loss is characterized by comprising an acquisition unit, a query unit, a construction unit and a generation unit;
the acquisition unit is used for acquiring the type of the wireless environment to which the target area belongs and the building type of the building in the target area;
the inquiring unit is used for inquiring the penetration loss and the stepping loss in the target area from the mapping relation comprising the wireless environment type, the building type and the propagation loss according to the wireless environment type to which the target area belongs and the building type of the building in the target area, which are acquired by the acquiring unit;
the wireless environment type comprises a core urban area, an urban area, a suburban area and a rural area; the building types include a low loss building type, a medium loss building type, and a high loss building type;
the construction unit is used for constructing a signal transmitter and a plurality of test line positions penetrating through a plurality of buildings in a preset area by utilizing preset simulation software, wherein the plurality of buildings are of the same building type, the plurality of test line positions comprise a plurality of test point positions, and the direction angles of the plurality of test line positions are of the angle range of the signal transmitted by the signal transmitter;
Each test line position comprises a first test point position and a plurality of second test point positions, wherein the first test point position is a test point position outside a building before the test line position penetrates the building, and the plurality of second test point positions comprise test point positions in the building after the test line position penetrates the building;
the acquisition unit is further used for acquiring the level values of the signal transmitters received by the plurality of test points and determining the type of wireless environment to which a preset area belongs and the type of building to which the plurality of buildings belong;
the generating unit is used for: for the wireless environment type to which the preset area belongs and the building types to which the buildings belong, determining the penetration loss corresponding to the wireless environment type to which the preset area belongs and the building types to which the buildings belong according to the level value received by the first test point position and the level value received by the third test point position in the plurality of test line positions; the third test point is the first point after the test line penetrates through the building for the first time in the plurality of second test points;
the generating unit is further configured to: for the wireless environment type to which the preset area belongs and the building types to which the plurality of buildings belong, determining the wireless environment type to which the preset area belongs and the stepping loss corresponding to the building types to which the plurality of buildings belong according to the level values received by the plurality of second test points;
The generating unit is further configured to: generating the mapping relation according to the wireless environment type of the preset area attribution, the building types of the plurality of building attributions, the penetration loss corresponding to the wireless environment type of the preset area attribution, the building types of the plurality of building attributions, and the stepping loss corresponding to the wireless environment type of the preset area attribution and the building types of the plurality of building attributions.
6. The propagation loss determination device according to claim 5, wherein the construction unit is specifically configured to:
acquiring engineering parameters of any 5G base station in the preset area, wherein the engineering parameters comprise the position of the 5G base station, the antenna transmitting power and the antenna direction angle;
constructing the signal transmitter in the preset area according to the position of the 5G base station, the antenna transmitting power and the antenna direction angle;
and determining a plurality of test line positions according to the antenna direction angle, wherein each test line position comprises a first test point position and a plurality of second test point positions, the first test point position is a test point position outside a building before the test line position penetrates the building, and the plurality of second test point positions comprise test point positions of the test line position in the building after the test line position penetrates the building.
7. The propagation loss determining apparatus according to claim 5, wherein the transmission loss corresponding to the type of wireless environment to which the preset area belongs and the type of building to which the plurality of buildings belong satisfies the following formula one:
wherein D is p D, the penetration loss corresponding to the wireless environment type to which the preset area belongs and the building types to which the buildings belong i0 For the first test point location, d, in the ith test line bit of the plurality of test line bits i1 And the third test point position of the ith test line bit in the plurality of test line bits, wherein n is the number of the plurality of test line bits.
8. The apparatus according to claim 5, wherein the predetermined area-belonged wireless environment type and the step loss corresponding to the building type belonged to the plurality of buildings satisfy the following formula:
wherein D is Q For the wireless environment type to which the preset area belongs and the stepping loss corresponding to the building type to which the plurality of buildings belong, n is the number of the plurality of test line positions, m is the number of a plurality of second test point positions included in the plurality of test line positions, and d i(j+1) For the j+1th second test point position in the ith test line bit in the plurality of test line bits, d ij And a j second test point in an i test line bit in the plurality of test line bits.
9. A computer readable storage medium storing one or more programs, wherein the one or more programs comprise instructions, which when executed by a computer, cause the computer to perform the propagation loss determination method of any one of claims 1-4.
10. A propagation loss determining apparatus, comprising: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs comprising computer-executable instructions that, when executed by the determining device, cause the determining device to perform the propagation loss determination method of any of claims 1-4.
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