CN112399450B - Interference assessment method and device - Google Patents
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Abstract
The invention discloses an interference assessment method and device, which relate to the technical field of communication and are used for determining the interference of a 5G cell to a satellite ground station, and the method comprises the following steps: acquiring engineering parameters of a plurality of cells in a target area, engineering parameters of one or more satellite stations and an electronic map of the target area; the engineering parameters of the one or more satellite stations include a position of each satellite station, a satellite antenna altitude, and a satellite antenna gain; determining a receiving level value of one or more satellite stations according to the acquired engineering parameters of a plurality of cells, the engineering parameters of one or more satellite stations and the electronic map of the target area; the receiving level value of one satellite station is used for reflecting the level value of a plurality of cells received by one satellite station; determining an evaluation value of the power spectral density of the target satellite station according to the reception level value of the target satellite station in the one or more satellite stations; and determining interference evaluation values of a plurality of cells to the target satellite station according to the evaluation values of the power spectral density of the target satellite station.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for interference assessment.
Background
With the development of the fifth generation mobile communication technology (5th generation mobile networks,5G) network, there is a case where a 5G network and a satellite ground station coexist in the existing wireless environment.
However, since the frequency bands used by the 5G network are 3400MHz-3600MHz and 4800MHz-5000MHz, the same-frequency and adjacent-frequency interference exists with the satellite ground station in the existing C frequency band, and particularly the same-frequency interference has the greatest influence on the existing satellite ground station. Therefore, in 5G network site selection and construction schemes, interference of the 5G station to the satellite ground station needs to be evaluated in order to take necessary isolation protection measures.
Disclosure of Invention
The embodiment of the invention provides an interference evaluation method and device, which are used for determining the interference condition of a 5G cell to a satellite ground station.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
in a first aspect, there is provided a method of interference assessment, the method comprising: acquiring engineering parameters of a plurality of cells in a target area, engineering parameters of one or more satellite stations and an electronic map of the target area; the engineering parameters of the one or more satellite stations include a position of each satellite station, a satellite antenna altitude, and a satellite antenna gain; determining a receiving level value of one or more satellite stations according to the acquired engineering parameters of a plurality of cells, the engineering parameters of one or more satellite stations and the electronic map of the target area; the receiving level value of one satellite station is used for reflecting the level value of a plurality of cells received by one satellite station; determining an evaluation value of the power spectral density of the target satellite station according to the reception level value of the target satellite station in the one or more satellite stations; and determining interference evaluation values of a plurality of cells to the target satellite station according to the evaluation values of the power spectral density of the target satellite station.
In a second aspect, there is provided an interference evaluating apparatus including an acquisition unit and a determination unit; the acquisition unit is used for acquiring engineering parameters of a plurality of cells in the target area, engineering parameters of one or more satellite stations and an electronic map of the target area; the engineering parameters of the one or more satellite stations include a position of each satellite station, a satellite antenna altitude, and a satellite antenna gain; the determining unit is used for determining the receiving level value of one or more satellite stations according to the acquired engineering parameters of the cells, the engineering parameters of one or more satellite stations and the electronic map of the target area; the receiving level value of one satellite station is used for reflecting the level value of a plurality of cells received by one satellite station; a determining unit, configured to determine an evaluation value of a power spectral density of a target satellite station according to a reception level value of the target satellite station in the one or more satellite stations; and the determining unit is also used for determining interference evaluation values of a plurality of cells to the target satellite station according to the evaluation value of the power spectrum density of the target satellite station.
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 the interference assessment method as in the first aspect.
In a fourth aspect, an interference assessment 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 interference assessment device, cause the interference assessment device to perform the interference assessment method 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 interference assessment method of the first aspect.
The embodiment of the invention provides an interference evaluation method and device, which adopt the technical characteristics and can evaluate the interference degree of a plurality of cells to a satellite station in advance according to engineering parameters of the satellite station and engineering parameters of the cells so as to take necessary isolation protection measures.
Drawings
Fig. 1 is a schematic structural diagram of an interference estimation system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an interference evaluation method according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for interference estimation according to an embodiment of the present invention;
fig. 4 is a schematic flow chart III of an interference evaluation method according to an embodiment of the present invention;
fig. 5 is a schematic flow chart diagram of an interference evaluation method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an interference estimation device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a disturbance evaluation device according to a second embodiment of the present invention;
fig. 8 is a schematic diagram of a structure of an interference estimation device 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. Furthermore, "one or more" 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 interference evaluation method provided by the embodiment of the invention can be applied to an interference evaluation system. Fig. 1 shows a schematic diagram of a construction of the interference evaluation system. As shown in fig. 1, the interference evaluation system 10 includes an interference evaluation device 11 and a network management apparatus 12. The interference evaluating means 11 is connected to the network management device 12. The interference evaluation device 11 and the network management 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 interference evaluation device 11 may be configured to perform data interaction with the network management device 12, for example, the interference evaluation device 11 may obtain engineering parameters of base stations where a plurality of cells are located and engineering parameters of a plurality of satellite ground stations (for convenience of description, hereinafter simply referred to as satellite stations) from the network management device 12, and send interference evaluation values of the plurality of cells on the satellite stations to the gateway device 12.
The network management device 12 may be connected to a plurality of base stations and a plurality of satellite stations, and configured to acquire engineering parameters of the plurality of base stations and engineering parameters of the plurality of satellite stations, and send the acquired engineering parameters to the interference evaluation device 11.
It should be noted that, the interference evaluation device 11 and the network management 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 interference assessment device 11 and the network management device 12 are integrated in the same device, the communication mode between the interference assessment device 11 and the network management device 12 is the communication between the internal modules of the device. In this case, the communication flow between the two is the same as "in the case where the interference evaluating device 11 and the network management apparatus 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 interference evaluating means 11 and the network management device 12 are provided independently of each other.
The interference evaluation method provided by the embodiment of the invention is described below with reference to the accompanying drawings.
As shown in fig. 2, the interference evaluation method provided by the embodiment of the present invention includes S201-S204:
s201, the interference evaluation device acquires engineering parameters of a plurality of cells in the target area, engineering parameters of one or more satellite stations and an electronic map of the target area.
The engineering parameters of the cells comprise the position of a base station where each cell is located, the power load of the base station, the antenna height, azimuth angle, pitch angle and antenna power of each cell. The engineering parameters of the one or more satellite stations include a position of each satellite station, a satellite antenna altitude, and a satellite antenna gain.
As one possible implementation, the interference assessment means determines a target area comprising one or more satellite stations.
It should be noted that one or more satellite stations may be established satellite stations, or may be planned satellite stations or established satellite stations. One or more satellite stations may be located at a central location of the target area.
By way of example, any one of the one or more satellite stations may have a minimum distance of 40Km from the edge of the target area.
Further, after determining the target area, the interference evaluation device may acquire the 5G cells included in the target area from the network management device as the plurality of cells, and acquire engineering parameters of the plurality of cells and engineering parameters of one or more satellite stations.
It should be noted that the location of the base station where each cell is located, the antenna height, azimuth angle, pitch angle and antenna power of each cell may be obtained from the network management device. The power load of the base station where each cell is located can be calculated by an interference evaluation device or network management equipment according to the physical resource utilization rate of the base station. The position of each satellite station may be obtained from the network management equipment by the interference assessment means. The antenna height of each satellite station can be determined by the interference evaluation device or the network management equipment according to the support height of the satellite antenna and the sum of the distances between the center of the satellite antenna and the upper edge of the support. The antenna gain of each antenna satellite can be determined by the interference evaluation device or the network management equipment according to the parameters of the antenna size, the antenna type, the antenna performance and the like of the satellite antenna.
In this step, the specific implementation manner of determining the power load of the base station according to the material resource utilization ratio of the base station, and the specific implementation manner of determining the gain of the satellite parameters according to the size, the antenna type, the antenna performance and other parameters of the satellite antenna may refer to the prior art, and will not be described herein.
Further, the interference evaluation device determines an electronic map corresponding to the target area according to the longitude and latitude of the edge of the target area.
It should be noted that the electronic map is a three-dimensional electronic map.
S202, the interference evaluation device determines the receiving level value of one or more satellite stations according to the acquired engineering parameters of a plurality of cells, the engineering parameters of one or more satellite stations and the electronic map of the target area.
Wherein the reception level value of one satellite station is used to reflect the level values of a plurality of cells received by one satellite station.
As one possible implementation manner, the interference evaluation device determines a level value of each satellite station for receiving signals transmitted by a plurality of cells through different channels based on the acquired engineering parameters of the plurality of cells, the engineering parameters of one or more satellite stations, the electronic map of the target area and preset simulation software, and performs superposition processing on the determined level value to determine a reception level value of each satellite station.
It should be noted that the interference evaluation device includes a preset simulation software, and the simulation software includes a three-dimensional ray tracking model.
The specific implementation of this step may refer to the following description of the embodiment of the present invention, and will not be described herein.
S203, the interference evaluation device determines an evaluation value of the power spectrum density of the target satellite station according to the receiving level value of the target satellite station in the one or more satellite stations.
As a possible implementation, the interference evaluation device processes the reception level value of the target satellite station by using a preset formula to convert the reception level value of the target satellite station into an evaluation value of the power spectral density of the target level value.
The target satellite station is any one of the one or more satellite stations.
The specific implementation of this step may refer to the following description of the embodiment of the present invention, and will not be described herein.
S204, the interference evaluation device determines interference evaluation values of a plurality of cells to the target satellite station according to the evaluation value of the power spectrum density of the target satellite station.
As a possible implementation manner, the interference evaluation device performs a comparison of the magnitude of the determined power spectrum density of the target satellite station and the power spectrum density that can be received by the target satellite station, so as to determine interference evaluation values of a plurality of cells to the target satellite station.
The specific implementation of this step may refer to the following description of the embodiment of the present invention, and will not be described herein.
In the embodiment of the present disclosure, in order to determine the reception level values of one or more satellite stations, as shown in fig. 3, S202 provided in the embodiment of the present invention specifically includes S301 to S302.
S301, the interference evaluation device inputs engineering parameters of a plurality of cells, engineering parameters of one or more satellite stations and an electronic map of a target area into preset simulation software to obtain a level value of at least one channel of each cell in the plurality of cells received by the one or more satellite stations.
Wherein the at least one channel comprises one or more of a physical downlink control channel (Physical Downlink Control Channel, PDCCH), a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), and a synchronization signal (Synchronization Signal, SS) and a physical broadcast channel (Physical Broadcast Channel, PBCH).
The result output in the simulation software of the interference estimation device is not limited to the above level value.
Illustratively, the table shows the results of simulation software output in the disturbance evaluation device.
List one
Where Position Id is an identification of one or more satellite stations, X is the longitude of the satellite station, Y is the latitude of the satellite station, height is the Height of the satellite antenna of the satellite station in meters (m). Distance is the Distance between the satellite station and any one cell in m. Path Loss (DL) is the Path Loss between a satellite station and any one cell in dB. Received PDCCH Power is a level value of a PDCCH channel of any cell received by a satellite station, and is expressed in dBm. Received PDCCH EPRE is the resource element energy (Energy Per Resource Element, EPRE) in dBm of a satellite station receiving the PDCCH of any one cell. Received PDSCH Power is a level value of PDSCH received by a satellite station in dBm for any one cell. Received PDSCH EPRE is EPRE in dBm for a satellite station to receive PDSCH of any one cell. Received SS Power is the level value of SS received by a satellite station in dBm for any one cell. The Received SS-RSRP is the reference signal Received power (Reference Signal Receiving Power, RSRP) in dBm for the satellite station to receive the SS of any one cell. Received PBCH Power is the level value of the PBCH of any cell received by the satellite station, and is expressed in dBm. Received PBCH EPRE is the EPRE in dBm of the satellite station receiving the PBCH of any one cell. Channel Overlap Factor is the channel overlap factor of a satellite station with any one cell in dB.
S302, for a target satellite station, the interference evaluation device determines the sum of the level values of at least one channel of a plurality of cells received by the target satellite station as the receiving level value of the target satellite station.
As a possible implementation, the interference evaluation device calculates a sum of the level values of at least one channel of each cell received by the target satellite station, and uses the calculation result as the reception level value of the target satellite station.
Illustratively, in the case where at least one channel of the cell includes PDCCH, PDSCH, SS and PBCH, the reception level value of the target satellite station satisfies the following equation one:
wherein P is all For the reception level value of the target satellite station, n is the number of the plurality of cells, k is the kth cell of the plurality of cells, P k_PDCCH Receiving a level value, P, of a PDCCH of a kth cell for a target satellite station k_PDSCH Receiving a level value of a PDSCH of a kth cell for a target satellite station, P k_SS Receiving the level value of SS of the kth cell for the target satellite station, P k_PBCH The level value of PBCH of the kth cell is received for the target satellite station.
In the embodiment of the present disclosure, in order to be able to determine the evaluation value of the power spectrum density of the target satellite station, as shown in fig. 4, the present invention is provided with S203, specifically including the following S401 to S402.
S401, the interference evaluation device acquires network bandwidths configured by a plurality of cells.
As a possible implementation manner, the interference evaluation device obtains network bandwidths configured by a plurality of cells from the network management device.
It should be noted that, the network bandwidth configured by the plurality of cells may be an average value of network bandwidths of base stations where the plurality of cells are located.
S402, the interference evaluation device determines an evaluation value of the power spectrum density of the target satellite station according to the receiving level value and the network bandwidth of the target satellite station.
As a possible implementation manner, the interference evaluation device calculates an evaluation value of the power spectrum density of the target satellite station based on the determined reception level value of the target satellite station, the network bandwidths configured by the plurality of cells and a preset formula.
The estimated value of the power spectral density of the target satellite station satisfies the following equation two:
P ao ＝P all -10×log (B) equation two
Wherein P is ao For the evaluation of the power spectral density of the target satellite station, P all B is a network bandwidth configured for a plurality of cells for a reception level value of a target satellite station.
In one design, in order to evaluate the interference degree of the 5G cell to the satellite station according to the evaluation value of the calculated power spectrum density, as shown in fig. 5, S204 provided in the embodiment of the present invention may specifically include the following S501-S502.
S501, the interference evaluation device acquires a required value of the receiving power spectral density of the target satellite station.
As a possible implementation, the interference assessment means may obtain the required value of the received power spectral density of the target satellite station from the network management device.
The required value of the satellite station receiving power spectral density is the value of the receiving power spectral density required by the broadband LNA interface of the satellite station.
S502, the interference evaluation device determines the difference between the evaluation value of the power spectrum density of the target satellite station and the required value of the received power spectrum density, and the difference is the interference evaluation value of a plurality of cells to the target satellite station.
As one possible implementation, the interference evaluating means calculates a difference between the evaluation value of the power spectral density of the target satellite station and the required value of the received power spectral density as interference evaluation values of the plurality of cells to the target satellite station.
Alternatively, as another possible implementation manner, the interference evaluation device may further calculate a difference between the evaluation value of the target satellite station and the first threshold value, as the interference evaluation value of the target satellite station. The first threshold is lower than the required value of the received power spectral density.
Illustratively, the first threshold is 10dB below the required value of the received power spectral density.
After determining the interference evaluation value, the interference evaluation device sends the determined interference evaluation value to the network management equipment, so that an operation and maintenance person of the evaluation system can perform corresponding isolation processing according to the interference evaluation value.
It will be appreciated that, according to the above-described interference estimation method, the interference estimation device may determine interference estimation values of a plurality of cells in the target area to one or more satellite stations in the target area.
In one design, in order to evaluate the overall interference situation in the target area, the interference evaluation method provided by the embodiment of the invention further includes:
s601, an interference evaluation device determines interference evaluation values of a plurality of satellite stations in a target area.
The screenshot implementation of this step may refer to the specific description in the above interference assessment method provided in the embodiment of the present invention.
S602, in the interference evaluation values of the plurality of satellite stations, if the ratio of the number of the satellite stations larger than the second threshold to the number of the plurality of satellite stations is larger than the third threshold, the interference evaluation device determines that the interference result is pessimistic.
The second threshold value and the third threshold value may be set in advance by the operation and maintenance personnel in the interference evaluation device.
It should be noted that, under the pessimistic situation of the interference result, the interference evaluation device adjusts the factor of the current evaluation, and mainly includes: the method comprises the steps of adjusting the number of 5G cells in a target area or engineering parameters of each 5G cell, modeling accuracy degree of simulation software, correction degree of a three-dimensional ray tracking model in the simulation software and obtaining the engineering parameters of a plurality of cells and the accuracy degree of the engineering parameters of a satellite station.
S603, in the interference evaluation values of the plurality of satellite stations, if the ratio of the number of satellite stations greater than the second threshold to the number of the plurality of satellite stations is greater than the third threshold, the interference evaluation device determines that the interference result is optimistic.
The embodiment of the invention provides an interference evaluation method and device, which adopt the technical characteristics and can evaluate the interference degree of a plurality of cells to a satellite station in advance according to engineering parameters of the satellite station and engineering parameters of the cells so as to take necessary isolation protection measures.
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 interference evaluation device according to the method example, for example, each functional module can be divided corresponding to each function, or 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. 6 is a schematic structural diagram of an interference estimation device according to an embodiment of the present invention. As shown in fig. 6, the interference evaluation device 11 is used for determining the interference level of the 5G cell to the satellite station, for example, for performing the interference evaluation method shown in fig. 2. The interference evaluating device 11 includes an acquisition unit 111 and a determination unit 112.
And an obtaining unit 111, configured to obtain engineering parameters of a plurality of cells in the target area, engineering parameters of one or more satellite stations, and an electronic map of the target area. The engineering parameters of the one or more satellite stations include a position of each satellite station, a satellite antenna altitude, and a satellite antenna gain. For example, in connection with fig. 2, the acquisition unit 111 may be used to perform S201.
A determining unit 112, configured to determine a reception level value of one or more satellite stations according to the acquired engineering parameters of the plurality of cells, the engineering parameters of the one or more satellite stations, and the electronic map of the target area. The reception level value of one satellite station is used to reflect the level values of a plurality of cells received by one satellite station. For example, in connection with fig. 2, the determination unit 112 may be used to perform S202.
The determining unit 112 is further configured to determine an evaluation value of the power spectral density of the target satellite station according to the reception level values of the target satellite station of the one or more satellite stations. For example, in connection with fig. 2, the determination unit 112 may be used to perform S203.
The determining unit 112 is further configured to determine interference evaluation values of the plurality of cells to the target satellite station according to the evaluation value of the power spectral density of the target satellite station. For example, in connection with fig. 2, the determination unit 112 may be used to perform S204.
Optionally, as shown in fig. 6, the determining unit 112 provided in the embodiment of the present invention is specifically configured to:
the engineering parameters of a plurality of cells, the engineering parameters of one or a plurality of satellite stations and an electronic map of a target area are input into preset simulation software to obtain a level value of at least one channel of each cell in the plurality of cells received by one or a plurality of satellite stations, wherein the at least one channel comprises one or a plurality of physical downlink control channels PDCCH, physical downlink shared channels PDSCH, synchronous signals SS and physical broadcast channels PBCH. For example, in connection with fig. 3, the determination unit 112 may be used to perform S301.
For a target satellite station, determining a sum of level values of at least one channel of a plurality of cells received by the target satellite station as a reception level value of the target satellite station. For example, in connection with fig. 3, the determination unit 112 may be used to perform S302.
Optionally, as shown in fig. 6, the determining unit 112 provided in the embodiment of the present invention is specifically configured to:
network bandwidth configured by a plurality of cells is acquired. For example, in connection with fig. 4, the determination unit 112 may be used to perform S401.
And determining an evaluation value of the power spectrum density of the target satellite station according to the receiving level value of the target satellite station and the network bandwidth. For example, in connection with fig. 4, the determination unit 112 may be used to perform S402.
Optionally, as shown in fig. 6, the evaluation value of the power spectrum density of the target satellite station provided in the embodiment of the present invention satisfies the following formula:
P ao ＝P all -10×log(B)
wherein P is ao For the evaluation of the power spectral density of the target satellite station, P all B is a network bandwidth configured for a plurality of cells for a reception level value of a target satellite station.
Optionally, as shown in fig. 6, the determining unit 112 provided in the embodiment of the present invention is specifically configured to:
a desired value of the received power spectral density of the target satellite station is obtained. For example, in connection with fig. 5, the determination unit 112 may be used to perform S501.
And determining the difference between the estimated value of the power spectrum density of the target satellite station and the required value of the received power spectrum density as the interference estimated value of a plurality of cells to the target satellite station. For example, in connection with fig. 5, the determination unit 112 may be used to perform S502.
In case of implementing the functions of the integrated modules in the form of hardware, another possible structural schematic diagram of the interference assessment device involved in the above embodiment is provided in the embodiment of the present invention. As shown in fig. 7, an interference evaluation device 70 is used for determining the interference level of the 5G cell to the satellite station, for example, for performing the interference evaluation method shown in fig. 2. The interference assessment device 70 comprises a processor 701, a memory 702 and a bus 703. The processor 701 and the memory 702 may be connected by a bus 703.
The processor 701 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 701 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.
As one example, processor 701 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 7.
As a possible implementation, the memory 702 may exist separately from the processor 701, and the memory 702 may be connected to the processor 701 through the bus 703 for storing instructions or program code. The interference assessment method provided by the embodiment of the present invention can be implemented when the processor 701 calls and executes instructions or program codes stored in the memory 702.
In another possible implementation, the memory 702 may also be integrated with the processor 701.
It should be noted that the structure shown in fig. 7 does not constitute a limitation of the interference evaluating device 70. In addition to the components shown in fig. 7, the interference assessment device 70 may include more or fewer components than shown, or may combine certain components, or may have a different arrangement of components.
As an example, in connection with fig. 7, the acquisition unit 111, the determination unit 112 in the interference evaluation device realize the same functions as the processor 701 in fig. 7.
Optionally, as shown in fig. 7, the interference assessment device 70 provided in the embodiment of the present invention may further include a communication interface 704.
In one design, in the interference assessment device provided by the embodiment of the present invention, the communication interface may also be integrated in the processor.
Fig. 8 shows another hardware configuration of the interference evaluation apparatus in the embodiment of the present invention. As shown in fig. 8, the interference assessment device 80 may include a processor 801 and a communication interface 802. The processor 801 is coupled to a communication interface 802.
The function of the processor 801 may be as described above with reference to the processor 501. The processor 801 also has a memory function, and can refer to the function of the memory 502.
The communication interface 802 is used to provide data to the processor 801. The communication interface 802 may be an internal interface of the communication device or an external interface of the communication device (corresponding to the communication interface 504).
It should be noted that the structure shown in fig. 8 does not constitute a limitation of the interference evaluating apparatus 80, and that the interference evaluating apparatus 80 may include more or less components than those shown in fig. 8, or may combine some components, or may be a different 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 interference assessment method 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 interference evaluating apparatus, the computer readable storage medium and the computer program product in the embodiments of the present invention can be applied to the above-mentioned method, the technical effects obtained by the method can 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 (8)
1. A method of interference assessment, comprising:
acquiring engineering parameters of a plurality of cells in a target area, engineering parameters of one or more satellite stations and an electronic map of the target area; the engineering parameters of the one or more satellite stations include a position of each satellite station, a satellite antenna altitude, and a satellite antenna gain;
determining a receiving level value of one or more satellite stations according to the acquired engineering parameters of the cells, the engineering parameters of the one or more satellite stations and the electronic map of the target area; the reception level value of the one satellite station is used for reflecting the level values of the plurality of cells received by the one satellite station;
determining an evaluation value of the power spectral density of a target satellite station in the one or more satellite stations according to the receiving level value of the target satellite station;
acquiring a required value of the received power spectrum density of the target satellite station;
determining a difference between an estimated value of the power spectral density of the target satellite station and a required value of the received power spectral density as an interference estimated value of the plurality of cells to the target satellite station;
wherein the determining the receiving level value of the one or more satellite stations according to the acquired engineering parameters of the plurality of cells, the engineering parameters of the one or more satellite stations and the electronic map of the target area comprises:
inputting engineering parameters of the cells, engineering parameters of the one or more satellite stations and an electronic map of the target area into preset simulation software to obtain a level value of at least one channel of each cell of the cells received by the one or more satellite stations, wherein the at least one channel comprises one or more of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a synchronous signal SS and a physical broadcast channel PBCH;
for the target satellite station, determining a sum of level values of at least one channel of the plurality of cells received by the target satellite station as a reception level value of the target satellite station.
2. The interference assessment method according to claim 1, wherein the determining an assessment value of a power spectral density of a target satellite station from reception level values of the target satellite station among the one or more satellite stations comprises:
acquiring network bandwidths configured by the cells;
and determining an evaluation value of the power spectrum density of the target satellite station according to the receiving level value of the target satellite station and the network bandwidth.
3. The interference assessment method according to claim 2, wherein the assessment value of the power spectral density of the target satellite station satisfies the following formula:
P ao ＝P all -10×log(B)
wherein P is ao For the evaluation of the power spectral density of the target satellite station, P all And B is the network bandwidth configured for the plurality of cells for the reception level value of the target satellite station.
4. An interference evaluation device is characterized by comprising an acquisition unit and a determination unit;
the acquisition unit is used for acquiring engineering parameters of a plurality of cells in a target area, engineering parameters of one or more satellite stations and an electronic map of the target area; the engineering parameters of the one or more satellite stations include a position of each satellite station, a satellite antenna altitude, and a satellite antenna gain;
the determining unit is used for determining the receiving level value of the one or more satellite stations according to the acquired engineering parameters of the plurality of cells, the engineering parameters of the one or more satellite stations and the electronic map of the target area; the reception level value of the one satellite station is used for reflecting the level values of the plurality of cells received by the one satellite station;
the determining unit is further configured to determine an evaluation value of a power spectral density of a target satellite station according to a reception level value of the target satellite station in the one or more satellite stations;
the determining unit is further configured to obtain network bandwidths configured by the plurality of cells; determining an evaluation value of the power spectrum density of the target satellite station according to the receiving level value of the target satellite station and the network bandwidth;
the determining unit is specifically configured to input the engineering parameters of the multiple cells, the engineering parameters of the one or more satellite stations, and the electronic map of the target area to preset simulation software, so as to obtain a level value of at least one channel of each of the multiple cells received by the one or more satellite stations, where the at least one channel includes one or more of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a synchronization signal SS, and a physical broadcast channel PBCH;
for the target satellite station, determining a sum of level values of at least one channel of the plurality of cells received by the target satellite station as a reception level value of the target satellite station.
5. The interference assessment device according to claim 4, wherein the determining unit is specifically configured to:
acquiring network bandwidths configured by the cells;
and determining an evaluation value of the power spectrum density of the target satellite station according to the receiving level value of the target satellite station and the network bandwidth.
6. The interference assessment device according to claim 5, wherein the estimated value of the power spectral density of the target satellite station satisfies the following formula:
P ao ＝P all -10×log(B)
wherein P is ao For the evaluation of the power spectral density of the target satellite station, P all Receiving electricity for the target satellite stationAnd B is a network bandwidth configured by the cells.
7. 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 interference assessment method of any of claims 1-3.
8. An interference assessment device, 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 interference assessment device, cause the interference assessment device to perform the interference assessment method of any of claims 1-3.
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