CN117580054A - NTN cell construction method, device, equipment and medium based on use demand data - Google Patents
NTN cell construction method, device, equipment and medium based on use demand data Download PDFInfo
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- H—ELECTRICITY
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Abstract
The application discloses a method, a device, equipment and a medium for constructing an NTN cell based on use requirement data, and belongs to the technical field of wireless communication networks. The method comprises the following steps: determining the historical connection position of the terminal equipment connected according to the historical connection data of the NTN network connection; determining distributed data of the terminal equipment for NTN network connection according to the historical connection position; for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data; and determining the power information of each beam in the multi-beam cell according to the number of the multi-beam cells and the signal quality requirement. According to the technical scheme, the quantity and the signal quality requirements of the multi-beam cells are determined, and the power information of each beam is further determined, so that the satellite can be helped to adjust the emitted power of each beam, the signal quality requirements of each terminal device in a target area are met, and the construction reliability of the multi-beam NTN cells is improved.
Description
Technical Field
The application belongs to the technical field of wireless communication networks, and particularly relates to an NTN cell construction method, device, equipment and medium based on use requirement data.
Background
The intelligent terminal equipment needs to be kept within the coverage range of the ground base station to communicate. However, the conventional ground network cannot provide stable communication service in some areas due to complicated geographical environment, underdeveloped infrastructure, disaster damage and the like. While NTN (Non-Terrestrial Network, non-ground network) uses satellite, airship or unmanned plane, etc. Non-ground platform, which can overcome these limitations and realize communication coverage in the global scope.
The existing NTN cell construction method generally carries out large-scale coverage on a target area based on the area size of the target area, but the connection positions of all terminal devices in the target area are different, the corresponding requirements for signal quality are different, and the NTN cell constructed by using the existing construction method cannot accurately and dynamically meet the different signal quality requirements of all terminal devices. Therefore, how to enable the constructed NTN cell to meet various signal quality requirements is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
An objective of the embodiments of the present application is to provide a method, an apparatus, a device, and a medium for NTN cell construction based on usage requirement data, so as to meet signal quality requirements of terminal devices in a target area, and improve reliability of multi-beam NTN cell construction.
In a first aspect, an embodiment of the present application provides a method for NTN cell construction based on usage requirement data, where the method includes:
acquiring historical connection data of NTN network connection;
determining a historical connection position of the terminal equipment for connection according to the historical connection data;
determining distribution data of the terminal equipment for NTN network connection according to the historical connection position;
for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data;
and determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement.
In a second aspect, an embodiment of the present application provides an NTN cell construction apparatus based on usage requirement data, where the apparatus includes:
the historical connection acquisition module is used for acquiring historical connection data of the NTN network connection;
A history position determining module, configured to determine a history connection position of a terminal device that performs connection according to the history connection data;
the distributed data determining module is used for determining distributed data of NTN network connection of the terminal equipment according to the historical connection position;
the beam cell determining module is used for determining the number of the multi-beam cells required to be constructed in the current target area and the signal quality requirements of the beam cells according to the distribution data for the current target area;
and the power information determining module is used for determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement.
In a third aspect, embodiments of the present application provide an electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In the embodiment of the application, historical connection data of NTN network connection is obtained; determining a historical connection position of the terminal equipment for connection according to the historical connection data; determining distribution data of the terminal equipment for NTN network connection according to the historical connection position; for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data; and determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement. According to the NTN cell construction method based on the use requirement data, the number and the signal quality requirements of the multi-beam cells are determined, and the power information of each beam is further determined, so that the satellite can be helped to adjust the emitted power of each beam, the signal quality requirements of each terminal device in a target area are met, and the construction reliability of the multi-beam NTN cell is improved.
Drawings
Fig. 1 is a flow chart of an NTN cell construction method based on usage requirement data according to an embodiment of the present application;
fig. 2 is a flow chart of an NTN cell construction method based on usage requirement data according to a second embodiment of the present application;
fig. 3 is a flow chart of an NTN cell construction method based on usage requirement data according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of an NTN cell construction apparatus based on usage requirement data according to a fourth embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following detailed description of specific embodiments thereof is given with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present application are shown in the accompanying drawings. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The method, the device, the equipment and the medium for constructing the NTN cell based on the use requirement data provided by the embodiment of the application are described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Example 1
Fig. 1 is a flowchart of an NTN cell construction method based on usage requirement data according to an embodiment of the present application. As shown in fig. 1, the method specifically comprises the following steps:
s101, acquiring historical connection data of NTN network connection;
first, the present application is applicable to the scenario of constructing a beam cell for a target area. Based on the above usage scenario, it can be appreciated that the execution subject of the present application may be an NTN server. Specifically, the determination of the historical connection position, the determination of the number of multi-beam cells and the signal quality requirement, the determination of the power information of each beam and the like can be performed by the NTN server, and the terminal equipment in the target area is connected with the corresponding beam cell through the NTN network so as to meet the signal quality requirement of all the terminal equipment in the target area.
NTN (Non-Terrestrial Network ) refers to a network that provides wireless communication services using Non-traditional means (e.g., satellites, airships, drones, etc.). Compared with the traditional ground network, the NTN has the advantages of wide area coverage, quick deployment, elastic expansion and the like, and can provide communication service in remote areas, disaster areas or temporary activities. An NTN server refers to a computer system used in NTN to process and manage network communications. An NTN cell refers to a communication unit established in NTN.
The satellite refers to an artificial celestial body capable of running on the earth orbit and can be used for communication, navigation, remote sensing, meteorological observation and the like, and specifically, the satellite in the technical scheme refers to a satellite capable of providing NTN (network time series) connection service and serving as a communication base station.
The beam refers to the concentrated directivity of the radiated electromagnetic waves generated by the antenna array system on the satellite in the wireless communication, and one satellite can generate at least one beam, one beam corresponding to one NTN cell. The NTN cell and the beam cell described below are the same object.
The terminal device may refer to an electronic device having computing power and internet connection capability, such as a desktop computer, a notebook computer, a mobile phone, a tablet computer, an interactive multimedia device, and the like.
The historical connection data may refer to recording data of NTN network connection between the terminal device and the satellite before the current point in time, and may include an identifier of the terminal device, a connection location, a start connection time, a connection request type, and the like. After receiving a connection request sent by a terminal device, the satellite decodes the connection request, acquires information such as an identifier, a connection position, a connection starting time, a connection request type and the like in the connection request, records and stores the information such as the identifier, the connection position, the connection starting time, the connection request type and the like, and can acquire historical connection data by accessing and querying an NTN server.
S102, determining the historical connection position of the terminal equipment for connection according to the historical connection data;
the historical connection location may refer to a connection location included in the historical connection data, that is, longitude and latitude coordinates where the terminal device sends a connection request to the satellite. The historical connection position can be determined by screening the historical connection data using the connection position as a screening condition.
Where longitude and latitude coordinates are a coordinate system for geographic location representation, longitude represents the location of a point on the earth's surface in the east-west direction and latitude represents the location of a point on the earth in the north-south direction. The terminal equipment can determine longitude and latitude coordinates through a GPS (Global Positioning System ), specifically, a GPS receiver arranged in the terminal equipment receives signals sent by a plurality of GPS satellites, time T for sending the signals is arranged in each signal, and then the distance from the terminal equipment to each GPS satellite is calculated according to the difference between the time T and the received time, so that the longitude and latitude coordinates are obtained.
S103, determining distribution data of NTN network connection of the terminal equipment according to the historical connection position;
the distribution data of the NTN network connection of the terminal device may refer to data describing a distribution situation of the historically connected terminal device in the target area, and in particular, may be represented using a terminal device density. The terminal device density may refer to the number of terminal devices per unit area, and the unit is a number of terminal devices per square kilometer (per square kilometer).
The method for determining the distributed data of the terminal equipment for NTN network connection can adopt a mode of acquiring map information of a target area, dividing the target area according to the map information, determining area information of each area unit and each area unit, counting the number of historical connection positions in each area unit, and determining the distributed data of each area unit according to the area information and the number of the historical connection positions.
S104, for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data;
the target area may be an area where NTN cells need to be constructed to meet the communication requirements of the terminal devices in the area. The method for determining the number of the multi-beam cells to be constructed in the current target area can adopt a method for determining the beam center position according to the distribution data, and the number of the obtained beam centers is the number of the multi-beam cells.
The signal quality requirement may refer to the power strength in watts (W) or decibels (dBm) of a satellite signal that the beam center location of the beam cell expects to receive. The signal quality requirements of each beam cell may be determined by using a connection request type according to the central position of each beam and historical connection data in the beam cell.
And S105, determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement.
The power information of the beam may refer to the power level at which the antenna element transmits satellite signals, i.e. the beam is transmitted, representing the intensity of electromagnetic energy radiated by the antenna element to the surrounding environment, in units of watts (W) or decibels of watts (dBm).
The real-time position of the satellite is obtained, and the power information of the beam can be calculated according to the beam center position of the beam cell, the signal quality requirement of the beam cell and the real-time position of the satellite. The real-time position of the satellite can comprise longitude and latitude coordinates and the ground altitude of the satellite, and the real-time position of the satellite is stored in a satellite database connected with the NTN server; the satellite database is a collection storing satellite related information including an identifier of a satellite, orbit information, operating state information, and the like.
Optionally, the moving speed of the satellite may be obtained by accessing a satellite database, and according to the moving speed of the satellite and the rotation speed of the earth, the angular speed of the antenna element corresponding to the beam is calculated, and the antenna element adjusts the transmitting direction of the beam in real time at the determined angular speed, so that the beam cell can be relatively stationary with the earth surface, and further, the duration of coverage of the beam cell in the target area is maximized.
In the embodiment of the application, historical connection data of NTN network connection is obtained; determining a historical connection position of the terminal equipment for connection according to the historical connection data; determining distribution data of the terminal equipment for NTN network connection according to the historical connection position; for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data; and determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement. According to the NTN cell construction method based on the use requirement data, the number and the signal quality requirements of the multi-beam cells are determined, and the power information of each beam is further determined, so that the satellite can be helped to adjust the emitted power of each beam, the signal quality requirements of each terminal device in a target area are met, and the construction reliability of the multi-beam NTN cell is improved.
Example two
Fig. 2 is a flow chart of an NTN cell construction method based on usage requirement data according to a second embodiment of the present application. The scheme makes better improvement on the embodiment, and the specific improvement is as follows: before determining the distribution data of the terminal equipment for the NTN network connection according to the historical connection position, the method further comprises: acquiring map information of a target area; correspondingly, the determining the distribution data of the terminal equipment for performing the NTN network connection according to the historical connection position includes: and determining distribution data of the terminal equipment for NTN network connection according to the historical connection position and the map information.
As shown in fig. 2, the method specifically comprises the following steps:
s201, acquiring historical connection data of NTN network connection;
s202, determining the historical connection position of the terminal equipment for connection according to the historical connection data;
s203, acquiring map information of a target area;
the map information may be a plane or a stereoscopic graphic tool for describing the target area, and may include information about each position in the target area, and further, the information about each position may include longitude and latitude coordinates of the position, an area unit name to which the position belongs, and the like.
Map information data of a target area can be acquired by accessing a GIS (Geographic Information System ). Among them, a GIS system is a system for collecting, storing, managing, and analyzing geographical data.
S204, determining distribution data of the terminal equipment for NTN network connection according to the historical connection position and the map information.
The method for determining the distributed data of the terminal equipment for NTN network connection can adopt a mode of dividing a target area according to map information, determining each area unit and area information of each area unit, counting the number of historical connection positions in each area unit, and determining the distributed data of each area unit according to the area information and the number of the historical connection positions.
In this technical solution, optionally, determining, according to the historical connection location and the map information, distribution data of NTN network connection performed by the terminal device includes:
dividing a target area according to map information, and determining each area unit and area information of each area unit;
counting the number of historical connection positions in each area unit;
and determining the distribution data of each area unit according to the area information and the number of the historical connection positions.
The area unit may be an area of a smaller area that belongs to the target area. The dividing criteria of the area units may be determined according to the area size of the target area, where the larger the area of the target area is, the larger the area of the obtained area unit is, for example, the target area is a city, and the area unit may be a street area or a residential district.
By using the GIS tool or the map editing tool, the longitude and latitude coordinates of each region unit and each position on the boundary of each region unit can be determined by dividing the region units according to the dividing criteria of the region units, and further, the area information of the region units can be calculated according to the longitude and latitude coordinates of each position on the boundary of each region unit. The area information of the area unit may refer to a surface size of a geographic space covered by the area unit, and a unit may be square kilometers (km 2); common GIS tools and Map editing tools include ArcGIS, QGIS, google Earth Pro, mapInfo Professional, autoCAD Map 3D, and the like.
The method of counting the number of the historical connection positions in each area unit can adopt a mode of marking points in the map information of the target area according to the historical connection positions, determining the marking points in each area unit according to the historical connection positions and longitude and latitude coordinates of each position on the boundary of each area unit, and counting the number of the marking points in each area unit.
The number of the historical connection positions in the current area unit is divided by the area information of the current area unit, so that the terminal equipment density of the current area unit, namely the distribution data of the current area unit, can be calculated.
The method has the advantages that the distribution data of the NTN network connection of the terminal equipment is determined according to the historical connection position and the map information, an accurate data basis can be provided for the determination of the beam cell, and therefore the rationality and the reliability of the beam cell construction are improved.
In this technical solution, optionally, after determining the distribution data of the area unit according to the area information and the number of the historical connection positions, the method further includes:
and establishing a distribution model of the terminal equipment for NTN network connection according to the map information and the distribution data of each area unit.
The distribution model may be a three-dimensional surface in a spatial rectangular coordinate system with longitude as the x-axis, latitude as the y-axis, and terminal equipment density as the z-axis. The central position of the area unit is determined according to longitude and latitude coordinates of each position on the boundary of the area unit, punctuation is carried out in the space rectangular coordinate system according to the central position of the area unit and distribution data of the area unit, and finally a fitting algorithm is used for fitting the punctuation, so that a three-dimensional curved surface can be obtained, and establishment of a distribution model for NTN network connection of terminal equipment is realized.
The objective of the fitting algorithm is to find a function or model that has the best fit over a given set of data points. Common fitting algorithms may include least squares, polynomial fitting, curve fitting, linear regression, and nonlinear regression. Specifically, the least squares method is a widely used fitting algorithm that determines a best fit curve or surface by minimizing the sum of squares of residuals between data points and a fitting function; polynomial fitting approximates the data points by a polynomial function, which may be first order (straight line fitting), second order (quadratic curve fitting) or higher; curve fitting is the process of fitting a curve or curved surface over a given data point; the linear regression is used for establishing a linear relation model, and a fitting function is assumed to be a linear combination of input variables, and a best fitting coefficient is determined by minimizing the sum of squares of residual errors between a predicted value and an actual observed value; nonlinear regression is used to build a nonlinear relationship model by minimizing the sum of squares of residuals between predicted and actual observed values to determine the best fit coefficients.
The method has the advantages that the distribution situation of the NTN network connection of the terminal equipment can be more visual by establishing the distribution model of the NTN network connection of the terminal equipment, and a direct function model calculation basis is provided for the subsequent determination of the beam center position.
S205, for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data;
s206, determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement.
The method has the advantages that the map information of the target area is obtained, and data operation can be directly carried out on the map information of the target area, so that the step of determining distributed data of the terminal equipment for NTN network connection is simplified, and the efficiency is improved.
Optionally, the time interval of 24 hours a day can be divided, so as to obtain the distribution data and the distribution model of the NTN network connection of the terminal equipment in each time interval, help to analyze the change condition of the distribution data in the day, and accurately meet each communication requirement in the target area by adjusting the beam cell (namely, the antenna element corresponding to the beam cell) in real time according to the change condition of the distribution data in the day.
Example III
Fig. 3 is a flow chart of an NTN cell construction method based on usage requirement data according to a third embodiment of the present application. The scheme makes better improvement on the first embodiment, and the specific improvement is as follows: for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data, wherein the method comprises the following steps: for the current target area, determining the number of multi-beam cells and the central position of each beam according to the distribution data; and determining the signal quality requirement of each beam cell according to the central position of each beam and the connection request type of the historical connection data in the beam cell.
As shown in fig. 3, the method specifically comprises the following steps:
s301, acquiring historical connection data of NTN network connection;
s302, determining the historical connection position of the terminal equipment for connection according to the historical connection data;
s303, determining distribution data of NTN network connection of the terminal equipment according to the historical connection position;
s304, for the current target area, determining the number of multi-beam cells and the central position of each beam according to the distribution data;
The beam center position may refer to a center position of a beam cell coverage area corresponding to the beam.
The number of the multi-beam cells and the central position of each beam can be determined by calculating the maximum value point of a distribution model of the terminal equipment for NTN network connection, wherein the longitude and latitude coordinates of the obtained maximum value point are the central positions of the beams, and the number of the maximum value point is the number of the multi-beam cells.
The maximum point is a special point on the function image, and the function value obtained by the maximum point is the largest in the neighborhood of the maximum point. The mode of calculating the maximum value point of the distribution model of the NTN network connection by the terminal equipment can be adopted to calculate the first order partial derivative of the distribution model about the independent variable z (the density of the terminal equipment), find the point with the first order partial derivative value of 0, calculate the second order partial derivative of the independent variable z, and if the value of the point with the first order partial derivative value of 0 in the second order partial derivative is smaller than 0, the point is the maximum value point.
S305, determining the signal quality requirement of each beam cell according to the central position of each beam and the connection request type of the historical connection data in the beam cell;
the connection request type may be a classification result obtained by classifying according to the communication connection purpose of the terminal device, and may include data communication, voice communication, video communication, iot (Interference over Thermal, interference noise) connection, mobile application, emergency communication, and the like. Depending on the type of connection request, the signal quality requirements of the terminal device for the satellite signals may be correspondingly different, e.g. lower signal quality requirements may be required for voice communication and higher signal quality requirements may be required for emergency communication.
By taking the connection request type as a screening condition and screening the historical connection data, the connection request type of each terminal device can be determined, the number of the connection request types of the beam center position is counted, and the connection request type with the largest number is determined as the connection request type of the beam cell.
The method for determining the signal quality requirement of each beam cell can be used for determining the initial signal quality requirement of the beam center position according to the distribution data of the beam center position and the connection request type of the historical connection data in the beam cell, determining the initial signal quality requirement of each position in the coverage area of the beam cell according to the initial signal quality requirement and a predetermined attenuation model, and determining the actual signal quality requirement of the beam cell according to the area threshold of the connection request type meeting the historical connection data in the coverage area of the beam cell.
In this technical solution, optionally, determining the signal quality requirement of each beam cell according to the central position of each beam and the connection request type of the historical connection data in the beam cell includes:
determining an initial signal quality requirement of the beam center position according to the distribution data of the beam center position and the connection request type of the historical connection data in the beam cell;
Determining the initial signal quality requirements of all positions in the coverage area of a beam cell according to the initial signal quality requirements and a predetermined attenuation model;
and determining the actual signal quality requirement of the beam cell according to the area threshold value of the connection request type meeting the historical connection data in the coverage area of the beam cell.
The initial signal quality requirement of the beam center position can be determined by substituting the distribution data of the beam center position into a calculation formula of the signal quality requirement. The calculation formula of the signal quality requirement is as follows:
wherein a is a scaling factor for adjusting the overall signal quality requirement level, which can be calculated based on the connection request type of the historical connection data; b, controlling the increasing rate of the signal quality requirement along with the distribution data of the beam center position, namely the sensitivity degree of the signal quality requirement to the distribution data of the beam center position, wherein the connection request type of the historical connection data also influences the value of the parameter b; e refers to a natural logarithmic constant, approximately equal to 2.71828.
The attenuation model may be a function model of signal quality attenuation from the beam center to the beam edge, and may be a gaussian attenuation model, a linear attenuation model, or an exponential attenuation model.
Specifically, the gaussian attenuation model refers to that signal quality is gaussian attenuated along the beam radiation direction, that is, from the beam center, the signal intensity requirement is gradually reduced, and the gaussian attenuation model conforms to a gaussian distribution curve, and the formula is as follows:
wherein f (d) refers to the signal intensity requirement at the position with the distance d, A refers to the signal intensity requirement of the beam center position, d refers to the distance between the current position and the beam center position, d0 refers to the beam center position, sigma refers to the standard deviation of attenuation, and the rate of attenuation is controlled;
the linear attenuation model refers to the linear attenuation of the signal quality along the beam radiation direction, i.e. the signal strength requirement gradually decreases at a constant rate from the beam center, where the formula is:
wherein f (d) refers to the signal strength requirement at the distance d, A refers to the signal strength requirement at the beam center position, B refers to the signal attenuation amount per unit distance, and d refers to the distance between the current position and the beam center position;
the exponential decay model means that the signal quality decays exponentially, i.e. the signal intensity decreases exponentially from the beam center, the decreasing rate increases gradually, the formula is:
where f (d) refers to the signal strength requirement at a distance d, a refers to the signal strength requirement at the beam center, B refers to the decay rate, and d refers to the distance between the current position and the beam center.
By calculating the distance between the current position and the beam center position and substituting the obtained distance into the attenuation model, the initial signal quality requirement of the current position can be determined. The coverage area of the beam cell is defined by the range surrounded by the points with the attenuation model function value of 0.
The area threshold of the connection request type of the historical connection data may refer to a ratio of an actual coverage radius requirement corresponding to the connection request type to a beam cell radius, which may be expressed in terms of a percentage. The method for determining the actual signal quality requirement of the beam cell can be used for transforming the initial signal quality requirement of the beam center position according to the area threshold value to obtain the actual signal quality requirement of the beam cell.
The advantage of this arrangement of the scheme is that by determining the signal quality requirements of each beam cell based on the location of the center of each beam and the connection request type of the historical connection data within the beam cell, a data basis can be provided for determining the transmit power of the beam to meet the signal quality requirements of different connection request types and densities.
In this technical solution, optionally, determining the actual signal quality requirement of the beam cell according to the area threshold value of the connection request type meeting the historical connection data in the coverage area of the beam cell includes:
Determining an area threshold of a beam cell according to the connection request type of the historical connection data;
and transforming the initial signal quality requirement of the beam center position according to the area threshold value to obtain the actual signal quality requirement of the beam cell.
The area threshold of the connection request type of the historical connection data may refer to a ratio of an actual required coverage radius corresponding to the connection request type to a beam cell radius, and may be expressed by a percentage. Different connection request types correspond to different area thresholds, for example, emergency communication needs to immediately receive each connection request in the area to find and solve the accident in time, so the area threshold corresponding to the emergency communication can be 100%; in the area adjacent to the coverage edge of the beam cell, the terminal device has a lower density and is less likely to perform voice communication or has a smaller proportion, so that the area threshold corresponding to voice communication may be 50%.
The area threshold may be set by a professional according to actual communication requirements of each connection request type, and stored in association with the connection request type. And inquiring the confirmed connection request type, so as to obtain the area threshold corresponding to the connection request type.
According to the different types of connection requests, the requirements of the terminal equipment on the lower signal quality limit are correspondingly different, for example, the emergency communication needs a higher lower signal quality limit to perform the fastest feedback; the amount of data required for voice communication is small and a lower signal quality limit may be required.
The lower limit of the signal quality can be set by a professional according to the actual communication requirements of each connection request type and is associated with the connection request type for storage. And inquiring the confirmed connection request type, so as to acquire the lower limit of the signal quality corresponding to the connection request type.
And comparing the signal quality lower limit of each position in the area threshold with the initial signal quality requirement, and determining the acquired signal quality lower limit as the actual signal quality requirement of the current position if the signal quality lower limit of the current position is larger than the initial signal quality requirement.
Further, a position with the largest difference between the actual signal quality requirement and the initial signal quality requirement is obtained, and the actual signal quality requirement of the position is substituted into the attenuation model to determine the actual signal quality requirement of the beam center position.
The method has the advantages that the initial signal quality requirement of the beam center position is transformed according to the area threshold value, the actual signal quality requirement of the beam cell is obtained, and the energy consumption of the satellite transmitting signal can be reduced on the basis that the signal quality requirements of all positions in the area threshold value can be met.
And S306, determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement.
The advantage of this arrangement of the scheme is that the maximum points represent dense areas of terminal devices, and the maximum points are determined as beam center positions, so that communication resources can be effectively utilized to provide wider signal coverage and better signal quality.
Example IV
Fig. 4 is a schematic structural diagram of an NTN cell construction apparatus based on usage requirement data according to a fourth embodiment of the present application. As shown in fig. 4, the apparatus includes:
a historical connection acquisition module 410, configured to acquire historical connection data of the NTN network connection;
a historical position determining module 420, configured to determine a historical connection position of a terminal device that performs connection according to the historical connection data;
a distributed data determining module 430, configured to determine distributed data of NTN network connection of the terminal device according to the historical connection location;
a beam cell determining module 440, configured to determine, for a current target area, the number of multi-beam cells that need to be constructed in the current target area and a signal quality requirement of each beam cell according to the distribution data;
A power information determining module 450, configured to determine power information of each beam in the multi-beam cell according to the number of multi-beam cells and the signal quality requirement.
In this embodiment of the present application, a historical connection obtaining module is configured to obtain historical connection data of NTN network connection; a history position determining module, configured to determine a history connection position of a terminal device that performs connection according to the history connection data; the distributed data determining module is used for determining distributed data of NTN network connection of the terminal equipment according to the historical connection position; the beam cell determining module is used for determining the number of the multi-beam cells required to be constructed in the current target area and the signal quality requirements of the beam cells according to the distribution data for the current target area; and the power information determining module is used for determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement. According to the NTN cell construction device based on the use requirement data, the number and the signal quality requirements of the multi-beam cells are determined, and the power information of each beam is further determined, so that the satellite can be helped to adjust the emitted power of each beam, the signal quality requirements of each terminal device in a target area are met, and the construction reliability of the multi-beam NTN cell is improved.
The NTN cell construction device based on the usage requirement data in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.
The NTN cell construction device based on the usage requirement data in the embodiments of the present application may be a device with an operating system. The operating system may be an Android operating system, an IOS operating system, or other possible operating systems, which is not specifically limited in the embodiments of the present application.
The NTN cell construction device based on the usage requirement data provided in the embodiment of the present application can implement each process of the first to third embodiments, and in order to avoid repetition, the description is omitted here.
Example five
As shown in fig. 5, the embodiment of the present application further provides an electronic device 500, including a processor 501, a memory 502, and a program or an instruction stored in the memory 502 and capable of being executed on the processor 501, where the program or the instruction implements each process of the NTN cell construction apparatus embodiment based on the usage requirement data when executed by the processor 501, and the process can achieve the same technical effect, and is not repeated herein.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.
Example six
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the embodiment of the NTN cell construction device based on the usage requirement data are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
Example seven
The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is configured to run a program or an instruction, implement each process of the NTN cell construction device embodiment based on the usage requirement data, and achieve the same technical effect, so as to avoid repetition, and not be repeated here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
The foregoing description is only of the preferred embodiments of the present application and the technical principles employed. The present application is not limited to the specific embodiments described herein, but is capable of numerous obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the present application. Therefore, while the present application has been described in connection with the above embodiments, the present application is not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (10)
1. An NTN cell construction method based on usage demand data, the method comprising:
acquiring historical connection data of NTN network connection;
determining a historical connection position of the terminal equipment for connection according to the historical connection data;
determining distribution data of the terminal equipment for NTN network connection according to the historical connection position;
for a current target area, determining the number of multi-beam cells to be constructed in the current target area and the signal quality requirement of each beam cell according to the distribution data;
and determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement.
2. The NTN cell construction method based on usage requirement data according to claim 1, wherein before determining distribution data of NTN network connection by a terminal device according to the historical connection location, the method further comprises:
acquiring map information of a target area;
correspondingly, the determining the distribution data of the terminal equipment for performing the NTN network connection according to the historical connection position includes:
and determining distribution data of the terminal equipment for NTN network connection according to the historical connection position and the map information.
3. The NTN cell construction method based on usage requirement data according to claim 2, wherein determining distribution data of NTN network connection by a terminal device according to the historical connection location and the map information includes:
dividing a target area according to map information, and determining each area unit and area information of each area unit;
counting the number of historical connection positions in each area unit;
and determining the distribution data of each area unit according to the area information and the number of the historical connection positions.
4. The NTN cell construction method based on usage demand data according to claim 3, wherein after determining distribution data of area units according to the area information and the number of historic connection locations, the method further comprises:
And establishing a distribution model of the terminal equipment for NTN network connection according to the map information and the distribution data of each area unit.
5. The NTN cell construction method based on usage requirement data according to claim 1, wherein for a current target area, determining the number of multi-beam cells that the current target area needs to construct and the signal quality requirement of each beam cell according to the distribution data includes:
for the current target area, determining the number of multi-beam cells and the central position of each beam according to the distribution data;
and determining the signal quality requirement of each beam cell according to the central position of each beam and the connection request type of the historical connection data in the beam cell.
6. The NTN cell construction method based on usage requirement data according to claim 5, wherein determining the signal quality requirement of each beam cell according to the beam center position and the connection request type of the historical connection data in the beam cell comprises:
determining an initial signal quality requirement of the beam center position according to the distribution data of the beam center position and the connection request type of the historical connection data in the beam cell;
Determining the initial signal quality requirements of all positions in the coverage area of a beam cell according to the initial signal quality requirements and a predetermined attenuation model;
and determining the actual signal quality requirement of the beam cell according to the area threshold value of the connection request type meeting the historical connection data in the coverage area of the beam cell.
7. The NTN cell construction method based on usage requirement data according to claim 6, wherein determining the actual signal quality requirement of the beam cell according to the area threshold of the connection request type satisfying the historical connection data within the coverage area of the beam cell includes:
determining an area threshold of a beam cell according to the connection request type of the historical connection data;
and transforming the initial signal quality requirement of the beam center position according to the area threshold value to obtain the actual signal quality requirement of the beam cell.
8. An NTN cell construction apparatus based on usage demand data, the apparatus comprising:
the historical connection acquisition module is used for acquiring historical connection data of the NTN network connection;
a history position determining module, configured to determine a history connection position of a terminal device that performs connection according to the history connection data;
The distributed data determining module is used for determining distributed data of NTN network connection of the terminal equipment according to the historical connection position;
the beam cell determining module is used for determining the number of the multi-beam cells required to be constructed in the current target area and the signal quality requirements of the beam cells according to the distribution data for the current target area;
and the power information determining module is used for determining the power information of each wave beam in the multi-wave beam cell according to the number of the multi-wave beam cells and the signal quality requirement.
9. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the NTN cell construction method according to any of claims 1-7 based on usage demand data.
10. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the NTN cell construction method based on usage requirement data according to any one of claims 1-7.
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