CN117833998B - Ground cell determining method, device, equipment and medium based on ground station - Google Patents
Ground cell determining method, device, equipment and medium based on ground station Download PDFInfo
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Abstract
The application discloses a ground cell determining method, device, equipment and medium based on a ground station, and belongs to the technical field of wireless communication networks. The method comprises the following steps: acquiring the current position of the terminal equipment; determining a control area of a ground station to which the current position belongs to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations; sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell; determining a target satellite cell according to the satellite cell information; and establishing connection with the target satellite cell. According to the technical scheme, the target satellite cell is determined according to the satellite cell information stored by the ground station, so that the residence time of the target satellite cell can meet the communication requirement of the terminal equipment, the data calculation amount is reduced, and the energy consumption of the terminal equipment is reduced.
Description
Technical Field
The application belongs to the technical field of wireless communication networks, and particularly relates to a ground cell determining method, device, equipment and medium based on a ground station.
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. The NTN (Non-TERRESTRIAL NETWORK, non-ground network) uses satellite, airship or unmanned plane and other Non-ground platforms to overcome these limitations and realize communication coverage in the global scope.
The prior art can support the terminal equipment to carry out the resolving according to the ephemeris information of the satellite, and determine the satellite cell for communication connection according to the resolving result. This approach requires some computational and signal processing power, and for some low cost terminal devices there may be situations where performance and power consumption are not as desirable. Therefore, how to reduce the calculation amount on the basis of ensuring the selection rationality of the satellite cell is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the application aims to provide a ground cell determining method, a ground cell determining device, ground cell determining equipment and ground cell determining media based on a ground station, and aims to enable residence time of a target satellite cell to meet communication requirements of terminal equipment, reduce data calculation amount and reduce energy consumption of the terminal equipment.
In a first aspect, an embodiment of the present application provides a ground cell determining method based on a ground station, where the method includes:
Acquiring the current position of the terminal equipment;
determining a control area of a ground station to which the current position belongs to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
Sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
Determining a target satellite cell according to the satellite cell information;
And establishing connection with the target satellite cell.
In a second aspect, an embodiment of the present application provides a ground cell determining apparatus based on a ground station, the apparatus including:
The terminal position acquisition module is used for acquiring the current position of the terminal equipment;
A control area determining module, configured to determine a control area of a ground station to which the current position belongs, so as to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
The cell information receiving module is used for sending an information acquisition request to the ground station and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
The target cell determining module is used for determining a target satellite cell according to the satellite cell information;
And the target cell connection module is used for establishing connection with the target satellite cell.
In a third aspect, an embodiment of the present application provides an electronic device, including 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 perform the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides 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, the current position of the terminal equipment is obtained; determining a control area of a ground station to which the current position belongs to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations; sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell; determining a target satellite cell according to the satellite cell information; and establishing connection with the target satellite cell. According to the ground cell determining method based on the ground station, the target satellite cell is determined according to the satellite cell information stored by the ground station, so that the residence time of the target satellite cell can meet the communication requirement of the terminal equipment, the data calculation amount is reduced, and the energy consumption of the terminal equipment is reduced.
Drawings
Fig. 1 is a schematic flow chart of a ground cell determining method based on a ground station according to a first embodiment of the present application;
fig. 2 is a flow chart of a ground cell determining method based on a ground station according to a second embodiment of the present application;
fig. 3 is a schematic flow chart of a ground cell determining method based on a ground station according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of a ground cell determining device based on a ground station 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
In order to make the objects, technical solutions and advantages of the present application more apparent, the following detailed description of specific embodiments of the present application 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 are 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.
The technical solutions of 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, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of 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 elements 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 are not limited to the number of objects, such as 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 ground cell determining method, the device, the equipment and the medium based on the ground station provided by the embodiment of the application are described in detail through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Example 1
Fig. 1 is a flowchart of a ground cell determining method based on a ground station according to a first embodiment of the present application. As shown in fig. 1, the method specifically comprises the following steps:
s101, acquiring the current position of terminal equipment;
Firstly, the application is suitable for the scene that the terminal equipment selects the satellite cell to establish NTN connection. Based on the above usage scenario, it can be appreciated that the execution subject of the present application may be a terminal device. Specifically, the acquisition of the current position, the receiving of the satellite cell information, the determining of the target satellite cell and the like can be performed by the terminal equipment, the terminal equipment establishes the NTN connection with the target satellite cell, and the target satellite cell meets the communication requirement of the terminal equipment.
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.
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. The satellite cell refers to a communication unit established in the NTN.
The current location of the terminal device may refer to the current longitude and latitude coordinates of the terminal device. The current position of the terminal device may be obtained by using a GPS (Global Positioning System ) receiver built in the terminal device to receive signals sent by a plurality of GPS satellites, and according to a time difference between a sending time and a receiving time of each signal, a distance from the terminal device to each GPS satellite may be calculated, so as to obtain the current position of the terminal device.
S102, determining a control area of a ground station to which the current position belongs so as to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
ground stations refer to the ground facilities used to communicate with satellites, and in NTNs, ground stations function as bridges connecting satellites and terminal equipment. The control region of the ground station may refer to the coverage area in which the ground station signals.
By comparing the current position of the terminal device with the control areas of the ground stations, the control area of the ground station where the current position of the terminal device is located can be determined, thereby determining the ground station to which the terminal device is currently connected.
The distribution location of the ground station may refer to the latitude and longitude coordinates of the ground station. The method for determining the control area of the ground station can adopt a mode of acquiring signal transmission parameters of the ground station, determining the coverage radius of the ground station according to the signal transmission parameters, and determining the control area according to the distribution position and the coverage radius of the ground station.
In this technical solution, optionally, before determining the control area of the ground station to which the current position belongs, the method further includes:
acquiring signal transmission parameters of a ground station;
determining a coverage radius of the ground station according to the signal transmission parameters;
Correspondingly, determining the control area of the ground station to which the current position belongs comprises the following steps:
and determining a control area according to the distribution position of the ground stations and the coverage radius, and identifying the control area of the ground station to which the current position belongs.
The signal transmission parameters of the ground station may be variables describing the effect of the ground station transmitting the signal, and may include transmit power and antenna gain. The transmitting power refers to signal power output by the ground station, and represents the energy output level of the ground station transmitting equipment, wherein the unit is watt (W); the antenna gain refers to the ratio of the power densities of signals generated by an actual antenna and an ideal radiating element at the same point in space, under the condition that the transmitted powers are equal. The signal transmission parameters of the ground station are generally stored in the ground station, and are shared with other ground stations, satellites and terminal devices, and can be directly inquired and acquired by the terminal devices.
The coverage radius of a ground station may refer to the radius of the circular area covered by the ground station's transmitted signal. According to a calculation formula of the coverage radius, the coverage radius of the ground station can be calculated, wherein the calculation formula is as follows:。
Where R represents a coverage radius, P represents a transmission power, G represents an antenna gain, and S represents a reception sensitivity of the reception apparatus. The reception sensitivity may be the minimum signal reception power at which the reception device can correctly use the useful signal, and may be substituted for an average value of the reception sensitivities of the respective terminal devices, or may be substituted for a specific value of the reception sensitivity of the terminal device in the present embodiment.
The control area function can be determined by substituting the distribution position of the ground station and the coverage radius into the basic formula of the circle. Wherein the control area function is: . Where x represents latitude, a represents latitude coordinates in the distribution position of the ground station, y represents longitude, b represents longitude coordinates in the distribution position of the ground station, and R represents a coverage radius.
The method of identifying the control area of the ground station to which the current position belongs may be a method of substituting the current position (x, y) of the terminal device into the control area function of each control area, and if the substituted control area function is true, identifying that the current position belongs to the control area of the ground station.
The advantage of this arrangement is that by determining the coverage radius of the ground station based on the signal transmission parameters of the ground station and determining the control area based on the distribution position of the ground stations and the coverage radius, the control area of each ground station can be determined, providing a data reference for determining the ground station to which the terminal device is currently connected.
S103, sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
The information acquisition request may be information or a command to the ground station to acquire satellite cell information stored by the ground station. The terminal device may send the request to the ground station using suitable communication protocols and network techniques.
The satellite cell information may refer to information describing a satellite cell, and may include start time information and end time information of a satellite cell residence. The resident starting time information may refer to a time when the satellite cell moves to the current position of the terminal device, and the boundary of the satellite cell overlaps with the current position of the terminal device; the end time information of the residence may refer to a time when the satellite cell is far from the current location of the terminal device, and the boundary of the satellite cell overlaps with the current location of the terminal device.
After receiving the information acquisition request, the ground station sorts the satellite cell information into a data packet, and sends the data packet to the terminal equipment as a response of the information acquisition request. The communication module of the terminal equipment is responsible for receiving satellite cell information fed back by the ground station.
S104, determining a target satellite cell according to the satellite cell information;
the target satellite cell may refer to the satellite cell that ultimately selects and establishes the connection.
The method for determining the target satellite cell may adopt a method of reading at least one satellite cell information stored by the ground station and corresponding to the current position, obtaining start time information and end time information of residence of the satellite cell in each satellite cell information, determining the satellite cell as the target satellite cell if the current time belongs to the first third of a time span of the start time information and the end time information, and determining the satellite cell as the target satellite cell if the current time does not exist in the satellite cell information of which the current time belongs to the first third of the time span of the start time information and the end time information, wherein the current time is in a range of the time span, and a time difference between the end time information of the satellite cell information and the current time is the longest.
S105, establishing connection with the target satellite cell.
The terminal device sends a registration request to the target satellite cell and performs a registration procedure to establish a connection with the target satellite cell. The registration process includes establishing connection with a target cell, performing identity verification, acquiring network service, and the like.
In the embodiment of the application, the current position of the terminal equipment is obtained; determining a control area of a ground station to which the current position belongs; wherein the control region of the ground station is determined based on the distributed locations of the ground stations; sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell; determining a target satellite cell according to the satellite cell information; and establishing connection with the target satellite cell. According to the ground cell determining method based on the ground station, the target satellite cell is determined according to the satellite cell information stored by the ground station, so that the residence time of the target satellite cell can meet the communication requirement of the terminal equipment, the data calculation amount is reduced, and the energy consumption of the terminal equipment is reduced.
Example two
Fig. 2 is a flowchart of a ground cell determining method based on a ground station according to a second embodiment of the present application. The scheme makes better improvement on the embodiment, and the specific improvement is as follows: determining a target satellite cell according to the satellite cell information, including: reading at least one piece of satellite cell information stored by a ground station and corresponding to the current position; and determining a satellite cell which accords with a preset selection rule with the current time as a target satellite cell in at least one piece of satellite cell information of the current position.
As shown in fig. 2, the method specifically comprises the following steps:
s201, acquiring the current position of terminal equipment;
S202, determining a control area of a ground station to which the current position belongs to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
S203, sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
S204, reading at least one piece of satellite cell information corresponding to the current position and stored by a ground station;
The satellite cell corresponding to the current location may refer to a satellite cell whose coverage area has covered the current location. And comparing the coverage area of each satellite cell with the current position, and if the current position is positioned in the coverage area of the satellite cell, reading the satellite cell information of the satellite cell.
S205, determining a satellite cell which accords with a preset selection rule with the current time in at least one piece of satellite cell information of the current position as a target satellite cell;
The current time may refer to a current system time of the terminal device, which is synchronized with the world standard time.
The preset selection rules describe logic criteria for determining the target satellite cell. The method for determining the target satellite cell may adopt a method for acquiring the start time information and the end time information of the residence of the satellite cell in the information of each satellite cell, and if the current time of the satellite cell belongs to the first third of the time span of the start time information and the end time information, determining that the satellite cell meets the preset selection rule and determining that the satellite cell is the target satellite cell.
In this technical solution, optionally, the preset selection rule includes:
acquiring initial time information and end time information of satellite cell residence in the information of each satellite cell;
And if the current time belongs to the first third of the time span of the starting time information and the ending time information, determining that the preset selection rule is met.
The satellite cell information may be stored in the form of a relational database table, the satellite cell identification, the start time information, and the end time information may be fields of the relational database table, and the satellite cell identification may be a primary key of the relational database table. Wherein, the relational database can be a database which adopts a relational model to organize data, and the data is stored in the form of rows and columns so as to be convenient for users to understand; a field may be a header of each column in the data table; the primary key may be a field or combination of fields that can uniquely represent each record in the data table.
And inquiring the relational database table by taking the satellite cell identification of the satellite cell corresponding to the current position as an inquiry condition, so that the initial time information and the end time information of the residence of the satellite cell in the satellite cell information corresponding to the current position can be acquired.
The time span may be a time difference between the end time information and the start time information. According to the time span and the starting time information, the first third time point can be calculated, and the formula is as follows:。
comparing the current time with the starting time information and the first third time point, and if the current time is after the starting time information and before the first third time point, determining that the current time meets the preset selection rule.
The following is an example code for determining whether a satellite cell meets a preset selection rule:
import datetime
def calculate_one_third_time(start_time, time_span):
one third of the calculated time span
one_third_time = start_time + datetime.timedelta(seconds=time_span / 3)
return one_third_time
def check_target_satellite(start_time, end_time, current_time):
Calculation of the first third time point #
one_third_time = calculate_one_third_time(start_time, (end_time - start_time).total_seconds())
# Comparing the current time with the start time information and the first third time point
if start_time<current_time<one_third_time:
return True
else:
return False
The method and the device have the advantages that satellite cells with longer residence time can be selected as target satellite cells by determining the satellite cells with the current time belonging to the first third of the time span of the starting time information and the ending time information to be in accordance with the preset selection rule, and the terminal equipment is prevented from frequently switching the satellite cells.
In this technical solution, optionally, in at least one piece of satellite cell information of the current position, determining a satellite cell that accords with a preset selection rule with the current time as a target satellite cell, and further including
If the satellite cell information of the first third of the time span of the starting time information and the ending time information does not exist, the satellite cell information is used as a target satellite cell, wherein the current time is in the range of the time span, and the time difference between the ending time information of the satellite cell information and the current time is longest.
There is no satellite cell information whose current time belongs to the first third of the time span of the start time information and the end time information, indicating that the current time is after the first third point in time of all the satellite cell information.
Subtracting the current time from the end time information may determine a time difference between the end time information and the current time. By using the MAX () function, the longest time difference can be determined. Further, the satellite cell whose current time is before the start time information and whose time difference is the longest is determined as the target satellite cell. Wherein the MAX () function may be a function for finding the maximum value in the data set.
The method has the advantages that the satellite cell with the longest residence time at the current position can be selected as the target satellite cell by determining the satellite cell with the current time within the time span and the longest time difference between the ending time information and the current time as the target satellite cell, so that the terminal equipment is prevented from frequently switching the satellite cell.
S206, establishing connection with the target satellite cell.
The method has the advantage that the satellite cell meeting the communication duration requirement of the terminal equipment can be rapidly determined by determining the satellite cell meeting the preset selection rule with the current time as the target satellite cell.
Example III
Fig. 3 is a flowchart of a ground cell determining method based on a ground station 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: determining a target satellite cell according to the satellite cell information, including: reading interference parameters included in the satellite cell information; and determining a target satellite cell according to the signal intensity information of the satellite cell information and the interference parameters.
As shown in fig. 3, the method specifically comprises the following steps:
S301, acquiring the current position of the terminal equipment;
S302, determining a control area of the ground station to which the current position belongs so as to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
S303, sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
s304, reading interference parameters included in the satellite cell information;
The satellite cell information stored at the ground station may also include interference parameters for further determining the target satellite cell in the presence of a plurality of satellite cells that meet a preset selection rule.
The interference parameter may refer to a carrier-to-noise ratio of the satellite cell. The carrier-to-noise ratio is the ratio of signal power to noise power in decibels (dB). In a communication system, signals are transmitted through channels, and noise present in the channels can interfere with the transmission of the signals, thereby affecting the performance of the communication system. The larger the value of the carrier-to-noise ratio, the more pronounced the signal power versus noise power, and the better the signal quality.
By querying the relational database table with the satellite cell identification of the satellite cell corresponding to the current position as a query condition, the interference parameter in the satellite cell information corresponding to the current position can be obtained.
S305, determining a target satellite cell according to the signal intensity information of the satellite cell information and the interference parameters;
The satellite cell information stored at the ground station may also include signal strength information for further determining a target satellite cell in the presence of a plurality of satellite cells that meet a preset selection rule. The signal strength refers to the intensity of a signal sent by a satellite, and the unit is decibel (dB).
The method can set weights for the signal intensity information and the interference parameters according to the communication requirements of the terminal equipment, calculate the comprehensive evaluation score of the satellite cell according to the signal intensity information and the interference parameters in the satellite cell information and the corresponding weights, and select the satellite cell with the highest comprehensive evaluation score as a target satellite cell.
S306, establishing connection with the target satellite cell.
The method has the advantages that the target satellite cell is determined according to the signal intensity information of the satellite cell information and the interference parameters, and the communication quality of the terminal equipment can be improved on the basis of improving the residence time.
In this technical solution, optionally, determining the target satellite cell according to the signal strength information of each satellite cell information and the interference parameter includes:
Acquiring the number of terminal equipment in a control area, and determining a target spectrum frequency according to the number of the terminal equipment;
Analyzing satellite cell information stored by a ground station, and determining available spectrum frequency of each satellite cell information;
And determining a target satellite cell according to the available spectrum frequency, the target spectrum frequency and the signal strength information.
The ground station can count the number of the terminal devices in the control area and send the number to the terminal devices by receiving the communication requests sent by all the terminal devices in the control area, and the terminal devices receive the number data of the terminal devices sent by the ground station.
The target spectrum frequency may refer to a specific frequency range used by the terminal device in the communication process. In wireless communication, the frequency is a limited resource, which needs to be reasonably allocated and managed, it can be understood that the more the number of terminal devices, the more communication bandwidth and spectrum resources are needed, and the target spectrum frequency can be predicted according to the number of terminal devices.
The available spectrum frequencies refer to the radio spectrum ranges that can be used and allocated by the satellite cells and may be stored in the satellite cell information of the ground station.
The method for determining the target satellite cell may adopt a satellite cell with highest signal strength information as the target satellite cell from among satellite cells with available spectrum frequencies including the target spectrum frequency.
The method has the advantages that the communication quality of the terminal equipment can be improved on the basis of improving the residence time by determining the target satellite cell according to the available spectrum frequency, the target spectrum frequency and the signal intensity information.
Example IV
Fig. 4 is a schematic structural diagram of a ground cell determining device based on a ground station according to a fourth embodiment of the present application. As shown in fig. 4, the apparatus includes:
A terminal position obtaining module 410, configured to obtain a current position of a terminal device;
A control area determining module 420, configured to determine a control area of a ground station to which the current location belongs, so as to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
A cell information receiving module 430, configured to send an information acquisition request to the ground station, and receive satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
A target cell determining module 440, configured to determine a target satellite cell according to the satellite cell information;
a target cell connection module 450, configured to establish a connection with the target satellite cell.
In the embodiment of the application, a terminal position acquisition module is used for acquiring the current position of terminal equipment; a control area determining module, configured to determine a control area of a ground station to which the current position belongs, so as to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations; the cell information receiving module is used for sending an information acquisition request to the ground station and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell; the target cell determining module is used for determining a target satellite cell according to the satellite cell information; and the target cell connection module is used for establishing connection with the target satellite cell. According to the ground cell determining device based on the ground station, the target satellite cell is determined according to the satellite cell information stored by the ground station, so that the residence time of the target satellite cell can meet the communication requirement of the terminal equipment, the data calculation amount is reduced, and the energy consumption of the terminal equipment is reduced.
The ground cell determining device based on the ground station in the embodiment of the application can be a device, and can also 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 mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), etc., and the non-mobile electronic device may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, etc., and the embodiments of the present application are not limited in particular.
The ground cell determining device based on the ground station in the embodiment of the application can 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, and the embodiment of the present application is not limited specifically.
The ground cell determining device based on the ground station provided by the embodiment of the application can realize the processes of the first to third embodiments, and in order to avoid repetition, the description is omitted here.
Example five
As shown in fig. 5, an 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 by the processor 501, where the program or the instruction implements each process of the above-mentioned ground cell determining apparatus embodiment based on a ground station, and the process can achieve the same technical effect, and is not repeated herein for avoiding repetition.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device.
Example six
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned ground cell determining device embodiment based on a ground station, and can achieve the same technical effects, 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, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the ground cell determining device embodiment based on the ground station, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted 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 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 solution 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 (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to 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 having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
The foregoing description is only of the preferred embodiments of the application and the technical principles employed. The present application is not limited to the specific embodiments described herein, but is capable of numerous modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, while the application has been described in connection with the above embodiments, the application is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit of the application, the scope of which is set forth in the following claims.
Claims (6)
1. A ground cell determination method based on a ground station, the method comprising:
Acquiring the current position of the terminal equipment in a scene that the terminal equipment selects a satellite cell to establish NTN connection;
determining a control area of a ground station to which the current position belongs to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
Sending an information acquisition request to the ground station, and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
Determining a target satellite cell according to the satellite cell information; wherein the determination of the target satellite cell is performed by the terminal device;
Establishing a connection with the target satellite cell;
Before determining the control area of the ground station to which the current position belongs, the method further comprises:
acquiring signal transmission parameters of a ground station;
determining a coverage radius of the ground station according to the signal transmission parameters;
Correspondingly, determining the control area of the ground station to which the current position belongs comprises the following steps:
Determining a control area according to the distribution position of the ground stations and the coverage radius, and identifying the control area of the ground station to which the current position belongs;
the coverage radius of the ground station refers to the radius of a circular area covered by a transmission signal of the ground station, and according to a calculation formula of the coverage radius, the coverage radius of the ground station can be calculated, wherein the calculation formula is as follows: ；
Wherein R represents a coverage radius, P represents a transmitting power, G represents an antenna gain, and S represents a receiving sensitivity of the terminal equipment;
Wherein determining a target satellite cell according to the satellite cell information comprises:
reading at least one piece of satellite cell information stored by a ground station and corresponding to the current position;
determining a satellite cell which accords with a preset selection rule with the current time as a target satellite cell in at least one piece of satellite cell information of the current position;
Wherein, the preset selection rule comprises:
acquiring initial time information and end time information of satellite cell residence in the information of each satellite cell;
if the current time belongs to the first third of the time span of the starting time information and the ending time information, determining that the current time accords with a preset selection rule;
Wherein, in at least one piece of satellite cell information of the current position, determining the satellite cell which accords with the preset selection rule with the current time as the target satellite cell comprises the following steps:
if the satellite cell information of the first third of the time span of the starting time information and the ending time information does not exist, the satellite cell information is used as a target satellite cell, wherein the current time is in the range of the time span, and the time difference between the ending time information of the satellite cell information and the current time is longest.
2. The ground station-based terrestrial cell determining method according to claim 1, wherein, in the at least one piece of satellite cell information of the current position, after determining the satellite cell that meets the preset selection rule with the current time as the target satellite cell, the method further comprises:
Reading interference parameters included in the satellite cell information;
and determining a target satellite cell according to the signal intensity information of the satellite cell information and the interference parameters.
3. The ground station-based terrestrial-cell determining method of claim 2, wherein determining the target satellite cell based on the signal strength information of each satellite-cell information and the interference parameter, comprises:
Acquiring the number of terminal equipment in a control area, and determining a target spectrum frequency according to the number of the terminal equipment;
Analyzing satellite cell information stored by a ground station, and determining available spectrum frequency of each satellite cell information;
And determining a target satellite cell according to the available spectrum frequency, the target spectrum frequency and the signal strength information.
4. A ground cell determining apparatus based on a ground station, the apparatus comprising:
the terminal position acquisition module is used for acquiring the current position of the terminal equipment in a scene that the terminal equipment selects a satellite cell to establish NTN connection;
A control area determining module, configured to determine a control area of a ground station to which the current position belongs, so as to determine a connected ground station; wherein the control region of the ground station is determined based on the distributed locations of the ground stations;
The cell information receiving module is used for sending an information acquisition request to the ground station and receiving satellite cell information fed back by the ground station; the satellite cell information comprises start time information and end time information of the residence of the satellite cell;
The target cell determining module is used for determining a target satellite cell according to the satellite cell information; wherein the determination of the target satellite cell is performed by the terminal device;
The target cell connection module is used for establishing connection with the target satellite cell;
The device is also for:
acquiring signal transmission parameters of a ground station;
determining a coverage radius of the ground station according to the signal transmission parameters;
Correspondingly, determining the control area of the ground station to which the current position belongs comprises the following steps:
Determining a control area according to the distribution position of the ground stations and the coverage radius, and identifying the control area of the ground station to which the current position belongs;
the coverage radius of the ground station refers to the radius of a circular area covered by a transmission signal of the ground station, and according to a calculation formula of the coverage radius, the coverage radius of the ground station can be calculated, wherein the calculation formula is as follows: ；
Wherein R represents a coverage radius, P represents a transmitting power, G represents an antenna gain, and S represents a receiving sensitivity of the terminal equipment;
the target cell determining module is specifically configured to:
reading at least one piece of satellite cell information stored by a ground station and corresponding to the current position;
determining a satellite cell which accords with a preset selection rule with the current time as a target satellite cell in at least one piece of satellite cell information of the current position;
Wherein, the preset selection rule comprises:
acquiring initial time information and end time information of satellite cell residence in the information of each satellite cell;
if the current time belongs to the first third of the time span of the starting time information and the ending time information, determining that the current time accords with a preset selection rule;
Wherein, in at least one piece of satellite cell information of the current position, determining the satellite cell which accords with the preset selection rule with the current time as the target satellite cell comprises the following steps:
if the satellite cell information of the first third of the time span of the starting time information and the ending time information does not exist, the satellite cell information is used as a target satellite cell, wherein the current time is in the range of the time span, and the time difference between the ending time information of the satellite cell information and the current time is longest.
5. 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 ground station-based ground cell determination method of any one of claims 1-3.
6. A readable storage medium, characterized in that it has stored thereon a program or instructions which, when executed by a processor, implement the steps of the ground station based ground cell determination method of any one of claims 1-3.
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