CN117749257A - Engineering realization method and device for searching high-orbit multi-beam by terminal and terminal equipment - Google Patents
Engineering realization method and device for searching high-orbit multi-beam by terminal and terminal equipment Download PDFInfo
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Abstract
The application provides a project realization method, a project realization device and a terminal device for searching high orbit multi-beams, wherein after receiving a plurality of beams sent by a high orbit satellite, longitude and latitude information of each beam and the terminal device is obtained, the longitude and latitude information of each beam and the terminal device is subjected to planarization processing, and polar coordinates corresponding to each beam and the terminal device are obtained. And determining a target beam to which the terminal equipment belongs according to the polar coordinates of the beams and the polar coordinates of the terminal equipment, and determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point to which the terminal equipment belongs in the target beam. In the scheme, the latitude and longitude information of each beam and the terminal equipment are subjected to planarization processing, so that the beam can be searched on the plane based on the polar coordinates, the method is applicable to the beam searching of any irregular beam coverage shape, and the searching is directly performed based on the polar coordinates, so that the searching efficiency can be improved.
Description
Technical Field
The application relates to the technical field of satellite communication, in particular to a method and a device for realizing engineering of terminal searching high-orbit multi-beam and terminal equipment.
Background
With the continued development of commercial competition, greater capacity and greater flexibility are the primary goals of high-throughput system development. The latest generation of high-flux system development, which analyzes the key technology of high-flux satellite load from the satellite load angle, mainly comprises a super-large-scale high-performance multi-beam antenna technology capable of greatly improving the communication capacity of the system. In the multi-beam technology, the arrangement of multi-beams is regular and irregular, circular arrangements with different sizes, elliptical beam arrangements with different parameters, irregular beam coverage shapes and the like. With the increase of the user quantity, the satellite system has perfect flexibility, and the irregular beam arrangement and the irregular beam coverage shape become main trends of high-flux satellite area coverage planning and system design. The communication signal capability of the user terminal to identify the beam is also becoming more complex. In the case of multiple beams, there is overlap between the beam and the beam coverage. The beam position of the terminal and the position of the terminal in the beam coverage area become a key technology of terminal communication.
Currently, a method of identifying a beam based on geographic position and a method of identifying a beam based on intensity of a beam signal detected by a terminal are generally adopted. However, in the two conventional methods, there are drawbacks such as difficulty in applying to irregular beam coverage shape, high computational complexity due to calculation of beam signal intensity, and occurrence of errors due to different sensitivities.
Disclosure of Invention
The purpose of the application includes, for example, providing a project implementation method, device and terminal equipment for searching high-orbit multi-beams by a terminal, which can be suitable for beam searching of any irregular beam coverage shape and improve searching efficiency.
Embodiments of the present application may be implemented as follows:
in a first aspect, the present application provides a method for implementing engineering for searching for high-rail multi-beams by a terminal, which is applied to a terminal device, and the method includes:
receiving a plurality of beams sent by a high orbit satellite, wherein each beam comprises a plurality of beam signal points;
acquiring longitude and latitude information of each wave beam and longitude and latitude information of the terminal equipment;
carrying out planarization treatment on the longitude and latitude information of each wave beam and the longitude and latitude information of the terminal equipment to obtain polar coordinates corresponding to each wave beam and polar coordinates corresponding to the terminal equipment;
determining a target beam to which the terminal equipment belongs according to the polar coordinates of the beams and the polar coordinates of the terminal equipment;
and determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point to which the terminal equipment belongs in the target beam.
In an alternative embodiment, the plurality of beam signal points included in each beam are in a plurality of beam circles centered on a beam center point of the beam, and each beam signal point is divided into different groups according to an angle in polar coordinates;
The step of determining the target beam to which the terminal device belongs according to the polar coordinates of the beams and the polar coordinates of the terminal device comprises the following steps:
for each wave beam, searching each group under the wave beam based on the polar coordinates of the terminal equipment, and determining the target wave beam signal point of the terminal equipment in the wave beam;
and determining the target beam to which the terminal equipment belongs according to the signal intensity of the target beam signal point to which the terminal equipment belongs in each beam.
In an optional implementation manner, the step of searching each packet under the beam based on the polar coordinates of the terminal device to determine the target beam signal point to which the terminal device belongs in the beam includes:
searching each group under the wave beam based on the polar coordinates of the terminal equipment, and judging whether the wave beam signal points meet preset requirements or not based on the polar coordinates of the searched wave beam signal points and the polar coordinates of the terminal equipment;
and when the searched beam signal points meet the preset requirements, determining the beam signal points meeting the preset requirements as target beam signal points of the terminal equipment in the beam.
In an alternative embodiment, the polar coordinates of each beam signal point and the polar coordinates of the terminal device respectively include an angle and a radius;
the step of judging whether the beam signal point meets the preset requirement based on the polar coordinates of the searched beam signal point and the polar coordinates of the terminal equipment comprises the following steps:
for the searched beam signal points, if the angle of the beam signal point is smaller than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, continuing to search the next beam signal point of the beam signal point, wherein the next beam signal point is adjacent to the beam signal point and has an angle larger than the angle of the beam signal point;
and if the angle of the next beam signal point is larger than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, judging that the beam signal point meets the preset requirement.
In an optional implementation manner, the step of determining the target beam to which the terminal device belongs according to the signal strength of the target beam signal point to which the terminal device belongs in each beam includes:
determining a beam circle where a target beam signal point of the terminal equipment belongs in each beam, and determining corresponding signal strength according to the beam circle where each target beam signal point is located;
And determining the beam where the target beam signal point with the strongest signal strength is located as the target beam to which the terminal equipment belongs.
In an optional embodiment, the step of performing planarization processing on the longitude and latitude information of the terminal device to obtain the polar coordinates corresponding to the terminal device includes:
converting longitude and latitude information of the terminal equipment into rectangular coordinate information;
constructing a plane coordinate system, determining a coordinate origin of the plane coordinate system, and obtaining rectangular coordinate information of the coordinate origin;
and calculating the polar coordinates of the terminal equipment based on the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of the coordinate origin.
In an alternative embodiment, the step of determining the target beam to which the terminal device belongs according to the polar coordinates of each beam and the polar coordinates of the terminal device includes:
determining a preset number of adjacent beams closest to the terminal equipment from the plurality of beams according to the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of each beam in the plurality of beams;
and determining the target beam to which the terminal equipment belongs according to the polar coordinates of the adjacent beams and the polar coordinates of the terminal equipment.
In an alternative embodiment, the method further comprises:
and re-determining the target beam to which the terminal equipment belongs according to the preset time length of each interval, and if the re-determined target beam is inconsistent with the target beam before re-determination, performing beam switching.
In a second aspect, the present application provides an engineering implementation apparatus for searching for high-rail multi-beams by a terminal, which is applied to a terminal device, and the apparatus includes:
the receiving module is used for receiving a plurality of beams sent by the high orbit satellite, and each beam comprises a plurality of beam signal points;
the acquisition module is used for acquiring longitude and latitude information of each wave beam and longitude and latitude information of the terminal equipment;
the processing module is used for carrying out planarization processing on the longitude and latitude information of each wave beam and the longitude and latitude information of the terminal equipment to obtain polar coordinates corresponding to each wave beam and polar coordinates corresponding to the terminal equipment;
the first determining module is used for determining a target beam to which the terminal equipment belongs according to the polar coordinates of the beams and the polar coordinates of the terminal equipment;
and the second determining module is used for determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point to which the terminal equipment belongs in the target beam.
In a third aspect, the present application provides a terminal device comprising a machine-readable storage medium storing machine-executable instructions and a processor, which when executing the machine-executable instructions, implements the method according to any one of the preceding embodiments.
The beneficial effects of the embodiment of the application include, for example:
the application provides a project realization method, a project realization device and a terminal device for searching high orbit multi-beams, wherein after receiving a plurality of beams sent by a high orbit satellite, longitude and latitude information of each beam and the terminal device is obtained, the longitude and latitude information of each beam and the terminal device is subjected to planarization processing, and polar coordinates corresponding to each beam and the terminal device are obtained. And determining a target beam to which the terminal equipment belongs according to the polar coordinates of the beams and the polar coordinates of the terminal equipment, and determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point to which the terminal equipment belongs in the target beam. In the scheme, the latitude and longitude information of each beam and the terminal equipment are subjected to planarization processing, so that the beam can be searched on the plane based on the polar coordinates, the method is applicable to the beam searching of any irregular beam coverage shape, and the searching is directly performed based on the polar coordinates, so that the searching efficiency can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a beam identification method based on geographic location in the prior art;
fig. 2 is a flowchart of an engineering implementation method for searching for high-rail multi-beams by a terminal according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a multi-beam signal from a high orbit satellite;
FIG. 4 is a flow chart of sub-steps involved in S13 in FIG. 2;
FIG. 5 is a schematic diagram of a geodetic coordinate system;
fig. 6 is a schematic diagram of a planarized beam and a terminal device;
FIG. 7 is a flow chart of sub-steps involved in S14 of FIG. 2;
FIG. 8 is a flow chart of sub-steps involved in S141 of FIG. 7;
FIG. 9 is a flow chart of sub-steps involved in S1411 in FIG. 8;
fig. 10 is another schematic diagram of a planar rear beam and a terminal device;
FIG. 11 is a flow chart of sub-steps included in S142 of FIG. 7;
Fig. 12 is a schematic view of a scenario in which a terminal device is in a beam under a single beam;
fig. 13 is a schematic view of a scenario in which a terminal device is in a beam in a multi-beam;
fig. 14 is a functional block diagram of an engineering implementation device for searching for high-rail multi-beams by using a terminal according to an embodiment of the present application;
fig. 15 is a block diagram of a structure of a terminal device according to an embodiment of the present application.
Icon: 110-a terminal searches for an engineering realization device of a high-orbit multi-beam; a 111-receiving module; 112-obtaining a module; 113-a processing module; 114-a first determination module; 115-a second determination module; a 120-processor; 130-memory; 140-communication module.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely 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. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, if the terms "first," "second," and the like are used merely to distinguish between descriptions, they are not to be construed as indicating or implying relative importance.
It should be noted that, without conflict, features in embodiments of the present application may be combined with each other.
In the existing multi-beam searching method, one common method is a beam identification method based on geographic positions, and the beam switching requirement is triggered through calculation results based on the geographic positions. As shown in fig. 1, where D1 to D5 respectively represent distances from the terminal device (terminal shown in the figure) to the centers of the respective beams. It is assumed that when the terminal is within beam 2 and the serving beam is 2, the terminal will time to calculate the distance D1 to D5 from the location of the terminal, and compare with D2, and when the distance of the terminal from D2 is greater than any other distance, the terminal will perform beam switching. When the terminal switches according to the position, the coverage area of each wave beam is required to be consistent, and the coverage area is required to be in a regular round shape. However, in a practical scenario, the shape of the beam coverage tends to be irregular, and the distance from the beam center to the terminal does not represent the strength of the signal well, so there is a large error.
In addition, there is a common method for performing beam switching based on the strength of a signal detected by a terminal, and dynamically determining a beam number by the terminal detecting the strength of a beam signal. This approach firstly increases the complexity of the operation of the terminal and secondly, the signal strength calculated by the terminal will vary according to the detection sensitivity of the terminal, and thus there is some error.
Based on the research findings, the application provides a project implementation method for searching high-orbit multi-beams by using a terminal, and the project implementation method can search beams on a plane based on polar coordinates by carrying out planarization processing on longitude and latitude information of each beam and terminal equipment, can be suitable for searching beams in any irregular beam coverage shape, and can improve the searching efficiency by adopting a mode of directly searching based on the polar coordinates.
Referring to fig. 2, a flow chart of a method for implementing a terminal searching for high-rail multi-beam engineering provided in an embodiment of the present application may be implemented by a device for implementing a terminal searching for high-rail multi-beam engineering, where the device for implementing a terminal searching for high-rail multi-beam engineering may be implemented by software and/or hardware, and may be configured in a terminal device, and the terminal device may be a device with a communication function, for example, an apparatus such as an aircraft, an unmanned plane, a ship, or an automobile, or a processing device on these devices. The detailed steps of the engineering implementation method for searching the high-orbit multi-beam by the terminal are described as follows.
S11, receiving a plurality of beams sent by a high orbit satellite, wherein each beam comprises a plurality of beam signal points.
S12, longitude and latitude information of each wave beam and longitude and latitude information of the terminal equipment are obtained.
S13, carrying out planarization processing on the longitude and latitude information of each wave beam and the longitude and latitude information of the terminal equipment to obtain polar coordinates corresponding to each wave beam and polar coordinates corresponding to the terminal equipment.
S14, determining the target beam of the terminal equipment according to the polar coordinates of the beams and the polar coordinates of the terminal equipment.
S15, determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point of the target beam, to which the terminal equipment belongs.
The high orbit satellite may emit a plurality of beams, as shown in fig. 3, and a terminal device located on the earth may receive the beam signals emitted by the high orbit satellite. The terminal device may store the received beam information for subsequent use. The high-flux communication satellite is a communication satellite with communication capacity which is several times or even tens times higher than that of the conventional communication satellite under the condition of using the same frequency resource, and is mainly characterized by adopting advanced technologies such as frequency multiplexing, multi-beam and the like. The locations of the high orbit satellites and the earth are approximately relatively stationary, and the beams of the high orbit satellites are stationary within the coverage of the earth's surface. The terminal equipment on the earth's surface can consider the beam information unchanged when identifying the beam range. Therefore, after receiving the beam signal, the terminal device can store the beam information, and real-time detection is not needed in the subsequent use.
The position information of each beam in the beam signal received by the terminal equipment is represented by longitude and latitude information, and the position information of the terminal equipment is also represented by longitude and latitude information. In order to facilitate subsequent fast searching, in this embodiment, latitude and longitude information of each beam and latitude and longitude information of the terminal device are planarized. The planarization process is to map each beam and each terminal device onto the same plane, and convert each beam and each terminal device into a polar coordinate system constructed on the same plane, so as to obtain polar coordinates of each beam and each terminal device.
Because the beam signal sent by the high orbit satellite comprises a plurality of beams, each beam has a certain coverage area, and the terminal equipment needs to determine the beam to which the terminal equipment belongs based on the information of the plurality of beams, so that the functions of network access, communication and the like are realized by the determined beam to which the terminal equipment belongs.
In this embodiment, after mapping each beam and the terminal device to the same plane, the beam to which the terminal device belongs is directly determined on the plane in a polar coordinate search manner, and is used as the target beam. In addition, the position of the terminal equipment in the beam needs to be determined, so that the signal strength corresponding to the terminal equipment is determined.
Each beam has a coverage area where signal strengths at different locations may be different, typically where signal strengths are strongest at a center location and weakest at an edge location. In this embodiment, it may be understood that the beam has a plurality of beam signal points within the coverage area, and each beam signal point has a corresponding signal strength.
When the signal intensity corresponding to the terminal equipment is determined, the signal intensity corresponding to the terminal equipment can be further obtained by determining the beam signal point to which the terminal equipment belongs.
In this way, in this embodiment, the latitude and longitude information of each beam and the terminal device are subjected to planarization processing, so that the search of the beam can be performed on the plane based on the polar coordinates, and the method is applicable to the search of the beam in any irregular beam coverage shape, and the search is directly performed based on the polar coordinates, so that the beam to which the terminal device belongs and the beam signal point to which the terminal device belongs are determined, the signal strength corresponding to the terminal device is further determined, and the search efficiency can be improved.
Referring to fig. 4, in this embodiment, the step of performing planarization processing on longitude and latitude information of a terminal device to obtain polar coordinates corresponding to the terminal device may be implemented by the following manner:
S131, converting longitude and latitude information of the terminal equipment into rectangular coordinate information.
S132, constructing a plane coordinate system, determining a coordinate origin of the plane coordinate system, and obtaining rectangular coordinate information of the coordinate origin.
And S133, calculating the polar coordinates of the terminal equipment based on the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of the coordinate origin.
The latitude and longitude information is position information in a geodetic coordinate system, which is a coordinate system representing the geometrical position of a point in space with a geodetic longitude L, a geodetic latitude B, and a geodetic altitude H, as shown in fig. 5. Longitude is 180 ° east, west, and L from the original meridian. Latitude is from the equator to north and south, 90 deg., denoted by B. The height is the earth height of the point from the normal to the reference ellipsoid, denoted by the letter H. The geodetic height is positive from the ellipsoid to the outside and negative from the inside.
The right-hand coordinate system O-XYZ is formed by taking the center O of an ellipse as a coordinate origin, taking the intersection line of the initial meridian plane and the equatorial plane of the earth as an X axis, taking the direction orthogonal to the X axis on the equatorial plane as a Y axis and taking the rotating shaft of the ellipse as a Z axis.
In this embodiment, the terminal devicePThe longitude and latitude information (B, L, H) of (B) is converted into rectangular coordinate information (X, Y, Z), and the conversion formula is as follows:
wherein,representing the first eccentricity of the earth, the equatorial radius of the reference ellipsoid is +.>The polar radius of the reference ellipsoid is +.>In the definition of the reference ellipsoids, +.>Then: />。
Since the Z values in the rectangular coordinate information calculated by the plurality of beams near the terminal device are approximately the same, in this embodiment, the terminal device and each beam can be mapped onto the same plane.
In this embodiment, each beam includes a plurality of beam signal points on a plurality of beam circles centered about a beam center point of the beam, for example as shown in fig. 6, o represents the beam center point of the beam,a 0 anda 1 for a beam signal point located on the first beam circle of the beam,b 0 andb 1 for a beam signal point located on the second beam circle of the beam,Prepresenting the terminal device.
In converting rectangular coordinate information of a terminal device into polar coordinates, the polar coordinates may be expressed asWherein->Is the angle of the terminal equipment, +.>Is the radius of the polar coordinates of the terminal device. Rectangular coordinate information of the terminal equipment is expressed as (+. >,/>). Wherein the origin of coordinates of the constructed plane coordinate system is represented as O point, the polar coordinates of the O point are represented as O (0, 0), and the rectangular coordinate information of the O point is represented as (>,/>)。
The polar coordinates of the terminal equipment can be obtained by calculation according to the following formula based on the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of the origin of coordinates：
It should be noted that, the above process is a process of converting longitude and latitude information of the terminal device into polar coordinates, and a manner of converting longitude and latitude information of each beam into polar coordinates is consistent with the above manner, which can be referred to the above related description, and this embodiment is not repeated here.
On the basis of the above, in the present embodiment, among the plurality of beam signal points included in each beam, each beam signal point is divided into different groups according to the angle in the polar coordinates. For example, as shown in fig. 6, where o-point represents the beam center point of the beam, each beam circle of the beam may be divided into N equal sectors, e.g., N is 12, in a planar coordinate system, each equal sector being a sector covering 30 degrees. Thus, 12 packets, denoted 1, 2, …,11, 12, respectively, can be obtained.
Each beam signal point is divided into each group according to the angle in the polar coordinate, and if each group comprises a plurality of beam signal points, the plurality of beam signal points are sequentially arranged and stored according to the order from small to large.
In this embodiment, a table may be constructed for each beam, each table may be divided into N groups, polar coordinates, rectangular coordinate information, and the like of a plurality of beam signal points included in each beam may be stored in each group, and the constructed table may be stored in the terminal device. Thus, when the terminal device performs beam searching, the stored table can be directly extracted, and searching calculation is performed based on the information of the beam stored in the table.
By storing the beam information in the form of a table, the method is convenient for the terminal equipment to extract and calculate, does not need to detect in real time during searching, simplifies the searching process, reduces the calculation complexity of the terminal equipment, and further reduces the network access time delay of the terminal equipment.
On the basis of the above, referring to fig. 7, when determining the target beam to which the terminal device belongs according to the polar coordinates of each beam and the polar coordinates of the terminal device, it may be achieved by:
s141, for each wave beam, searching each group under the wave beam based on the polar coordinates of the terminal equipment, and determining the target wave beam signal point of the terminal equipment in the wave beam.
S142, determining the target beam to which the terminal equipment belongs according to the signal intensity of the target beam signal point to which the terminal equipment belongs in each beam.
In this embodiment, since the beam signal sent by the high orbit satellite includes a plurality of beams, some of the beams are far from the terminal device, and these beams increase the workload of beam searching, in this embodiment, some of the beams are first screened out as the object of the subsequent searching based on the following manner.
Specifically, according to rectangular coordinate information of the terminal equipment and rectangular coordinate information of each beam in the plurality of beams, a preset number of adjacent beams closest to the terminal equipment are determined from the plurality of beams, and then a target beam to which the terminal equipment belongs is determined according to polar coordinates of each adjacent beam and polar coordinates of the terminal equipment.
In this embodiment, the distance between the terminal device and each beam center point may be calculated based on the rectangular coordinate information of the terminal device and the rectangular coordinate information of the beam center point of each beam, and the beam with the smallest distance is selected as the adjacent beam, where the preset number may be set according to the requirement, for example, 5, 6, and the like are not limited. For example, the determined adjacent beams may be noted as，…，/>。
And the terminal equipment searches from the determined adjacent beams in a targeted manner when searching the beams, and determines the target beam to which the terminal equipment belongs.
Referring to fig. 8, in this embodiment, the step of determining the target beam signal point to which the terminal device belongs in the beam may be implemented by the following manner:
s1411, searching each group under the beam based on the polar coordinates of the terminal equipment, and judging whether the beam signal points meet preset requirements based on the polar coordinates of the searched beam signal points and the polar coordinates of the terminal equipment.
And S1412, when the searched beam signal points meet the preset requirements, determining the beam signal points meeting the preset requirements as target beam signal points of the terminal equipment in the beam.
In this embodiment, the polar coordinates of the terminal device and the polar coordinates of the beam signal points are directly compared to determine the beam signal points meeting the preset requirement, and then the target beam signal points to which the terminal device belongs are determined.
Referring to fig. 9, in one possible implementation, it may be determined whether the beam signal point meets the preset requirement by:
s14111, for the searched beam signal point, detecting whether the angle of the beam signal point is smaller than the angle of the terminal device and the radius is larger than the radius of the terminal device, if the angle of the beam signal point is smaller than the angle of the terminal device and the radius is larger than the radius of the terminal device, executing the following step S14112, otherwise, executing the following step S14115.
S14112, continuing to search for a next beam signal point of the beam signal point, the next beam signal point being adjacent to the beam signal point at an angle greater than the angle of the beam signal point.
S4113, detecting whether the angle of the next beam signal point is greater than the angle of the terminal device and the radius is greater than the radius of the terminal device, if the angle of the next beam signal point is greater than the angle of the terminal device and the radius is greater than the radius of the terminal device, executing the following step S14114, otherwise, executing the following step S14115.
S14114, judging that the beam signal points meet preset requirements.
S14115, judging that the beam signal point does not meet the preset requirement.
Referring to fig. 10 in combination, the above-determined adjacent beam includes，…，/>In the case of (a), a search is performed for each adjacent beam. Wherein, for the beamR 1 From the packets angularly divided under the beam, the packets are groupedThe beam signal points in (a) are searched.
In groupingIn the method, each beam signal point is searched in sequence, if the angle of the beam signal point is smaller than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment after searching a certain beam signal point, and the angle of the next beam signal point of the beam signal point is larger than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, the target beam signal point to which the terminal equipment belongs can be determined as the beam signal point, that is, the terminal equipment is in the range of the beam signal point, and the searched result can be recorded as ( >,/>,/>)。
Such as shown in fig. 10, wherein,Pthe point represents the point at which the terminal device,orepresenting the beam center point of the beam,a 0 anda 1 for a beam signal point located on the first beam circle of the beam,b 0 andb 1 is the beam signal point located on the second beam circle of the beam. Each beam circle of the beam is divided into 12 equally divided sectors, labeled 1 to 12, under a planar coordinate system. Beam signal pointa 0 The angle of (2) is smaller than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, and the beam signal pointa 1 The beam signal point can be determined if the angle of the beam signal point is larger than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipmenta 0 Is the target beam signal point to which the terminal device belongs.
Searching each wave beam according to the mode, under the condition that m wave beams are provided, obtaining m groups of search results after searching is completed,/>,/>)、…、(/>,/>,/>). The target beam to which the terminal device belongs can then be determined based on the signal strength of the target beam signal point to which the terminal device belongs in the respective beam.
Referring to fig. 11, in one possible implementation, the target beam may be determined by:
s1421, determining a beam circle where a target beam signal point of each beam belongs to the terminal equipment, and determining corresponding signal strength according to the beam circle where each target beam signal point is located.
S1422, determining the beam where the target beam signal point with the strongest signal strength is located as the target beam to which the terminal equipment belongs.
In the case of a single beam, the location of the terminal device in the single beam is as shown in fig. 12, wherein,Q 0 representing the beam center point and,Pwhich means that the terminal device is provided with a communication interface,Q i andQ j representing respectively two adjacent beam signal points on the beam circle on which the terminal device is located. But in practice it is often multi-beam and the multiple beam coverage areas overlap, the scenario of the terminal device in the multi-beam range is shown in fig. 13. For beamsRSum beamQBeam of waveRIs the beam center point of (2)R 0 Beam of waveQIs the beam center point of (2)Q 0 . BeamRSum beamQWith two beam circles (exemplary), terminal equipmentPIn the beamRAlso within the first beam circle of (a)QIs within the second beam circle of (c). Wherein,Q i andQ j respectively representing terminal equipment in wave beamsQTwo adjacent beam signal points on the beam circle where they are located,R i andR j respectively representing terminal equipment in wave beamsRTwo adjacent beam signal points on the beam circle where they are located. While the signal strength on the beam circle gradually decreases from inside to outside, so that the terminal equipment is on the beamRThe signal strength in the beam is greater than that in the beam QSignal strength within.
Based on this, after determining the target beam signal points of the terminal device in the respective beams, the signal strengths of the respective target beam signal points may be compared, wherein the signal strength of the target beam signal points on the beam coils located more inside is greater in the direction from inside to outside. In this way, the beam where the target beam signal with the strongest signal strength is located may be determined as the target beam to which the terminal device belongs, for example, it is assumed that the determined target beam isThe final search result can be noted as (+.>,/>,/>) Wherein->The signal points of the target signal points of the terminal equipment in the target beam are represented, and the signal strength corresponding to the terminal equipment can be represented.
Since the terminal equipment may be in motion while the locations of the high orbit satellites and the earth are approximately stationary, the beams of the high orbit satellites are stationary within the coverage of the earth's surface. Therefore, in the case that the terminal device is in an operating state, it is necessary to update the target beam to which the terminal device belongs so that the terminal device can communicate in the correct beam segment.
Specifically, in this embodiment, each interval is preset for a period of time, a target beam to which the terminal device belongs is redetermined, and if the redetermined target beam is inconsistent with the target beam before redetermining, beam switching is performed.
According to the engineering implementation method for searching high-orbit multi-beam by the terminal, the longitude and latitude information of the terminal equipment and the beam is subjected to planarization processing so as to be converted into polar coordinates. And carrying out beam searching based on the polar coordinates, and determining the target beam to which the terminal equipment belongs and the target beam signal point to which the target beam belongs. Therefore, the signal intensity of each wave beam is not required to be detected, the calculation complexity of the terminal is reduced, and the searching efficiency is improved. And, it is applicable to any irregular beam coverage shape.
Based on the same inventive concept, please refer to fig. 14, which is a schematic diagram illustrating functional modules of a terminal searching high-rail multi-beam engineering implementation device 110 provided in the embodiment of the present application, where the embodiment may divide functional modules of the terminal searching high-rail multi-beam engineering implementation device 110 according to the above method embodiment. For example, each functional module may be divided for each function, or two or more functions may be integrated in one processing module 113. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
For example, in the case of dividing each functional module by corresponding each function, the engineering implementation apparatus 110 for searching for high-rail multi-beam by the terminal shown in fig. 14 is only one apparatus schematic diagram. The engineering implementation device 110 for searching for high-rail multi-beams by using a terminal may include a receiving module 111, an obtaining module 112, a processing module 113, a first determining module 114, and a second determining module 115, and the functions of each functional module of the engineering implementation device 110 for searching for high-rail multi-beams by using the terminal are described in detail below.
A receiving module 111, configured to receive a plurality of beams sent by a high-orbit satellite, where each beam includes a plurality of beam signal points;
it is understood that the receiving module 111 may be used to perform the above step S11, and reference may be made to the details of the implementation of the receiving module 111 in the above step S11.
An obtaining module 112, configured to obtain latitude and longitude information of each beam and latitude and longitude information of the terminal device;
it will be appreciated that the obtaining module 112 may be used to perform the step S12 described above, and reference may be made to the details of the implementation of the obtaining module 112 with respect to the step S12 described above.
The processing module 113 is configured to perform planarization processing on the latitude and longitude information of each beam and the latitude and longitude information of the terminal device, so as to obtain a polar coordinate corresponding to each beam and a polar coordinate corresponding to the terminal device;
It will be appreciated that the processing module 113 may be configured to perform the step S13 described above, and reference may be made to the details of the implementation of the processing module 113 in relation to the step S13 described above.
A first determining module 114, configured to determine, according to the polar coordinates of each beam and the polar coordinates of the terminal device, a target beam to which the terminal device belongs;
it will be appreciated that the first determination module 114 may be configured to perform the step S14 described above, and reference may be made to the details of the implementation of the first determination module 114 in connection with the step S14 described above.
And the second determining module 115 is configured to determine a signal strength corresponding to the terminal device according to a signal strength of a target beam signal point to which the terminal device belongs in the target beam.
It is understood that the second determining module 115 may be used to perform the above step S15, and reference may be made to the details of the implementation of the second determining module 115 in the above step S15.
In one possible implementation, each of the beams includes a plurality of beam signal points in a plurality of beam circles centered on a beam center point of the beam, each of the beam signal points being divided into different groupings by an angle in polar coordinates; the first determining module 114 may be configured to:
For each wave beam, searching each group under the wave beam based on the polar coordinates of the terminal equipment, and determining the target wave beam signal point of the terminal equipment in the wave beam;
and determining the target beam to which the terminal equipment belongs according to the signal intensity of the target beam signal point to which the terminal equipment belongs in each beam.
In one possible implementation, the first determining module 114 may be configured to:
searching each group under the wave beam based on the polar coordinates of the terminal equipment, and judging whether the wave beam signal points meet preset requirements or not based on the polar coordinates of the searched wave beam signal points and the polar coordinates of the terminal equipment;
and when the searched beam signal points meet the preset requirements, determining the beam signal points meeting the preset requirements as target beam signal points of the terminal equipment in the beam.
In one possible implementation manner, the polar coordinates of each beam signal point and the polar coordinates of the terminal device respectively include an angle and a radius; the first determining module 114 may be configured to:
for the searched beam signal points, if the angle of the beam signal point is smaller than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, continuing to search the next beam signal point of the beam signal point, wherein the next beam signal point is adjacent to the beam signal point and has an angle larger than the angle of the beam signal point;
And if the angle of the next beam signal point is larger than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, judging that the beam signal point meets the preset requirement.
In one possible implementation, the first determining module 114 may be configured to:
determining a beam circle where a target beam signal point of the terminal equipment belongs in each beam, and determining corresponding signal strength according to the beam circle where each target beam signal point is located;
and determining the beam where the target beam signal point with the strongest signal strength is located as the target beam to which the terminal equipment belongs.
In one possible implementation, the processing module 113 may be configured to:
converting longitude and latitude information of the terminal equipment into rectangular coordinate information;
constructing a plane coordinate system, determining a coordinate origin of the plane coordinate system, and obtaining rectangular coordinate information of the coordinate origin;
and calculating the polar coordinates of the terminal equipment based on the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of the coordinate origin.
In one possible implementation, the processing module 113 may be configured to:
determining a preset number of adjacent beams closest to the terminal equipment from the plurality of beams according to the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of each beam in the plurality of beams;
And determining the target beam to which the terminal equipment belongs according to the polar coordinates of the adjacent beams and the polar coordinates of the terminal equipment.
In one possible implementation manner, the engineering implementation apparatus 110 for searching for high-rail multi-beams by the terminal further includes a switching module, where the switching module may be configured to:
and re-determining the target beam to which the terminal equipment belongs according to the preset time length of each interval, and if the re-determined target beam is inconsistent with the target beam before re-determination, performing beam switching.
Referring to fig. 15, a block diagram of a terminal device according to an embodiment of the present application is provided, where the terminal device may be a processing device on a mobile device, such as an aircraft, an automobile, and the terminal device includes a memory 130, a processor 120, and a communication module 140. The memory 130, the processor 120, and the communication module 140 are electrically connected directly or indirectly to each other to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines.
Wherein the memory 130 is used for storing programs or data. The Memory 130 may be, but is not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc.
The processor 120 is configured to read/write data or programs stored in the memory 130, and execute the engineering implementation method for searching for high-rail multi-beams by the terminal according to any embodiment of the present application.
The communication module 140 is used for establishing communication connection between the terminal device and other communication terminals through a network, and is used for receiving and transmitting data through the network.
It should be understood that the structure shown in fig. 15 is merely a schematic structural diagram of a terminal device, and the terminal device may further include more or fewer components than those shown in fig. 15, or have a different configuration from that shown in fig. 15.
Further, the embodiment of the application also provides a computer readable storage medium, and the computer readable storage medium stores machine executable instructions, and when the machine executable instructions are executed, the engineering implementation method for searching for high-rail multi-beams by the terminal provided by the embodiment is realized.
Specifically, the computer readable storage medium can be a general storage medium, such as a mobile disk, a hard disk, or the like, and when the computer program on the computer readable storage medium is executed, the engineering implementation method for searching for high-rail multi-beams by the terminal can be executed. With respect to the processes in the computer readable storage medium and the executable instructions thereof involved when executed, reference is made to the relevant descriptions of the above method embodiments, which are not described in detail herein.
In summary, the method, the device and the terminal device for realizing engineering of searching for high orbit multiple beams by the terminal provided by the embodiments of the present application obtain longitude and latitude information of each beam and the terminal device after receiving multiple beams sent by the high orbit satellite, and planarize the longitude and latitude information of each beam and the terminal device to obtain polar coordinates corresponding to each beam and the terminal device. And determining a target beam to which the terminal equipment belongs according to the polar coordinates of the beams and the polar coordinates of the terminal equipment, and determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point to which the terminal equipment belongs in the target beam. In the scheme, the latitude and longitude information of each beam and the terminal equipment are subjected to planarization processing, so that the beam can be searched on the plane based on the polar coordinates, the method is applicable to the beam searching of any irregular beam coverage shape, and the searching is directly performed based on the polar coordinates, so that the searching efficiency can be improved.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An engineering implementation method for searching high-orbit multi-beam by a terminal, which is characterized by being applied to a terminal device, comprising the following steps:
receiving a plurality of beams sent by a high orbit satellite, wherein each beam comprises a plurality of beam signal points;
acquiring longitude and latitude information of each wave beam and longitude and latitude information of the terminal equipment;
carrying out planarization treatment on the longitude and latitude information of each wave beam and the longitude and latitude information of the terminal equipment to obtain polar coordinates corresponding to each wave beam and polar coordinates corresponding to the terminal equipment;
determining a target beam to which the terminal equipment belongs according to the polar coordinates of the beams and the polar coordinates of the terminal equipment;
and determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point to which the terminal equipment belongs in the target beam.
2. The engineering implementation method for searching for a high-rail multi-beam by a terminal according to claim 1, wherein a plurality of beam signal points included in each of the beams are in a plurality of beam circles centered on a beam center point of the beam, and each of the beam signal points is divided into different groups according to angles in polar coordinates;
the step of determining the target beam to which the terminal device belongs according to the polar coordinates of the beams and the polar coordinates of the terminal device comprises the following steps:
For each wave beam, searching each group under the wave beam based on the polar coordinates of the terminal equipment, and determining the target wave beam signal point of the terminal equipment in the wave beam;
and determining the target beam to which the terminal equipment belongs according to the signal intensity of the target beam signal point to which the terminal equipment belongs in each beam.
3. The engineering implementation method for searching for high-rail multi-beams by using a terminal according to claim 2, wherein the step of searching for each packet under the beam based on the polar coordinates of the terminal device to determine the target beam signal point to which the terminal device belongs in the beam includes:
searching each group under the wave beam based on the polar coordinates of the terminal equipment, and judging whether the wave beam signal points meet preset requirements or not based on the polar coordinates of the searched wave beam signal points and the polar coordinates of the terminal equipment;
and when the searched beam signal points meet the preset requirements, determining the beam signal points meeting the preset requirements as target beam signal points of the terminal equipment in the beam.
4. The engineering implementation method for searching for high-orbit multi-beams by using a terminal according to claim 3, wherein the polar coordinates of the beam signal points and the polar coordinates of the terminal equipment respectively comprise an angle and a radius;
The step of judging whether the beam signal point meets the preset requirement based on the polar coordinates of the searched beam signal point and the polar coordinates of the terminal equipment comprises the following steps:
for the searched beam signal points, if the angle of the beam signal point is smaller than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, continuing to search the next beam signal point of the beam signal point, wherein the next beam signal point is adjacent to the beam signal point and has an angle larger than the angle of the beam signal point;
and if the angle of the next beam signal point is larger than the angle of the terminal equipment and the radius is larger than the radius of the terminal equipment, judging that the beam signal point meets the preset requirement.
5. The engineering implementation method for searching for high-rail multi-beams by using a terminal according to claim 3, wherein the step of determining the target beam to which the terminal belongs according to the signal strength of the target beam signal point to which the terminal belongs in each beam comprises the following steps:
determining a beam circle where a target beam signal point of the terminal equipment belongs in each beam, and determining corresponding signal strength according to the beam circle where each target beam signal point is located;
And determining the beam where the target beam signal point with the strongest signal strength is located as the target beam to which the terminal equipment belongs.
6. The engineering implementation method for searching for high-orbit multi-beams by a terminal according to claim 1, wherein the step of performing planarization processing on longitude and latitude information of the terminal device to obtain polar coordinates corresponding to the terminal device comprises the following steps:
converting longitude and latitude information of the terminal equipment into rectangular coordinate information;
constructing a plane coordinate system, determining a coordinate origin of the plane coordinate system, and obtaining rectangular coordinate information of the coordinate origin;
and calculating the polar coordinates of the terminal equipment based on the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of the coordinate origin.
7. The engineering implementation method for searching for high-rail multi-beams by a terminal according to claim 6, wherein the step of determining the target beam to which the terminal belongs according to the polar coordinates of each beam and the polar coordinates of the terminal comprises:
determining a preset number of adjacent beams closest to the terminal equipment from the plurality of beams according to the rectangular coordinate information of the terminal equipment and the rectangular coordinate information of each beam in the plurality of beams;
And determining the target beam to which the terminal equipment belongs according to the polar coordinates of the adjacent beams and the polar coordinates of the terminal equipment.
8. The engineering implementation method for searching for high-rail multi-beams by a terminal according to any one of claims 1 to 7, further comprising:
and re-determining the target beam to which the terminal equipment belongs according to the preset time length of each interval, and if the re-determined target beam is inconsistent with the target beam before re-determination, performing beam switching.
9. An engineering implementation device for searching for high-orbit multi-beams by a terminal, which is applied to a terminal device, and comprises:
the receiving module is used for receiving a plurality of beams sent by the high orbit satellite, and each beam comprises a plurality of beam signal points;
the acquisition module is used for acquiring longitude and latitude information of each wave beam and longitude and latitude information of the terminal equipment;
the processing module is used for carrying out planarization processing on the longitude and latitude information of each wave beam and the longitude and latitude information of the terminal equipment to obtain polar coordinates corresponding to each wave beam and polar coordinates corresponding to the terminal equipment;
the first determining module is used for determining a target beam to which the terminal equipment belongs according to the polar coordinates of the beams and the polar coordinates of the terminal equipment;
And the second determining module is used for determining the signal intensity corresponding to the terminal equipment according to the signal intensity of the target beam signal point to which the terminal equipment belongs in the target beam.
10. A terminal device comprising a machine-readable storage medium storing machine-executable instructions and a processor which, when executing the machine-executable instructions, implements the method of any one of claims 1-8.
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| CN202410186568.0A CN117749257B (en) | 2024-02-20 | Engineering realization method and device for searching high-orbit multi-beam by terminal and terminal equipment |
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| CN202410186568.0A CN117749257B (en) | 2024-02-20 | Engineering realization method and device for searching high-orbit multi-beam by terminal and terminal equipment |
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| CN117749257A true CN117749257A (en) | 2024-03-22 |
| CN117749257B CN117749257B (en) | 2024-05-17 |
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