Interference Avoidance Method, Device, Storage Medium, Electronic Device and Program Product

Abstract

An embodiment of the present invention provides an interference avoidance method, including: when it is determined that there is a target object to be served, determining a target ground area where the target object is located; when it is determined that the target ground area is covered by a first beam of a second satellite, determining whether there is a target beam in the beams transmitted by a first satellite based on first data, the target beam being a beam that covers the target ground area and meets a predetermined condition, the predetermined condition including: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition, the second satellite being a geostationary orbit (GSO) satellite, the first data being determined according to first operation information of the GSO satellite obtained by a third satellite in the previous operation period, the third satellite being a satellite in the satellite system where the first satellite is located, and the orbital altitude of the third satellite being lower than that of the second satellite; when there is a target beam, serving the target object through the target beam.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of communications, and more particularly, to an interference avoidance method, apparatus, storage medium, electronic device, and program product. Background Art

[0002] In the low-earth orbit constellation interference avoidance method in the related art, interference avoidance is usually performed based on the assumption that there is a co-frequency GSO satellite in each orbital position within the geostationary orbit (GSO) arc segment. That is, interference avoidance is performed by adjusting the beam usage frequency of the low-earth orbit satellite. Therefore, it is necessary to adjust the frequency of the low-earth orbit satellite in each orbital position so that the frequency of the low-earth orbit satellite is different from the frequency of the assumed GSO satellite, which will lead to unnecessary frequency adjustment operations, over-protect the GSO system, and thus result in low utilization efficiency of frequency resources. Summary of the Invention

[0003] According to an embodiment of the present invention, there is provided an interference avoidance method applied to a first satellite. The method includes: when it is determined that there is a target object to be served, determining a target ground area where the target object is located; when it is determined that the target ground area is covered by a first beam of a second satellite, determining whether there is a target beam in the beams emitted by the first satellite based on first data, where the target beam is a beam that covers the target ground area and satisfies a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam satisfies a first condition, the second satellite is a geostationary orbit (GSO) satellite, the first data is determined according to first operation information of GSO satellites obtained by a third satellite in the previous operation period, the third satellite is a satellite included in the satellite system where the first satellite is located, and the orbital altitude of the third satellite is lower than the orbital altitude of the second satellite; when there is the target beam, serving the target object through the target beam.

[0004] In an exemplary embodiment, when it is determined that the target ground area is covered by the first beam of the second satellite, determining whether there is a target beam based on the first data includes: when the third beam not recorded in the first data is included in the second beam that covers the target ground area and is transmitted by the first satellite, determining the third beam as the target beam, where the interference state between the fourth beam and the fifth beam is recorded in the first data, and the second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to meet includes the first condition, the fifth beam is the beam that covers the target ground area and is transmitted by the fourth satellite, the fourth satellite is the GSO satellite corresponding to the first operation information obtained by the third satellite in the previous operation cycle, the fourth satellite includes the second satellite, and the fourth beam is the beam that overlaps in frequency with the fifth beam and is included in the second beam.

[0005] In an exemplary embodiment, when it is determined that the target ground area is covered by the first beam of the second satellite, determining whether there is a target beam in the beam transmitted by the first satellite based on the first data further includes: when the third beam is not included in the second beam, determining the isolation angle between the sixth beam and the first beam based on the first data, where the sixth beam is the beam that overlaps in frequency with the second satellite and is included in the fourth beam; when the isolation angle between the sixth beam and the first beam meets the third condition, determining the sixth beam as the target beam, where the second condition includes the third condition.

[0006] In an exemplary embodiment, after determining the target ground area where the target object is located, the method further includes: when it is determined that the target ground area is covered by the first beam and there is no target beam, determining whether there is a fifth satellite in the satellite system whose transmitted seventh beam covers the target ground area and meets the predetermined condition, where the fifth satellite is different from the first satellite; when it is determined that there is the fifth satellite, instructing the fifth satellite to provide services for the target object through the seventh beam.

[0007] In an exemplary embodiment, the method further includes: the third satellite obtaining the first operation information of each GSO satellite detected by the third satellite in the previous operation cycle; the third satellite sending the first operation information to the ground terminal device to instruct the ground terminal device to generate the first data based on the first operation information.

[0008] In an exemplary embodiment, before the third satellite obtains the first operation information of each GSO satellite detected by the third satellite in the previous operation cycle, the method further includes: in the current operation cycle, the third satellite receives in real time the downlink signals sent by each GSO satellite detected by the third satellite, and determines the second operation information of the GSO satellite based on the downlink signals; the third satellite sends the second operation information to the ground terminal device to instruct the ground terminal device to perform the following operations: update the first data according to the second operation information and synchronize the updated first data to the third satellite.

[0009] In an exemplary embodiment, receiving in real time the downlink signals sent by each GSO satellite detected by the third satellite includes: the third satellite scans the GSO satellite arc segment based on the first antenna carried on the third satellite to obtain the downlink signals, wherein the main lobe of the first antenna points to the orbit position of the GSO satellite, the back lobe points to the ground area, and the polarization mode of the first antenna is the same as that of the receiving end of the GSO satellite.

[0010] In an exemplary embodiment, the satellite system includes: a low-earth orbit satellite system.

[0011] According to another embodiment of the present invention, there is also provided an interference avoidance method applied to a ground terminal device. The method includes: receiving the first operation information sent by a third satellite, where the first operation information is the operation information of each geostationary orbit (GSO) satellite detected by the third satellite in the previous operation cycle, and the orbital altitude of the third satellite is lower than the orbital altitude of the GSO satellite; determining first data based on the first operation information; sending the first data to the third satellite, so that when there is a target object to be served in the first satellite included in the third satellite and the target ground area where the target object is located is covered by the first beam of the second satellite, the first satellite determines whether there is a target beam in the beam emitted by the first satellite based on the first data, and when there is the target beam, serves the target object through the target beam, where the third satellite is a satellite included in the satellite system where the first satellite is located, the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition, and the second satellite is a geostationary orbit (GSO) satellite.

[0012] In an exemplary embodiment, the above first data records the interference state between a fourth beam and a fifth beam, and a second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to satisfy. The second condition includes the first condition. The fifth beam is a beam transmitted by a fourth satellite that covers the target ground area. The fourth satellite is a GSO satellite that obtained the above first operation information by the third satellite in the previous operation cycle. The fourth satellite includes the second satellite. The fourth beam is a beam included in the second beam that overlaps in frequency with the fifth beam. The second beam is a beam transmitted by the first satellite that covers the target ground area. The second condition is determined according to the frequency overlap situation between the fourth beam and the fifth beam.

[0013] In an exemplary embodiment, determining the first data based on the above first operation information includes: determining the interference state between the fourth beam and the fifth beam based on the above first operation information, where the interference state between the fourth beam and the fifth beam includes: the target frequency overlap bandwidth between the fourth beam and the fifth beam; determining the second condition based on the target frequency overlap bandwidth.

[0014] In an exemplary embodiment, sending the above first data to the third satellite includes: in the case where it is determined that there is first difference information between the above first data and historical first data, sending the above first difference information to the third satellite to instruct the third satellite to update the stored above first data based on the above first difference information, where the historical first data is data determined based on the operation information of each geostationary orbit GSO satellite detected by the third satellite in the operation cycle before the previous operation cycle.

[0015] In an exemplary embodiment, after sending the above first data to the third satellite, the method further includes: receiving second operation information sent by the third satellite, where the second operation information is the operation information of the GSO satellite determined by the third satellite in the current operation cycle based on the downlink signals received in real time from each GSO satellite detected by the third satellite; generating target first data based on the second operation information; in the case where it is determined that there is second difference information between the target first data and the above first data, sending the above second difference information to the third satellite to instruct the third satellite to update the currently stored above first data based on the above second difference information.

[0016] In an exemplary embodiment, the above satellite system includes: a low-earth orbit satellite system.

[0017] According to another embodiment of the present invention, there is provided an interference avoidance device applied to a first satellite. The device includes: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the following operations are implemented: when it is determined that there is a target object to be served, determine the target ground area where the target object is located; when it is determined that the target ground area is covered by a first beam of a second satellite, based on first data, determine whether there is a target beam in the beams emitted by the first satellite, where the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition. The second satellite is a geostationary orbit GSO satellite, and the first data is determined according to the first operation information of the GSO satellite obtained by a third satellite in the previous operation cycle. The third satellite is a satellite included in the satellite system where the first satellite is located, and the orbit altitude of the third satellite is lower than the orbit altitude of the second satellite; when there is the target beam, serve the target object through the target beam.

[0018] According to another embodiment of the present invention, there is also provided an interference avoidance device applied to a ground terminal device. The device includes: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the following operations are implemented: receive the first operation information sent by a third satellite, where the first operation information is the operation information of each geostationary orbit GSO satellite detected by the third satellite in the previous operation cycle, and the orbit altitude of the third satellite is lower than the orbit altitude of the GSO satellite; determine first data based on the first operation information; send the first data to the third satellite, so that when there is a target object to be served in the first satellite included in the third satellite and the target ground area where the target object is located is covered by a first beam of a second satellite, based on the first data, determine whether there is a target beam in the beams emitted by the first satellite, and when there is the target beam, serve the target object through the target beam, where the third satellite is a satellite included in the satellite system where the first satellite is located, the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition. The second satellite is a geostationary orbit GSO satellite.

[0019] According to another embodiment of the present invention, there is also provided a computer-readable storage medium storing a computer program, wherein the computer program is configured to execute the steps in any one of the above method embodiments when running.

[0020] According to another embodiment of the present invention, there is also provided an electronic device including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0021] According to another embodiment of the present invention, there is also provided a computer program product including a computer program, wherein the computer program implements the steps in any one of the above method embodiments when executed by a processor. Description of the Drawings

[0022] Figure 1 is a hardware structural block diagram of a mobile terminal of an interference avoidance method according to an embodiment of the present invention;

[0023] Figure 2 is the flow of an interference avoidance method according to an embodiment of the present invention Figure 1 ;

[0024] Figure 3 is the flow of an interference avoidance method according to an embodiment of the present invention Figure 2 ;

[0025] Figure 4(A) is the flow of an interference avoidance method according to an embodiment of the present invention Figure 3 ;

[0026] Figure 4(B) is Flowchart Four of the interference avoidance method according to an embodiment of the present invention;

[0027] Figure 5 is the structural block of an interference avoidance device according to an embodiment of the present invention Figure 1 ;

[0028] Figure 6 is the structural block of an interference avoidance device according to an embodiment of the present invention Figure 2 . Detailed Embodiments

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings and in conjunction with embodiments.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence.

[0031] The method embodiments provided in the embodiments of the present application can be executed on a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 is a hardware structural block diagram of a mobile terminal for the interference avoidance method according to an embodiment of the present invention. As Figure 1 shown, the mobile terminal may include one or more ( Figure 1 only one is shown in the figure) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Among them, the above-mentioned mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 1 the structure shown is only schematic and does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal may further include more or fewer components than Figure 1 shown in the figure, or have a different configuration from Figure 1 shown in the figure.

[0032] The memory 104 can be used to store computer programs. For example, software programs and modules of application software, such as the computer program corresponding to the interference avoidance method in the embodiments of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above-mentioned method is implemented. The memory 104 may include a high-speed random access memory, and may further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely provided with respect to the processor 102, and these remote memories can be connected to the mobile terminal through a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0033] The transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of the mobile terminal. In one instance, the transmission device 106 includes a network adapter (abbreviated as NIC), which can be connected to other network devices through a base station and thus can communicate with the Internet. In one instance, the transmission device 106 may be a radio frequency (abbreviated as RF) module, which is used to communicate with the Internet wirelessly.

[0034] In this embodiment, an interference avoidance method running on a first satellite is provided. Figure 2 is the flow of the interference avoidance method according to an embodiment of the present invention. Figure 1 As Figure 2As shown, the process includes the following steps:

[0035] Step S202: When it is determined that there is a target object to be served, determine the target ground area where the target object is located;

[0036] Step S204: When it is determined that the target ground area is covered by the first beam of the second satellite, determine whether there is a target beam in the beams emitted by the first satellite based on the first data. Here, the target beam is a beam that covers the target ground area and meets a predetermined condition. The predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets the first condition. The second satellite is a geostationary orbit GSO satellite. The first data is determined based on the first operation information of the GSO satellite obtained by the third satellite in the previous operation cycle. The third satellite is a satellite included in the satellite system where the first satellite is located, and the orbital altitude of the third satellite is lower than that of the second satellite;

[0037] Step S206: When there is the target beam, serve the target object through the target beam.

[0038] In the above step S202, the target object includes but is not limited to: communication devices, navigation and positioning devices, remote sensing detection devices, scientific experiment devices, Internet of Things devices, etc. The target ground area includes but is not limited to: ground areas with one or more grid numbers. The first satellite includes but is not limited to: low Earth orbit LEO (Low Earth Orbit) satellites.

[0039] In the above step S204, the first condition includes but is not limited to: the angular range within which the isolation angle between the target beam and the first beam should be. Exemplarily, the third satellite includes but is not limited to low Earth orbit LEO satellites. Among the third satellites, it includes but is not limited to: including the first satellite, or not including the first satellite. When the first satellite is included in the third satellites, the first operation information of the GSO satellite obtained in the previous operation cycle includes but is not limited to: obtained by each satellite included in the third satellites, or obtained by the first satellite, or obtained by other satellites included in the third satellites except the first satellite.

[0040] In the above steps, the second satellite includes, but is not limited to, one or more. When there are multiple second satellites, for each of the second satellites, a corresponding target beam is determined respectively, and the beam included in the target beams corresponding to each of the second satellites is used to provide services for the target object. Exemplarily, when the second satellites include satellite A and satellite B, the target beam corresponding to satellite A includes beam 1 and beam 2, and the target beam corresponding to satellite B includes beam 1, beam 1 is used to provide services for the target object.

[0041] In an optional embodiment, the above method further includes: when it is determined that there is a target object to be served, determining the target ground area where the target object is located; when it is determined that the target ground area is not covered by the beam of the GSO satellite, determining that services can be provided for the target object. Exemplarily, when the target ground area is not covered by the beam of the GSO satellite, the beam for serving the target object is determined based on factors such as the required service type of the target object, the coverage range of the beam, the communication capacity, the anti-interference ability, etc.

[0042] In the above steps, when the target ground area where the target object to be served is located is covered by the GSO satellite (i.e., the second satellite), the target beam that meets the predetermined conditions in the beam that the first satellite can cover the target ground area is used to provide services for the target object, thereby avoiding the interference between the beam of the first satellite and the GSO covering the target ground area during the process of providing services for the target object, realizing the interference avoidance between beams, improving the stability and reliability of the service, ensuring the service quality, and avoiding the problem of low utilization efficiency of frequency resources caused by the interference avoidance method in the related technology based on the assumption that there is a co-frequency GSO satellite at each orbital position within the geostationary orbit arc segment. While realizing interference avoidance, the utilization rate of frequency resources is significantly improved.

[0043] Among them, the execution subject of the above steps can be a low-earth orbit satellite, for example, an earth satellite with an orbital height lower than that of the GSO satellite, or a processor in the low-earth orbit satellite, or a processing device with communication capabilities with the low-earth orbit satellite, etc., but not limited thereto.

[0044] In an optional embodiment, when it is determined that the target ground area is covered by the first beam of the second satellite, determining whether there is a target beam based on the first data includes: when the second beam transmitted by the first satellite and covering the target ground area includes a third beam not recorded in the first data, determining the third beam as the target beam, where the interference state between a fourth beam and a fifth beam is recorded in the first data, and a second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to satisfy includes the first condition, the fifth beam is a beam transmitted by the fourth satellite and covering the target ground area, the fourth satellite is a GSO satellite corresponding to the first operation information obtained by the third satellite in the previous operation cycle, the fourth satellite includes the second satellite, and the fourth beam is a beam included in the second beam and having a frequency overlap with the fifth beam.

[0045] In the above step, when the second beam includes a third beam not recorded in the first data, it is determined that the third beam is a beam that does not overlap in frequency with the first beam and is included in the predetermined conditions. Exemplarily, when there are multiple third beams, the target beam is determined from the multiple third beams based on the required service type of the target object and the coverage range, communication capacity, and anti-interference ability of each third beam.

[0046] In the above steps, exemplarily, the first data records the interference status of the low Earth orbit (LEO) satellite beam and the geostationary orbit (GSO) satellite beam with overlapping frequencies and coverage areas, and the angular range within which the isolation angle between the beams corresponding to the interference status should be. When the frequencies of the LEO satellite beam and the GSO satellite beam do not overlap and / or the ground areas they cover do not overlap, there is no interference between the beams. Exemplarily, for a set of beams with overlapping frequencies and coverage areas, when the ground area of the overlapping coverage remains unchanged while the frequency of one or both of the beams changes, the interference status of the set of beams after the change is different from that before the change, and the angular range within which the isolation angle between the beams of the set of beams should be after the change in the interference status may be the same as or different from the angular range within which the isolation angle should be before the change. For example, when the overlapping interval of the frequencies remains unchanged before and after the change in the interference status, the angular range within which the isolation angle between the beams should be remains unchanged. The interference status of the fourth beam and the fifth beam includes, but is not limited to, the overlapping bandwidth of the frequencies of the fourth beam and the fifth beam, the grid numbers of the ground area covered by the overlapping coverage of the fourth beam and the fifth beam, etc. The second condition includes, but is not limited to, the angular range within which the isolation angle between the fourth beam and the fifth beam should be. When the ground area covered by the overlapping coverage of the fourth beam and the fifth beam includes multiple ground areas with grid numbers, the interference status of the fourth beam and the fifth beam includes multiple interference sub-states, and the angular range within which the isolation angle corresponding to each interference sub-state should be. Exemplarily, Table 1 is the data table of the first data.

[0047] Table 1

[0048]

[0049] In the above steps, by determining the beam in the first satellite with a frequency different from that of the first beam as the target beam and providing services to the target object through the target beam, interference between the target beam and the first beam during the process of serving the target object can be avoided, thereby improving the stability and reliability of the service and ensuring the service quality.

[0050] In an alternative embodiment, when it is determined that the target ground area is covered by the first beam of the second satellite, determining whether there is a target beam among the beams emitted by the first satellite based on the first data further includes: when the third beam is not included in the second beam, determining the isolation angle between the sixth beam and the first beam based on the first data, where the sixth beam is the beam included in the fourth beam that overlaps with the frequency of the second satellite; when the isolation angle between the sixth beam and the first beam meets the third condition, determining the sixth beam as the target beam, where the second condition includes the third condition.

[0051] In the above steps, by way of example, the third condition includes, but is not limited to, the angular range in which the isolation angle between the first beam and the sixth beam should be. In the case where the ground area overlapped and covered by the first beam and the sixth beam includes ground areas with multiple grid numbers, the interference state between the first beam and the sixth beam includes multiple interference sub-states, and the angular range in which the isolation angle corresponding to each interference sub-state should be.

[0052] In an alternative embodiment, after determining the target ground area where the above target object is located, the method further includes: when it is determined that the target ground area is covered by the first beam and there is no such target beam, determining whether there is a fifth satellite in the satellite system whose transmitted seventh beam covers the target ground area and meets the above predetermined conditions, where the fifth satellite is different from the first satellite; when it is determined that there is the fifth satellite, instructing the fifth satellite to provide services for the target object through the seventh beam.

[0053] In the above steps, the fifth satellite includes, but is not limited to, a Low Earth Orbit (LEO) satellite. The fifth satellite may be the same as or different from the third satellite.

[0054] In an alternative embodiment, the method further includes: in the previous operating cycle, the third satellite obtains the above first operating information of each GSO satellite detected by the third satellite; the third satellite sends the first operating information to the ground terminal device to instruct the ground terminal device to generate the first data based on the first operating information.

[0055] In the above steps, the operating cycle includes, but is not limited to, the regression cycle of the third satellite. By way of example, the operating cycle includes, but is not limited to, 18 days, 20 days, 22 days, etc. The first operating information includes, but is not limited to, the GSO orbital positions, polarization modes, frequency bandwidths occupied by GSO downlink signals, center frequencies used by GSO downlink signals, ground grid areas covered by GSO, etc. of the respective GSO satellites that are detected to send downlink signals to the ground.

[0056] In the above steps, by sending the operating information of the GSO satellites collected in the previous operating cycle to the ground terminal, the ground terminal can determine the first data used for interference avoidance operations in the next operating cycle based on the operating information of the GSO satellites in the previous cycle, so that the interference avoidance operations can be flexibly adjusted in a timely manner according to the changes in the operating states of the GSO satellites, thereby improving the flexibility and real-time performance of interference avoidance.

[0057] In an optional embodiment, before the third satellite obtains the first operation information of each GSO satellite detected by the third satellite during the previous operation cycle, the method further includes: during the current operation cycle, the third satellite receives in real time the downlink signals sent by each GSO satellite detected by the third satellite, and determines the second operation information of the GSO satellite based on the downlink signals; the third satellite sends the second operation information to the ground terminal device to instruct the ground terminal device to perform the following operations: update the first data according to the second operation information and synchronize the updated first data to the third satellite.

[0058] In the above steps, by receiving in real time the downlink signals sent by each GSO satellite and determining the operation information of each GSO satellite according to the downlink signals, the accuracy and real-time nature of the collected operation information are ensured, thereby ensuring the accuracy and real-time nature of the first data used by the ground terminal to determine the interference avoidance operation, and ensuring the effectiveness of the interference avoidance operation.

[0059] In an optional embodiment, receiving in real time the downlink signals sent by each GSO satellite detected by the third satellite includes: the third satellite scans the GSO satellite arc segment based on the first antenna carried on the third satellite to obtain the downlink signals, where the main lobe of the first antenna points to the orbital position of the GSO satellite, the back lobe points to the ground area, and the polarization mode of the first antenna is the same as that of the receiving end of the GSO satellite.

[0060] In the above steps, the first antenna includes, but is not limited to, a ground-reverse receiving antenna (for example, a phased array antenna). Exemplarily, during the in-orbit operation of the first satellite, the phased array antenna scans the GSO arc segment and records the GSO orbital position, center frequency point, polarization mode, bandwidth, signal strength, and grid number of the ground area covered by the GSO satellite with a downlink signal. The main lobe of the phased array antenna points to the GSO satellite orbital position, and the back lobe points to the ground area. The grid number of the ground area adopts the ground grid coding method of the low-Earth orbit communication constellation, and the phased array antenna adopts the same polarization mode as the ground GSO receiving terminal (the polarization mode of the phased array antenna can be switched).

[0061] In the above steps, by using an antenna with the same polarization mode as the ground GSO receiving terminal, the main lobe pointing to the GSO satellite orbital position, and the back lobe pointing to the ground area to receive the downlink signals of the GSO satellite, the efficiency and accuracy of signal reception can be improved, thereby ensuring the accuracy of the determined operation information.

[0062] In an optional embodiment, the above satellite system includes: a low-Earth orbit satellite system. Exemplarily, the above low-Earth orbit satellite system includes: one or more low-Earth orbit satellites, and the above low-Earth orbit satellites include, but are not limited to, satellites with an orbital altitude in the range of 200 kilometers to 3000 kilometers.

[0063] In this embodiment, a method for interference avoidance running on a ground terminal device is also provided. Figure 3 It is the flow of the interference avoidance method according to the embodiment of the present invention. Figure 2 , as Figure 3 shown, this flow includes the following steps:

[0064] Step S302, receiving first operation information sent by a third satellite, where the above first operation information is the operation information of each geostationary orbit GSO satellite detected by the above third satellite in the previous operation cycle, and the orbital altitude of the above third satellite is lower than the orbital altitude of the above GSO satellite;

[0065] Step S304, determining first data based on the above first operation information;

[0066] Step S306, sending the above first data to the above third satellite, so that when there is a target object to be served in the above first satellite included in the above third satellite and the target ground area where the above target object is located is covered by the first beam of a second satellite, based on the above first data, it is determined whether there is a target beam in the beam emitted by the above first satellite, and when there is the above target beam, the above target object is served through the above target beam, where the above third satellite is a satellite included in the satellite system where the above first satellite is located, the above target beam is a beam covering the above target ground area and meeting a predetermined condition, the above predetermined condition includes: not overlapping with the frequency of the above first beam, or, when overlapping with the frequency of the above first beam, the isolation angle with the above first beam meets a first condition, and the above second satellite is a geostationary orbit GSO satellite.

[0067] In the above step S302, the ground-end device includes, but is not limited to, the device of a ground station for managing and controlling a satellite network. For example, it includes a base station, a module on the base station, or a processing device capable of communicating with the base station, etc. The above first operation information includes, but is not limited to: the GSO orbital positions, polarization modes, frequency bandwidths occupied by GSO downlink signals, center frequencies used by GSO downlink signals, ground grid areas covered by GSO, etc. of each GSO satellite that sent downlink signals to the ground in the previous operation cycle detected by the third satellite. The above operation cycle includes, but is not limited to: the regression cycle of the third satellite. The above operation cycle includes, but is not limited to: 18 days, 20 days, 22 days, etc. Exemplarily, the above third satellite includes, but is not limited to, a low Earth orbit (LEO) satellite. The above third satellite includes, but is not limited to: including the first satellite, or not including the first satellite. In the case where the first satellite is included in the above third satellite, the first operation information of the GSO satellite obtained in the previous operation cycle includes, but is not limited to: obtained by each satellite included in the above third satellite, or obtained by the first satellite, or obtained by other satellites included in the above third satellite except the first satellite.

[0068] In the above step S306, the above target object includes, but is not limited to: communication devices, navigation and positioning devices, remote sensing and detection devices, scientific experiment devices, Internet of Things devices, etc. The above target ground area includes, but is not limited to: a ground area with one or more grid numbers. The above first satellite includes, but is not limited to: a low Earth orbit (LEO) satellite. The above first condition includes, but is not limited to: the angular range in which the isolation angle between the target beam and the above first beam should be.

[0069] Before the above step S304, the above method further includes: the ground-end device establishes a dynamic database according to the received first operation information and periodically updates the information in the dynamic database, where the update period of the dynamic database is greater than or equal to the operation cycle of the third satellite. Exemplarily, the ground-end device compares the operation information of the GSO satellite obtained in the previous operation cycle sent by the third satellite each time with the operation information sent by the third satellite last time. In the case of different information, the dynamic database is updated based on the different information. Exemplarily, the above dynamic database includes, but is not limited to, operation data tables recording each GSO satellite. Among them, each data table records the frequency usage mode of each GSO satellite when covering different ground grid areas. Table 2 is the frequency usage mode table of GSO satellites. Exemplarily, the above ground end determines the above first data according to the frequency usage mode of each GSO satellite recorded in the above dynamic database when covering different ground grid areas.

[0070] Table 2 Frequency Usage Mode Table of GSO Satellites (Single Ground Grid)

[0071]

[0072] In the above steps, the first data used for the first satellite to perform interference avoidance operations in the next operating cycle is determined based on the operating information of the GSO satellite obtained according to the previous operating cycle sent by the third satellite and sent to the first satellite, so that when the target ground area where the target object to be served is located is covered by the GSO satellite (i.e., the second satellite), based on the first data, the target beam that meets the predetermined conditions in the beams that the first satellite can cover the target ground area can be determined to provide services for the target object, thereby avoiding interference between the beam of the first satellite and the GSO covering the target ground area during the process of providing services for the target object, realizing interference avoidance between beams, improving the stability and reliability of the service, ensuring the service quality, and avoiding the problem of low utilization efficiency of frequency resources caused by the interference avoidance method in the related art based on the assumption that there are co-frequency GSO satellites at each orbital position within the geostationary orbit arc during interference avoidance, and significantly improving the utilization rate of frequency resources while realizing interference avoidance.

[0073] In an optional embodiment, the interference state between the fourth beam and the fifth beam is recorded in the above first data, and the second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to meet includes the first condition. The fifth beam is the beam emitted by the fourth satellite covering the target ground area, the fourth satellite is the GSO satellite that obtained the above first operating information in the previous operating cycle by the third satellite, the fourth satellite includes the second satellite, the fourth beam is the beam included in the second beam that overlaps in frequency with the fifth beam, the second beam is the beam emitted by the first satellite covering the target ground area, and the second condition is determined according to the frequency overlap situation between the fourth beam and the fifth beam.

[0074] In the above steps, by way of example, the first data records the interference status of the low Earth orbit (LEO) satellite beam and the geostationary orbit (GSO) satellite beam with overlapping frequencies and coverage areas, and the angular range within which the isolation angle between the beams corresponding to the interference status should be. When the frequencies of the LEO satellite beam and the GSO satellite beam do not overlap and / or the ground areas covered do not overlap, there is no interference between the beams. By way of example, for a set of beams with overlapping frequencies and coverage areas, when the ground area of the overlapping coverage remains unchanged while the frequency of one or both of the beams changes, the interference status of the set of beams after the change is different from that before the change, and the angular range within which the isolation angle between the beams should be after the change of the interference status of the set of beams may be the same as or different from the angular range within which the isolation angle should be before the change. For example, when the overlapping interval of the frequencies remains unchanged before and after the change of the interference status, the angular range within which the isolation angle between the beams should be remains unchanged. The interference status of the fourth beam and the fifth beam includes, but is not limited to, the overlapping bandwidth of the frequencies of the fourth beam and the fifth beam, the grid numbers of the ground area covered by the overlapping coverage of the fourth beam and the fifth beam, etc. The second condition includes, but is not limited to, the angular range within which the isolation angle between the fourth beam and the fifth beam should be. When the ground area covered by the overlapping coverage of the fourth beam and the fifth beam includes a ground area with multiple grid numbers, the interference status of the fourth beam and the fifth beam includes multiple interference sub-states, and the angular range within which the isolation angle corresponding to each interference sub-state should be.

[0075] In an alternative embodiment, determining the first data based on the above first operation information includes: determining the interference status of the fourth beam and the fifth beam based on the above first operation information, where the interference status of the fourth beam and the fifth beam includes: the target overlapping bandwidth of the frequencies of the fourth beam and the fifth beam; determining the second condition based on the target overlapping bandwidth.

[0076] In the above steps, the second condition includes, but is not limited to, the angular range within which the isolation angle between the fourth beam and the fifth beam should be. The angular range within which the isolation angle between the fourth beam and the fifth beam should be includes, but is not limited to, being determined by the overlapping bandwidth of the beam frequencies of the fourth beam and the fifth beam. By way of example, Table 3 is a table showing the determination method of the isolation angle. The determination method of the isolation angle shown in Table 3 is only an example. The determination method of the isolation angle can be preset, and the corresponding relationship between the overlapping bandwidth and the isolation angle can be adjusted according to different application scenarios. For example, for different first satellites, the corresponding relationship between the overlapping bandwidth and the isolation angle is not exactly the same.

[0077] Table 3 Table showing the determination method of the isolation angle

[0078]

[0079] In an optional embodiment, sending the first data to the third satellite includes: when it is determined that there is first difference information between the first data and historical first data, sending the first difference information to the third satellite to instruct the third satellite to update the stored first data based on the first difference information, where the historical first data is data determined based on the operation information of each geostationary orbit (GSO) satellite detected by the third satellite in the operation cycle before the previous operation cycle.

[0080] In the above step, by sending the first difference information to the first satellite to instruct the first satellite to update the stored first data based on the first difference information when there is first difference information between the first data and historical first data, the real-time property and accuracy of the first data in the first satellite are ensured. At the same time, only sending the first difference information to the first satellite for update significantly reduces the amount of data to be transmitted and reduces resource consumption.

[0081] In an optional embodiment, when it is determined that there is first difference information between the first data and historical first data, the method further includes: the ground terminal device updates the historical first data according to the first difference information, or the ground terminal device replaces the historical first data with the first data.

[0082] In an optional embodiment, sending the first data to the first satellite includes: when it is determined that there is first difference information between the first data and historical first data, sending the first data to the first satellite to instruct the first satellite to update the stored first data based on the first difference information.

[0083] In an optional embodiment, after sending the first data to the third satellite, the method further includes: receiving second operation information sent by the third satellite, where the second operation information is the operation information of the GSO satellites determined by the third satellite in the current operation cycle based on the downlink signals received in real time from each GSO satellite detected by the third satellite; generating target first data based on the second operation information; when it is determined that there is second difference information between the target first data and the first data, sending the second difference information to the third satellite to instruct the third satellite to update the currently stored first data based on the second difference information.

[0084] In an optional embodiment, the above satellite system includes: a low-earth orbit (LEO) satellite system. Exemplarily, the LEO satellite system includes: one or more LEO satellites, and the LEO satellites include, but are not limited to, satellites with an orbital altitude in the range of 200 kilometers to 3000 kilometers.

[0085] The following describes the solution in this application in detail with specific embodiments:

[0086] FIG. 4(A) is a flowchart of an interference avoidance method according to an embodiment of the present invention Figure 3 , as shown in FIG. 4(A), specifically includes the following steps:

[0087] Step S402: The LEO satellite monitors the frequency usage information of the geostationary orbit (GSO) satellites in the GSO arc through a ground-facing reverse receiving antenna carried on the LEO satellite to obtain monitoring data of the GSO satellites, and after one regression period, sends the monitoring data to the ground terminal device;

[0088] Step S404: The ground terminal device sorts out and fuses the monitoring data to obtain a database, determines first data based on the information in the database, and uploads the first data to the LEO satellite. Among them, the database records the frequency usage patterns of the GSO satellites, and the first data records the interference status of the GSO satellites whose transmitted beams overlap in frequency and the covered ground area with the beams transmitted by the LEO satellite, as well as the predetermined angles of the isolation angles corresponding to the interference status;

[0089] Step S406: The LEO satellite performs an interference avoidance operation based on the first data.

[0090] In the above step S402, the ground-facing reverse receiving antenna includes, but is not limited to, a phased array antenna. The main lobe of the ground-facing reverse receiving antenna points to the GSO satellite orbit position, and the back lobe points to the ground area. The ground-facing reverse receiving antenna uses the same polarization method as the ground receiving terminal of the GSO. The monitoring data includes, but is not limited to, the orbit position, center frequency point, polarization method, bandwidth, signal strength, and grid number of the ground area covered by the GSO satellites that send downlink signals obtained by scanning the GSO arc through the ground-facing reverse receiving antenna during the in-orbit operation of the LEO satellite, etc.

[0091] In the above step S404, the first data includes the data table shown in Table 1, the database includes the GSO satellite frequency usage patterns shown in Table 2, the predetermined angle in the database is determined according to the overlapping bandwidth of the frequencies of the beams transmitted by the GSO satellites and the beams transmitted by the LEO satellite, and the determination method of the predetermined angle is shown in Table 3.

[0092] Figure 4(B) is the fourth flowchart of the interference avoidance method according to an embodiment of the present invention. As shown in Figure 4(B), the specific step S406 includes the following steps:

[0093] Step S4061: When it is determined that there is a target object to be served, determine the target ground area where the target object is located;

[0094] Step S4062: When it is determined that there is a second satellite, determine the number of second satellites, where the second satellite is a GSO satellite whose first beam covers the target ground area;

[0095] Step S4063: Determine whether the number of second satellites is multiple. If so, jump to step S4066; if not, jump to step S4064;

[0096] Step S4064: Determine whether there is a target beam in the beams emitted by the low-earth orbit satellite, where the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets the first condition;

[0097] Step S4065: When it is determined that there is a target beam, use the target beam to serve the target object;

[0098] Step S4066: For each second satellite, perform the following operations: Determine whether there is a target beam in the beams emitted by the first satellite, where the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets the first condition;

[0099] Step S4067: When there is the same target beam among the target beams corresponding to multiple second satellites, use the same target beam to serve the target object; when there is no same target beam, use other low-earth orbit satellites in the satellite system where the low-earth orbit satellite is located to serve the target object.

[0100] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0101] In this embodiment, an interference avoidance device is further provided. This device is used to implement the above embodiments and preferred embodiments, and those that have been described will not be repeated. As used hereinafter, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0102] Figure 5 is the structural block diagram of the interference avoidance device according to an embodiment of the present invention Figure 1 , this device is applied to the first satellite, as Figure 5 shown, this device 50 includes: a memory 502, a processor 504, and a computer program stored on the above memory and executable on the above processor. When the above processor executes the above computer program, the following operations are implemented: when it is determined that there is a target object to be served, determine the target ground area where the above target object is located; when it is determined that the above target ground area is covered by the first beam of the second satellite, based on the first data, determine whether there is a target beam in the beams emitted by the above first satellite, where the above target beam is a beam that covers the above target ground area and meets a predetermined condition, and the above predetermined condition includes: not overlapping with the frequency of the above first beam, or, when overlapping with the frequency of the above first beam, the isolation angle with the above first beam meets the first condition. The above second satellite is a geostationary orbit GSO satellite, and the above first data is determined according to the first operation information of the GSO satellite obtained by the third satellite in the previous operation period. The above third satellite is a satellite included in the satellite system where the above first satellite is located, and the orbital height of the above third satellite is lower than the orbital height of the above second satellite; when there is the above target beam, serve the above target object through the above target beam.

[0103] In one embodiment, when the above-mentioned processor 504 executes the above-mentioned computer program, it can determine whether there is a target beam based on the first data in the following manner when it is determined that the target ground area is covered by the first beam of the second satellite: when the third beam not recorded in the first data is included in the second beam transmitted by the first satellite and covering the target ground area, the third beam is determined as the target beam, where the interference state between the fourth beam and the fifth beam is recorded in the first data, and the second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to meet includes the first condition, the fifth beam is the beam transmitted by the fourth satellite and covering the target ground area, the fourth satellite is the GSO satellite corresponding to the first operation information obtained by the third satellite in the previous operation cycle, the fourth satellite includes the second satellite, and the fourth beam is the beam included in the second beam and having a frequency overlap with the fifth beam.

[0104] In one embodiment, when the above-mentioned processor 504 executes the above-mentioned computer program, it can also determine whether there is a target beam in the beam transmitted by the first satellite based on the first data in the following manner when it is determined that the target ground area is covered by the first beam of the second satellite: when the third beam is not included in the second beam, determine the isolation angle between the sixth beam and the first beam based on the first data, where the sixth beam is the beam included in the fourth beam and having a frequency overlap with the second satellite; when the isolation angle between the sixth beam and the first beam meets the third condition, the sixth beam is determined as the target beam, where the second condition includes the third condition.

[0105] In one embodiment, when the above-mentioned processor 504 executes the above-mentioned computer program, the following operations can also be implemented: after determining the target ground area where the target object is located, when it is determined that the target ground area is covered by the first beam and there is no target beam, determine whether there is a fifth satellite in the satellite system whose transmitted seventh beam covers the target ground area and meets the above-mentioned predetermined conditions, where the fifth satellite is different from the first satellite; when it is determined that there is the fifth satellite, instruct the fifth satellite to provide services for the target object through the seventh beam.

[0106] In one embodiment, when the above-mentioned processor 504 executes the above-mentioned computer program, the following operations can also be implemented: in the previous operation cycle, the third satellite obtains the first operation information of each GSO satellite detected by the third satellite; the third satellite sends the first operation information to the ground terminal device to instruct the ground terminal device to generate the first data based on the first operation information.

[0107] In one embodiment, when the above-mentioned processor 504 executes the above-mentioned computer program, the following operations may also be implemented: Before the third satellite obtains the above-mentioned first operation information of each GSO satellite detected by the third satellite during the previous operation cycle, the third satellite, during the current operation cycle, receives in real time the downlink signals sent by each GSO satellite detected by the third satellite, and determines the second operation information of the GSO satellite based on the above-mentioned downlink signals; the third satellite sends the above-mentioned second operation information to the above-mentioned ground terminal device to instruct the above-mentioned ground terminal device to perform the following operations: update the above-mentioned first data according to the above-mentioned second operation information and synchronize the updated above-mentioned first data to the third satellite.

[0108] In one embodiment, when the above-mentioned processor 504 executes the above-mentioned computer program, the downlink signals sent by each GSO satellite detected by the third satellite may also be received in real time in the following manner: The third satellite scans the GSO satellite arc segment based on the first antenna carried on the third satellite to obtain the above-mentioned downlink signals, where the main lobe of the first antenna points to the orbital position of the GSO satellite, the back lobe points to the ground area, and the polarization mode of the first antenna is the same as that of the receiving end of the GSO satellite.

[0109] In one embodiment, the above-mentioned satellite system includes: a low-earth orbit satellite system.

[0110] Figure 6 It is the structural block diagram of the interference avoidance device according to the embodiment of the present invention Figure 2 , and this device is applied to the ground terminal device, such as Figure 6As shown, the device 60 includes: a memory 602, a processor 604, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the following operations are implemented: receiving first operation information sent by a third satellite, where the first operation information is the operation information of each geostationary orbit (GSO) satellite detected by the third satellite in the previous operation cycle, and the orbit altitude of the third satellite is lower than that of the GSO satellite; determining first data based on the first operation information; sending the first data to the third satellite, so that when there is a target object to be served in the first satellite included in the third satellite and the target ground area where the target object is located is covered by the first beam of a second satellite, based on the first data, it is determined whether there is a target beam in the beams emitted by the first satellite, and when there is the target beam, the target object is served through the target beam, where the third satellite is a satellite included in the satellite system where the first satellite is located, the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition, and the second satellite is a geostationary orbit (GSO) satellite.

[0111] In one embodiment, the first data records the interference state between a fourth beam and a fifth beam, and a second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to meet. The second condition includes the first condition. The fifth beam is a beam emitted by a fourth satellite that covers the target ground area. The fourth satellite is a GSO satellite from which the third satellite obtained the first operation information in the previous operation cycle. The fourth satellite includes the second satellite. The fourth beam is a beam included in the second beam that overlaps in frequency with the fifth beam. The second beam is a beam emitted by the first satellite that covers the target ground area. The second condition is determined according to the frequency overlap situation between the fourth beam and the fifth beam.

[0112] In one embodiment, when the processor 604 executes the computer program, the first data can also be determined based on the first operation information in the following manner: determining the interference state between the fourth beam and the fifth beam based on the first operation information, where the interference state between the fourth beam and the fifth beam includes: the target frequency overlap bandwidth between the fourth beam and the fifth beam; determining the second condition based on the target frequency overlap bandwidth.

[0113] In one embodiment, when the processor 604 executes the computer program, the first data may also be sent to the third satellite in the following manner: when it is determined that there is first difference information between the first data and historical first data, the first difference information is sent to the third satellite to instruct the third satellite to update the stored first data based on the first difference information, where the historical first data is data determined based on the operation information of each geostationary orbit (GSO) satellite detected by the third satellite in the operation cycle before the previous operation cycle.

[0114] In one embodiment, when the processor 604 executes the computer program, the following operations may also be implemented: after sending the first data to the third satellite, the second operation information sent by the third satellite is received, where the second operation information is the operation information of the GSO satellites determined by the third satellite based on the downlink signals received in real time from each GSO satellite detected by the third satellite in the current operation cycle; target first data is generated based on the second operation information; when it is determined that there is second difference information between the target first data and the first data, the second difference information is sent to the third satellite to instruct the third satellite to update the currently stored first data based on the second difference information.

[0115] In one embodiment, the satellite system includes: a low-earth orbit satellite system.

[0116] It should be noted that the above-mentioned respective modules may be implemented by software or hardware. For the latter, it may be implemented in the following manner, but not limited thereto: all the above-mentioned modules are located in the same processor; or, the above-mentioned respective modules are separately located in different processors in any combination form.

[0117] An embodiment of the present invention also provides a computer-readable storage medium, in which a computer program is stored, where the computer program is configured to execute the steps in any one of the above method embodiments when running.

[0118] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to: various media such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disc that can store a computer program.

[0119] An embodiment of the present invention further provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0120] In an exemplary embodiment, the above electronic device may further include a transmission device and an input / output device. Among them, the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0121] An embodiment of the present invention further provides a computer program product. The above computer program product includes a computer program, and when the computer program is executed by a processor, it implements the steps in any one of the above method embodiments.

[0122] Specific examples in this embodiment may refer to the examples described in the above embodiments and exemplary embodiments, and will not be repeated here.

[0123] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. They can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order than here, or they can be separately made into individual integrated circuit modules, or multiple modules or steps among them can be made into a single integrated circuit module to implement. In this way, the present invention is not limited to any specific combination of hardware and software.

[0124] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for interference avoidance, characterized in that, Applied to the first satellite, the method includes: When it is determined that there is a target object to be served, determining the target ground area where the target object is located; When it is determined that the target ground area is covered by the first beam of the second satellite, determining whether there is a target beam in the beams emitted by the first satellite based on the first data, where the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition. The second satellite is a geostationary orbit GSO satellite, the first data is determined according to the first operation information of the GSO satellite obtained by the third satellite in the previous operation period, the third satellite is a satellite included in the satellite system where the first satellite is located, and the orbital altitude of the third satellite is lower than the orbital altitude of the second satellite; When there is the target beam, serving the target object through the target beam.

2. The method according to claim 1, wherein When it is determined that the target ground area is covered by the first beam of the second satellite, determining whether there is a target beam based on the first data includes: When the third beam not recorded in the first data is included in the second beam emitted by the first satellite that covers the target ground area, determining the third beam as the target beam, where the interference state between the fourth beam and the fifth beam is recorded in the first data, and the second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to meet includes the first condition. The fifth beam is a beam emitted by the fourth satellite that covers the target ground area, the fourth satellite is the GSO satellite corresponding to the first operation information obtained by the third satellite in the previous operation period, the fourth satellite includes the second satellite, and the fourth beam is a beam included in the second beam that overlaps with the fifth beam in frequency.

3. The method according to claim 2, characterized in that, When it is determined that the target ground area is covered by the first beam of the second satellite, determining whether there is a target beam in the beams emitted by the first satellite based on the first data further includes: When the third beam is not included in the second beam, determining the isolation angle between the sixth beam and the first beam based on the first data, where the sixth beam is a beam included in the fourth beam that overlaps with the second satellite in frequency; When the isolation angle between the sixth beam and the first beam meets the third condition, determining the sixth beam as the target beam, where the second condition includes the third condition.

4. The method according to claim 3, characterized in that, After determining the target ground area where the target object is located, the method further includes: When it is determined that the target ground area is covered by the first beam and there is no target beam, determining whether there is a fifth satellite in the satellite system whose emitted seventh beam covers the target ground area and meets the predetermined condition, where the fifth satellite is different from the first satellite; When it is determined that the fifth satellite exists, instruct the fifth satellite to provide services to the target object through the seventh beam.

5. The method according to claim 1, characterized in that The method further includes: In the previous operating cycle, the third satellite obtains the first operating information of each GSO satellite detected by the third satellite; The third satellite sends the first operating information to the ground terminal device to instruct the ground terminal device to generate the first data based on the first operating information.

6. The method according to claim 5, wherein Before the third satellite obtains the first operating information of each GSO satellite detected by the third satellite in the previous operating cycle, the method further includes: In the current operating cycle, the third satellite receives in real time the downlink signals sent by each GSO satellite detected by the third satellite, and determines the second operating information of the GSO satellite based on the downlink signals; The third satellite sends the second operating information to the ground terminal device to instruct the ground terminal device to perform the following operations: update the first data according to the second operating information and synchronize the updated first data to the third satellite.

7. The method according to claim 6, wherein Receiving in real time the downlink signals sent by each GSO satellite detected by the third satellite includes: The third satellite scans the GSO satellite arc segment based on the first antenna carried on the third satellite to obtain the downlink signal, where the main lobe of the first antenna points to the orbit position of the GSO satellite, the back lobe points to the ground area, and the polarization mode of the first antenna is the same as that of the receiving end of the GSO satellite.

8. The method according to any one of claims 1-7, characterized in that, The satellite system includes: a low-earth orbit satellite system.

9. A method for interference avoidance, characterized in that, Applied to a ground terminal device, the method includes: Receiving the first operating information sent by the third satellite, where the first operating information is the operating information of each geostationary orbit GSO satellite detected by the third satellite in the previous operating cycle, and the orbital altitude of the third satellite is lower than the orbital altitude of the GSO satellite; Determining the first data based on the first operating information; Sending the first data to the third satellite, so that when there is a target object to be served in the first satellite included in the third satellite and the target ground area where the target object is located is covered by the first beam of the second satellite, based on the first data, it is determined whether there is a target beam in the beams emitted by the first satellite, and when the target beam exists, serving the target object through the target beam, where the third satellite is a satellite included in the satellite system where the first satellite is located, the target beam is a beam that covers the target ground area and meets a predetermined condition, the predetermined condition includes: not overlapping with the frequency of the first beam, or, when overlapping with the frequency of the first beam, the isolation angle with the first beam meets the first condition, and the second satellite is a geostationary orbit GSO satellite.

10. The interference avoidance method according to claim 9, characterized in that, The first data records the interference state between the fourth beam and the fifth beam, and the second condition that the isolation angle between the fourth beam and the fifth beam corresponding to the interference state needs to satisfy. The second condition includes the first condition. The fifth beam is a beam transmitted by a fourth satellite that covers the target ground area. The fourth satellite is a GSO satellite that obtained the first operation information by the third satellite in the previous operation cycle. The fourth satellite includes the second satellite. The fourth beam is a beam included in the second beam that overlaps in frequency with the fifth beam. The second beam is a beam transmitted by the first satellite that covers the target ground area. The second condition is determined according to the frequency overlap situation between the fourth beam and the fifth beam.

11. The method according to claim 10, wherein Determining the first data based on the first operation information includes: Determining the interference state between the fourth beam and the fifth beam based on the first operation information, where the interference state between the fourth beam and the fifth beam includes: the target frequency overlap bandwidth between the fourth beam and the fifth beam; Determining the second condition based on the target frequency overlap bandwidth.

12. The method according to claim 9, characterized in that Sending the first data to the third satellite includes: In the case where it is determined that there is first difference information between the first data and historical first data, sending the first difference information to the third satellite to instruct the third satellite to update the stored first data based on the first difference information, where the historical first data is data determined based on the operation information of each geostationary orbit GSO satellite detected by the third satellite in the operation cycle before the previous operation cycle.

13. The method according to claim 9, wherein After sending the first data to the third satellite, the method further includes: Receiving second operation information sent by the third satellite, where the second operation information is the operation information of the GSO satellite determined by the third satellite in the current operation cycle based on the downlink signals received in real time from each GSO satellite detected by the third satellite; Generating target first data based on the second operation information; In the case where it is determined that there is second difference information between the target first data and the first data, sending the second difference information to the third satellite to instruct the third satellite to update the currently stored first data based on the second difference information.

14. The method according to any one of claims 9-13, characterized in that, The satellite system includes: a low-earth orbit satellite system.

15. An interference avoidance device, applied to a first satellite, the device comprising: A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the computer program, the following operations are implemented: In the case where it is determined that there is a target object to be served, determining the target ground area where the target object is located; When it is determined that the target ground area is covered by the first beam of the second satellite, it is determined whether there is a target beam in the beams transmitted by the first satellite based on the first data, where the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, in the case of overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition. The second satellite is a geostationary orbit GSO satellite, the first data is determined according to the first operation information of the GSO satellite obtained by the third satellite in the previous operation period, the third satellite is a satellite included in the satellite system where the first satellite is located, and the orbital altitude of the third satellite is lower than the orbital altitude of the second satellite; When there is the target beam, serve the target object through the target beam.

16. An interference avoidance device, applied to a ground-end device, the device comprising: A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the computer program, the following operations are implemented: Receive the first operation information sent by the third satellite, where the first operation information is the operation information of each geostationary orbit GSO satellite detected by the third satellite in the previous operation period, and the orbital altitude of the third satellite is lower than the orbital altitude of the GSO satellite; Determine the first data based on the first operation information; Send the first data to the third satellite, so that when there is a target object to be served in the first satellite included in the third satellite and the target ground area where the target object is located is covered by the first beam of the second satellite, it is determined whether there is a target beam in the beams transmitted by the first satellite based on the first data, and when there is the target beam, serve the target object through the target beam, where the third satellite is a satellite included in the satellite system where the first satellite is located, the target beam is a beam that covers the target ground area and meets a predetermined condition, and the predetermined condition includes: not overlapping with the frequency of the first beam, or, in the case of overlapping with the frequency of the first beam, the isolation angle with the first beam meets a first condition. The second satellite is a geostationary orbit GSO satellite.

17. A computer-readable storage medium, characterized in that, A computer program is stored in the computer-readable storage medium, where when the computer program is executed by a processor, the steps of the method described in any one of claims 1 to 8 are implemented, or the steps of the method described in any one of claims 9 to 14 are implemented.

18. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, the steps of the method described in any one of claims 1 to 8 are implemented, or the steps of the method described in any one of claims 9 to 14 are implemented.

19. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, the steps of the method described in any one of claims 1 to 8 are implemented, or the steps of the method described in any one of claims 9 to 14 are implemented.

Images