Feed link planning method, device and equipment for target constellation system

Abstract

The invention relates to the technical field of satellite communication, and provides a feed link planning method, device and equipment for a target constellation system, and the method comprises the steps: obtaining link parameters of a plurality of feed links, the link parameters comprising a resource allocation parameter, a link establishment duration parameter and a communication quality parameter; determining a link score of the feed link according to the link parameter; based on the link score, an interference avoidance strategy of the feed link is formulated, and the interference avoidance strategy comprises at least one of adjustment of satellite transmitting power, closing of the feed link and switching of the feed link; determining an interference avoidance instruction according to the interference avoidance strategy; and sending the interference avoidance instruction to the target satellite through the target feed power station, so that the target satellite executes an interference avoidance action. According to the technical scheme provided by one or more embodiments of the invention, the interference avoidance strategy can be formulated as a whole, and the problem of interference between the target constellation system and other constellation systems is solved.

Description

Technical Field

[0001] The present disclosure relates to the field of satellite communication technologies, and in particular, to a method, an apparatus, and a device for planning a feeder link of a target constellation system. Background Art

[0002] Currently, constellation (satellite) systems are developing rapidly and can provide high-speed Internet access services globally. However, the deployment of large-scale constellation systems also brings a series of technical challenges, especially the interference problems between constellation systems, such as the interference between low-earth orbit constellation systems and geostationary orbit constellation systems, the interference between medium-earth orbit constellation systems and geostationary orbit constellation systems, and the interference between low-earth orbit constellation systems and medium-earth orbit constellation systems.

[0003] The communication feeder links of different constellation systems may interfere with each other in a certain area, which may further affect the communication quality and signal stability of satellite communication, and even may cause communication interruption.

[0004] Therefore, usually a constellation system needs to take certain interference avoidance measures to protect other satellite systems. Summary of the Invention

[0005] In view of this, one or more embodiments of the present disclosure provide a method, an apparatus, and a device for planning a feeder link of a target constellation system, which can overall formulate an interference avoidance strategy for the target constellation system, instruct the satellites of the target constellation system to perform optimized interference avoidance actions, and solve the feeder link interference problem between the target constellation system and other constellation systems.

[0006] One aspect of the present disclosure provides a method for planning a feeder link of a target constellation system, the method including: obtaining link parameters of a plurality of the feeder links of the target constellation system, the link parameters including resource allocation parameters, link establishment duration parameters, and communication quality parameters; determining a link score of the feeder link according to the link parameters; formulating an interference avoidance strategy for the feeder link based on the link score, the interference avoidance strategy including at least one of adjusting the satellite transmission power, closing the feeder link, and switching the feeder link; determining an interference avoidance instruction according to the interference avoidance strategy; and sending the interference avoidance instruction to a target satellite of the target constellation system through a target feeder station of the target constellation system, so that the target satellite performs an interference avoidance action.

[0007] On the other hand, the present disclosure also provides a feeder link planning device for a target constellation system, the device comprising: an acquisition unit configured to acquire link parameters of a plurality of the feeder links of the target constellation system, the link parameters including resource allocation parameters, link establishment duration parameters, and communication quality parameters; a scoring unit configured to determine a link score of the feeder link according to the link parameters; a policy unit configured to formulate an interference avoidance policy for the feeder link based on the link score, the interference avoidance policy including at least one of adjusting the satellite transmission power, turning off the feeder link, and switching the feeder link; an instruction unit configured to determine an interference avoidance instruction according to the interference avoidance policy; and a sending unit configured to send the interference avoidance instruction to a target satellite of the target constellation system through a target feeder station of the target constellation system, so that the target satellite performs an interference avoidance action.

[0008] On the other hand, the present disclosure also provides an electronic device, the electronic device comprising a memory and a processor, the memory being configured to store a computer program, and when the computer program is executed by the processor, the method for planning a feeder link of the above-mentioned target constellation system is implemented.

[0009] On the other hand, the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium being configured to store a computer program, and when the computer program is executed by a processor, the method for planning a feeder link of the above-mentioned target constellation system is implemented.

[0010] The technical solution provided by one or more embodiments of the present disclosure can acquire link parameter information of a plurality of feeder links of a target constellation system, perform overall planning, and formulate an interference avoidance policy applicable to each feeder link. According to the link parameters, the link score of each feeder link can be determined, so that the adjustment necessity and the adjustment priority of each feeder link can be scientifically and effectively determined. According to the interference avoidance policy, an interference avoidance instruction is determined and sent to the target satellite, which can instruct different satellites to perform optimized interference avoidance actions. In this way, not only the interference problem caused by the feeder links of the target constellation system to other constellation systems is solved, but also the communication quality within the target constellation system is ensured.

[0011] The technical solution provided by one or more embodiments of the present disclosure can realize the intelligent planning of each feeder link, formulate an efficient and reliable interference adjustment scheme for the entire target constellation system, and can effectively improve the resource utilization efficiency of the target constellation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The features and advantages of the embodiments of the present disclosure will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as imposing any limitation on the present disclosure. In the drawings: Figure 1 Shows a schematic diagram of the steps of the feeder link planning method for a target constellation in one embodiment of the present disclosure; Figure 2 Shows a schematic diagram of an interference scenario of a target satellite system in one embodiment of the present disclosure; Figure 3 Shows a schematic diagram of an application scenario of the feeder link planning method for a target constellation in one embodiment of the present disclosure; Figure 4 Shows a schematic diagram of the process of the feeder link planning method for a target constellation in one embodiment of the present disclosure; Figure 5 Shows a schematic diagram of the process of the feeder link performance evaluation for a target constellation in one embodiment of the present disclosure; Figure 6 Shows a schematic diagram of the functional modules of the feeder link planning device for a target constellation in one embodiment of the present disclosure; Figure 7 Shows a schematic diagram of the structure of an electronic device in one embodiment of the present disclosure. Specific embodiments

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0014] Please refer to Figure 1 , the feeder link planning method for a target constellation system provided in one embodiment of the present disclosure may include the following multiple steps.

[0015] S1: Obtain the link parameters of multiple feeder links of the target constellation system, where the link parameters include resource allocation parameters, link establishment duration parameters, and communication quality parameters.

[0016] In this embodiment, each feeder link may represent a communication link between a satellite and a satellite feeder station. After the feeder link is formed, the attribute information of the feeder link can be measured and known, such as the communication resources allocated to the feeder link, the link establishment duration information of the feeder link, the communication quality information of the feeder link, etc.

[0017] In some embodiments, the target constellation system may be a low-earth orbit constellation system, which can solve the interference problem between the low-earth orbit constellation system and the high-earth orbit constellation system, and can also solve the interference between the low-earth orbit constellation system and the medium-earth orbit constellation system.

[0018] In some embodiments, the target constellation system may be a medium-earth orbit constellation system, which can solve the interference between the medium-earth orbit constellation system and the geosynchronous orbit constellation system.

[0019] It should be noted that the low-earth orbit constellation system, the medium-earth orbit constellation system, and the geosynchronous orbit constellation system are usually distinguished according to the height of the satellite's orbit from the earth's surface. For example, the height of the satellite's orbit in the low-earth orbit constellation system is generally between 500 and 2,000 kilometers; the height of the satellite's orbit in the medium-earth orbit constellation system is generally between 2,000 and 36,000 kilometers; the height of the satellite's orbit in the geosynchronous orbit constellation system is generally about 36,000 kilometers. When interference occurs between constellation systems, the constellation system with a relatively lower orbit executes link avoidance, and the parameters and ranges to be adjusted are relatively small, which can not only reduce the coordination complexity between constellation systems but also save coordination costs.

[0020] S2: Determine the link score of the feeder link according to the link parameters.

[0021] In this embodiment, according to the link parameters, various attribute information of the feeder link can be obtained, so that a standardized method can be adopted to scientifically evaluate the current state of each feeder link, and thus the adjustment requirements of each feeder link can be determined.

[0022] In some embodiments, the determining the link score of the feeder link according to the link parameters includes: determining a first score according to the resource allocation parameters; determining a second score according to the link establishment duration parameters; determining a third score according to the communication quality parameters; and performing weighted statistics on the first score, the second score, and the third score to determine the link score.

[0023] Specifically, to determine the link score of the feeder link, multiple scoring dimensions (resource allocation dimension, time keeping dimension, communication quality dimension) can be comprehensively considered, so as to accurately reflect whether the feeder link needs to be adjusted and the degree of adjustment. The calculation results of each scoring dimension can be weighted, so as to highlight or weaken the reference role of certain scoring dimensions. According to different actual application scenarios, the weight of each scoring dimension can be subjectively assigned (for example, input by the user) or objectively assigned (for example, pre-agreed according to industry standards).

[0024] In a practical application example, the following formula can be used to calculate the link score of the feeder link.

[0025]

[0026] Where S is the link score, , , are the first score, the second score, and the third score respectively. , , are the corresponding weights respectively. Each weight can be determined jointly by subjective weighting and objective weighting.

[0027] In some embodiments, determining the first score according to the resource allocation parameter includes: determining the current resource allocation amount, the lower limit of link establishment resources, and the upper limit of link establishment resources of the feeder link according to the resource allocation parameter; determining the difference between the current resource allocation amount and the lower limit of link establishment resources as the first factor; determining the difference between the upper limit of link establishment resources and the lower limit of link establishment resources as the second factor; and determining the ratio of the first factor to the second factor as the first score.

[0028] In a practical application example, the link establishment resources used by all feeder links (L1, L2,..., Ln) on all feeder stations of the target satellite system should be optimized, that is, the resources used by the n feeder links should be in an average state, ensuring the overall system resource allocation balance and ensuring that communication resources are evenly distributed to each feeder station. On the one hand, it is necessary to avoid a certain feeder link being in a saturated state of resource occupancy all the time; on the other hand, it is also necessary to avoid a certain feeder link being in an idle state of resources all the time.

[0029] At a certain time, assuming that the current resource allocation amount of each feeder link is , using the following conversion formula, the current resource allocation amount can be converted into a normalized index .

[0030]

[0031] Among them, represents the minimum communication resources (lower limit of link establishment resources) required to establish a feeder link, represents the maximum communication resources (upper limit of link establishment resources) that can be allocated to establish a feeder link. The normalized index can be determined as the first score. Using the first score can accurately reflect the resource allocation status of a certain feedback link.

[0032] In some embodiments, determining the second score according to the link establishment duration parameter includes: determining the current link establishment duration, the lower limit of the link establishment duration, and the upper limit of the link establishment duration of the power feeding link according to the link establishment duration parameter; determining the difference between the current link establishment duration and the lower limit of the link establishment duration as the third factor; determining the difference between the upper limit of the link establishment duration and the lower limit of the link establishment duration as the fourth factor; and determining the ratio of the third factor to the fourth factor as the second score.

[0033] In a practical application example, the link establishment durations of all power feeding links (L1, L2, ……, Ln) on all power feeding stations of the target satellite system should maintain a certain link establishment duration to ensure the optimal communication duration of the power feeding links of the satellite system. On the one hand, it is necessary to avoid a certain link being in the link establishment state all the time; on the other hand, it is also necessary to avoid a certain link being in the non-link establishment state all the time.

[0034] At a certain time, assuming that the current resource allocation amount of each power feeding link is , using the following conversion formula, the current resource allocation amount can be converted into a normalized index .

[0035]

[0036] Wherein, represents the minimum duration that needs to be maintained after the power feeding link is established (the lower limit of the link establishment duration), represents the maximum duration that can be maintained after the power feeding link is established (the upper limit of the link establishment duration). The normalized index can be determined as the second score. By using the second score, the duration maintenance state of a certain feedback link can be accurately reflected.

[0037] In some embodiments, determining the third score according to the communication quality parameter includes: determining the current signal-to-noise ratio, the lower limit of the signal-to-noise ratio, and the upper limit of the signal-to-noise ratio of the power feeding link according to the link establishment duration parameter; determining the difference between the current signal-to-noise ratio and the lower limit of the signal-to-noise ratio as the fifth factor; determining the difference between the upper limit of the signal-to-noise ratio and the lower limit of the signal-to-noise ratio as the sixth factor; and determining the ratio of the fifth factor to the sixth factor as the third score.

[0038] In a practical application example, all power feeding links (L1, L2, ……, Ln) on all power feeding stations of the target satellite system should maintain a certain communication quality to ensure the optimal link establishment quality of the power feeding links of the satellite system and ensure that the communication signal-to-noise ratio of each link is not too low.

[0039] At a certain time, assuming that the current signal-to-noise ratio of each power feeding link is , using the following conversion formula, the current resource allocation can be converted into a normalized index .

[0040]

[0041] Wherein, represents the minimum communication signal-to-noise ratio (lower limit of signal-to-noise ratio) that needs to be maintained after the feeder link is established, represents the maximum communication signal-to-noise ratio (upper limit of signal-to-noise ratio) that can be achieved after the feeder link is established. The normalized index can be determined as the third score. By using the third score, the communication quality status of a certain feedback link can be accurately reflected.

[0042] S3: Based on the link score, formulate an interference avoidance strategy for the feeder link, and the interference avoidance strategy includes at least one of adjusting the satellite transmission power, closing the feeder link, and switching the feeder link.

[0043] In this embodiment, according to the link score, it is possible to judge the necessity of adjustment for each feeder link. For example, only those that meet the preset score criteria need to be adjusted. According to the link score, it is also possible to rank the priority of each feeder link, and it is possible to determine which feeder links' interference avoidance strategies should be formulated first.

[0044] In this embodiment, the formulation of the interference avoidance strategy can be realized by using a pre-trained machine learning model, so as to select a suitable adjustment plan from options such as adjusting the satellite transmission power, closing the feeder link, and switching the feeder link for each feedback link on the premise of ensuring the overall communication efficiency of the target satellite system. In this way, the overall resource utilization efficiency of the target satellite system can be effectively improved.

[0045] In some embodiments, formulating the interference avoidance strategy for the feeder link includes determining the interference avoidance angle of the target feeder station, and the interference avoidance angle is determined based on at least one of the following parameters: the negotiated interference noise ratio threshold of the affected satellite system and the target constellation system; the satellite transmission power of the target constellation system; the satellite transmission antenna gain of the target constellation system; the included angle between the first connection line and the second connection line, where the first connection line is the connection line from the satellite of the affected satellite system to the feeder station of the affected satellite system, and the second connection line is the connection line from the satellite of the affected satellite system to the feeder station of the target constellation system; the maximum receiving gain of the antenna of the feeder station of the affected satellite system; the equivalent noise temperature of the receiver of the feeder station of the affected satellite system; the communication bandwidth of the affected satellite system; the Boltzmann constant; the transmission loss of the feeder link.

[0046] Specifically, the target constellation system implementing this method can be regarded as an interfering party's satellite system, which can actively take certain interference avoidance measures to protect other satellite systems (the disturbed party's satellite system). Negotiating the interference noise ratio threshold can represent a noise ratio threshold parameter acceptable to both the target constellation system and the disturbed party's constellation system.

[0047] It should be noted that the noise ratio threshold, satellite transmit power, satellite transmit antenna gain, satellite coordinates, feeder station coordinates, and transmission loss of the feeder link of the target constellation system are all known information of the target constellation system. The noise ratio threshold, satellite coordinates, feeder station coordinates, maximum receiving gain of the feeder station antenna, equivalent noise temperature of the receiver of the feeder station, and communication bandwidth of the disturbed party's satellite system need to be pre-sent to the target constellation system by each disturbed party's satellite system so that the target constellation system can formulate appropriate interference avoidance strategies. In this way, both the communication quality of the disturbed party's satellite system can be protected, and the communication quality of the target constellation system itself can be ensured to the greatest extent.

[0048] Please refer to Figure 2 , in the interference avoidance scenario of the target satellite system in a practical application example, the disturbed party's constellation (satellite) system is A, which consists of satellite A and feeder station A. The interfering party's constellation (satellite) system is B, which consists of satellite B and feeder station B. During the operation of the two constellation systems, interference may occur crosswise between the uplink and downlink. For example, when satellite A is collinear with satellite B and feeder station A, satellite B needs to perform angular isolation to avoid interfering with satellite A. At this time, if starting from satellite B, the interference avoidance angle of satellite B is the included angle between feeder station A - satellite B - feeder station B, that is, φmin; if starting from feeder station B, the interference avoidance angle of feeder station B is the included angle between satellite B - feeder station B - satellite A, that is, θmin. Taking the interference noise ratio I / N as the index for interference evaluation, according to the I / N threshold value (such as -12.2 dB) acceptable to both the disturbed party and the interfering party systems, the numerical value of the interference avoidance angle of satellite B or feeder station B can be deduced. For example, the interference avoidance angle of feeder station B can be expressed as:

[0049] In the formula, ( I / N ) th is the I / N threshold value acceptable to both the disturbed party's constellation system and the interfering party's constellation system, that is, the negotiated interference noise ratio threshold value, and the data unit is dB; p B is the satellite transmit power of the interfering party's constellation system B, and the data unit is dBW; G B-tx is the satellite transmit antenna gain of the interfering party's constellation system B, and the data unit is dBi; is the angle between the connection line (the first connection line) from satellite A of the disturbed party's constellation system A to feeder station A and the connection line (the second connection line) from satellite A of the disturbed party's constellation system A to feeder station B; G re-max is the maximum receiving gain of the antenna of feeder station A of the disturbed party's constellation system A, and the data unit is dBi; T is the equivalent noise temperature of the receiver of the feeder station of the disturbed party's system A, and the data unit is K; W is the communication bandwidth of the disturbed party's system A, and the data unit is Hz; k B is the Boltzmann constant, with a value of 1.38×10 −23 J / K; Loss B-UTA is the transmission loss on the interference link, and the data unit is dB.

[0050] S4: Determine an interference avoidance instruction according to the interference avoidance strategy.

[0051] S5: Send the interference avoidance instruction to the target satellite of the target constellation system through the target feeder station of the target constellation system, so that the target satellite performs an interference avoidance action.

[0052] In this embodiment, based on determining the interference avoidance strategy for each feeder link, a clear interference avoidance instruction can be generated and sent to the target feeder station or target satellite of the feeder link, so that the target feeder station or target satellite performs specific interference avoidance actions. The interference avoidance instruction can be to disconnect the feeder link, establish a new feeder link with other objects, adjust the transmission power, etc.

[0053] In some embodiments, the feeder link planning method further includes: receiving and storing the feedback signal of the target satellite; updating the link parameters according to the feedback signal; and re-determining the link score and the interference avoidance strategy by using the updated link parameters.

[0054] Specifically, after the target satellite performs an interference avoidance action, it can send a feedback signal. According to the feedback signal, the attribute information of the newly established or changed feeder link of the target satellite can be determined, and a new round of interference avoidance strategy can be formulated. In this way, each feeder link of the target satellite system can be dynamically managed to ensure that the overall communication quality and resource utilization rate of the target satellite system are maintained at a high level.

[0055] Please refer to Figure 3 and Figure 4 , the feeder link planning method provided by an embodiment of the present disclosure can be executed by a ground management unit and can include the following multiple processes.

[0056] Process 1: Build an interference avoidance link planning platform in the ground management unit. The interference avoidance link planning platform can obtain and process the link parameters of multiple feeder links of the target constellation system (corresponding to step S1 above).

[0057] Process 2: Based on the optimal link planning strategy, the interference avoidance link planning platform analyzes the interference avoidance requirements for each feeder link according to the on-board time of the satellite (for example, accurately evaluates the interference avoidance requirements of each feeder link through link scoring), including but not limited to forms such as reducing power, closing the link, and switching the link (corresponding to step S2 above).

[0058] Process 3: According to the interference avoidance requirement analysis, the interference avoidance link planning platform generates corresponding interference avoidance instructions (corresponding to step S3 and step S4 above).

[0059] Process 4: The interference avoidance link planning platform sends the generated interference avoidance instructions to the bearer network, and then uploads them to the on-board processing payload of the satellite through the network interface (corresponding to step S5 above).

[0060] Process 5: The on-board processing payload controls the satellite to perform interference avoidance actions according to the interference avoidance instructions.

[0061] Process 6: The interference avoidance link planning platform receives the interference avoidance execution response returned by the on-board processing payload, and the response result can indicate whether the satellite has successfully performed the interference avoidance action.

[0062] In this embodiment, when the satellite system runs to a specific position, the feeder link needs to perform interference avoidance actions. At this time, the satellite system will implement interference avoidance based on a certain strategy. The ground management unit is the control center of the target satellite system, which can calculate the interference avoidance strategy in advance according to the ephemeris information and carry out intelligent planning of resource allocation based on this. Through the bearer network transmission dedicated line, the protocol gateway analyzes the interference avoidance instructions indicated by the interference avoidance strategy, and uploads them to the satellite through the feeder station in the feeder channel. The on-board processing payload of the satellite processes and implements the interference avoidance instructions.

[0063] Please refer to Figure 5 , in some embodiments, an interference avoidance link planning platform can be built in the ground management unit to receive the response feedback information after the satellite receives the interference avoidance instructions. According to the response feedback information, the interference avoidance link planning platform can evaluate the effectiveness of the adjusted target satellite system. The specific process can be as follows.

[0064] Process 7: Store and record the response situations of each feedback feeder link (L1, L2,..., Ln) when executing the interference avoidance instructions, and query the latest communication quality, link establishment duration, resource allocation and other parameters of each feedback feeder link correspondingly.

[0065] Process Eight: Within a certain time window, prioritize the parameters queried in Process Seven. Through a preset machine learning model in the interference avoidance link planning platform, repeatedly record and deduce each parameter, and obtain a comprehensive score.

[0066] Process Nine: Use the evaluation strategy of the interference avoidance link planning platform to evaluate the link planning effectiveness of each feeder link.

[0067] Process Ten: The target satellite system optimizes the link planning according to the effectiveness evaluation results.

[0068] The technical solution provided by one or more embodiments of the present disclosure can obtain the link parameter information of multiple feeder links of the target constellation system, conduct overall planning, and formulate interference avoidance strategies applicable to each feeder link. According to the link parameters, the link score of each feeder link can be determined, so that the necessity of adjustment and the adjustment priority of each feeder link can be scientifically and effectively determined. According to the interference avoidance strategy, an interference avoidance instruction is determined and sent to the target satellite, which can instruct different satellites to perform optimized interference avoidance actions. In this way, not only the interference problem caused by the feeder links of the target constellation system to other constellation systems is solved, but also the communication quality within the target constellation system is ensured.

[0069] The technical solution provided by one or more embodiments of the present disclosure can realize the intelligent planning of each feeder link, formulate an efficient and reliable interference adjustment plan for the entire target constellation system, and effectively improve the resource utilization efficiency of the target constellation system.

[0070] Please refer to Figure 6 , the present disclosure also provides a feeder link planning device for a target constellation system, and the device includes: An acquisition unit 100, configured to acquire the link parameters of multiple feeder links of the target constellation system, where the link parameters include resource allocation parameters, link establishment duration parameters, and communication quality parameters; A scoring unit 200, configured to determine the link score of the feeder link according to the link parameters; A strategy unit 300, configured to formulate an interference avoidance strategy for the feeder link based on the link score, where the interference avoidance strategy includes at least one of adjusting the satellite transmission power, closing the feeder link, and switching the feeder link; An instruction unit 400, configured to determine an interference avoidance instruction according to the interference avoidance strategy; A sending unit 500, configured to send the interference avoidance instruction to the target satellite of the target constellation system through the target feeder station of the target constellation system, so that the target satellite performs interference avoidance actions.

[0071] In one embodiment, the target constellation system includes a low-earth orbit constellation system.

[0072] In one embodiment, the scoring unit 200 is specifically configured to determine a first score according to the resource allocation parameter, determine a second score according to the link establishment duration parameter, determine a third score according to the communication quality parameter, and perform weighted statistics on the first score, the second score, and the third score to determine the link score.

[0073] In one embodiment, the scoring unit 200 includes a first scoring subunit 201. The first scoring subunit 201 is specifically configured to determine the current resource allocation amount, the lower limit of link establishment resources, and the upper limit of link establishment resources of the feeder link according to the resource allocation parameter; determine the difference between the current resource allocation amount and the lower limit of link establishment resources as a first factor; determine the difference between the upper limit of link establishment resources and the lower limit of link establishment resources as a second factor; and determine the ratio of the first factor to the second factor as the first score.

[0074] In one embodiment, the scoring unit 200 includes a second scoring subunit 202. The second scoring subunit 202 is specifically configured to determine the current link establishment duration, the lower limit of link establishment duration, and the upper limit of link establishment duration of the feeder link according to the link establishment duration parameter; determine the difference between the current link establishment duration and the lower limit of link establishment duration as a third factor; determine the difference between the upper limit of link establishment duration and the lower limit of link establishment duration as a fourth factor; and determine the ratio of the third factor to the fourth factor as the second score.

[0075] In one embodiment, the scoring unit 200 includes a third scoring subunit 203. The third scoring subunit 203 is specifically configured to determine the current signal-to-noise ratio, the lower limit of signal-to-noise ratio, and the upper limit of signal-to-noise ratio of the feeder link according to the link establishment duration parameter; determine the difference between the current signal-to-noise ratio and the lower limit of signal-to-noise ratio as a fifth factor; determine the difference between the upper limit of signal-to-noise ratio and the lower limit of signal-to-noise ratio as a sixth factor; and determine the ratio of the fifth factor to the sixth factor as the third score.

[0076] In one embodiment, the policy unit 300 includes an avoidance angle subunit 301. The avoidance angle subunit 301 is specifically configured to determine the interference avoidance angle of the target feeder station, and the interference avoidance angle is determined based on at least one of the following parameters: The negotiated interference noise ratio threshold of the victim satellite system and the target constellation system; the transmit power of the satellites of the target constellation system; the transmit antenna gain of the satellites of the target constellation system; the angle between the first connection line and the second connection line, where the first connection line is the connection line from the satellite of the victim satellite system to the feeder station of the victim satellite system, and the second connection line is the connection line from the satellite of the victim satellite system to the feeder station of the target constellation system; the maximum receiving gain of the antenna of the feeder station of the victim satellite system; the equivalent noise temperature of the receiver of the feeder station of the victim satellite system; the communication bandwidth of the victim satellite system; Boltzmann's constant; the transmission loss of the feeder link.

[0077] In one embodiment, the apparatus further includes a feedback update unit 600. The feedback update unit 600 is configured to receive and store the feedback signal of the target satellite; update the link parameters according to the feedback signal; and use the updated link parameters to re-determine the link score and the interference avoidance strategy.

[0078] Each unit illustrated in the above embodiments may be specifically implemented by a computer chip or by a product with a certain function. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or any combination of these devices.

[0079] For the convenience of description, the above devices are described by dividing them into various units according to their functions. Of course, when implementing the present application, the functions of each unit may be implemented in the same or multiple software and / or hardware.

[0080] Please refer to Figure 7 , the present disclosure also provides an electronic device, where the electronic device includes a memory and a processor, and the memory is used to store a computer program. When the computer program is executed by the processor, the above-mentioned feeder link planning method for the target constellation system is implemented.

[0081] The present disclosure also provides a computer-readable storage medium, which is used to store a computer program. When the computer program is executed by a processor, the above-mentioned feeder link planning method for the target constellation system is implemented.

[0082] Among them, the processor can be a Central Processing Unit (CPU). The processor can also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., or a combination of the above types of chips.

[0083] As a non-transitory computer-readable storage medium, the memory can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. By running the non-transitory software programs, instructions, and modules stored in the memory, the processor can execute various functional applications and data processing of the processor, that is, implement the methods in the above method embodiments.

[0084] The memory can include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created by the processor, etc. In addition, the memory can include high-speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory may optionally include a memory remotely set relative to the processor, and these remote memories can be connected to the processor through a network. Examples of the above networks include, but are not limited to, the Internet, enterprise intranets, local area networks, mobile communication networks, and combinations thereof.

[0085] Those skilled in the art can understand that to implement all or part of the processes in the above method embodiments, it can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. Among them, the storage medium can be a magnetic disk, optical disk, Read-Only Memory (ROM), Random Access Memory (RAM), Flash Memory, Hard Disk Drive (abbreviation: HDD), or Solid-State Drive (SSD), etc.; the storage medium can also include a combination of the above types of memories.

[0086] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments. In particular, for the embodiments of the device, equipment, and storage medium, since they are basically similar to the method embodiments, the description is relatively simple, and reference can be made to the relevant parts of the method embodiments for the relevant content.

[0087] The above description is only for the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

[0088] Although the embodiments of the present disclosure are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present disclosure, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A method for planning a feeder link of a target constellation system, characterized in that The method includes: Obtaining link parameters of a plurality of the feeder links of the target constellation system, where the link parameters include resource allocation parameters, link establishment duration parameters, and communication quality parameters; Determining a link score of the feeder link according to the link parameters; Formulating an interference avoidance strategy for the feeder link based on the link score, where the interference avoidance strategy includes at least one of adjusting the satellite transmission power, turning off the feeder link, and switching the feeder link; Determining an interference avoidance instruction according to the interference avoidance strategy; Sending the interference avoidance instruction to a target satellite of the target constellation system through a target feeder station of the target constellation system, so that the target satellite performs an interference avoidance action.

2. The method according to claim 1, wherein The determining the link score of the feeder link according to the link parameters includes: Determining a first score according to the resource allocation parameters; Determining a second score according to the link establishment duration parameters; Determining a third score according to the communication quality parameters; Performing weighted statistics on the first score, the second score, and the third score to determine the link score.

3. The method according to claim 2, wherein The determining the first score according to the resource allocation parameters includes: Determining the current resource allocation amount, the lower limit of link establishment resources, and the upper limit of link establishment resources of the feeder link according to the resource allocation parameters; Determining the difference between the current resource allocation amount and the lower limit of link establishment resources as a first factor; Determining the difference between the upper limit of link establishment resources and the lower limit of link establishment resources as a second factor; Determining the ratio of the first factor to the second factor as the first score.

4. The method according to claim 2, wherein The determining the second score according to the link establishment duration parameters includes: Determining the current link establishment duration, the lower limit of link establishment duration, and the upper limit of link establishment duration of the feeder link according to the link establishment duration parameters; Determining the difference between the current link establishment duration and the lower limit of link establishment duration as a third factor; Determining the difference between the upper limit of link establishment duration and the lower limit of link establishment duration as a fourth factor; Determining the ratio of the third factor to the fourth factor as the second score.

5. The method according to claim 2, wherein The determining the third score according to the communication quality parameters includes: Determining the current signal-to-noise ratio, the lower limit of signal-to-noise ratio, and the upper limit of signal-to-noise ratio of the feeder link according to the link establishment duration parameters; Determining the difference between the current signal-to-noise ratio and the lower limit of signal-to-noise ratio as a fifth factor; Determining the difference between the upper limit of signal-to-noise ratio and the lower limit of signal-to-noise ratio as a sixth factor; Determining the ratio of the fifth factor to the sixth factor as the third score.

6. The method according to claim 1, wherein The formulating the interference avoidance strategy for the feeder link includes determining an interference avoidance angle of the target feeder station, where the interference avoidance angle is determined based on at least one of the following parameters: The negotiated interference noise ratio threshold of the disturbed satellite system and the target constellation system; The transmission power of the satellites of the target constellation system; The transmitting antenna gain of the satellites of the target constellation system; The included angle between the first connection line and the second connection line, where the first connection line is the line connecting the satellite of the disturbed party's satellite system to the feeder station of the disturbed party's satellite system, and the second connection line is the line connecting the satellite of the disturbed party's satellite system to the feeder station of the target constellation system; The maximum receiving gain of the antenna of the feeder station of the disturbed party's satellite system; The equivalent noise temperature of the receiver of the feeder station of the disturbed party's satellite system; The communication bandwidth of the disturbed party's satellite system; Boltzmann constant; The transmission loss of the feeder link.

7. The method according to claim 1, characterized in that The target constellation system includes a low-earth orbit constellation system.

8. The method according to any one of claims 1 to 7, characterized in that, The method further includes: Receiving and storing the feedback signal of the target satellite; Updating the link parameters according to the feedback signal; Using the updated link parameters to re-determine the link score and the interference avoidance strategy.

9. A feeder link planning device for a target constellation system, characterized in that, The device includes: An acquisition unit, configured to acquire the link parameters of multiple feeder links of the target constellation system, where the link parameters include resource allocation parameters, link establishment duration parameters, and communication quality parameters; A scoring unit, configured to determine the link score of the feeder link according to the link parameters; A strategy unit, configured to formulate an interference avoidance strategy for the feeder link based on the link score, where the interference avoidance strategy includes at least one of adjusting the satellite transmission power, shutting down the feeder link, and switching the feeder link; An instruction unit, configured to determine an interference avoidance instruction according to the interference avoidance strategy; A sending unit, configured to send the interference avoidance instruction to the target satellite of the target constellation system through the target feeder station of the target constellation system, so that the target satellite performs an interference avoidance action.

10. An electronic device, characterized in that, The electronic device includes a memory and a processor, where the memory is used to store a computer program, and when the computer program is executed by the processor, the method described in any one of claims 1 to 8 is implemented.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method described in any one of claims 1 to 8 is implemented.

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