Satellite beam frequency resource small-scale adjustment method based on task priority

Abstract

The invention belongs to the technical field of satellite communication, and discloses a satellite beam frequency resource small-scale adjustment method based on task priority, comprising the following steps: inputting a satellite number and a satellite beam number demand associated with a target area; updating the effective frequency bandwidth resources; satellite beam task priority distribution; updating effective frequency bandwidth resources according to the overlapped satellite beam high task priority; calculating the matching degree of the demand resource and the allocable resource; effective frequency bandwidth resources are updated according to the overlapped satellite beam low task priority; analyzing the matching degree between the frequency bandwidth resource demand and the allocable resources; and frequency bandwidth resources of the target region are adjusted in a small scale. According to the method, flexible small-scale adjustment of the satellite beam frequency bandwidth resources in the target area is realized, the utilization rate of the system frequency bandwidth resources is effectively improved while beam co-frequency interference is avoided, and the requirements of key tasks in the target area for satellite communication can be better met.

Description

Technical Field

[0001] This invention belongs to the field of satellite communication technology, specifically relating to a method for small-scale adjustment of satellite beam frequency resources based on mission priority. Background Technology

[0002] In satellite communication systems, frequency resources are scarce and critical communication resources. Their rational allocation and efficient utilization directly affect the quality, stability, and resource utilization of satellite communication services. As satellite communication scenarios continue to expand, the communication needs of target areas are becoming increasingly differentiated and dynamic. There are significant differences in the number of users, service types (such as voice, data, and video), and data traffic requirements in different regions. At the same time, some special missions and hot services place higher demands on the reliability and real-time performance of communications.

[0003] Existing satellite beam frequency resource allocation methods mostly adopt fixed allocation or extensive dynamic adjustment modes, which have the following drawbacks: First, they cannot accurately allocate frequency resources according to the specific needs and mission importance of the target area, resulting in limited frequency resources not being concentrated on serving high-priority missions and key areas, leading to insufficient communication accuracy. Second, they lack reasonable planning for frequency overlap areas of adjacent beams, which can easily cause frequency conflicts and interference, affecting the stability and reliability of signal transmission. Third, frequency resource utilization is low, and some resources occupied by low-priority missions cannot be dynamically released according to actual needs, making it difficult to fully meet the resource needs of high-priority missions. Fourth, they are slow to respond to dynamically changing communication scenarios, and cannot promptly fine-tune beam frequencies to adapt to real-time changes in the communication needs and environment of the target area, making it difficult to ensure communication continuity.

[0004] Therefore, there is an urgent need for a satellite beam frequency resource adjustment method that can combine task priorities, accurately adapt to needs, reduce frequency interference, and improve resource utilization to address the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a method for small-scale adjustment of satellite beam frequency resources based on task priority. This method enables flexible small-scale adjustment of the frequency bandwidth resources of satellite beams (m, n) in the target area. While avoiding co-channel interference, it effectively improves the utilization rate of system frequency bandwidth resources and can better meet the satellite communication needs of key tasks in the target area.

[0006] The technical solution adopted in this invention is a small-scale adjustment method for satellite beam frequency resources based on mission priority, comprising the following steps: S1, Enter the satellite number and satellite beam number requirements associated with the target region; S2, update available frequency bandwidth resources; S3, Satellite beam task priority allocation; S4, update the effective frequency bandwidth resources according to the high mission priority of overlapping satellite beams; S5 calculates the degree of matching between required resources and available resources; S6, update the effective frequency bandwidth resources according to the low mission priority of overlapping satellite beams; S7, analyze the degree of matching between frequency bandwidth resource requirements and available resources; S8 allows for small-scale adjustments to frequency bandwidth resources in the target region.

[0007] Furthermore, in step S1, the input of the satellite number and satellite beam number associated with the target region requires specific steps including: S11 assigns a unique number to each satellite and each beam of the satellite; S12, based on the number of users, service type, and data traffic requirements in the satellite coverage area, obtain the satellite number m and beam number n associated with the target area.

[0008] Furthermore, the specific steps of S2 include: S21, Input the configurable frequency bandwidth resource freq_band; S22, obtain the frequency bandwidth resources freq_band0 that have been clearly planned for the satellite beams (m, n) in the target area; S23, Remove the allocated and occupied frequency bandwidth resources from the configurable frequency bandwidth resources freq_band, and update the remaining valid frequency bandwidth resources freq_band1.

[0009] Furthermore, in S3, the satellite beam task priority allocation is specifically as follows: Based on the importance of the area covered by the satellite beam, the importance of user services, and data traffic, task priorities are assigned to each satellite beam: satellite beams covering special business areas involving national security and emergency rescue are assigned a task priority of 0; satellite beams covering hotspot areas with high user density and high data traffic, and whose business types have high real-time requirements, are assigned a task priority of 1; and the remaining satellite beams covering ordinary daily communication business areas are assigned a task priority of 2.

[0010] Furthermore, the specific steps of S4 include: S41. Based on satellite beam switching, beam overlap and frequency bandwidth resource library, calculate the task priority of overlapping beams of satellite beams (m, n) in the target area, and give priority to ensuring that the frequency bandwidth resources allocated to overlapping beams with task priority of 0 are not occupied. S42, remove the resources occupied by overlapping beams with a task priority of 0 from the remaining effective frequency bandwidth resources freq_band1, and update the remaining effective frequency bandwidth resources freq_band2.

[0011] Furthermore, the specific steps of S5 include: S51, determine whether the remaining effective frequency bandwidth resource freq_band2 can meet the resource requirements of the satellite beam (m, n) in the target area; S52, if the remaining effective frequency bandwidth resource freq_band2 meets part of the demand, then allocate all the remaining effective frequency bandwidth resource freq_band2 to the target area satellite beam (m, n); S53, if there is no remaining effective frequency bandwidth resource freq_band2, then the satellite beam (m, n) resources of the target area will not be adjusted; S54. If the remaining effective frequency bandwidth resource freq_band2 fully meets the satellite beam (m, n) requirements of the target area, then proceed to step S6.

[0012] Furthermore, the specific steps of S6 include: S61, based on satellite beam switching, beam overlap and frequency bandwidth resource library, calculate the frequency bandwidth resources with task priority of 2 occupied by the overlapping beams of satellite beams (m, n) in the target area; S62, calculate the intersection of the remaining effective bandwidth resource freq_band2 and the frequency bandwidth resource occupied by the overlapping beam with task priority 2, and update it to the remaining effective frequency bandwidth resource freq_band3.

[0013] Furthermore, the specific steps of S7 include: S71. Determine whether the remaining effective frequency bandwidth resource freq_band3 can meet the resource requirements of the satellite beam (m, n) in the target area; S72. If the remaining effective frequency bandwidth resource freq_band3 meets part of the demand, then allocate all the remaining effective frequency bandwidth resource freq_band3 to the target area satellite beam (m, n). S73. If there is no remaining effective frequency bandwidth resource freq_band3, the satellite beam (m, n) resources in the target area will not be adjusted. S74. If the remaining effective frequency bandwidth resource freq_band3 fully meets the satellite beam (m, n) requirements of the target area, then proceed to step S8.

[0014] Furthermore, in S8, the small-scale adjustment of frequency bandwidth resources in the target area specifically involves: Allocate the remaining effective frequency bandwidth resources freq_band3 to the target region satellite beam (m,n) as needed, and update the overlapping beam resources of the target region satellite beam (m,n) to ensure that they do not overlap with the resources of the target region satellite beam (m,n).

[0015] Furthermore, the specific steps for updating the overlapping beam resources of the target region satellite beams (m, n) are as follows: for overlapping beams that have frequency overlap with the target region satellite beams (m, n), adjust the allocation range of their frequency bandwidth resources, or reallocate frequency resources that do not overlap with the target region satellite beams (m, n) to them.

[0016] The beneficial effects of this invention are as follows: (1) Improve communication accuracy: The satellite beam frequency can be precisely adjusted according to the specific needs and environment of the target area, and the limited frequency bandwidth resources can be concentrated in the target direction, which can better meet the differentiated communication service needs in the region and improve the communication service quality of the target area.

[0017] (2) Improve frequency bandwidth resource utilization: By allocating task priorities and rationally planning the frequency overlap area of ​​adjacent beams, the frequency bandwidth resources of the beams can be dynamically adjusted according to the task priorities, so as to realize small-scale adjustment of satellite beam resources in the target area and improve the utilization rate of system frequency bandwidth resources.

[0018] (3) Reduce frequency conflict and interference: By allocating beam task priority and rationally planning beam overlap area and frequency bandwidth resources, the frequency bandwidth resource occupation of adjacent beams can be effectively controlled, frequency conflict and interference can be reduced, and the stability and reliability of beam signal transmission can be effectively guaranteed.

[0019] (4) Adapting to dynamic communication scenarios: The communication needs and environment of the target area may change at any time. This invention can respond quickly and in real time to the dynamic changes in the target area, and adjust the beam frequency in a timely manner to ensure the continuity and stability of communication. Attached Figure Description

[0020] Figure 1 This is a flowchart of the satellite beam frequency resource small-scale adjustment method based on task priority according to the present invention.

[0021] Figure 2 This is a flowchart for updating the allocation of effective frequency bandwidth resources according to the high priority of overlapping beams, as provided in an embodiment of the present invention.

[0022] Figure 3 This is a flowchart illustrating the allocation of effective frequency bandwidth resources according to the low priority of overlapping beams, provided in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] Example 1 A method for small-scale adjustment of satellite beam frequency resources based on task priority, such as... Figure 1 As shown, it includes the following steps: S1, Input the satellite ID and satellite beam number requirements associated with the target region. Specific steps include: S11 assigns a unique number to each satellite and each beam of the satellite; S12: Based on the number of users in the satellite coverage area, the type of service (such as voice, data, video, etc.), and the data traffic requirements, obtain the satellite number m and beam number n associated with the target area.

[0025] Specifically, assuming the target area is a special mission area, based on the number of users, business type, and data traffic requirements in that area, the associated satellite number m=3 and satellite beam number n=8 are determined.

[0026] S2, update the available frequency bandwidth resources, the specific steps include: S21, Input the configurable frequency bandwidth resource freq_band; S22, obtain the frequency bandwidth resources freq_band0 that have been clearly planned for the satellite beams (m, n) in the target area; S23, Remove the allocated and occupied frequency bandwidth resources (i.e., the frequency bandwidth resources of the target area satellite beam (m, n) that have been clearly planned) from the configurable frequency bandwidth resources freq_band, and update the remaining effective frequency bandwidth resources freq_band1: freq_band1 = freq_band - freq_band0 Formula 1 Here, freq_band represents configurable frequency bandwidth resources; freq_band0 represents the frequency bandwidth resources of the target area satellite beams (m, n) that have been clearly planned before small-scale adjustments.

[0027] S3, Satellite beam task priority allocation; Based on the importance of the area covered by the satellite beam, the importance of user services, and data traffic, task priorities are assigned to each satellite beam.

[0028] Specifically, satellite beams covering areas involving special operations such as national security and emergency rescue are assigned a task priority of 0; satellite beams covering hotspot areas with high user density and large data traffic and whose service type requires high real-time performance are assigned a task priority of 1; and the remaining satellite beams covering areas of ordinary daily communication services are assigned a task priority of 2.

[0029] It should be noted that the priority of a task beam can also be determined by the input from the superior task.

[0030] S4. Update the effective frequency bandwidth resources according to the high mission priority of overlapping satellite beams. The specific steps include: S41. Based on satellite beam switching, beam overlap and frequency bandwidth resource library, calculate the task priority of overlapping beams of satellite beams (m, n) in the target area, and give priority to ensuring that the frequency bandwidth resources allocated to overlapping beams with task priority of 0 are not occupied. Specifically, in this embodiment of the invention, the overlapping beams of satellite beams (m, n) in the target area are calculated, and the frequency bandwidth resources allocated to the overlapping beams with a task priority of 0 are counted as freq_band_cd0.

[0031] S42, Remove the resources occupied by overlapping beams with task priority of 0 from the remaining effective frequency bandwidth resource freq_band1, and update the remaining effective frequency bandwidth resource freq_band2: freq_band2 = freq_band1 - freq_band_cd0 Formula 2 Here, freq_band1 represents the remaining effective frequency bandwidth resources (the currently configurable pool of effective frequency bandwidth resources); freq_band_cd0 represents the frequency bandwidth resources already allocated to the overlapping beams with a task priority of 0.

[0032] The satellite beam switch, beam overlap, and frequency bandwidth resource database stores coverage data, switch status, and frequency bandwidth resource information allocated to each satellite beam. This allows for quick querying of overlapping beams and corresponding frequency bandwidth resource occupancy for satellite beams (m, n) in a target area.

[0033] S5, calculate the degree of matching between required resources and available resources, the specific steps of which include: S51, determine whether the remaining effective frequency bandwidth resource freq_band2 can meet the resource requirements of the satellite beam (m, n) in the target area; Specifically, the remaining effective frequency bandwidth resource freq_band2 is the updated effective allocable frequency bandwidth resource after considering that the high priority beam resources of overlapping beams are not adjusted.

[0034] S52, if the remaining effective frequency bandwidth resource freq_band2 can meet part of the demand, then allocate all the remaining effective frequency bandwidth resource freq_band2 to the target area satellite beam (m, n); Specifically, Figure 2 The left branch indicates that the remaining configurable resources can meet part of the demand. In other words, if the target region's resource demand is greater than the remaining available configurable resources, then all remaining resources need to be adjusted and allocated to the target region to meet the current small-scale resource adjustment.

[0035] S53, if there is no remaining effective frequency bandwidth resource freq_band2, then the satellite beam (m, n) resources of the target area will not be adjusted; Specifically, Figure 2 The right branch indicates that there are currently no remaining configurable resources. In other words, after ensuring high mission priority, there are no frequency resources that can be adjusted on a small scale. Therefore, no adjustments will be made to the resources of the satellite beam (m, n) in the target area.

[0036] S54. If the remaining effective frequency bandwidth resource freq_band2 can fully meet the satellite beam (m, n) requirements of the target area, then proceed to step S6. Specifically, Figure 2 The middle branch indicates that there are sufficient remaining configurable resources to fully meet the small-scale resource adjustment needs of the current target area. In this case, further optimization and adjustment are needed after considering the low-priority resources of overlapping beams.

[0037] S6, update the effective frequency bandwidth resources according to the low mission priority of overlapping satellite beams. The specific steps include: S61, based on satellite beam switching, beam overlap and frequency bandwidth resource library, calculate the frequency bandwidth resources with task priority of 2 occupied by the overlapping beams of satellite beams (m, n) in the target area; Specifically, in this embodiment of the invention, the overlapping beams of the satellite beams (m, n) in the target area are calculated, and the frequency bandwidth resources allocated to the overlapping beams with a task priority of 2 are counted as freq_band_cd2.

[0038] S62, calculate the intersection of the remaining effective bandwidth resource freq_band2 and the frequency bandwidth resource occupied by the overlapping beam with task priority 2, and update it to the remaining effective frequency bandwidth resource freq_band3: freq_band3 = freq_band2∩freq_band_cd2 Formula 3 Here, freq_band2 represents the remaining effective bandwidth resources (the currently configurable pool of effective frequency bandwidth resources), freq_band_cd2 represents the frequency bandwidth resources already occupied by overlapping beams with a mission priority of 2 for the target area satellite beams (m, n) before the small-scale adjustment, and ∩ is read as "intersection", representing the set consisting of elements that belong to both freq_band2 and freq_band_cd2 (the frequency bandwidth resources already allocated to overlapping beams with a mission priority of 2).

[0039] S7, analyze the matching degree between frequency bandwidth resource requirements and available resources. Specific steps include: S71. Determine whether the remaining effective frequency bandwidth resource freq_band3 can meet the resource requirements of the satellite beam (m, n) in the target area; Specifically, the remaining effective frequency bandwidth resource freq_band3 is the updated effective allocable frequency bandwidth resource after considering the low-priority beam resources of overlapping beams.

[0040] S72. If the remaining effective frequency bandwidth resource freq_band3 can meet part of the demand, then allocate all the remaining effective frequency bandwidth resource freq_band3 to the target area satellite beam (m, n). Specifically, Figure 3 The left branch indicates that the remaining configurable resources can meet part of the demand. In other words, if the target region's resource demand is greater than the remaining available configurable resources, then all remaining resources need to be adjusted and allocated to the target region to meet the current small-scale resource adjustment.

[0041] S73. If there is no remaining effective frequency bandwidth resource freq_band3, the satellite beam (m, n) resources in the target area will not be adjusted. Specifically, Figure 3 The right-hand branch indicates that there are currently no remaining configurable resources, so no adjustments will be made to the resources of the satellite beam (m, n) in the target area.

[0042] S74. If the remaining effective frequency bandwidth resource freq_band3 can fully meet the satellite beam (m, n) requirements of the target area, then proceed to step S8. Specifically, Figure 3 The intermediate branch indicates that there are sufficient remaining configurable resources to fully meet the resource adjustment needs of the satellite beam (m, n) in the target area. In this case, the remaining effective frequency bandwidth resources will be allocated as needed to make small-scale adjustments to the frequency bandwidth resources of the satellite beam (m, n) in the target area.

[0043] S8, small-scale adjustment of frequency bandwidth resources in the target area; Allocate the remaining effective frequency bandwidth resources freq_band3 to the target region satellite beam (m,n) as needed, and update the overlapping beam resources of the target region satellite beam (m,n) to ensure that they do not overlap with the resources of the target region satellite beam (m,n).

[0044] The specific steps for updating the overlapping beam resources of the target area satellite beam (m, n) are as follows: For overlapping beams that have frequency overlap with the target area satellite beam (m, n), adjust the allocation range of their frequency bandwidth resources, or reallocate frequency resources that do not overlap with the target area satellite beam (m, n) to ensure no co-channel interference.

[0045] Any content not described in detail in this specification belongs to the prior art in this technical field.

Claims

1. A method for small-scale adjustment of satellite beam frequency resources based on task priority, characterized in that, Includes the following steps: S1, Enter the satellite number and satellite beam number requirements associated with the target region; S2, update available frequency bandwidth resources; S3, Satellite beam task priority allocation; S4, update the effective frequency bandwidth resources according to the high mission priority of overlapping satellite beams; S5 calculates the degree of matching between required resources and available resources; S6, update the effective frequency bandwidth resources according to the low mission priority of overlapping satellite beams; S7, analyze the degree of matching between frequency bandwidth resource requirements and available resources; S8 allows for small-scale adjustments to frequency bandwidth resources in the target region.

2. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 1, characterized in that, In step S1, the satellite number and satellite beam number associated with the target region are required. Specific steps include: S11 assigns a unique number to each satellite and each beam of the satellite; S12, based on the number of users, service type, and data traffic requirements in the satellite coverage area, obtain the satellite number m and beam number n associated with the target area.

3. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 2, characterized in that, The specific steps of S2 include: S21, Input the configurable frequency bandwidth resource freq_band; S22, obtain the frequency bandwidth resources freq_band0 that have been clearly planned for the satellite beams (m, n) in the target area; S23, Remove the allocated and occupied frequency bandwidth resources from the configurable frequency bandwidth resources freq_band, and update the remaining valid frequency bandwidth resources freq_band1.

4. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 1, characterized in that, In S3, the satellite beam task priority allocation is specifically as follows: Based on the importance of the area covered by the satellite beam, the importance of user services, and data traffic, task priorities are assigned to each satellite beam: satellite beams covering special business areas involving national security and emergency rescue are assigned a task priority of 0; satellite beams covering hotspot areas with high user density and high data traffic, and whose business types have high real-time requirements, are assigned a task priority of 1; and the remaining satellite beams covering ordinary daily communication business areas are assigned a task priority of 2.

5. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claims 3 and 4, characterized in that, The specific steps of S4 include: S41. Based on satellite beam switching, beam overlap and frequency bandwidth resource library, calculate the task priority of overlapping beams of satellite beams (m, n) in the target area, and give priority to ensuring that the frequency bandwidth resources allocated to overlapping beams with task priority of 0 are not occupied. S42, remove the resources occupied by overlapping beams with a task priority of 0 from the remaining effective frequency bandwidth resources freq_band1, and update the remaining effective frequency bandwidth resources freq_band2.

6. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 5, characterized in that, The specific steps of S5 include: S51, determine whether the remaining effective frequency bandwidth resource freq_band2 can meet the resource requirements of the satellite beam (m, n) in the target area; S52, if the remaining effective frequency bandwidth resource freq_band2 meets part of the demand, then allocate all the remaining effective frequency bandwidth resource freq_band2 to the target area satellite beam (m, n); S53, if there is no remaining effective frequency bandwidth resource freq_band2, then the satellite beam (m, n) resources of the target area will not be adjusted; S54. If the remaining effective frequency bandwidth resource freq_band2 fully meets the satellite beam (m, n) requirements of the target area, then proceed to step S6.

7. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 6, characterized in that, The specific steps of S6 include: S61, based on satellite beam switching, beam overlap and frequency bandwidth resource library, calculate the frequency bandwidth resources with task priority of 2 occupied by the overlapping beams of satellite beams (m, n) in the target area; S62, calculate the intersection of the remaining effective bandwidth resource freq_band2 and the frequency bandwidth resource occupied by the overlapping beam with task priority 2, and update it to the remaining effective frequency bandwidth resource freq_band3.

8. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 7, characterized in that, The specific steps of S7 include: S71. Determine whether the remaining effective frequency bandwidth resource freq_band3 can meet the resource requirements of the satellite beam (m, n) in the target area; S72. If the remaining effective frequency bandwidth resource freq_band3 meets part of the demand, then allocate all the remaining effective frequency bandwidth resource freq_band3 to the target area satellite beam (m, n). S73. If there is no remaining effective frequency bandwidth resource freq_band3, the satellite beam (m, n) resources in the target area will not be adjusted. S74. If the remaining effective frequency bandwidth resource freq_band3 fully meets the satellite beam (m, n) requirements of the target area, then proceed to step S8.

9. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 8, characterized in that, In S8, the small-scale adjustment of frequency bandwidth resources in the target area specifically involves: Allocate the remaining effective frequency bandwidth resources freq_band3 to the target region satellite beam (m,n) as needed, and update the overlapping beam resources of the target region satellite beam (m,n) to ensure that they do not overlap with the resources of the target region satellite beam (m,n).

10. The method for small-scale adjustment of satellite beam frequency resources based on task priority according to claim 9, characterized in that, The specific steps for updating the overlapping beam resources of the target area satellite beams (m, n) are as follows: for overlapping beams that have frequency overlap with the target area satellite beams (m, n), adjust the allocation range of their frequency bandwidth resources, or reallocate frequency resources that do not overlap with the target area satellite beams (m, n) to them.

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