Method and system for managing a new generation satellite internet combined base station

Abstract

This invention belongs to the field of communication technology, specifically a management method and system for next-generation satellite internet combined base stations. It calculates comprehensive satellite-to-satellite and satellite-to-ground link state metrics by nonlinearly weighting and combining link bandwidth, latency, stability, and predicted bit error rate; assesses ground station resource occupancy and calculates node processing load; for satellite-to-satellite links, it evaluates quantum key distribution channel conditions based on quantum payload configuration and key pool status, and generates discrete quantum security levels; at the routing calculation level, it uses satellite ephemeris to predict deterministic changes in network topology and generates timely link state announcements; it includes node processing load in the total path cost; and by adjusting the weights of link state metrics, it calculates differentiated link costs for different service types. For services with specific security requirements, links that do not meet the quantum security level are directly excluded from routing calculations or have their costs increased by adding a penalty factor.

Description

Technical Field

[0001] This invention belongs to the field of communication technology, specifically a management method and system based on a new generation of satellite internet combined base stations. Background Technology

[0002] In recent years, the development of next-generation satellite internet, represented by low Earth orbit (LEO) satellite constellations, has been rapid. Satellite internet is characterized by rapid and dynamic changes in network topology, limited on-board resources, and complex and variable link characteristics (such as large fluctuations in latency, bandwidth, and bit error rate). Currently, traditional terrestrial network routing protocols such as Open Shortest Path First (OSPF) are often used as the basis for adaptive modifications. However, the standard OSPF protocol mainly uses link bandwidth as the single routing metric, making it difficult to effectively evaluate key factors such as latency, link stability, and communication reliability, thus affecting the accuracy of routing decisions and the stability of service experience. In addition, frequent topology changes of satellite nodes can trigger a large flood of Link State Advertisements (LSAs), increasing the network signaling burden and potentially leading to routing oscillations, thus reducing overall network performance. Network Function Virtualization (NFV) technology has been introduced, allowing the dynamic deployment and management of virtualized network functions (VNFs) on nodes such as satellites or combined terrestrial base stations. However, existing routing mechanisms are usually independent of the resource orchestration and management layer of NFV. The routing protocol cannot be aware of the load status of the computing resources such as the central processing unit (CPU) and memory generated by the node carrying VNF. This may cause the data flow to be routed to a node with a good link status but whose processing capacity has reached a bottleneck, forming a new congestion point. At the same time, in order to meet the requirements of high-level secure communication, satellite-based quantum key distribution (QKD) cannot distinguish and prioritize secure links protected by quantum keys during path calculation, nor can it dynamically adjust according to information such as the real-time key pool status, making it difficult to meet the differentiated routing requirements of services with different security levels. Summary of the Invention

[0003] To improve resource utilization and security of next-generation satellite internet combined base stations, in a first aspect of this invention, a management method based on next-generation satellite internet combined base stations is provided, applied to a satellite internet system including multiple combined base station nodes, on-orbit satellite nodes, and a Network Functions Virtualization Orchestrator (NFVO), comprising: Based on satellite ephemeris, telemetry, and inter-node detection data, a comprehensive link state metric for satellite-to-satellite and satellite-to-ground links is calculated, which is a weighted combination of the reciprocal of the link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction, and predicted bit error rate. The virtualized network function (VNF) resource occupancy status of each base station node is obtained from the NFVO, and the node processing load index, including CPU utilization, memory allocation rate, and input / output I / O wait, is calculated. Based on the quantum payload configuration and real-time key pool status of the satellite in orbit, the quantum key distribution (QKD) channel conditions of the star-to-star link are evaluated, and a discrete quantum security level characterizing the key negotiation success rate and key pool reserve is generated. The deterministic network topology changes caused by satellite orbital motion are predicted using satellite ephemeris data, and a timely link status announcement (LSA) containing the future effective time and effective duration is generated. During OSPF route calculation, the node processing load index is included as the node cost in the total path cost; and for service flows of different service types, differentiated link costs are calculated by adjusting the weights of each component in the comprehensive link state metric; when calculating routes for service flows with a specified security level, links with a quantum security level lower than the security requirements of the service flow are excluded from the route calculation, or the quantum security level of the service flow is converted into a penalty factor and added to the link cost.

[0004] In a second aspect of the invention, a management system based on a next-generation satellite internet combined base station is provided, applied to a satellite internet system including multiple combined base station nodes, on-orbit satellite nodes, and a Network Functions Virtualization Orchestrator (NFVO), comprising: The link status assessment unit is used to calculate the comprehensive link status metric for satellite-to-satellite and satellite-to-ground links based on satellite ephemeris, telemetry and inter-node detection data. This metric is a weighted combination of the reciprocal of the link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction and predicted bit error rate. The node load assessment unit is used to obtain the virtualized network function (VNF) resource occupancy status of each base station node from the NFVO, and calculate the node processing load index, including CPU utilization, memory allocation rate, and input / output I / O wait. The link evaluation unit is used to evaluate the quantum key distribution (QKD) channel conditions of the satellite-to-satellite link based on the quantum payload configuration and real-time key pool status of the satellite in orbit, and generate a discrete quantum security level characterizing the key negotiation success rate and key pool reserve; it also uses satellite ephemeris data to predict deterministic network topology changes caused by satellite orbital motion and generates a timely link status announcement (LSA) containing the future effective time and effective duration. The routing calculation unit is used to include the node processing load index as a node cost in the total path cost during OSPF routing calculation; and to calculate differentiated link costs for different service types of service flows by adjusting the weights of each component in the comprehensive link state metric; when calculating routes for service flows with a specified security level, links with a quantum security level lower than the security requirements of the service flow are excluded from the routing calculation, or the quantum security level of the service flow is converted into a penalty factor and added to the link cost.

[0005] Compared with the prior art, the present invention has the following beneficial effects: This invention constructs a comprehensive link metric that integrates bandwidth, latency, stability, and bit error rate, enabling a more accurate reflection of the true communication quality of satellite links and thus selecting the best-performing transmission path. Simultaneously, by incorporating the virtualized resource load of base station nodes into routing decisions, it effectively avoids data flow converging on nodes with saturated processing capabilities, achieving coordinated scheduling of computing and network resources, preventing processing bottlenecks, and improving overall network throughput. Furthermore, by predictively generating timely link status announcements, it reduces signaling storms caused by topology changes, alleviates the burden on the network control plane, and uses quantum security levels as the basis for routing decisions, giving the routing system security awareness capabilities. This allows it to provide differentiated security path guarantees for services with different confidentiality levels, ensuring the secure transmission of sensitive information. Attached Figure Description

[0006] Figure 1 This is a schematic diagram illustrating the integrated link state metric structure of the present invention; Figure 2 This is a schematic diagram illustrating the load index composition of the node processing in this invention. Figure 3 This is a schematic diagram illustrating the quantum security level classification of the present invention; Figure 4 This is a schematic diagram of the Time-Release Link Status Allocation (LSA) of the present invention; Figure 5 This is a schematic diagram illustrating the link cost weighting for differentiated services in this invention. Figure 6 This is a schematic diagram illustrating the security-aware routing cost of the present invention. Detailed Implementation

[0007] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0008] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0009] Example 1 Example 1 provides a management method based on a next-generation satellite internet combined base station, applied to a satellite internet system including multiple combined base station nodes, on-orbit satellite nodes, and a Network Functions Virtualization Orchestrator (NFVO), including: S1, based on satellite ephemeris, telemetry and inter-node detection data, calculates the comprehensive link state metric of satellite-to-satellite and satellite-to-ground links, which is a weighted combination of the reciprocal of link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction and predicted bit error rate. Preferably, the round-trip time of the link is obtained by continuous ICMP probing or TWAMP protocol measurement, and normalized using the maximum-minimum method within a sliding time window; the link bandwidth and signal-to-noise ratio are obtained using real-time monitoring data of satellite beacons from ground gateway stations, and the bit error rate is predicted based on the latter and channel coding models such as QPSK modulation; the ephemeris data is processed using the SGP4 orbit prediction model to calculate the visible duration of the link in the next period as the link stability coefficient; the weight coefficients of each component are determined by the analytic hierarchy process (AHP), and a weighted sum is performed to obtain the comprehensive metric value.

[0010] S2, obtain the virtualized network function (VNF) resource usage status of each base station node from NFVO, and calculate the node processing load index, including CPU utilization, memory allocation rate, and input / output I / O wait. The management agent within the combined base station periodically queries the NFVO for performance data reported by the VIM virtualization infrastructure manager it manages, through a standard RESTful application programming interface. It obtains telemetry metrics such as CPU utilization, the ratio of allocated memory to total memory, and I / O latency for all VNF instances on a specified base station node. After averaging or taking the maximum value for similar metrics, these metrics are linearly combined using preset weights to form a dimensionless node processing load index.

[0011] S3, based on the quantum payload configuration and real-time key pool status of the on-orbit satellite, evaluates the quantum key distribution (QKD) channel conditions of the star-to-star link, generates a discrete quantum security level characterizing the key negotiation success rate and key pool reserve; uses satellite ephemeris data to predict deterministic network topology changes caused by satellite orbital motion, and generates a timely link status announcement (LSA) containing future effective time and effective duration. By monitoring the beacon light tracking accuracy, background photon count, and qubit error rate (QBER) of the QKD payload, the physical channel quality is evaluated, and the secure key generation rate is calculated. This rate represents the key negotiation success rate. Simultaneously, the current remaining key quantity (key pool balance) is retrieved from the key management system. Subsequently, multiple thresholds are set; for example, a key generation rate greater than 10 kbps and a key pool balance greater than 1 GB is defined as level 3; a rate between 1 kbps and 10 kbps and a balance greater than 100 MB is defined as level 2, and so on, mapping continuous evaluation results to discrete integer levels from 0 to N. The network control center uses the two lines of orbital element data (TLE) from all on-orbit satellites and employs a high-precision orbital propagation model, such as the SDP4 model, to batch estimate the precise positions of all satellites in the coming hours. By calculating the line-of-sight reachability between any two nodes, the precise time points for all link establishment and interruption are predetermined. When it is predicted that a new link will be established in the future at time T1 and last until time T2, a custom Opaque LSA is generated in advance, which includes an effective time field set to T1 and an effective duration field set to the difference between T2 and T1, and then flooded into the network.

[0012] S4, during OSPF route calculation, the node processing load index is included as the node cost in the total path cost; and for service flows of different service types, differentiated link costs are calculated by adjusting the weights of each component in the comprehensive link state metric; when calculating routes for service flows with a specified security level, links with a quantum security level lower than the service flow security requirements are excluded from the route calculation, or the quantum security level of the service flow is converted into a penalty factor and added to the link cost.

[0013] The Dijkstra shortest path algorithm is modified by adding an extra processing load index of the next-hop node as a node cost in addition to the link cost during path cost accumulation. For low-latency voice services, the weight of the latency component is increased when calculating the comprehensive link metric; for high-bandwidth video services, the weight of the bandwidth component is increased. When calculating routes for services requiring Level 3 security protection, a pruning operation is first performed on the network topology graph, removing all links with quantum security levels of 0, 1, and 2, and then the Dijkstra algorithm is run on the remaining topology; alternatively, a penalty term is added to the original link cost, the value of which is equal to the difference between the required security level of the service and the actual security level of the link multiplied by a large constant factor.

[0014] To transform multiple link performance metrics with different physical units and dimensions into a unified dimensionless cost value, facilitating comparison and selection by routing algorithms, in an optional embodiment, a comprehensive link state metric for star-to-star and star-to-ground links is calculated, consisting of a weighted combination of the reciprocal of link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction, and predicted bit error rate. This includes: The link bandwidth B, link delay D, link stability coefficient S, and normalized prediction bit error rate are used. By synthesizing the link state metric formula Perform calculations; in, The preset reference bandwidth, The maximum acceptable delay is preset, and α, β, γ, and δ are non-negative weighting coefficients with a sum of 1. All weighting terms in the formula are dimensionless values.

[0015] For example, assume a preset reference bandwidth 1Gbps, maximum acceptable latency The time interval is 100 milliseconds, and the weighting coefficients α, β, γ, and δ are set to 0.4, 0.3, 0.2, and 0.1, respectively. At this time, the measured real-time bandwidth B of a star-to-star link is 500 Mbps, the latency D is 60 milliseconds, the link stability coefficient S is 0.95, and the prediction error rate E is one part per million. In one embodiment, the normalized prediction error rate... The calculation method is as follows ,in, The preset unacceptable upper limit for bit error rate, for example, 10⁻ 4 ,when hour, ; The preset ideal lower limit for bit error rate, for example, 10⁻ 9 ,when hour, log is a logarithmic function, which can be base 10 or base e (the natural logarithm).

[0016] According to the formula, the bandwidth term is 0.8, the latency term is 0.18, the link stability term is 0.01, and the bit error rate term is 0.06. Adding these values ​​together, the overall metric M for this link is 1.05. Figure 1 As shown, 1.05 represents the overall cost of the link. A higher value indicates a worse overall link condition, and the link should be avoided as much as possible during route selection.

[0017] In an optional embodiment, the node processing load index, including CPU utilization, memory allocation rate, and I / O wait time, is calculated, including: Based on the obtained CPU utilization Memory allocation rate and I / O latency The load exponential formula is used to process load through nodes. Calculated; in, The maximum I / O wait threshold is preset, and k1, k2, and k3 are non-negative load weight coefficients, with the sum of k1, k2, and k3 being 1.

[0018] The node processing load index L is used to quantify the real-time processing pressure of network nodes such as satellites or ground stations, in order to avoid routing service traffic to already overloaded nodes. Assume a preset maximum I / O wait threshold. The time limit is 50 milliseconds. The three load weighting coefficients k1, k2, and k3 are set to 0.5, 0.3, and 0.2 respectively, to indicate that CPU utilization is the most important factor in evaluating load. If the current CPU utilization of a satellite node is... The memory allocation rate is 0.8. The I / O latency is 0.7. The ms interval is 20ms. Therefore, the load index L is 0.69. Figure 2 As shown, the load index L is announced to other nodes in the network. When the routing algorithm calculates the path, it will tend to choose the node with the lower L value as the forwarding path, thereby achieving load balancing across the entire network.

[0019] To transform continuously varying quantum-safe state parameters into discrete and easily tractable levels for direct use by routing strategies, in one optional embodiment, a discrete quantum-safe level representing key negotiation success rate and key pool balance is generated, including: Preset high and low level key negotiation success rate thresholds , and high and low level key pool balance thresholds , ; When the real-time key negotiation success rate And real-time key pool balance At that time, the quantum security level was set as the highest level; when or At that time, the quantum security level was set as the lowest level; In other cases, the quantum security level will be set as medium.

[0020] For example, system administrators can preset a high threshold for key negotiation success rate. The value is 0.95, a low threshold. The value is set to 0.8; a high threshold for the remaining key pool balance is also preset. 1000, low threshold For 100, such as Figure 3As shown, at a certain moment, the real-time key negotiation success rate R of a certain quantum link is monitored to be 0.98, and the key pool reserve P is 1200. Since both R and P exceed their respective high thresholds, the quantum security level of this link is rated as the highest level. If at another moment, the negotiation success rate R drops to 0.75, even though the key pool reserve P is still 2000, because R is below the low threshold... The security level of this link will be directly determined to be the lowest level. This ensures that any deterioration in any key security indicator will lead to a rapid reduction in the security level, thereby triggering corresponding route avoidance or alarms.

[0021] In an optional embodiment, deterministic network topology changes caused by satellite orbital motion are predicted using satellite ephemeris data, and a timely Link State Advertisement (LSA) containing the future effective time and effective duration is generated, including: Based on the orbital root numbers of any two satellite nodes in the star-to-star link, the time when they will next enter each other's line-of-sight communication range can be calculated using an orbital dynamics model. and the time of leaving the communication range ; Based on the orbital six-point number of the satellite node in the satellite-to-ground link and the geographical location of the combined base station node, the time when the satellite node will next enter the communication coverage area of ​​the base station node is calculated. and the moment of leaving the coverage area ; The calculated for each link As the effective time of the link state announcement, and and The difference is taken as the effective duration.

[0022] This embodiment enables the network to predict future topology changes, allowing for proactive route planning instead of passively responding to link interruptions and reconnections. Taking a satellite-to-satellite link as an example, the control center obtains the six orbital elements of satellites A and B and performs orbital extrapolation using the Standard General Orbital Elements (SGP4) model. Calculations show that at 2:30:00 UTC, the two satellites will establish line-of-sight communication, and at 2:45:00 UTC, they will lose line-of-sight due to relative motion. Therefore, an LSA (Local Area Signal) is generated for the A / B link, with its effective time... It is 2:30:00 PM, and the effective duration is... and The difference, i.e., fifteen minutes, such as Figure 4As shown, the LSA is broadcast to the entire network in advance. Upon receiving it, all nodes in the network do not immediately update their routing tables. Instead, they wait until the specified effective time arrives before adding the new link to the network topology for routing calculations, and then automatically removing it after fifteen minutes, thus achieving precise and timely management of the network topology.

[0023] In an optional embodiment, for service flows of different service types, differentiated link costs are calculated by adjusting the weights of each component in the comprehensive link state metric, including: For latency-sensitive services, increase the weighting coefficient β of the latency component in the comprehensive link state metric formula, and decrease the weighting coefficient α of the bandwidth component. For bandwidth-sensitive services, increase the weighting coefficient α of the bandwidth component in the comprehensive link state metric formula, and decrease the weighting coefficient β of the latency component.

[0024] For example, for a latency-sensitive service requiring real-time high-definition video calls, the requirement for network latency is far greater than the requirement for bandwidth. When calculating routes, the default bandwidth weight α can be lowered from 0.4 to 0.1, while the latency weight β is increased from 0.3 to 0.6. After this adjustment, a link with a latency of only 20ms but a bandwidth of only 100Mbps might have a lower calculated link cost than another link with a latency as high as 80ms but a bandwidth of 1Gbps. The routing algorithm will prioritize the former, ensuring the smoothness of the video call. Conversely, for bandwidth-sensitive services such as large file transfers, the opposite weight adjustment strategy will be adopted, such as increasing α to 0.7 and decreasing β to 0.1. Figure 5 As shown, this allows for the prioritization of high-bandwidth paths to shorten the total transmission time.

[0025] In an optional embodiment, the quantum security level of the service flow is converted into a penalty factor added to the link cost, including: When the link is discretized, the quantum security level Security level below business flow requirements At that time, the cost of the link Calculated as ; Where M is the comprehensive link state metric of the link. The preset penalty coefficient, and The integer representing the security level.

[0026] Discrete quantum security levels are mapped to integers, for example, the highest level is 3, the medium level is 2, and the lowest level is 1. Assume a confidential data transmission flow requires a specific security level. The default penalty coefficient is 3, which is the highest level. Use a large number, such as 10, to increase the cost of non-compliant links.

[0027] Assume there are two alternative links. Link A has a comprehensive metric M of 0.6 and a quantum security level of [missing information]. The value is 3, which meets the requirements, and the final cost is... The M value is 0.6. Link B has better overall performance, with an M value of only 0.3, but its security level is higher. The score is 2, which is lower than the required level 3 for business operations. At this point, the final cost of link B... It is 10.3, such as Figure 6 As shown, during routing decisions, the lower-cost link A is selected, effectively avoiding the link B, which, although high-performing, lacks sufficient security, thus ensuring the secure transmission of confidential business information.

[0028] Example 2 Example 2 provides a management system based on a next-generation satellite internet combined base station, applied to a satellite internet system including multiple combined base station nodes, on-orbit satellite nodes, and a Network Functions Virtualization Orchestrator (NFVO), including: The link status assessment unit is used to calculate the comprehensive link status metric for satellite-to-satellite and satellite-to-ground links based on satellite ephemeris, telemetry and inter-node detection data. This metric is a weighted combination of the reciprocal of the link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction and predicted bit error rate. The node load assessment unit is used to obtain the virtualized network function (VNF) resource usage status of each base station node from the NFVO and calculate the node processing load index, including CPU utilization, memory allocation rate, and input / output I / O wait. The link evaluation unit is used to evaluate the quantum key distribution (QKD) channel conditions of the satellite-to-satellite link based on the quantum payload configuration and real-time key pool status of the satellite in orbit, and generate a discrete quantum security level characterizing the key negotiation success rate and key pool reserve; it also uses satellite ephemeris data to predict deterministic network topology changes caused by satellite orbital motion and generates a timely link status announcement (LSA) containing the future effective time and effective duration. The routing calculation unit is used to include the node processing load index as the node cost in the total path cost during OSPF routing calculation; and to calculate differentiated link costs for different service types of service flows by adjusting the weights of each component in the comprehensive link state metric; when calculating routes for service flows with a specified security level, links with a quantum security level lower than the service flow security requirements are excluded from the routing calculation, or the quantum security level of the service flow is converted into a penalty factor and added to the link cost.

[0029] Example 3 Embodiment 3 provides a computer-readable storage medium on which a computer program is stored. When executed by a processor, the computer program implements the management method for a new generation satellite internet combined base station as described in Embodiment 1.

[0030] In the fourth embodiment, a computer device is provided, which includes at least a memory and a processor. A computer program is stored in the memory, and when the computer program is executed by the processor, it implements the management method based on the next-generation satellite internet combined base station as described in Embodiment 1.

[0031] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of a necessary general-purpose hardware platform, or by a combination of hardware and software. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a computer product. The present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Other embodiments may also be used. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A management method based on next-generation satellite internet combined base stations, applied to a satellite internet system including multiple combined base station nodes, on-orbit satellite nodes, and a Network Functions Virtualization Orchestrator (NFVO), characterized in that, include: Based on satellite ephemeris, telemetry, and inter-node detection data, a comprehensive link state metric for satellite-to-satellite and satellite-to-ground links is calculated, which is a weighted combination of the reciprocal of the link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction, and predicted bit error rate. The virtualized network function (VNF) resource occupancy status of each base station node is obtained from the NFVO, and the node processing load index, including CPU utilization, memory allocation rate, and input / output I / O wait, is calculated. Based on the quantum payload configuration and real-time key pool status of the on-orbit satellite, the quantum key distribution (QKD) channel conditions of the star-to-star link are evaluated, and a discrete quantum security level characterizing the key negotiation success rate and key pool reserve is generated. Predict deterministic network topology changes caused by satellite orbital motion using satellite ephemeris data, and generate timely Link State Advertisements (LSAs) containing future effective times and effective durations; During OSPF route calculation, the node processing load index is included as the node cost in the total path cost; and for different service types of service flows, differentiated link costs are calculated by adjusting the weights of each component in the comprehensive link state metric. When calculating routes for service flows with a specified security level, links with a quantum security level lower than the security requirements of the service flow are excluded from the route calculation, or the quantum security level of the service flow is converted into a penalty factor and added to the link cost. The calculation of the comprehensive link state metric for star-to-star and star-to-ground links, which is a weighted combination of the reciprocal of the link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction, and predicted bit error rate, includes: The link bandwidth B, link delay D, link stability coefficient S, and normalized prediction bit error rate are used. By synthesizing the link state metric formula Perform calculations; in, The preset reference bandwidth, S is the preset maximum acceptable delay. α, β, γ, and δ are non-negative weighting coefficients and their sum is 1. All weighting terms in the formula are dimensionless values, and 0 ≤ S ≤ 1.

2. The management method based on a new generation satellite internet combined base station according to claim 1, characterized in that, The calculations include node processing load indices such as CPU utilization, memory allocation rate, and input / output I / O wait time, including: Based on the obtained CPU utilization Memory allocation rate and I / O latency The formula for processing load exponentially through nodes Calculated; in, The maximum I / O wait threshold is preset, and k1, k2, and k3 are non-negative load weight coefficients, with the sum of k1, k2, and k3 being 1.

3. The management method based on a new generation satellite internet combined base station according to claim 1, characterized in that, The generation of discretized quantum security levels, representing key negotiation success rate and key pool surplus, includes: Preset high and low level key negotiation success rate thresholds , and high and low level key pool remaining thresholds , ; When the real-time key negotiation success rate And real-time key pool balance At that time, the quantum security level was set as the highest level; when or At that time, the quantum security level was set as the lowest level; In other cases, the quantum security level will be set as medium.

4. The management method based on a new generation satellite internet combined base station according to claim 1, characterized in that, The process of using satellite ephemeris data to predict deterministic network topology changes caused by satellite orbital motion and generating timely Link State Advertisements (LSAs) containing future effective times and effective durations includes: Based on the orbital root numbers of any two satellite nodes in the star-to-star link, the time when they will next enter each other's line-of-sight communication range can be calculated using an orbital dynamics model. and the time of leaving the communication range ; Based on the orbital six-point number of the satellite node in the satellite-to-ground link and the geographical location of the combined base station node, the time when the satellite node will next enter the communication coverage area of ​​the base station node is calculated. and the moment of leaving the coverage area ; The calculated values ​​for each link As the effective time of the link state announcement, and and The difference is taken as the effective duration.

5. The management method based on a new generation satellite internet combined base station according to claim 1, characterized in that, The aforementioned calculation of differentiated link costs for different service types of service flows involves adjusting the weights of each component in the comprehensive link state metric, including: For latency-sensitive services, increase the weighting coefficient β of the latency component in the comprehensive link state metric formula, and decrease the weighting coefficient α of the bandwidth component; For bandwidth-sensitive services, increase the weighting coefficient α of the bandwidth component in the comprehensive link state metric formula, and decrease the weighting coefficient β of the latency component.

6. The management method based on a new generation satellite internet combined base station according to claim 1, characterized in that, The step of converting the quantum security level of the service flow into a penalty factor and adding it to the link cost includes: When the link is discretized, the quantum security level Security level below business flow requirements At that time, the cost of the link will be... Calculated as ; Where M is the comprehensive link state metric of the link. The preset penalty coefficient, and The integer representing the security level.

7. A management system based on a next-generation satellite internet combined base station, applied to a satellite internet system including multiple combined base station nodes, on-orbit satellite nodes, and a Network Functions Virtualization Orchestrator (NFVO), characterized in that, include: The link status assessment unit is used to calculate the comprehensive link status metric for satellite-to-satellite and satellite-to-ground links based on satellite ephemeris, telemetry and inter-node detection data. This metric is a weighted combination of the reciprocal of the link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction and predicted bit error rate. The node load assessment unit is used to obtain the virtualized network function (VNF) resource occupancy status of each base station node from the NFVO, and calculate the node processing load index, including CPU utilization, memory allocation rate, and input / output I / O wait. The link evaluation unit is used to evaluate the quantum key distribution (QKD) channel conditions of the star-to-star link based on the quantum payload configuration and real-time key pool status of the on-orbit satellite, and generate a discrete quantum security level that characterizes the key negotiation success rate and key pool reserve. Predict deterministic network topology changes caused by satellite orbital motion using satellite ephemeris data, and generate timely Link State Advertisements (LSAs) containing future effective times and effective durations; The routing calculation unit is used to include the node processing load index as the node cost in the total path cost during the OSPF routing calculation process; and to calculate differentiated link costs for different service types of service flows by adjusting the weights of each component in the comprehensive link state metric. When calculating routes for service flows with a specified security level, links with a quantum security level lower than the security requirements of the service flow are excluded from the route calculation, or the quantum security level of the service flow is converted into a penalty factor and added to the link cost. The calculation of the comprehensive link state metric for star-to-star and star-to-ground links, which is a weighted combination of the reciprocal of the link bandwidth, normalized delay, link stability coefficient based on ephemeris prediction, and predicted bit error rate, includes: The link bandwidth B, link delay D, link stability coefficient S, and normalized prediction bit error rate are used. By synthesizing the link state metric formula Perform calculations; in, The preset reference bandwidth, S is the preset maximum acceptable delay. α, β, γ, and δ are non-negative weighting coefficients and their sum is 1. All weighting terms in the formula are dimensionless values, and 0 ≤ S ≤ 1.

8. The management system according to claim 7, characterized in that, The calculations include node processing load indices such as CPU utilization, memory allocation rate, and input / output I / O wait time, including: Based on the obtained CPU utilization Memory allocation rate and I / O latency The formula for processing load exponentially through nodes Calculated; in, The maximum I / O wait threshold is preset, and k1, k2, and k3 are non-negative load weight coefficients, with the sum of k1, k2, and k3 being 1.

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