Hierarchical network operation and maintenance and resource management and control system and method for giant satellite constellation

Abstract

The invention belongs to the technical field of spatial information, and discloses a hierarchical network operation and maintenance and resource management and control system and method for a giant satellite constellation, and the system comprises a service layer, a global organization layer, a local coordination layer, and a resource layer. The business layer serves as input to drive the operation of the whole system; the global organization layer realizes measurement, operation and control integrated control and decision-making of the whole network; the local coordination layer realizes local management and control decision and management and control slice generation; and the resource layer provides physical resources and physical equipment and realizes resource virtualization. According to the method, the local coordination layer controllers are arranged on the high-orbit satellites or the medium-orbit satellites, so that the arrangement of the local coordination layer controllers is not limited by global station arrangement, the management and control of a large-scale low-orbit satellite constellation are realized, and an approximate calculation formula of the number of the local coordination layer controllers under the scale of the low-orbit satellite constellation is given; and a theoretical basis is provided for satellite constellation system design and controller layout.

Description

technical field [0001] The invention belongs to the technical field of space information, and in particular relates to a hierarchical network operation and maintenance and resource management and control system and method for giant satellite constellations. Background technique [0002] At present, the giant satellite constellation is a network that transmits and processes business data of various user nodes (handheld terminals, Internet of Things nodes, vehicle nodes, aircraft nodes, etc.) system, and then meet the major application requirements such as Internet connection, data acquisition, voice communication, navigation and positioning in areas without terrestrial cellular network coverage, and ensure the service effectiveness and reliability in areas with low terrestrial cellular network service performance, so as to integrate Internet and communication services Expand to global, space, and even deep space. With the development of satellite and communication technology...

AI Technical Summary

Problems solved by technology

[0007] (1) The control delay of centralized control is relatively large, and the control center has a heavy burden; at the same time, the control signaling needs to be transmitted back to the nearby ground gateway station for processing through the inter-satellite link, resulting in the ground gateway station and local satellite network. Congestion, and a large number of signaling backhauls will increase the network load and increase the management and control overhead

[0008] (2) Distributed controllers of the same level are usually deployed on ground gateway stations or low-orbit satellites. These controllers need to interact continuously to obtain information about the entire network. Therefore, this architecture will increase network control overhead and network load, and The number of controllers is directly proportional to the size of the network, so it is not suitable for giant satellite networks

[0009] (3) In the hierarchical and hierarchical controller layout architecture, the high-level controller can connect and control multiple low-level controllers, and distribute information to the low-level controllers. The low-level controllers are responsible for managing all networks within their control areas Nodes, in which high-level controllers are usually deployed on ground gateway stations, while low-level controllers are deployed on low-orbit satellites, medium-orbit satellites, or high-orbit satellites. However, deploying controller loads for large-scale satellite nodes will undoubtedly increase satellite manufacturing and operating cost

[0010] (4) The distributed controller layout architecture does not give the specific functional module design and control methods inside the controller, nor does it consider the application scenarios of the future giant satellite network, the deployment cost of the controller, and the limitations of global deployment. , and cannot meet the urgent needs of future satellite network measurement, operation and control integration

[0011] The difficulties in solving the above problems and defects are as follows: (1) It is difficult to integrate the design of network measurement, operation and control function modules, clarify the mutual cooperation relationship between modules, and form a complete network operation and maintenance and resource management and control method; In the controller layout architecture, it is difficult to reasonably divide the specific functions of different levels of controllers; (3) the problem of poor control timeliness caused by the inability of my country's satellite system to deploy ground stations around the world is difficult to solve.

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