Satellite communication networking system and working method thereof

Abstract

The invention discloses a satellite communication networking system and a working method thereof. In the system, a central satellite master station, a distributed central satellite station and a common satellite station communicate with one another through an asynchronous time division multiple access network,wherein the asynchronous time division multiple access network adopts a centerless and asynchronous access mode, the forward link adopts a time division multiplexing mode, and the asynchronous time division multiple access network is suitable for a star network and mesh network topological structure networking mode; a small-caliber antenna satellite station communicates with other satellite stations through a small-caliber antenna satellite station backhaul network; the small-caliberantenna satellite station return network receives forward carrier data of the asynchronous time division multiple access network and is used for forward communication of a small-caliber antenna satellite station and receiving of high-speed large-capacity data, the reverse link uses independent carriers for back transmission, and the reverse link supports the code division multiple access network,the frequency division multiple access network and the time division multiple access network to achieve multiple access. The system can dynamically adjust and manage system resources according to changes of transmission service data.

Description

[0001] This application is a divisional application of a patent application with an application date of February 10, 2017, an application number of 201710072863.3, and an invention title of "a satellite communication networking system and its working method". technical field [0002] The invention relates to the technical field of communication, in particular to a satellite communication networking system and a working method thereof. Background technique [0003] Compared with other communication methods, the biggest advantage of satellite communication is that it has nothing to do with distance, and it is basically not restricted by the ground environment. Resource detection, etc.), military communications, etc., and these application scenarios are characterized by hierarchical management, such as the head office has multiple branches, each branch has multiple subsidiaries, and each subsidiary may have multiple engineering projects Group, when cross-regional or even transn...

AI Technical Summary

Problems solved by technology

[0012] The satellite communication network with a mesh structure generally has no main site nodes, and the service data transmission between each node is realized through time division or other multiplexing and multiple access technologies between satellite stations. Although the mesh structure improves the overall network flexibility, but the transmission capacity between nodes is limited, that is, it cannot support large-capacity data transmission

[0013] Although the point-to-point satellite communication network can meet the transmission requirements of large-capacity data, its structure is fixed and the application scenarios are relatively simple.

[0014] In view of the needs of the current complex transmission business, the network management of the existing solution adopts a hierarchical model, and the business data transmission between different subnets is still forwarded through the intermediate nodes, which makes the network structure system not only complex, but also requires technical requirements, cost and system maintenance difficulty. higher

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