Low earth orbit satellite network structure, networking method, controller and medium

Abstract

The invention relates to a low earth orbit satellite network structure, a networking method, a controller and a medium. The low-earth-orbit satellite network structure comprises a first controller installed on the ground and a plurality of low-earth-orbit satellites distributed on an earth low-earth-orbit longitude orbit, wherein the low-earth-orbit satellites are connected through physical links,the first controller communicates with the overhead satellites in the plurality of low-earth-orbit satellites, and the mutually connected low-earth-orbit satellites can communicate with each other. According to the invention, the structure of the low-orbit satellite network is simplified, the system deployment cost is greatly reduced, and the flexibility of the network is improved.

Description

technical field [0001] The invention relates to the technical field of low-orbit satellite communication, in particular to a low-orbit satellite network structure, a networking method, a controller and a medium. Background technique [0002] The low-orbit satellite network refers to a space network composed of several Low Earth Orbit (LEO) low-orbit satellites. With the success of satellite miniaturization, the manufacturing and launch costs of low-orbit satellites continue to decrease, which makes it possible to use low-orbit satellites to form an in-space switching network. The network operation mode of the existing low-orbit satellite network satellites are arranged according to a specific orbit, and a satellite is usually equipped with a ground station. Enable user-to-user communication or user access to the Internet, such as the Iridium system, such as figure 1 shown. [0003] It can be seen from this that in the existing low-orbit network system, the management and ...

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Problems solved by technology

[0003] It can be seen from this that in the existing low-orbit network system, the management and control of satellites is completed by the ground station, and the control can only be carried out when the satellite passes over the ground station. In the rest of the time, the satellite needs to have the ability to complete the network forwarding task independently. There is no or a small amount of inter-satellite links (for example, there are two experimental inter-satellite links on the Iridium system), and there is no networking capability. If the ground stations need to interact, they must rent the existing ground network. However, whether it is deploying ground stations globally or renting expensive bandwidth, it will cause huge cost consumption and increase the difficulty of maintenance. Therefore, traditional satellite network design cannot effectively achieve cost control, and the network flexibility is poor, which in turn affects network operating income.

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