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Link layer and network layer combined control multi-satellite networking method

A technology of joint control and multi-satellite networking, applied in the field of satellite communication, can solve the problems such as the inability of fast convergence of routes and the difficulty of fast access to the network for terminals, so as to improve the ability to access the network at will, reduce the number of interactions and bandwidth overhead, and reduce network access. Effects of time and route convergence time

Pending Publication Date: 2022-01-21
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

However, in the multi-satellite networking scenario, there are still problems in the prior art that routes cannot be quickly converged and terminals are difficult to quickly access the network

Method used

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  • Link layer and network layer combined control multi-satellite networking method
  • Link layer and network layer combined control multi-satellite networking method
  • Link layer and network layer combined control multi-satellite networking method

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] figure 1 Shown is the application scenario of satellite terminals connecting to the network in a multi-satellite networking system, which includes satellite terminals, satellite payloads and ground gateway stations. Among them: network control agent and access routing agent are deployed in the satellite terminal; on-board switching, on-board network control, backbone routing service and access routing service are deployed in the satellite payload; backbone routing service and switching are deployed in the ground gateway station Equipment and satellite network operation and maintenance system. Satellite terminals and satellite payloads are connected through satellite-ground links; satellite payloads are connected through inter-satellite links; satellite payloads and ground gateway stations are connected through feeder links.

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Abstract

The invention discloses a link layer and network layer combined control multi-satellite networking method, and relates to the field of satellite communication. According to the method, when a satellite terminal applies for accessing a satellite network, a link layer dynamically selects a network access beam and a port, and triggers a network layer to execute user route registration and whole network diffusion, so that the interaction times and bandwidth overhead of a networking protocol are reduced, and rapid convergence of the route and rapid network access of the terminal are realized. According to the invention, the network access time and the routing convergence time of the multi-satellite networking system can be reduced, and the random network access capability is improved.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a multi-satellite networking method jointly controlled by a link layer and a network layer. Background technique [0002] The development of satellite communication has a history of more than half a century. Due to its global coverage, not limited by ground obstacles, and rapid deployment, it can provide stable communication capabilities to multiple users across continents and oceans, and it can handle emergencies in areas where the location, time, and intensity are unpredictable. Therefore, satellite communication has become one of the irreplaceable core communication means. Satellite communication technology has also become an important indicator to measure a country's core competitiveness. [0003] Today, with the promotion and development of on-board payload technology, the satellite communication system is gradually developing in the direction of on-board p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/1853H04B7/18528H04B7/18539H04B7/18558
Inventor 马宁王金海张亚生尹波马宇飞李策李龙鹏于昊楠韩贺王硕
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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