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Low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling

A network addressing and low-orbit satellite technology, which is applied in the field of satellite mobile communication, can solve the problems of occupying storage resources, incompatibility with destination addresses, and large propagation delays, so as to save computing resources, solve uneven user density and address usage the insufficient effect of

Active Publication Date: 2018-11-23
BEIJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

[0007] (2) Compared with the ground network link, the propagation delay is relatively large
If the traditional snapshot sequence algorithm is used, millions of users need millions of routing entries, which will greatly occupy storage resources
At the same time, it is not compatible with the situation where the destination address is on the ground public network

Method used

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  • Low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling
  • Low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling
  • Low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling

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Embodiment Construction

[0056] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0057] The low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling proposed according to the embodiments of the present invention will be described below with reference to the accompanying drawings. Addressing and routing methods for orbital satellite networks.

[0058] There are two moving mechanisms in the low-orbit satellite network, one is the movement of satellites in the inter-satellite network, and the other is the movement of satellites to large areas on the ground. If th...

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Abstract

The invention discloses a low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling. The method comprises the following steps: performing inter-satellite network addressing; performing user addressing; establishing a first mapping table for determining a partition relationship between an own identifier of a satellite and the ground, and a second mapping table for determining a relationship between the own identifier of the satellite and a ground signal gateway station, and performing location management through the first mapping table and the second mapping table to perform routing forwarding through an inter-satellite network routing table snapshot, and realizing routing according to subnet numbers and host numbers, which are in one-to-one correspondence with IP address configuration and each large area. By adoption of the method, the bandwidth resources of the inter-satellite network and the computing resources of the satellites can besaved, the problem of uneven user density and insufficient address use in the large areas can be solved, the satellite snapshot storage resources are saved, and the completeness of the routing is improved.

Description

technical field [0001] The invention relates to the technical field of satellite mobile communication, in particular to a low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling. Background technique [0002] The satellite mobile communication system has the characteristics of wide coverage area, little influence of terrain and landform, and no impact of natural disasters. It is very suitable for remote area communication, special industry applications, border and coastal defense, overseas communication, and emergency communication in major disasters. At present and in the future, the application guarantee requirements in the fields of aerospace measurement and control, earth observation, and space science experiments have put forward urgent requirements for space information networks such as coverage, timeliness, flexibility, dynamic links, and transmission capabilities. [0003] Satellite communication plays an important ro...

Claims

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Application Information

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IPC IPC(8): H04L12/741H04L29/12H04B7/185H04L45/74
CPCH04B7/18519H04L45/745H04L61/255H04L61/45H04L61/5007
Inventor 刘江丁睿陈天骄刘亮黄韬赵源潘恬霍如何晓春罗睿智
Owner BEIJING UNIV OF POSTS & TELECOMM
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