IP addressing method and apparatus of polar-orbit low-orbit satellite network

A technology of satellite network and addressing method, which is applied in the field of aerospace information, can solve the problems of frequent update of IP addresses of mobile users and low network operation efficiency, and achieve the effect of reducing update frequency and improving operation efficiency

Active Publication Date: 2017-03-22
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a polar orbit low orbit satellite network IP addressing method and device to solve the problems of frequent updating of mobile user IP addresses and low network operation efficiency due to frequent switching of satellite coverage areas by mobile users

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  • IP addressing method and apparatus of polar-orbit low-orbit satellite network
  • IP addressing method and apparatus of polar-orbit low-orbit satellite network
  • IP addressing method and apparatus of polar-orbit low-orbit satellite network

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Embodiment 1

[0028] figure 1 It is a flowchart of an IP addressing method for a polar-orbit low-orbit satellite network provided by an embodiment of the present invention. The embodiment of the present invention aims at the frequent update of the IP address of the mobile user and low network operation efficiency due to the frequent switching of the satellite coverage area by the mobile user, and provides an IP addressing method for the polar orbit low orbit satellite network. The specific steps of the method are as follows:

[0029] Step S101 , according to the distribution law of satellite nodes in the polar-orbit low-orbit satellite network, determine multiple geographical divisions on the earth's surface.

[0030] Among them, the satellite nodes in the polar-orbit low-orbit satellite network have the following distribution rules: the polar-orbit low-orbit satellite network includes multiple polar orbits with the same radius, each polar orbit has multiple satellite nodes, and the planes ...

Embodiment 2

[0052] On the basis of the first embodiment above, in the second embodiment of the present invention, the plurality of geographical divisions divided into the earth's surface have the following characteristics: the number of geographical divisions is equal to the number of satellite nodes in the low-orbit satellite network; A division is a regular area enclosed by the intersection of two longitude lines with a preset longitude interval and two latitude lines with a preset latitude interval on the earth's surface; where the preset longitude interval is the longitude between two adjacent polar orbits difference, and the preset latitude interval is the latitude difference between two adjacent satellite nodes in each polar orbit.

[0053] figure 2 Schematic diagram of geographical division arrangement where n is an even number provided by Embodiment 2 of the present invention; image 3 Schematic diagram of geographical division arrangement where n is an odd number provided for E...

Embodiment 3

[0071] Figure 5 It is a flowchart of an IP addressing method for a polar-orbit low-orbit satellite network provided by Embodiment 3 of the present invention. On the basis of the above-mentioned embodiment two, based on the division of the geographic partitions in the above-mentioned embodiment two, according to the complete IP address segment, determine the IP address segment of each geographic partition in multiple geographic partitions, including: obtaining the IP address of each geographic partition Quantity; according to the number of IP addresses in each geographical division and the complete IP address segment, determine the IP address segment of each geographical division, and the IP address segments of each geographical division do not overlap. Such as Figure 5 Shown, this polar orbit low orbit satellite network IP addressing method comprises the following steps:

[0072] Step S201 , according to the distribution law of satellite nodes in the polar-orbit low-orbit sa...

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Abstract

The embodiment of the invention provides an IP addressing method and apparatus of a polar-orbit low-orbit satellite network. The IP addressing method provided by the embodiment of the invention comprises the following steps: dividing an earth surface into a plurality of geographical zones according to a distribution rule of satellite nodes, allocating fixed IP address segments to the geographical zones, allocating IP addresses to ground ports of the satellite nodes according to the geographical zones corresponding to the satellite nodes, and allocating IP addresses to mobile users according to the geographical zones of the mobile users. Moreover, only when the mobile users span the geographical zones, the IP addresses of the mobile users are updated. Since the moving speeds of the mobile users relative to the geographical zones are much smaller than the moving speeds of the mobile users relative to the satellite nodes, the frequency of the mobile users to span the geographical zones is much smaller than the frequency of the mobile users to convert the coverage of the satellite nodes, therefore by adoption of the IP addressing method and apparatus of the polar-orbit low-orbit satellite network provided by the embodiment of the invention, the frequency of updating the IP addresses of the mobile users is greatly reduced, and thus the operating efficiency of the satellite network is improved.

Description

technical field [0001] The embodiment of the present invention relates to the field of aerospace information, in particular to a method and device for IP addressing of a polar-orbit low-orbit satellite network. Background technique [0002] The low-orbit satellite network is a global integrated communication system with low-orbit satellite nodes as the core. Polar-orbit low-orbit satellite network is centered on polar-orbit low-orbit satellite nodes. Due to the advantages of seamless global coverage and flexible deployment, the polar-orbit low-orbit satellite network not only has a special status in military and aerospace technology, but also has a wide range of It is used in civil data communication fields such as navigation, positioning, weather forecast, and live TV, and has a very large mobile user group. [0003] The traditional IP addressing method for low-orbit satellite network is to set a fixed IP address for each satellite node's port to the ground. When the mobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L29/12
CPCH04B7/18571H04B7/18573H04L61/5007
Inventor 张涛刘亮
Owner BEIHANG UNIV
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