Method for allocating satellite network channels

A channel allocation and satellite network technology, applied in the field of satellite communication, can solve the problems of not providing satellites, unreasonable use of resources, and low data transmission efficiency, so as to achieve the effect of guaranteed transmission

Active Publication Date: 2013-08-14
DALIAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, there is no method for how satellites occupy channels during data communication and how to arrange and use ch

Method used

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  • Method for allocating satellite network channels
  • Method for allocating satellite network channels
  • Method for allocating satellite network channels

Examples

Experimental program
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Embodiment

[0030] Assume that there are C channels in a beam of a high-orbit satellite, and this beam is called the current beam. Then, when the low-orbit satellites are waiting in line, the maximum queue length is also C, and the C channel is allocated. R The channel is reserved for low-orbit satellites performing beam switching; the remaining C-C R The first bar is a common contention channel, which is used jointly by the low-orbit satellites with beam switching and the new call low-orbit satellites. Newly called low-orbit satellites and low-orbit satellites that need to switch beams use C-C in accordance with the FIFO principle, that is, the principle of first-in, first-obtained channels R channel.

[0031] When a low-orbit satellite needs to switch beams, the common contention channel is used first, and the reserved channel is used after all the common contention channels are occupied. If all the C channels are occupied, the low-orbit satellite that needs to switch beams sends out ...

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PUM

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Abstract

The invention discloses a method for allocating satellite network channels. The method comprises the steps as follows: GEO (geosychronons earth orbit) satellites are used for allocating channels for a plurality of waiting-in-line LEO (low earth orbit) satellites according to an FIFO (first in first out) principle; for LEO satellites sending call requests simultaneously, the GEO satellites allocate channels sequentially according to priority levels of the LEO satellite; the LEO satellites subjected to wave beam conversion utilize the channels in sequence of a common competitive channel and a reserved channel; and after the common competitive channel is used up, new-calling LEO satellites determine and use the reserved channels by a forcible occupy method. According to the method for allocating the satellite network channels, during satellite data communication, the GEO satellites can reasonably arrange the channels for the LEO satellites, so that the channels in the area covered by the GEO satellites can be utilized sufficiently, the LEO satellites receive the channels sequentially, and the normal operation of communication transmission is guaranteed.

Description

technical field [0001] The invention relates to the technical field of satellite communication, to a signal transmission mode between a high-orbit satellite and a low-orbit satellite, and in particular to a channel allocation method for a satellite network. Background technique [0002] Satellite communication has the advantages of wide coverage and not limited by ground infrastructure. At present, the application field of satellite communication is more and more extensive, especially in recent years, natural disasters such as earthquakes and floods have occurred frequently, and ground wired and wireless network equipment have been destroyed in disasters. , leading to communication interruption in the event of a disaster, the disaster situation cannot be transmitted in time, and the disaster relief is delayed. For this reason, more and more countries use low-orbit satellites to observe the environment, geology, and resources to ensure that information can be effectively tran...

Claims

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Application Information

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IPC IPC(8): H04W84/06H04W72/04
Inventor 潘成胜蔡睿妍罗弘维魏德宾
Owner DALIAN UNIVERSITY
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