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A Channel Dynamic Bandwidth Allocation and Access Method for Space Information Network

A technology of dynamic bandwidth allocation and spatial information network, applied in active electrical relay systems, electrical components, radio transmission systems, etc., to achieve the effect of effective communication

Inactive Publication Date: 2017-08-15
周在龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to solve the problem of dynamic allocation of channel bandwidth and how to access channels orderly and effectively for communication

Method used

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  • A Channel Dynamic Bandwidth Allocation and Access Method for Space Information Network
  • A Channel Dynamic Bandwidth Allocation and Access Method for Space Information Network
  • A Channel Dynamic Bandwidth Allocation and Access Method for Space Information Network

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Embodiment Construction

[0035] Attached below figure 1 The present invention is further described.

[0036] Scenario simulation: In the GEO satellite coverage area, there are multiple MEO / LEO satellites and aircraft want to communicate with them. Suppose the GEO satellite works in the L frequency band, the center frequency is 1.6GHz, and the available bandwidth B of the GEO satellite is 320MHz. Use one byte to divide the channel bandwidth, and divide it into 2 8 =256 shares, that is, the minimum value of the dynamically allocated bandwidth is 1.25MHz. Suppose there are A(0x0000001), B(0x0000002), C(0x0000001), D(0x0000002), E(0x0000001), F(0x0000002), G(0x0000001), H(0x0000007), I (0x0000002), J (0x0000001), K (0x0000000) a total of 10 aircraft enter (Note: A (e): A represents the name of the aircraft, e represents the length of the amount of data that the aircraft needs to transmit, expressed in hexadecimal), some The aircraft needs to communicate with the GEO satellite, but some aircraft have no...

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Abstract

The invention provides a satellite network handover method. The method specifically comprises the steps that: 1, a common MAC (Media Access Control) frame format is designed, such that a MAC layer can support various kinds of relevance between an LEO satellite and a GEO satellite, the frames comprise correlation request and response frames, re-correlation request and response frames, decorrelation frames and other management MAC frames; 2, meanwhile, in order to ensure the success rate and the reliability of the handover, priority is designed in the frame control domain of a common MAC frame header so as to ensure that the correlation management MAC frames have the highest priority when in handover; 3, a rapid and reliable satellite network handover process is invented through combining a space-based or a ground-based measurement and control communication management center under the attitude control effect of six pathway parameters, based on the above designed common MAC frames and specific correlation management MAC frames. The satellite network handover method although takes GEO / LEO satellites as examples for explanation, but also is applicable to the handover between GEO / LEO satellites.

Description

technical field [0001] The present invention relates to the field of dynamic bandwidth allocation and access method of channel in space information network, mainly aiming at channel of dynamic bandwidth allocated by synchronous (GEO) satellite to medium and low orbit (MEO / LEO) satellite and aircraft in its coverage area and The discussion on which access method to use aims to improve the utilization rate of channel resources, and this method is proposed on the basis of existing science. Background technique [0002] The basis of communication between MEO / LEO satellites or aircraft and GEO satellites is the allocation and access of channels. Whenever an aircraft enters or leaves the coverage area of ​​GEO satellites, a technology is needed to reassign the channels. A technology that enables aircraft to quickly and orderly access channels to ensure that channel bandwidth resources are fully utilized. The research survey found that there are some researches on satellite networ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185
CPCH04B7/18508H04B7/19H04B7/195
Inventor 周在龙
Owner 周在龙