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Spatial information network resource double-layer scheduling method and system

A space information network and two-tier scheduling technology, which is applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problems of limited number and resources of medium and high orbit satellites, and achieve the effect of improving reliability and stability

Active Publication Date: 2016-12-14
TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

However, the number and resources of medium and high orbit satellites used for relay transmission are limited

Method used

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  • Spatial information network resource double-layer scheduling method and system
  • Spatial information network resource double-layer scheduling method and system
  • Spatial information network resource double-layer scheduling method and system

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Embodiment Construction

[0042] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0043] Such as figure 1 As shown, it is a two-layer scheduling method for spatial information network resources described in Embodiment 1 of the present invention, which is applied to a space-based scheduling center and includes the following steps:

[0044] Step 1: The space-based sensing node counts the task requirements of the sensing node every fixed time period;

[0045] Step 2: The space-based sensing center collects information such as task bandwidth requirements and delay requirements of each space-based sensing node according to a fixed time period;

[0046] Step 3: The space-based sensing center generates a matrix scheduling table, including a data uplink scheduling table and a data downlink scheduling ta...

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Abstract

The invention relates to a spatial information network resource double-layer scheduling method and system. The spatial information network resource double-layer scheduling method applied to a space-based scheduling center comprises the steps that space-based sensing nodes carry out statistics task demands of the sensing nodes every other a fixed time period; a space-based sensing center collects information such as task bandwidth demands and delay demands of the space-based sensing nodes according to the fixed time period; and the space-based sensing center generates a matrix scheduling table according to an pre-appointed priority strategy through combination of the delay demands and the bandwidth demands, wherein the matrix scheduling table comprises a data uplink scheduling table and a data downlink scheduling table, and the space-based sensing center sends the data uplink scheduling table to a ground sensing center. According to the method and the system, the problem that an existing spatial information network is limited in global coverage capability and low in network expansion and coordinate application capability is solved, and the optimization reliability and stability for end-to-end transmission capacity under great space-time span are greatly improved.

Description

technical field [0001] The invention relates to a two-layer scheduling method and system for space information network resources, belonging to the technical field of space information networks. Background technique [0002] As an important infrastructure of the country, the space information network can serve many fields such as ocean navigation, emergency rescue, navigation and positioning, air transportation, and aerospace measurement and control. However, the dynamic changes of the space information network network system and the frequent connection / interruption of communication links make the available network bandwidth and service quality of the network change at different times, and the requirements for the information transmission bandwidth of various aircraft are also different. Similarly, for example, giving priority to space information operations in wartime can improve the real-time and effectiveness of operations; giving priority to emergency events in peacetime,...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L12/911
CPCH04B7/18504H04B7/18508H04B7/18519H04B7/18539H04L47/782
Inventor 曹素芝展月英吴少俊
Owner TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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