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Planet-earth link switching method and planet-earth link switching mode selection processing device

A satellite-ground link switching and switching request technology, applied in the field of aerospace information, can solve the problem of not being able to flexibly select switching methods, single switching methods, etc., to ensure the communication energy requirements of switching services, reduce signaling resources, and reduce switching costs. Effect

Inactive Publication Date: 2007-08-22
BEIHANG UNIV
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Problems solved by technology

[0008] The technical problem to be solved by the embodiments of the present invention is to overcome the shortcomings of the prior art that cannot flexibly select the switching mode due to a single switching method, and provide a satellite-ground link switching method that can select different switching modes according to different switching types and a satellite-to-ground link switching mode selection processing device to solve the satellite-to-ground link switching problem from the physical layer, the link layer and / or the network layer respectively, so as to achieve the optimization of the satellite-to-ground link switching

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Embodiment Construction

[0018] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0019] The present invention overcomes the disadvantages of the single switching mode in the prior art and cannot flexibly select the switching mode, and can select the corresponding intra-area switching mode, inter-interval switching mode or inter-satellite switching mode to perform switching operations according to different switching types, respectively from the physical layer , link layer and / or network layer to solve the problem of satellite-ground link switching, so as to achieve the optimization of satellite-ground link switching.

[0020] An embodiment of the satellite-ground link switching method of the present invention includes: selecting a corresponding switching mode to perform switching operations according to the relationship information between the current beam and the target beam described in the switch...

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Abstract

A method for switching over link of satellite / ground includes selecting cell-in switching-over mode to carry out switching-over operation if current wave beam and object wave beam are in the same cell, selecting intercell switching-over mode to carry out switching-over operation if current wave beam and object wave beam are in the same satellite but not in the same cell and selecting intersatellite switching-over mode to carry out switching-over operation if current wave beam and object wave beam are not in the same satellite. The device used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a satellite-ground link switching technology in the field of aerospace information, in particular to a satellite-ground link switching method and a satellite-ground link switching mode selection processing device, belonging to the field of aerospace information. Background technique [0002] The space-based information system is a global integrated communication system with satellite nodes as the core, which has the advantages of seamless global coverage and fast mobile network deployment. However, due to the mobility of satellite nodes, there is relative movement between satellite nodes and ground mobile users, which makes ground users need to constantly cross different satellite beams or coverage areas, resulting in interruption of user communication. This phenomenon is called satellite-ground link switch. [0003] Satellite-ground link switching has an impact on the continuity of business communications, Quality of Service ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26H04W36/00H04W84/06
CPCH04B7/2041H04B7/18521H04B7/18541
Inventor 张军张涛郭欣
Owner BEIHANG UNIV
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