Method, device and system for converging topology information of satellite communication network
A technology of topology information and satellite communication, applied in the field of satellite communication network, can solve the problem of slow convergence speed of topology information
Active Publication Date: 2022-08-05
BEIJING UNIV OF POSTS & TELECOMM
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[0004] In view of this, the purpose of one or more embodiments of this specification is to propose a topology information convergence method, device and system for a satellite communication network to solve the problem of slow topology information convergence
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[0058] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the specific embodiments and the accompanying drawings.
[0059] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of the present specification shall have the usual meanings understood by those with ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and similar terms used in one or more embodiments of this specification do not denote any order, quantity, or importance, but are merely used to distinguish the various components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connec...
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One or more embodiments of this specification provide a method, device, and system for converging topology information of a satellite communication network, including determining a first satellite node and a second satellite node with the farthest distance according to a network topology structure, and determining the first satellite node. The shortest path between the second satellite node and the domain head node is selected from each satellite node on the shortest path, and the shortest path between the domain head node and other satellite nodes is determined as the information transmission path. The link state information is transmitted to the domain head node through the information transmission path, and the domain head node transmits the received link state information to the upper-layer satellite node, so that the upper-layer satellite node calculates and updates the network topology information according to the received link state information, or Transmit the received link status information to the ground control center. The method of this specification can improve the convergence speed of topology information and ensure the service function of the satellite communication network.
Description
technical field [0001] One or more embodiments of this specification relate to the technical field of satellite communication networks, and in particular, to a method, device, and system for converging topology information of a satellite communication network. Background technique [0002] Satellite communication network is one of the research hotspots in the field of communication. In the architecture based on Software Defined Satellite Network (SDSN), topology information convergence methods mainly include timing query method and active reporting method. Timing query method refers to ground control. The center regularly issues topology convergence instructions, and the Geostationary Earth Orbit (GEO) satellites deployed with the controller receive the topology convergence instructions and notify each satellite node in the control domain to report the current link status information. After each satellite node receives the notification Submit the locally stored link status i...
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IPC IPC(8): H04W40/02H04W84/06H04L45/12
CPCH04W40/02H04W84/06H04L45/12
Inventor 赵永利王芷晴王伟何芯逸张杰
Owner BEIJING UNIV OF POSTS & TELECOMM