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Inter-satellite network communication method, communication satellite and system

A technology for network communication and communication satellites, applied in the field of communication satellites, can solve the problems of low efficiency of network nodes, communication congestion, unusable routing lines, etc., and achieve the effects of improving self-management capabilities, reducing dependence, and reducing costs

Active Publication Date: 2020-08-25
ZHEJIANG GEESPACE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The network topology of static routing technology is relatively simple, and the network relationship between communication nodes is relatively fixed, but its disadvantages are also very obvious: the communication links between the nodes of the satellite network using static routing method can only be established in a fixed way, Communication hotspots will cause communication congestion of some nodes, and some nodes will be idle for a long time, resulting in reduced network communication efficiency
In addition, when a node in the network is abnormal, the routing line using this node cannot be used, and reconstruction cannot be realized quickly. It is necessary to re-allocate new routing tables to each node in the network, and the efficiency of network nodes is low.
In addition, the satellite constellation operation using the static routing method needs to rely on the support and management of ground stations in multiple places around the world, and it is impossible to realize the on-orbit autonomous management of the constellation

Method used

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  • Inter-satellite network communication method, communication satellite and system
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  • Inter-satellite network communication method, communication satellite and system

Examples

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no. 1 example

[0050] figure 1 It is a flowchart of the steps of the inter-satellite network communication method provided by the first embodiment of the present invention. figure 2 yes figure 1 Schematic diagram of the starting satellite and surrounding satellite nodes. The method can realize on-orbit autonomous management of satellite constellations, fast on-orbit reconfiguration, and efficient operation of dynamic routing methods, and the method can be executed by the initial satellite that initiates communication. Please refer to figure 1 and figure 2 , the inter-satellite network communication method of this embodiment may include the following steps S1-S7.

[0051] Step S1, receiving an information sending request from the originating end, wherein the originating end initiates an information sending request, and sends the target information to the satellite node in the current originating service area, the satellite node in the current originating service area is the starting sat...

no. 2 example

[0082] image 3 It is a main structural block diagram of the communication satellite provided by the second embodiment of the present invention. The communication satellite can realize on-orbit autonomous management, on-orbit fast reconfiguration, and a dynamic routing method with efficient operation. see image 3 , the communication satellite includes: a request module 30, a first sorting module 31, a second sorting module 32, a third sorting module 33, a communication link node determination module 34, a communication link establishment module 35 and an information sending module 36.

[0083] More specifically, the request module 30 is configured to receive an information transmission request from the originator, wherein the originator initiates an information transmission request, and sends the target information to a satellite node in the current origination service area, and the current satellite node in the origination service area is the initial satellite, The target ...

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Abstract

The embodiment of the invention discloses an inter-satellite network communication method, a communication satellite and a system, and belongs to the technical field of satellite communication. The method comprises the following steps: performing inter-satellite network communication; receiving an information sending request, and finding each node for establishing a communication link through a three-time sorting method; sequentially sending the target coordinate information and the node broadcast information to a next sending node till the information is transmitted to an end node which can establish a communication link with the target so as to establish the connection between the end node and the target; receiving target response feedback transmitted by the end node through the satellite nodes of the communication link in sequence, sending the target response feedback to the sending end so as to establish a dynamic communication link from the sending end to the target, and transmitting the information of the sending end to the end node through the established dynamic communication link so as to enable the end node to send the information to the target. According to the invention, the dynamic routing method can realize satellite constellation on-orbit autonomous management, on-orbit rapid reconstruction and efficient operation.

Description

technical field [0001] The invention relates to the technical field of communication satellites, in particular to an inter-satellite network communication method, a communication satellite and a system. Background technique [0002] In recent years, people's demand for satellite communication has been increasing. Compared with geostationary orbit communication satellites, low-orbit communication satellites have the advantages of small communication delay and convenient miniaturization of terminals. However, in order to give full play to the effectiveness of low-orbit communication satellites, a global network of satellites must be realized to ensure real-time and uninterrupted communication coverage on the ground. This situation gave birth to the development of inter-satellite link technology. [0003] A key technology in the inter-satellite link technology is the inter-satellite link routing technology. The current relatively mature inter-satellite link routing technolog...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18558H04B7/1851
Inventor 王涵田胜金邱家齐张晶晶刘武
Owner ZHEJIANG GEESPACE TECH CO LTD