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Simplified protocol stack routing and neighbor discovery method applied to space-ground integrated network

A protocol stack and routing technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as waste of computing resources, poor security, and prolonged data processing, so as to simplify the work of address processing and improve security , reduce the effect of bandwidth resources and power consumption

Active Publication Date: 2020-11-03
BEIJING JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of waste of computing resources, long data processing delay and poor security of the space-ground integrated network in the prior art, so as to provide a streamlined and efficient data sending and receiving method based on the space-ground integrated network and device

Method used

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  • Simplified protocol stack routing and neighbor discovery method applied to space-ground integrated network
  • Simplified protocol stack routing and neighbor discovery method applied to space-ground integrated network
  • Simplified protocol stack routing and neighbor discovery method applied to space-ground integrated network

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Embodiment 1

[0046] The application environment of this embodiment is a space-ground integrated network based on the identification network, and the network structure is as follows figure 1 As shown, it is mainly composed of a space-based backbone network, a space-based access network, and a ground-based node network. The operating nodes in the space-based backbone network are high-orbit satellites, and the operating nodes in the space-based access network are low-orbit satellites. The space-based backbone network is used for high-orbit user terminal access, the space-based access network is used for low-orbit user terminal access, and the ground-based node network is used for ground user terminal access. All network status can be operated by a network management controller. dimension management.

[0047] The space-ground integrated network in this embodiment includes the above-mentioned space-based backbone network and space-based access network. This embodiment includes the sending and ...

Embodiment 2

[0072] This embodiment provides a data receiving method based on the space-ground integrated network, such as Figure 5 shown, including the following steps:

[0073] S510: The network interface layer receives the data packet to be received and transmits it to the network layer.

[0074] When acting as a receiving node, the network interface layer transmits the received data packets to the network layer, transport layer and application layer in sequence, and each layer encapsulates the corresponding packet header information.

[0075] S520: Parse the to-be-received data packet, and acquire a source node identifier and a destination node identifier in the to-be-received data packet.

[0076] S530: Look up a routing table to perform host routing according to the destination node identifier, and determine whether the next-hop node identifier corresponding to the destination node identifier is a local address.

[0077] The structure of the routing table is as follows image 3 s...

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Abstract

The invention discloses a simplified protocol stack routing and neighbor discovery method applied to a space-ground integrated network, which comprises the following steps: a protocol stack communication address is an identifier with the length of 16 bits, a routing table maintained by a routing subsystem is a three-level hash chain table, and a data packet routing mode is host routing, so that the routing efficiency is further improved. A data packet passes through a routing subsystem to obtain a next-hop node identifier and exit equipment, then the data packet is transmitted to a neighbor subsystem, a corresponding next-hop node Mac address is obtained in the neighbor subsystem according to the next-hop node identifier, maintenance and management are carried out on the neighbor subsystemthrough an identifier neighbor analysis protocol, and the whole network state is monitored. The method effectively solves the main challenges faced by the space-ground integrated network, such as topology dynamic change, node capability limitation, transmission time delay and the like, can improve the security of the backbone network and reduce the bandwidth resource and power consumption of thenetwork, and is suitable for a satellite network environment.

Description

technical field [0001] The invention relates to the field of space-ground integrated network technology, in particular to a simplified protocol stack routing and neighbor discovery method applied to the space-ground integrated network. Background technique [0002] The space-ground integrated network combines the ground network and the space network to create a brand-new strategic network, which is mainly divided into ground-based node network, space-based access network and space-based backbone network. The ground network and mobile communication network cooperate together. In order to realize the information network with global coverage, high security, on-demand service and good intervention. [0003] However, the traditional satellite communication has the problems of weak synergy and poor networking, and the number of nodes contained in the satellite network is far less than that contained in the ground network, and the delay problem of the network is more prominent than...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/751H04L12/717H04L45/74H04L45/02H04L45/42
CPCH04L45/74H04L45/02H04L45/42
Inventor 杨冬张宏科刘付军王洪超冯博昊关涛臧肖
Owner BEIJING JIAOTONG UNIV
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