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Label distribution method suitable for multi-satellite multi-beam satellite communication system

A technology of a satellite communication system and an allocation method, which is applied in the field of label allocation of a multi-satellite multi-beam satellite communication system, can solve the problems of high node and channel overhead, unsuitable for satellite communication systems, etc., and saves satellite channel bandwidth resources and guarantees Flexibility, the effect of simplifying the distribution process

Inactive Publication Date: 2019-12-20
ARMY ENG UNIV OF PLA
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, this label-based switching method requires a large node and channel overhead in label allocation, and is not suitable for satellite communication systems with scarce resources.

Method used

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  • Label distribution method suitable for multi-satellite multi-beam satellite communication system
  • Label distribution method suitable for multi-satellite multi-beam satellite communication system
  • Label distribution method suitable for multi-satellite multi-beam satellite communication system

Examples

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Embodiment Construction

[0023] For two different services, circuit service and packet service, the present invention proposes different label allocation processes; for packet switching messages with different priorities, different label allocation methods are proposed. Specifically as follows:

[0024] After the service terminal submits the label application, the on-star online control completes the local label allocation, including the allocation of incoming labels and outgoing labels, and writes the two and the corresponding port mapping relationship into the on-star label forwarding table. The format of the label forwarding table on the star is as follows figure 1 shown.

[0025] For circuit switching, the label distribution is completed by the satellite network control when the call is applied. After the terminal initiates a call application, the satellite online control judges the legitimacy of the calling terminal and the idle state of the called terminal, and then initiates paging signaling...

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Abstract

The invention discloses a label distribution method suitable for a multi-satellite multi-beam satellite communication system, and provides different label distribution processes for two different services of a circuit service and a packet service, proposes different label distribution modes for the packet service messages with different priorities. According to the invention, the label can be allocated to the packet entering the satellite network in the satellite edge switching router LER; the on-board switch can perform two-layer quick forwarding by processing and identifying the label, can provide sufficient flexibility for the system, is low in cost in the distribution process, and can realize quick message exchange through simple and efficient processing.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a tag distribution method applicable to a multi-satellite multi-beam satellite communication system. Background technique [0002] In the multi-satellite multi-beam satellite communication system, there are interstellar links between satellites. Each satellite coverage area includes multiple beams, and usually adopts multi-frequency time-division multiple access. port. When routing and exchanging messages, the third layer determines the output port of the message by looking up the routing table, and sends the message to the queue corresponding to the output port; while at the second layer, it needs to determine the carrier used when receiving and sending the message and time slot resources to realize fast exchange of messages. [0003] In order to support various types of services and make full use of system resources, the multi-satellite multi-beam satellite co...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/723H04L12/841H04B7/185H04L45/50
CPCH04L45/507H04L45/66H04L47/283H04B7/18584
Inventor 续欣汤凯
Owner ARMY ENG UNIV OF PLA
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