Start carried routing switching system for broadband satellite communication

Abstract

The utility model relates to a space-borne routing exchange system used for broad band satellite communication, comprising a plurality of user interface units which are respectively connected with a plurality of user physical layer processing units and a main-control routing exchange unit, and used for multi-user connection, rapid frame exchange and data processing; an inter-satellite link interface unit which is respectively connected with a multi inter-satellite link physical layer processing unit and a main control routing exchange unit and is used for performing inter-satellite wireless link processing of data transmitted by a plurality of inter-satellite link physical processing unit; a feeder link interface unit which is respectively connected with a feeder link physical layer processing unit and the main control routing exchange unit and used for performing the feeder wireless link processing; a main control routing exchange unit which is respectively connected with a pluralityof user interface units, an inter-satellite link interface unit and a feeder link interface and used for receiving various data and control information inputted into all the above units, thereby performing pocket forwarding and maintaining network status information and finishing interactive network protocol. The utility model has advantaged that the system can ensure the Qos of network operationeffectively and control network traffics.

Description

technical field [0001] The invention relates to a space-borne routing switching communication system, in particular to a space-borne routing switching system applied to broadband communication satellites, and belongs to the technical field of aerospace communication. Background technique [0002] The space-based information network is a satellite network (space-based), which integrates space-ground information, and consists of various types of satellite systems in different orbits. An intelligent system. The network integrates a variety of aerospace information systems, has independent information acquisition, storage, processing and distribution capabilities, and can be interconnected with land, sea, and air-based information systems to realize multiple and three-dimensional sharing of information and become the next generation of mobile communication ( 4G) and an important part of the national information superhighway. [0003] Space-borne routing and switching technolog...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned on-board routing and switching systems all have the following defects: they cannot be effectively compatible with the widely used Internet (Internet) based on the Internet Protocol (hereinafter referred to as: IP); for data, especially for burst services, the network efficiency is low ; Difficult to support multicast; ATM complex signaling system is difficult to adapt to the satellite network with frequent topological changes, and the signaling overhead is huge; the cell header overhead is too large, and the bandwidth utilization rate is low, etc.

[0006] The space-borne IP switching system can provide seamless connection with the ground Internet, and it is simple to implement. It can solve the defects of the above-mentioned space-borne routing and switching systems, and has a good application prospect, but it cannot guarantee the QoS of network services and control network traffic. , in the terrestrial network, the above problems can be solved through the spaceborne IP / MPLS switching system, effectively guaranteeing the QoS of network services and controlling network traffic

However, due to the characteristics of multi-beam design, mobile wireless access, limited on-board processing resources and dynamic network topology of mobile satellites, the existing IP / MPLS switching technology cannot be effectively applied to satellite networks, and thus cannot overcome the existing Defects in the spaceborne IP switching system that cannot guarantee the QoS of network services and control network traffic

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