Discussion On Space-Earth Integration Transmission Mechanism Of Space Information Network Based On Ccsds Protocols

To suit the change of the current space transmission network from the single bus network to the complex multistage switching network, a data exchange mechanism is proposed based on CCSDS protocols including uplink data transmission format and downlink data transmission format. It can solve the problem that the single level network can not be solved the uplink data distribution at the two kinds of states, as well as multi- level backup and independent scheduling for the downlink data, thus saving channel resources and isolating fault.