Time synchronization method for inter-satellite and intra-satellite integrated communication based on TSN

The invention provides a time synchronization method for inter-satellite and intra-satellite integrated communication based on a TSN, which can realize a time sensitive network protocol between satellites and in satellites and realize time synchronization of inter-satellite and intra-satellite data communication. According to the invention, corresponding scheduling mechanism algorithms are respectively researched according to service requirements of intra-satellite and inter-satellite communication, a time-sensitive network protocol is realized between satellites and in satellites, data communication is carried out, and the method relates to a TSN standard. According to the method, the time synchronization requirement is low under the condition that the time-sensitive service requirement is met, the implementation cost and complexity are reduced compared with those of a TTE network, TTE clock synchronization is based on an IEEE 1588 protocol, and the time synchronization precision reaches 100 ns; the TSN cloc