Analysis and Research on Dynamic Sharing Resource Reservation Method for Deterministic Services in Satellite Network

Facing the end-to-end transmission requirements of "High reliability” and “Time certainty" for deterministic services, combining with the limited resources and long delay transmission characteristics of satellite network, a dynamic sharing resources reservation method for deterministic services (DSRR) is proposed, which divides the available resources of satellite network into three parts: reserved resources, shared resources and other resources. Resources used for deterministic and general services are dynamically allocated through shared resources, which allows shared resources to be used for general services under the premise of priority use by deterministic services. This method improves the satellite network resource utilization as well as service throughput rate under the premise of guaranteeing the QoS of deterministic services, and reduces the collision probability of deterministic services and general services. It has high application value in future 5GA/6G Satellite-terrestrial Integrated Networks.