Method for fast access after small station communication interruption in satellite communication system

Abstract

The invention provides a rapid access method for a satellite communication system after a station communication interrupts. The method comprises the following steps: judging a state of the station before abnormally getting off the line: if the station is in synchronous holdover mode, withdrawing all the service time slots which are planned to be allocated to the station, changing the synchronous holdover time slots which are allocated to the station into login time slots which are allocated to the station for sending login information, judging whether the login information of the station is received in a specified number of attempt times, if the information is normally received, then the station normally gets on the line, if the information is abnormally received, withdrawing the allocated login time slots, then the station fails to get on the line; if the station is in synchronous process, allocating periodical login time slots to the station, judging whether the login information of the station is received in the specified number of the attempt times, if the information is normally received, then the station normally gets on the line, or the station fails to get on the line.

Description

technical field [0001] The present invention relates to the technical field of satellite communication, in particular to a method for quickly accessing a small station in a satellite communication system after communication interruption, and further the present invention relates to a method for rapidly restoring communication of a small station in a satellite two-way interactive system. Background technique [0002] Satellite communication is not restricted by geographical environment and distance. Its point-to-multipoint, point-to-surface coverage advantages and flexible mobility make satellite communication have obvious advantages in the field of communication. With the rapid development of satellite broadband multimedia communication, the satellite communication system is evolving to a broadband network system that supports higher transmission rates, larger capacity, more flexible services, and more complex multimedia services. Different QoS (Quality of Service) requires t...

AI Technical Summary

Problems solved by technology

At present, there are mainly two types of link establishment and recovery methods commonly used at home and abroad: one is the link establishment method based on the service level, and the reasonable division of user levels is the key to the realization, otherwise the link establishment will fail and the system will fail. Deterioration of performance; one is the method based on reserved time slots, reasonable reserved time slots are the key to realization, otherwise it will cause waste of bandwidth resources and reduce system capacity

[0005] In the existing link establishment and recovery strategy, the single method of link establishment based on the service level cannot provide different recovery processes for the abnormal state of the user in real time, and the single method based on the reserved time slot cannot make full use of system resources , resulting in a serious waste of satellite channel resources

Images