Adaptive Location Management Method for Satellite Communications Oriented to Typical Mobility Characteristics

Abstract

The invention discloses a satellite communication self-adaptive position management method oriented to typical mobile characteristics. The steps are as follows: the mobile user constructs, updates and continuously monitors the moving track list, and judges whether to enter the reciprocating state or the usual track state; The station sends a reciprocating beam / trajectory binding request; the gateway station binds the beam included in the request information with the mobile user, and sends a binding confirmation message to the mobile user; When the mobile user enters a beam other than the bound beam, it sends a beam unbinding request to the gateway station; the gateway station releases the beam binding of the mobile user and sends an unbinding confirmation message. Aiming at two typical moving states of mobile users, reciprocating and habitual trajectories, the present invention proposes a location management method that adapts to the moving characteristics of the state, and can effectively reduce the resource overhead of location updating.

Description

technical field [0001] The invention relates to satellite mobile communication technology, in particular to a satellite communication self-adaptive position management method oriented to typical mobile characteristics. Background technique [0002] Location management technology is the key technology of network mobility management in satellite mobile communication system, which affects the performance and operation cost of the whole system. Location management consists of two processes, location update and system paging. When the mobile ground station passes through different beam coverage areas or enters the registration area, it reports its own position to the system through position update, so that the system can track the dynamic changes of the user's position; when a call arrives, the system obtains the user's current location through paging Location information to enable the system to deliver calls to mobile users. [0003] In the satellite mobile communication syste...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the location management overhead of the multi-beam satellite mobile communication system is large, the invention discloses a typical mobile characteristic-oriented satellite communication system adaptive location management method. The satellite communication system consists of multi-beam satellites, ground gateway stations and ground Composed of mobile users, in the process of crossing different beam coverage areas, ground mobile users update their location according to the location management method and inform the gateway station of their own beam. The specific steps are:

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