Patent ID: 11917577
Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A paging method, applied to a core network node in a satellite Internet communication system, comprising:
acquiring a setting mode of a tracking area TA in the satellite Internet communication system;
determining, according to the setting mode, one or more base stations for paging a terminal; and
sending a paging message to the one or more base stations;
wherein the setting mode comprises one of the following modes:
dividing the satellite Internet communication system into one TA;
setting at least two fixed TAs; or
setting at least two non-fixed TAs,
wherein when the setting mode is dividing the satellite Internet communication system into one TA, and the terminal has positioning capability, the determining the one or more base stations for paging the terminal comprises:
acquiring positioning information and a moving track of a satellite when the terminal releases connection; and
determining the base station for currently paging the terminal according to the positioning information and the moving track of the satellite;
or,
when the setting mode is dividing the satellite Internet communication system into one TA and the terminal does not have positioning capability, the determining the one or more base stations for paging the terminal comprises:
acquiring a serving base station, a serving cell and time stamp information when the terminal releases connection;
determining a position of the terminal according to the serving base station, the serving cell and the time stamp information; and
determining the base station for currently paging the terminal according to the position of the terminal;
or,
when the setting mode is setting at least two fixed TAs, one fixed TAs comprises at least one ground cell when a ground cell corresponding to the beam of the base station belonging to a fast-moving medium or low orbit satellite is a fixed cell;
or,
when the setting mode is setting at least two fixed TAs and when a ground cell corresponding to a beam of the base station belonging to a fast-moving medium or low orbit satellites is a mobile cell, an updating manner of the fixed TAs is that: according to a position of a statically allocated fixed TA, a position and a beam coverage condition of the base station, when it is determined that a cell managed by the base station moves to an area of a next fixed TA, the base station reconfigures the fixed TA, and information of the reconfigured TA is broadcasted through system information updating.