Technique and apparatus for managing mobility of terminal in satellite communication system

A satellite communication cell management apparatus for managing satellite communication cells of at least one satellite, the satellite communication cell management apparatus comprising:

• a transceiver;
• and
• at least one processor coupled with the transceiver and configured to:
• determine a first satellite communication cell corresponding to a ground location of a user equipment (UE) based on information on a satellite communication cell being last-connected with the UE,
• transmit a first paging request message for the first satellite communication cell, wherein the first paging request message is associated with a paging message for the UE, and
• if paging associated with the first satellite communication cell fails, transmit a second paging request message for a second satellite communication cell,
• wherein the second satellite communication cell is included in a registration area (RA) including the first satellite communication cell, and
• wherein the at least one processor is further configured to:
• connect a plurality of satellite communication cells in a management area of a base station (BS) center to a plurality of BSs managed by the BS center, and
• if the satellite communication cell exits from the management area of the BS center and the first satellite communication cell enters the management area of the BS center, according to a relative movement of at least one satellite with respect to a ground, release a connection between the satellite communication cell and a BS, among the BSs, and connect the first satellite communication cell to the BS.