US 12,408,099 B2
Connection change restriction in overlapping area of terrestrial network and non-terrestrial network
Tsunehiko Chiba, Tokyo (JP); and Kenichiro Aoyagi, Tokyo (JP)
Assigned to RAKUTEN MOBILE, INC., Tokyo (JP)
Appl. No. 17/797,103
Filed by RAKUTEN MOBILE, INC., Tokyo (JP)
PCT Filed Nov. 9, 2021, PCT No. PCT/JP2021/041153
§ 371(c)(1), (2) Date Aug. 2, 2022,
PCT Pub. No. WO2022/254741, PCT Pub. Date Dec. 8, 2022.
Claims priority of application No. 2021-093455 (JP), filed on Jun. 3, 2021; and application No. 2021-098488 (JP), filed on Jun. 14, 2021.
Prior Publication US 2024/0188022 A1, Jun. 6, 2024
Int. Cl. H04W 48/04 (2009.01); H04W 16/18 (2009.01); H04W 36/08 (2009.01); H04W 36/30 (2009.01); H04W 60/04 (2009.01); H04W 68/02 (2009.01); H04W 68/12 (2009.01); H04W 84/06 (2009.01)
CPC H04W 48/04 (2013.01) [H04W 16/18 (2013.01); H04W 36/083 (2023.05); H04W 36/305 (2018.08); H04W 60/04 (2013.01); H04W 68/02 (2013.01); H04W 68/12 (2013.01); H04W 84/06 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A communication control apparatus, comprising:
an overlapping area identification unit that identifies an overlapping area of a first location registration area including at least one terrestrial communication cell provided on the ground by a terrestrial base station installed on the ground and a second location registration area including at least one non-terrestrial communication cell provided on the ground by a flying non-terrestrial base station;
a connection detection unit that detects that a communication device in the overlapping area is connected to one base station of the terrestrial base station and the non-terrestrial base station;
a connection change restriction unit that restricts change of connection destination of the communication device from the one base station to another base station of the terrestrial base station and the non-terrestrial base station while the communication device is in the overlapping area;
a connection history information retention unit that retains connection history information to the one base station, when the connection destination of the communication device in the overlapping area is changed from the one base station to the another base station; and
an area change notification unit that generates an area change notification when the location registration area to which the communication device is connected is changed, and does not generate an area change notification when the connection destination of the communication device in the overlapping area is changed from the another base station to the one base station for which the connection history information is retained.