US 12,445,924 B2
Antenna gain-based handover procedure for NTN
Mads Lauridsen, Aalborg (DK); Jeroen Wigard, Aalborg (DK); and Enric Martinez, Aalborg (DK)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Filed by Nokia Technologies Oy, Espoo (FI)
Filed on Oct. 21, 2024, as Appl. No. 18/921,681.
Application 18/921,681 is a continuation of application No. PCT/EP2022/060988, filed on Apr. 26, 2022.
Prior Publication US 2025/0056354 A1, Feb. 13, 2025
Int. Cl. H04W 4/00 (2018.01); H04W 36/08 (2009.01); H04W 36/32 (2009.01)
CPC H04W 36/083 (2023.05) [H04W 36/322 (2023.05)] 16 Claims
OG exemplary drawing
 
9. A method comprising:
receiving, from a first cell of a satellite, information allowing to determine a coverage boundary between the first cell of the satellite and a second cell of the satellite, the information comprising:
one or more locations of points on the coverage boundary at a time,
the time,
ephemeris data of the satellite, and
information on a movement of the coverage boundary;
determining the coverage boundary based on the received information, the coverage boundary being within a coverage overlap between the first and second cells of the satellite and being different from cell boundaries of the first and second cells of the satellite;
checking whether a terminal is on the side of the second cell of the coverage boundary and the terminal is being served by the first cell;
if the terminal is on the side of the second cell of the coverage boundary and being served by the first cell, performing:
initiating a handover of the terminal from the first cell to the second cell; and
triggering the terminal to execute a conditional handover from the first cell to the second cell if the terminal is configured for the conditional handover,
wherein the handover or the conditional handover is triggered based on a result of the checking indicating that the terminal is on the side of the second cell of the coverage boundary and the terminal is being served by the first cell.