US 12,177,771 B2
Method for updating a terminal comprising a secure element
Ly Thanh Phan, La Ciotat (FR); Jean-François Gros, La Ciotat (FR); Jean-Yves Fine, La Ciotat (FR); and Vincent Dany, La Ciotat (FR)
Assigned to THALES DIS FRANCE SAS, Meudon (FR)
Appl. No. 17/619,313
Filed by THALES DIS FRANCE SAS, Meudon (FR)
PCT Filed May 12, 2020, PCT No. PCT/EP2020/063149
§ 371(c)(1), (2) Date Dec. 15, 2021,
PCT Pub. No. WO2020/254039, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 19305776 (EP), filed on Jun. 18, 2019.
Prior Publication US 2022/0248315 A1, Aug. 4, 2022
Int. Cl. H04W 48/18 (2009.01); G06N 3/047 (2023.01); H04W 8/12 (2009.01); H04W 24/08 (2009.01); H04W 84/04 (2009.01)
CPC H04W 48/18 (2013.01) [G06N 3/047 (2023.01); H04W 8/12 (2013.01); H04W 24/08 (2013.01); H04W 84/042 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A computer-implemented method for updating a terminal comprising a secure element, wherein a OTA (Over-the-Air) platform receives at least a location data reflecting a location of the terminal and a request for downloading a list of preferred networks in the terminal,
wherein the method comprises:
i) the OTA platform receives both a set of lists of preferred networks and a group of weighting factors (SP1, SP2, SP3), each list of the set having one weighting factor of said group attached to said each list,
ii) the OTA platform selects the list of preferred networks from the set by using a selection function (S) taking into account at least the location data, a random value, and the weighting factors attached to the set of lists, and
iii) by enciphering the selected list, the OTA platform generates an enciphered list of preferred networks and sends over the air the enciphered list to the terminal;
wherein each of said preferred networks is associated with its own target roaming quota usage, and wherein at least one weighting factor associated to a given list of the set is updated as a result of an optimization function (F) which aims at generating one weighting factor based on a target roaming quota usage associated to each preferred network of the given list.