US 11,950,321 B2
Methods and systems of using remote subscriber identification modules at a device
Uzair Ahmed Chughtai, Kowloon (HK); Man Kit Kwan, New Territories (HK); and Yu Yeung, Kowloon (HK)
Assigned to Pismo Labs Technology Limited, Kowloon (HK)
Filed by Pismo Labs Technology Limited, Kowloon (HK)
Filed on Aug. 31, 2022, as Appl. No. 17/900,068.
Application 17/900,068 is a continuation in part of application No. 17/039,638, filed on Sep. 30, 2020, granted, now 11,438,758.
Application 17/039,638 is a continuation of application No. 16/034,740, filed on Jul. 13, 2018, granted, now 10,841,788, issued on Nov. 17, 2020.
Application 16/034,740 is a continuation of application No. 16/069,886, granted, now 11,212,664, issued on Dec. 28, 2021, previously published as PCT/IB2018/053983, filed on Jun. 4, 2018.
Prior Publication US 2023/0007468 A1, Jan. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 8/18 (2009.01); H04L 9/40 (2022.01); H04L 12/14 (2006.01); H04L 12/46 (2006.01); H04W 8/20 (2009.01); H04W 12/06 (2021.01); H04W 88/06 (2009.01)
CPC H04W 8/183 (2013.01) [H04L 12/1403 (2013.01); H04L 12/1464 (2013.01); H04L 12/4633 (2013.01); H04L 63/0853 (2013.01); H04W 8/205 (2013.01); H04W 12/06 (2013.01); H04W 88/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of responding to a subscriber identity module (SIM) card information request sent from a wireless communication device at a SIM card directory server, comprising:
(a) retrieving a status of a plurality of SIM cards from a plurality of SIM banks;
(b) maintaining a database with the status of the plurality of SIM cards;
(c) receiving the SIM card information request from the wireless communication device;
when the SIM card information request comprises a request of a SIM card selection:
(i) selecting a SIM card in the plurality of SIM cards and a SIM bank in the plurality of SIM banks; wherein the SIM card is in the SIM bank; and
(ii) embedding an identity of the SIM card and information to reach the SIM bank into a reply; and
when the SIM card information request comprises an authentication request of the SIM card selected:
(i) retrieving an authentication reply from the SIM card selected in the plurality of SIM cards; and
(ii) embedding the authentication reply into the reply; and
(d) after the SIM card information request is received, sending, based on the SIM card information request and the database, the reply to the wireless communication device.