US 12,342,422 B2
Using a plurality of SIM cards at an electronic device
Ming Pui Chong, Kowloon (HK); Wan Chun Leung, Kowloon (HK); Chan Neng Leong, Kowloon (HK); and Uzair Ahmed Chughtai, Kowloon (HK)
Assigned to Pismo Labs Technology Limited, Kowloon (HK)
Filed by Pismo Labs Technology Limited, Kowloon (HK)
Filed on Mar. 25, 2024, as Appl. No. 18/616,069.
Application 18/616,069 is a continuation of application No. 17/850,995, filed on Jun. 27, 2022, granted, now 11,943,838.
Application 17/850,995 is a continuation of application No. 17/035,645, filed on Sep. 28, 2020, granted, now 11,375,360, issued on Jun. 28, 2022.
Application 17/035,645 is a continuation of application No. 16/362,688, filed on Mar. 25, 2019, granted, now 10,791,457, issued on Sep. 29, 2020.
Application 16/362,688 is a continuation of application No. 15/492,006, filed on Apr. 20, 2017, granted, now 10,244,382, issued on Mar. 26, 2019.
Application 15/492,006 is a continuation in part of application No. 14/396,751, granted, now 9,635,541, issued on Apr. 25, 2017, previously published as PCT/IB2014/061582, filed on May 21, 2014.
Prior Publication US 2024/0236642 A1, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 8/18 (2009.01); G09G 3/3233 (2016.01); G09G 3/3291 (2016.01); H04B 1/3816 (2015.01); H04N 7/18 (2006.01); H04W 48/18 (2009.01); H04W 76/10 (2018.01); H04W 76/12 (2018.01); H04W 76/15 (2018.01); H04W 84/12 (2009.01)
CPC H04W 8/183 (2013.01) [G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); H04B 1/3816 (2013.01); H04N 7/181 (2013.01); H04W 48/18 (2013.01); H04W 76/10 (2018.02); H04W 76/12 (2018.02); H04W 76/15 (2018.02); G09G 2300/0861 (2013.01); G09G 2320/0626 (2013.01); H04W 84/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of using a plurality of subscriber identity module (SIM) cards via a plurality of Radio Frequency (RF) units at a wireless communication device, comprising:
(a) observing signal quality received from a plurality of base stations by using a first RF unit;
(b) determining, based in part on the signal quality, a list of base stations from the plurality of base stations:
(i) when the signal quality of a first base station is above a threshold, qualifying the first base station to be listed in the list of base stations; and
(ii) when the signal quality of a second base station is below the threshold, instructing a second RF unit to terminate a first wireless connection with the second base station;
(c) selecting, based in part on a selection criteria, a third base station from the list of base stations; and
(d) establishing a second wireless connection with the third base station by using an available RF unit;
wherein:
the plurality of SIM cards comprises at least one remote SIM card housed in a remote device;
each RF unit in the plurality of RF units is configured to use at least one SIM card in the plurality of SIM cards through a multiplexer via at least one SIM card interface; and
the first base station and the second base station are in the plurality of base stations.