US 12,292,523 B2
Systems, methods, and devices for optimized return to HPLMN
David Boettger, San Jose, CA (US); Jose A Castelo Vega, San Jose, CA (US); and Ozgur Ekici, Ottawa (CA)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 20, 2022, as Appl. No. 17/844,269.
Prior Publication US 2023/0408626 A1, Dec. 21, 2023
Int. Cl. H04W 8/02 (2009.01); G01S 5/00 (2006.01); H04W 64/00 (2009.01); H04W 84/04 (2009.01)
CPC G01S 5/0054 (2013.01) [H04W 8/02 (2013.01); H04W 64/00 (2013.01); H04W 84/042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a memory; and
one or more processors configured to, when executing instructions stored in the memory, cause the UE to:
determine a number of home public land mobile network (HPLMN) cells associated with a geographic location of the UE;
determine a number of HPLMN cell samples associated with the geographic location;
determine, based on the number of HPLMN cells and the number of HPLMN cell samples, an HPLMN search time;
perform, upon expiration of the HPLMN search time, a search for HPLMN cells; and
connect to an HPLMN cell when the HPLMN cell is detected.