US 11,856,509 B2
Electronic device and method for searching for radio access technology (RAT) by electronic device supporting plurality of communication networks
Yongbeom Kwon, Suwon-si (KR); Sungmi Kim, Suwon-si (KR); and Hyunchul Lee, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 24, 2021, as Appl. No. 17/210,990.
Claims priority of application No. 10-2020-0039693 (KR), filed on Apr. 1, 2020.
Prior Publication US 2021/0314859 A1, Oct. 7, 2021
Int. Cl. H04W 48/18 (2009.01); H04W 8/18 (2009.01)
CPC H04W 48/18 (2013.01) [H04W 8/183 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electronic device comprising:
at least one antenna module including at least one antenna;
a universal integrated circuit card (UICC) configured to store at least one piece of subscriber identity information; and
at least one processor electrically connected to the UICC,
wherein the at least one processor is configured to:
receive a request to initialize a subscriber identity module (SIM) stored in the UICC;
in response to receiving the request to initialize the subscriber identity module, identify whether a field exists in the UICC, wherein the field stores information about a list of wireless communication network services to which a user subscribes from among a plurality of wireless communication networks available to the electronic device; and
in a case that the field exists, identify at least one wireless communication network service to which the user subscribes among the plurality of wireless communication networks available to the electronic device based on the information about the list, and control the electronic device to perform wireless communication network connection through the at least one antenna module based on the identified at least one wireless communication network service, without performing wireless communication network connection through one or more wireless communication network services not included in the list and available to the electronic device; and
in a case that the field does not exist, control the electronic device to perform wireless communication network connection through the at least one antenna module to the plurality of wireless communication networks available to the electronic device based on a preset priority for the plurality of wireless communication networks.