The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2013
Filed:
Sep. 27, 2011
Hong Kim, Seoul, KR;
Yi Ha Yoon, Suwon-si, KR;
Hong Kim, Seoul, KR;
Yi Ha Yoon, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A mobile communication device including Subscriber Identification Module (SIM) cards, and various methods for searching for a Public Land Mobile Network (PLMN) for each SIM card, are provided. In one method, the device separately starts Home PLMN (HPLMN) timers according to corresponding HPLMN timer values stored respectively in the SIM cards, performs a PLMN search for one of the SIM cards at an expiry of a corresponding one of the HPLMN timers, and updates a PLMN list with one or more PLMNs found during the PLMN search. The device then determines, for all of the SIM cards, whether the PLMN list contains any PLMN with a higher priority than a currently registered PLMN. Also, the device performs, for any SIM card of the SIM cards in which there is any PLMN with the higher priority than the currently registered PLMN, a location registration in the PLMN with the higher priority.