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:
Apr. 28, 2015
Filed:
Jul. 21, 2011
Xiang Sun, Shanghai, CN;
Xianliang Chen, Shanghai, CN;
Yi Jin, Shanghai, CN;
Spreadtrum Communications (Shanghai) Co., Ltd., Shanghai, CN;
Abstract
Methods for determination and residency of service provider of a multi-card mobile terminal are provided. A method for the residency of the multi-card mobile terminal comprises: when some or all cards belong to the same service provider, said cards will reside in the same cell. Some embodiments of the present invention acquire IMSI corresponding to each card and extract HPLMN or EHPLMN from the IMSI to identify from card storage information rapidly and accurately cards in the mobile terminal that belong to the same service provider, and make those cards reside in the same cell during starting-up stage, cell reselection, or network recovery under the circumstance of a plurality of cards belonging to the same service provider, thus reducing the realization difficulties in measurement, idle standby, synchronous maintenance, etc., stabilizing the system and optimizing the performance of mobile terminal.