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.

Date of Patent:
Jun. 30, 2020

Filed:

May. 06, 2016
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, Guangdong, CN;

Inventors:

Hsiu Yu, Shenzhen, CN;

Chengsheng Huang, Taipei, TW;

Haw-Wei Shu, Shanghai, CN;

Yifang Chang, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 36/32 (2009.01); H04W 48/18 (2009.01); H04W 8/18 (2009.01); H04W 48/16 (2009.01); H04W 84/04 (2009.01);
U.S. Cl.
CPC ...
H04W 36/32 (2013.01); H04W 8/183 (2013.01); H04W 48/16 (2013.01); H04W 48/18 (2013.01); H04W 84/042 (2013.01);
Abstract

Embodiments of this application disclose a network search method and a terminal device. The network search method is applied to a terminal device, and a subscriber identity module SIM card is installed in the terminal device. The method part in the embodiments of this application includes: when the terminal device camps on a visited public land mobile network VPLMN, determining an MCC home area corresponding to the SIM card; determining whether the terminal device has entered the MCC home area or is to enter the MCC home area; and triggering a network search if the terminal device has entered the MCC home area or is to enter the MCC home area. The embodiments of this application also disclose the terminal device, so as to increase a speed of going back, by the terminal device, from the VPLMN network to camp on an HPLMN network.


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