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:
Apr. 22, 2014

Filed:

Sep. 23, 2011
Applicant:

Tsung-yo Cheng, Taipei Hsien, TW;

Inventor:

Tsung-Yo Cheng, Taipei Hsien, TW;

Assignee:

Acer Incorporated, Taipei Hsien, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 24/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a first service network. The controller module transmits a location update request message to a first cellular station of the first service network via the wireless module, and receives a location update rejection message, which comprises a rejection cause indicating a network related failure, from the first cellular station via the wireless module. Also, the controller module transmits another location update request message to a second cellular station of the first service network via the wireless module in response to the location update rejection message. Particularly, the first cellular station and the second cellular station belong to a first location area and a second location area, respectively.


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