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:
Feb. 02, 2021

Filed:

May. 31, 2019
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Chiu-Jen Lin, Hsinchu, TW;

Ching-Liang Chang, Hsinchu, TW;

Wei-Lun Liu, Hsinchu, TW;

Assignee:

MEDIATEK INC., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/32 (2009.01); H04W 36/14 (2009.01); H04W 72/02 (2009.01); H04W 76/15 (2018.01); H04W 36/16 (2009.01); H04W 36/36 (2009.01); H04W 72/12 (2009.01);
U.S. Cl.
CPC ...
H04W 36/32 (2013.01); H04W 36/14 (2013.01); H04W 36/165 (2013.01); H04W 36/36 (2013.01); H04W 72/02 (2013.01); H04W 72/1215 (2013.01); H04W 76/15 (2018.02);
Abstract

The mobile communication device supports a plurality of RATs and includes a first wireless transceiver, a second wireless transceiver, and a controller. The first wireless transceiver performs wireless transmission and reception to and from a first cellular network utilizing a first RAT. The second wireless transceiver obtains a non-cellular signal indicator. The controller determines whether the first RAT is a predetermined one of the plurality of RATs when the mobile communication device camps on the first cellular network, and if not, predicts whether there is a second cellular network available, which utilizes the predetermined RAT, based on the non-cellular signal indicator. In response to predicting that the second cellular network is available based on the non-cellular signal indicator, the controller further enables the mobile communication device to camp on the second cellular network via the first wireless transceiver.


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