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:
Aug. 22, 2023

Filed:

Sep. 03, 2021
Applicant:

Mediatek Inc., Hsinchu, TW;

Inventors:

Guan-Jie Huang, Hsinchu, TW;

Tzu-Wen Chang, Hsinchu, TW;

Kuan-Wei Chen, Hsinchu, TW;

Yu-Hua Huang, Hsinchu, TW;

Teng Ma, Shanghai, CN;

Sheng-Kai Chang, Hsinchu, TW;

Assignee:

MEDIATEK INC., Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01); H04W 8/08 (2009.01); H04W 76/19 (2018.01); H04W 76/27 (2018.01); H04W 68/00 (2009.01); H04W 36/14 (2009.01); H04W 36/24 (2009.01);
U.S. Cl.
CPC ...
H04W 36/00837 (2018.08); H04W 8/08 (2013.01); H04W 36/0079 (2018.08); H04W 36/14 (2013.01); H04W 36/24 (2013.01); H04W 68/005 (2013.01); H04W 76/19 (2018.02); H04W 76/27 (2018.02);
Abstract

A communications apparatus and associated method communicating with at least one cellular network includes a radio transceiver and a processor. The communications apparatus includes a radio transceiver, capable of transmitting or receiving wireless radio frequency signals to or from a cellular network; and a processor. The processor is configured to: receive an incoming call request message that will trigger a Circuit Switch Fall Back (CSFB) procedure or a Evolved Packet System Fall Back (EPS FB) procedure from the cellular network via the radio transceiver, query a user to accept or reject the incoming call request before triggering the CSFB procedure or the EPS FB procedure, and determine whether to trigger the CSFB procedure or the EPS FB procedure based on a response to the query from the user.


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