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. 11, 2019

Filed:

Sep. 13, 2017
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Daniel B. Pollack, San Francisco, CA (US);

Yu Xing, Cupertino, CA (US);

Venkateswara Rao Manepalli, Sunnyvale, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04W 52/02 (2009.01); H04W 76/25 (2018.01); H04W 76/38 (2018.01);
U.S. Cl.
CPC ...
H04W 76/25 (2018.02); H04W 52/0254 (2013.01); H04W 52/0261 (2013.01); H04W 76/38 (2018.02);
Abstract

Methods and user equipment devices (UEs) are disclosed for performing keep alive interval fallback. During an active connection with a remote network, a UE may operate in a steady state configuration wherein keep alive message are periodically sent to the remote network. The UE may determine that a keep alive message has failed to receive an acknowledgement (ACK) response. Based on the determination that the keep alive message has failed, the UE may trigger keep alive interval fallback, wherein the UE sends keep alive messages at a shorter duration for a predetermined period of time.


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