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:
Jan. 21, 2025

Filed:

Jun. 27, 2023
Applicant:

T-mobile Usa, Inc., Bellevue, WA (US);

Inventors:

Lin Zhang, Overland Park, KS (US);

Syed Toaha Ahmad, Renton, WA (US);

Jaime Enrique Rodriguez Villate, Seattle, WA (US);

Hsin Fu Henry Chiang, Bellevue, WA (US);

James J. Bae, Chantilly, VA (US);

Adnan Rahat, Renton, WA (US);

Hang Hoi Yau, Sammamish, WA (US);

Assignee:

T-Mobile USA, Inc., Bellevue, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 28/02 (2009.01); H04W 28/12 (2009.01); H04W 76/18 (2018.01);
U.S. Cl.
CPC ...
H04W 28/0289 (2013.01); H04W 28/12 (2013.01); H04W 76/18 (2018.02);
Abstract

A solution for handling network congestion includes: attempting, by a user equipment (UE), to initiate a data session (e.g., a voice over WiFi (VoWiFi) call) over a packet data network (PDN); receiving, by the UE, a notification of network congestion; based on at least a fast retry timer and a fast retry counter, attempting, by the UE, fast retries up to a maximum number of fast retries at a fast retry time interval; and based on at least none of the initial attempt and the fast retries initiating the data session, attempting, by the UE, slow retries at a slow retry time interval until the data session is initiated or a trigger condition halts the slow retries. In some examples, the UE receives a retry parameter set from the network including the maximum number of fast retries, the fast retry time interval, and the slow retry time interval.


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