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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.

Patent No.:

US 12593371 B1

PDFFull Text
Date of Patent:
Mar. 31, 2026

Filed:

Nov. 03, 2023

Network node apparatus and methods for achieving end-to-end reliability and improving fault tolerance in wireless systems

Applicant:

Interdigital Patent Holdings, Inc., Wilmington, DE (US);

Inventors:

Achref Methenni, Montreal, CA;

Michael Starsinic, Newtown, PA (US);

Rocco Di Girolamo, Laval, CA;

Ulises Olvera-Hernandez, Saint-Lazare, CA;

Magurawalage Chathura Madhusanka Sarathchandra, London, GB;

Saad Ahmad, Montreal, CA;

Renan Krishna, Brighton, GB;

Assignee:

InterDigital Patent Holdings, Inc., Wilmington, DE (US);

Attorney:

VOLPE KOENIG

Primary Examiner:

Kenny S Lin

Int. Cl.
CPC ...
H04W 76/20 (2018.01);
U.S. Cl.
CPC ...
H04W 76/20 (2018.02);
Abstract

A first policy control function (PCF) in a first network node may receive an indication from a session management function (SMF) that a protocol data unit (PDU) session is an alternative PDU session, and an indication of whether the PDU session is in a drop state. The first PCF may send a message with an indication to a second PCF in a second network node to indicate that the network node is serving a PDU session that is an alternative PDU session. In an example, the message with an indication to the second PCF may also identify the PDU session. The first PCF may receive a message from the second PCF with an indication that a second PDU session has experienced a fault or degraded performance. Further, the first PCF may send a message to the SMF to change the PDU session to a no-drop state.

Find Patent Forward Citations

Methenni, Achref. (2026). Network node apparatus and methods for achieving end-to-end reliability and improving fault tolerance in wireless systems (U.S. Patent No. 12593371). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12593371

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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