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. 03, 2026

Filed:

Jan. 19, 2024
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Icaro Leonardo J. Da Silva, Solna, SE;

Magnus Stattin, Upplands Väsby, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 76/19 (2018.01); H04W 12/106 (2021.01); H04W 12/122 (2021.01);
U.S. Cl.
CPC ...
H04W 76/19 (2018.02); H04W 12/106 (2021.01); H04W 12/122 (2021.01);
Abstract

Embodiments described herein relate to methods and apparatuses for performing a re-establishment procedure. A method in a user equipment comprises: receiving a re-establishment message; upon reception of the re-establishment message, monitoring for an indication of an integrity check failure received from lower layers, wherein the indication relates to a first message or a second message received by the UE after transmitting a re-establishment request; responsive to the indication of the integrity check failure, performing actions upon going into an RRC_IDLE mode of operation; indicating a connection failure to upper layers; and based on the indication, upper layers triggering a recovery procedure.


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