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:
Apr. 21, 2026

Filed:

Jan. 14, 2022
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Ralf Keller, Würselen, DE;

Peter Hedman, Helsingborg, SE;

Angelo Centonza, Granada, ES;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04W 8/04 (2009.01); H04W 8/26 (2009.01); H04W 12/06 (2021.01); H04W 36/00 (2009.01); H04W 60/00 (2009.01); H04W 60/04 (2009.01); H04W 36/08 (2009.01);
U.S. Cl.
CPC ...
H04W 60/00 (2013.01); H04W 36/13 (2023.05); H04W 36/08 (2013.01);
Abstract

Redirection and retry of registration is disclosed herein. In some embodiments, a User Equipment (UE) of a Next Generation Radio Access Network (NG-RAN) is adapted to transmit a Non-Access Stratum (NAS) registration request comprising one or more Single-Network Slice Selection Assistance Information (S-NSSAI), indicated as one or more requested S-NSSAI. The UE is further adapted to receive, in an Access Stratum (AS) protocol, an AS-level registration reattempt indication to instruct the UE to reattempt the NAS registration request in a target cell. The UE is also adapted to reattempt the NAS registration in the target cell, responsive to receiving the AS-level registration reattempt indication.


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