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.:
Date of Patent:
Mar. 24, 2026
Filed:
Apr. 25, 2022
Interdigital Patent Holdings, Inc., Wilmington, DE (US);
Samir Ferdi, Kirkland, CA;
Behrouz Aghili, Commack, NY (US);
Guanzhou Wang, Brossard, CA;
Saad Ahmad, Montreal, CA;
InterDigital Patent Holdings, Inc., Wilmington, DE (US);
Abstract
Methods, apparatus, and systems are disclosed. A method, implemented by a Wireless Transmit/Receive Unit (WTRU) may use a first Public Land Mobile Network (PLMN) not affected by a disaster condition and a second PLMN affected by a disaster condition. The method may include: receiving from a CAG cell of the first PLMN, broadcast information indicating: (1) that the CAG cell supports disaster inbound roaming (DIR) of WTRUs associated with the second PLMN and (2) that the CAG Cell accepts CAG-supporting disaster inbound roamers; selecting the CAG cell of the first PLMN based on the broadcasted information; and sending a Registration Request message including information indicating a DIR indication and an identifier of the second PLMN. The method may further include receiving new CAG information associated with the first PLMN; and initiating a cell (re)selection procedure using the new CAG information associated with the first PLMN.