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:
May. 07, 2024
Filed:
May. 19, 2021
Apple Inc., Cupertino, CA (US);
Vijay Venkataraman, Cupertino, CA (US);
Alosious Pradeep Prabhakar, Singapore, SG;
Krisztian Kiss, Cupertino, CA (US);
Mohammed Sadique, Sydney, AU;
Nirlesh Koshta, Karnataka, IN;
Rohit R. Matolia, Karnataka, IN;
Sirisha Madduri, Cupertino, CA (US);
Sridhar Prakasam, Cupertino, CA (US);
Srinivasan Nimmala, Cupertino, CA (US);
Xiangpeng Jing, Cupertino, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
Emergency services support is indicated to roaming devices in a wireless network. A user equipment (UE) may receive a message from the wireless network indicating at least one public land mobile network (PLMN) that provides emergency services support for devices in limited service. The UE may store, in a non-volatile memory (NVM), an identifier of the at least one PLMN in a whitelist of limited service emergency services support. In response to a trigger in a roaming limited service condition of the UE, the UE may establish an emergency session with a selected PLMN based on the whitelist of limited service emergency services support.