Invention Grant
- Patent Title: Systems and methods to indicate emergency services support for roaming users
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Application No.: US17593531Application Date: 2021-05-19
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Publication No.: US11979939B2Publication Date: 2024-05-07
- Inventor: Vijay Venkataraman , Alosious Pradeep Prabhakar , Krisztian Kiss , Mohammed Sadique , Nirlesh Koshta , Rohit R. Matolia , Sirisha Madduri , Sridhar Prakasam , Srinivasan Nimmala , Xiangpeng Jing
- Applicant: APPLE INC.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Dorsey & Whitney LLP
- Priority: IN 2041021589 2020.05.22
- International Application: PCT/US2021/033132 2021.05.19
- International Announcement: WO2021/236752A 2021.11.25
- Date entered country: 2021-11-19
- Main IPC: H04W8/12
- IPC: H04W8/12 ; H04W4/90 ; H04W8/04 ; H04W76/50 ; H04W84/04

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.
Public/Granted literature
- US20220312182A1 SYSTEMS AND METHODS TO INDICATE EMERGENCY SERVICES SUPPORT FOR ROAMING USERS Public/Granted day:2022-09-29
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