公开(公告)号：US11979939B2

公开(公告)日：2024-05-07

申请号：US17593531

申请日：2021-05-19

Applicant: APPLE INC.

Inventor： Vijay Venkataraman ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Mohammed Sadique ,  Nirlesh Koshta ,  Rohit R. Matolia ,  Sirisha Madduri ,  Sridhar Prakasam ,  Srinivasan Nimmala ,  Xiangpeng Jing

IPC: H04W8/12 ,  H04W4/90 ,  H04W8/04 ,  H04W76/50 ,  H04W84/04

CPC classification number: H04W8/12 ,  H04W4/90 ,  H04W8/04 ,  H04W76/50 ,  H04W84/042

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.

公开(公告)号：US20220312182A1

公开(公告)日：2022-09-29

申请号：US17593531

申请日：2021-05-19

Applicant: APPLE INC.

Inventor： Vijay Venkataraman ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Mohammed Sadique ,  Nirlesh Koshta ,  Rohit R. Matolia ,  Sirisha Madduri ,  Sridhar Prakasam ,  Srinivasan Nimmala ,  Xiangpeng Jing

IPC: H04W8/12 ,  H04W4/90 ,  H04W76/50 ,  H04W8/04

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.