US 11,778,472 B2
Backup cellular connectivity for essential services
Gahima S. Mbonye, San Jose, CA (US); Eduardo de Almeida Abrantes, San Francisco, CA (US); Krishna Myneni, Sunnyvale, CA (US); Lakshmi N. Kavuri, Cupertino, CA (US); Murtaza A. Shikari, Mountain View, CA (US); Raj S. Chaugule, Santa Clara, CA (US); Sanjeevi Balasubramanian, San Jose, CA (US); Shiva Krishna Narra, San Jose, CA (US); Srinivasan Nimmala, San Jose, CA (US); Sriram Subramanian, Santa Clara, CA (US); and Vikram B Yerrabommanahalli, Sunnyvale, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on May 20, 2022, as Appl. No. 17/749,448.
Application 17/749,448 is a division of application No. 16/922,813, filed on Jul. 7, 2020, granted, now 11,356,852.
Claims priority of provisional application 62/881,439, filed on Aug. 1, 2019.
Prior Publication US 2022/0279353 A1, Sep. 1, 2022
Int. Cl. H04W 12/126 (2021.01); H04W 12/06 (2021.01); H04W 76/18 (2018.01); G08B 13/22 (2006.01); H04W 4/029 (2018.01); H04W 12/48 (2021.01); H04W 12/71 (2021.01)
CPC H04W 12/126 (2021.01) [G08B 13/22 (2013.01); H04W 4/029 (2018.02); H04W 12/06 (2013.01); H04W 12/48 (2021.01); H04W 12/71 (2021.01); H04W 76/18 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A wireless user equipment device (UE), comprising:
a radio; and
a processing element coupled to the radio, wherein the UE is configured to:
receive user input to alter an operational state of the UE;
initiate an authorization process at least in part in response to receiving the user input to alter the operational state of the UE;
in response to determining that the authorization process has failed, implement a security enhancement for the UE, wherein the security enhancement comprises entering a pseudo-active mode, wherein, while in the pseudo-active mode, the UE is configured to:
power down a display of the UE;
maintain an active connection with a network; and
periodically transmit location information of the UE to the network;
determine that a remaining battery level of the UE has fallen below a predetermined threshold while the UE is in pseudo-active mode; and
at least in part in response to determining that the remaining battery level of the UE has fallen below the predetermined threshold while the UE is in pseudo-active mode, enter a pseudo-power off mode, wherein the UE is configured to periodically power off the radio of the UE while in the pseudo-power off mode.