公开(公告)号：US20230353382A1

公开(公告)日：2023-11-02

申请号：US17733700

申请日：2022-04-29

Applicant: NXP B.V.

Inventor： Jan Grießbach ,  Ahmad Al Houry ,  Markus Hinkelmann ,  Nicolas Harmen Lehment

IPC: H04L9/32

CPC classification number: H04L9/3247 ,  H04L9/3297 ,  H04L9/3263 ,  H04L9/3215

Abstract: Various implementations relate to controller in a system, including: a device connected to a network; and a secure sub-system connected to the device via a first wired connection, the secure sub-system configured to: establish a trusted channel with a user certificate authority (CA) via a provisioning device; receive application parameters from user CA; provision a timestamp or secure time server information based upon the timestamp or secure time server information received from the user CA; create a device identity for the device; and terminate the trusted channel after provisioning the timestamp or secure time server information and creating the device identity for the device.

公开(公告)号：US20240031913A1

公开(公告)日：2024-01-25

申请号：US18340493

申请日：2023-06-23

Applicant: NXP B.V.

Inventor： Jan Grießbach ,  Till Steffen Witt ,  Javier Velasquez Gomez ,  Nicolas Harmen Lehment

IPC: H04W48/04 ,  H04W48/18

CPC classification number: H04W48/04 ,  H04W48/18 ,  H04W88/06

Abstract: The disclosure relates to switching SIMs in a mobile telecommunications device based on geographic location. Example embodiments disclosed include a method of operating a mobile telecommunications device having a first SIM and a second SIM, the method comprising: identifying a geographic location of the device; operating the device using the first SIM to connect to a first network if the device is within a first geographic location; and operating the device using the second SIM to connect to a second network if the device is within a second geographic location and if a received signal strength indicator, RSSI, of the second network is greater than a predefined threshold value.