公开(公告)号：US20180352425A1

公开(公告)日：2018-12-06

申请号：US15954345

申请日：2018-04-16

Applicant: Apple Inc.

Inventor： Chandiramohan VASUDEVAN ,  Rohan C. MALTHANKAR ,  Prashant H. VASHI ,  Viswanath NAGARAJAN ,  Vikram Bhaskara YERRABOMMANAHALLI ,  Rafael L. RIVERA-BARRETO ,  Samuel J. MILLER ,  Kannan JEYAKUMAR ,  Li LI

IPC: H04W8/24 ,  H04W4/50

CPC classification number: H04W8/24 ,  H04W4/50 ,  H04W8/205 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/20 ,  Y02D70/22 ,  Y02D70/26

Abstract: Techniques to manage updates for eSIMs of a secondary wireless device are disclosed. Responsive to a user input, expiration of a timer, receipt of a message from an associated primary wireless device, processing circuitry of the secondary wireless device commands an eUICC to update an eSIM. A secure data connection is established between the eUICC and a network provisioning server, either directly from the secondary wireless device to a cellular wireless network or relayed indirectly via the primary wireless device. The eUICC and the network provisioning server exchange messages in accordance with a BIP process to update the eSIM. The eUICC provides a status to the processing circuitry indicating success or failure for the eSIM update. Upon success, a portion of the secondary wireless device may be placed in a reduced power state. Upon failure, the eSIM update process may repeat up to a maximum number of retries.