The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2022
Filed:
Oct. 30, 2020
Apple Inc., Cupertino, CA (US);
Srinivasan Nimmala, San Jose, CA (US);
Kavya B. Ravikumar, San Diego, CA (US);
Krisztian Kiss, Hayward, CA (US);
Lakshmi N. Kavuri, San Jose, CA (US);
Utkarsh Kumar, Fremont, CA (US);
Vijay Venkataraman, San Jose, CA (US);
Yifan Zhu, San Jose, CA (US);
Alosious Pradeep Prabhakar, Singapore, SG;
Mohammed Sadique, Parramatta, AU;
Abstract
Apparatus and methods to support parallel access to services of multiple subscriber identity modules (SIMs) and/or electronic SIMs (eSIMs) by a wireless device are disclosed. The wireless device is a single-radio wireless device that includes wireless circuitry that supports an active voice or video connection via a single radio access network of a cellular wireless network at a time. To send or receive data for a second SIM/eSIM, when an active voice or video connection for a first SIM/eSIM uses the wireless circuitry, the single-radio wireless device can i) establish parallel, linked protocol data unit (PDU) sessions for different SIMs, ii) multiplex traffic for different SIMs over a common radio connection with SIM information embedded in protocol headers for routing by network equipment, and/or iii) use an additional dedicated bearer using a first, active SIM for each data network name (DNN) over which to route for a second, suspended SIM.