Invention Grant
- Patent Title: Methods and apparatus to support access to services for multiple subscriber identity modules
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Application No.: US17086175Application Date: 2020-10-30
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Publication No.: US11357067B2Publication Date: 2022-06-07
- Inventor: Srinivasan Nimmala , Kavya B. Ravikumar , Krisztian Kiss , Lakshmi N. Kavuri , Utkarsh Kumar , Vijay Venkataraman , Yifan Zhu , Alosious Pradeep Prabhakar , Mohammed Sadique
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Dickinson Wright RLLP
- Main IPC: H04W60/00
- IPC: H04W60/00 ; H04W72/12 ; H04W76/15 ; H04W76/12 ; H04W76/11 ; H04W76/27 ; H04W4/24 ; H04W8/24 ; H04W68/00 ; H04W88/06

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.
Public/Granted literature
- US20210136849A1 METHODS AND APPARATUS TO SUPPORT ACCESS TO SERVICES FOR MULTIPLE SUBSCRIBER IDENTITY MODULES Public/Granted day:2021-05-06
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