公开(公告)号：EP4236589A2

公开(公告)日：2023-08-30

申请号：EP23180913.8

申请日：2020-11-02

Applicant: Apple Inc.

Inventor： ZHU, Yifan ,  MASPUTRA, Cahya A. ,  KISS, Krisztian ,  KAVURI, Lakshmi N. ,  NIMMALA, Srinivasan ,  LOVLEKAR, Srirang A. ,  KUMAR, Utkarsh ,  VENKATARAMAN, Vijay

IPC: H04W76/16

Abstract: A user equipment (UE) may be configured to reattempt to establish a multiple access (MA) protocol data unit (PDU) session when the UE moves to a new registration area. The UE transmits a request for a MA PDU session to the network, receives a message from the network indicating the request has been rejected, wherein the message further includes a status indication for reattempt requests to establish the MA PDU session, determines, when the UE moves into a new registration area of a PLMN, whether reattempt requests are allowed based on, at least, the status indication and transmits, when reattempt requests are allowed, a further request to establish the MA PDU session.

公开(公告)号：EP4233429A1

公开(公告)日：2023-08-30

申请号：EP20958223.8

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： PALLE VENKATA, Naveen Kumar R ,  XU, Fangli ,  HU, Haijing ,  KAVURI, Lakshmi N. ,  DHANAPAL, Muthukumaran ,  ZHAO, Pengkai ,  VANGALA, Sarma V. ,  ELANGOVAN, Thanigaivelu ,  LOU, Wenping ,  CHEN, Yuquin ,  WU, Zhibin

IPC: H04W72/04

公开(公告)号：EP4138431A1

公开(公告)日：2023-02-22

申请号：EP22201308.8

申请日：2020-10-29

Applicant: Apple Inc.

Inventor： NIMMALA, Srinivasan ,  RAVIKUMAR, Kavya B. ,  KISS, Krisztian ,  KAVURI, Lakshmi N. ,  KUMAR, Utkarsh ,  VENKATARAMAN, Vijay ,  ZHU, Yifan ,  PRABHAKAR, Alosious Pradeep ,  SADIQUE, Mohammed

IPC: H04W8/20 ,  H04W60/00 ,  H04W76/22

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.

公开(公告)号：EP4094545A1

公开(公告)日：2022-11-30

申请号：EP21765470.6

申请日：2021-03-02

Applicant: Apple Inc.

Inventor： CHAUDHARY, Madhusudan ,  MATHIAS, Arun G. ,  AMBATI, Rajesh ,  SINGH, Ajay ,  TRAVOSTINO, Franco ,  DHANAPAL, Muthukumaran ,  KAVURI, Lakshmi N. ,  SINGH, Ajoy K. ,  ELANGOVAN, Thanigaivelu ,  PEFKIANAKIS, Ioannis ,  MALLIKARJUNAN, Raghuveer ,  FAHEEM, Faraz ,  HALL, Geoffrey R. ,  CHUTTANI, Harshit ,  MALTHANKAR, Rohan C. ,  VASHI, Prashant H. ,  MAHMOUD, Hisham A. ,  BERGER, Henri S ,  BHOJKUMAR, Divyaprakash P.

IPC: H04W88/06 ,  H04W4/50 ,  H04W24/02 ,  H04W24/08 ,  H04W28/02

公开(公告)号：EP3817503A1

公开(公告)日：2021-05-05

申请号：EP20205173.6

申请日：2020-11-02

Applicant: Apple Inc.

Inventor： ZHU, Yifan ,  MASPUTRA, Cahya A. ,  KISS, Krisztian ,  KAVURI, Lakshmi N. ,  NIMMALA, Srinivasan ,  LOVLEKAR, Srirang A. ,  KUMAR, Utkarsh ,  VENKATARAMAN, Vijay

IPC: H04W76/18 ,  H04W76/16

Abstract: A user equipment (UE) may be configured to reattempt to establish a multiple access (MA) protocol data unit (PDU) session when the UE moves to a new registration area. The UE transmits a request for a MA PDU session to the network, receives a message from the network indicating the request has been rejected, wherein the message further includes a status indication for reattempt requests to establish the MA PDU session, determines, when the UE moves into a new registration area of a PLMN, whether reattempt requests are allowed based on, at least, the status indication and transmits, when reattempt requests are allowed, a further request to establish the MA PDU session.

公开(公告)号：EP3800935A1

公开(公告)日：2021-04-07

申请号：EP20199541.2

申请日：2020-10-01

Applicant: Apple Inc.

Inventor： ZHU, Yifan ,  VENKATARAMAN, Vijay ,  NAGARAJAN, Viswanath ,  BAEK, Sang Ho ,  KAVURI, Lakshmi N. ,  KUMAR, Utkarsh ,  KISS, Krisztian ,  BABU, Shivani Suresh ,  NIMMALA, Srinivasan

IPC: H04W36/00 ,  H04W84/12

Abstract: Techniques are disclosed relating to handover of WLAN voice calls to one or more cellular networks. In some embodiments, a device is configured to perform voice communications over one or more wireless local area networks, communicate with a first network using a first cellular radio access technology (RAT), and communicate with a second network using a second cellular RAT. The device may store, based on communications via the first network, information indicating that the first network does not support voice communications for the apparatus. The device may handover a voice call from a wireless local network directly to the second cellular RAT, based on the stored information and without handover of the voice call to the first cellular RAT, based on call conditions on the wireless local area network.