公开(公告)号：US11528679B2

公开(公告)日：2022-12-13

申请号：US17164439

申请日：2021-02-01

Applicant: Apple Inc.

Inventor： Vijay Venkataraman ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Sang Ho Baek ,  Shivani Suresh Babu ,  Utkarsh Kumar ,  Viswanath Nagarajan ,  Yifan Zhu ,  Hariharan Sukumar

IPC: H04W60/06 ,  H04W76/34 ,  H04W88/06 ,  H04W36/00 ,  H04W8/26

Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for de-registration of the wireless device from a first access type over a second access type. Methods also include procedures for maintaining state machines associated with both access types as well as procedures to determine a connection for re-transmitting a de-registration request and to avoid collisions between procedures associated with the first and second access types. Further, methods include an information element configured to indicate which access type has been de-registered.

公开(公告)号：US11503527B2

公开(公告)日：2022-11-15

申请号：US17023173

申请日：2020-09-16

Applicant: Apple Inc.

Inventor： Yifan Zhu ,  Vijay Venkataraman ,  Viswanath Nagarajan ,  Sang Ho Baek ,  Lakshmi N. Kavuri ,  Utkarsh Kumar ,  Krisztian Kiss ,  Shivani Suresh Babu ,  Srinivasan Nimmala

IPC: H04W4/00 ,  H04W36/30 ,  H04B17/318 ,  H04L43/0829 ,  H04L65/1016 ,  H04L65/1073 ,  H04W36/14 ,  H04W84/04 ,  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.

公开(公告)号：US20220141920A1

公开(公告)日：2022-05-05

申请号：US17578083

申请日：2022-01-18

Applicant: Apple Inc.

Inventor： Lakshmi N. Kavuri ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Muthukumaran Dhanapal ,  Sang Ho Baek ,  Shivani Suresh Babu ,  Srinivasan Nimmala ,  Utkarsh Kumar ,  Vijay Venkataraman ,  Viswanath Nagarajan ,  Yifan Zhu

IPC: H04W88/06 ,  H04W76/25 ,  H04W76/27 ,  H04W8/18 ,  H04W8/24 ,  H04W60/00 ,  H04W68/00

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for enhancement of multi-SIM devices, such as UE 106. A network may increase paging retries for known MU-SIM devices, e.g., based on an indication of capabilities from a MU-SIM device. The indication may be via a NAS registration request, an RRC capability procedure, and/or an RRC UE assistance procedure. Additionally, a network may include an indication of a paging priority to the UE. The UE may then determine a response to the page based, at least in part, on the indicated priority. Further, the UE may indicate a tune-away to the network. The indication of the tune-away may include a cause and/or duration for the tune-away and may be provided at an RRC level or a network access stratum (NAS) level.

公开(公告)号：US10979939B2

公开(公告)日：2021-04-13

申请号：US16400571

申请日：2019-05-01

Applicant: Apple Inc.

Inventor： Krisztian Kiss ,  Lakshmi N. Kavuri ,  Srinivasan Nimmala ,  Utkarsh Kumar ,  Viswanath Nagarajan

IPC: H04W36/00 ,  H04W36/02 ,  H04W60/00 ,  H04W36/06 ,  H04W36/30

Abstract: An accessory device may dynamically determine to transition a cellular connection between mobile-initiated communication only (MICO) mode and non-MICO mode based on a variety of factors. The accessory device may be configured to communicate through a non-cellular network in addition to the cellular network. The accessory device may transition from MICO to non-MICO mode based on one or more of: loss of the non-cellular connection; location of the accessory device; a call, data, or SMS request failure over the non-cellular network; or other factors.

公开(公告)号：US20210105866A1

公开(公告)日：2021-04-08

申请号：US17024528

申请日：2020-09-17

Applicant: Apple Inc.

Inventor： Lakshmi N. Kavuri ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Muthukumaran Dhanapal ,  Sang Ho Baek ,  Shivani Suresh Babu ,  Srinivasan Nimmala ,  Utkarsh Kumar ,  Vijay Venkataraman ,  Viswanath Nagarajan ,  Yifan Zhu

IPC: H04W88/06 ,  H04W76/25 ,  H04W60/00 ,  H04W8/18 ,  H04W76/27 ,  H04W8/24 ,  H04W68/00 ,  H04W84/04

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for enhancement of multi-SIM devices, such as UE 106. A network may increase paging retries for known MU-SIM devices, e.g., based on an indication of capabilities from a MU-SIM device. The indication may be via a NAS registration request, an RRC capability procedure, and/or an RRC UE assistance procedure. Additionally, a network may include an indication of a paging priority to the UE. The UE may then determine a response to the page based, at least in part, on the indicated priority. Further, the UE may indicate a tune-away to the network. The indication of the tune-away may include a cause and/or duration for the tune-away and may be provided at an RRC level or a network access stratum (NAS) level.

公开(公告)号：US10912054B2

公开(公告)日：2021-02-02

申请号：US16430492

申请日：2019-06-04

Applicant: Apple Inc.

Inventor： Vijay Venkataraman ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Sang Ho Baek ,  Shivani Suresh Babu ,  Utkarsh Kumar ,  Viswanath Nagarajan ,  Yifan Zhu ,  Hariharan Sukumar

IPC: H04W60/06 ,  H04W76/34 ,  H04W88/06 ,  H04W36/00 ,  H04W8/26

Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for de-registration of the wireless device from a first access type over a second access type. Methods also include procedures for maintaining state machines associated with both access types as well as procedures to determine a connection for re-transmitting a de-registration request and to avoid collisions between procedures associated with the first and second access types. Further, methods include an information element configured to indicate which access type has been de-registered.

公开(公告)号：US10575256B2

公开(公告)日：2020-02-25

申请号：US16280247

申请日：2019-02-20

Applicant: Apple Inc.

Inventor： Viswanath Nagarajan ,  Lakshmi N. Kavuri ,  Srinivasan Nimmala ,  Swapna V. Iyer ,  Sindhu Sivasankaran Nair ,  Sunny Arora ,  Jianxiong Shi ,  Sami M. Almalfouh

IPC: H04W52/02 ,  H04W48/16 ,  H04W88/02 ,  H04W36/24 ,  H04W4/80

Abstract: This disclosure relates to energy budgeted cellular service recovery techniques. A wireless device may determine one or more energy budgets for service recovery. It may be determined that cellular service loss is currently occurring. Cellular service recovery may be attempted, where service recovery scan timing for the attempt to recover cellular service is determined based at least in part on the one or more energy budgets for service recovery.

公开(公告)号：US20190230561A1

公开(公告)日：2019-07-25

申请号：US16372263

申请日：2019-04-01

Applicant: Apple Inc.

Inventor： Jianxiong Shi ,  Lakshmi N. Kavuri ,  Madhusudan Chaudhary ,  Thanigaivelu Elangovan ,  Viswanath Nagarajan ,  Yifan Zhu

IPC: H04W36/00 ,  H04W48/18 ,  H04W48/16 ,  H04W36/32 ,  H04J11/00 ,  H04W36/36

Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to perform more efficient frequency scans for potential base stations. According to techniques described herein, the UE may determine that it does not have cellular service and determine first information based on a last camped cell. A time period during which the first information was acquired may be determined and one or more frequency scans may be performed. The frequency scans may be limited to a set of frequencies based in part on the time period. Thus, if the time period is less than a first value, the set of frequencies may include a first set of frequencies and if the time period is greater than the first value but less than a second value, the set of frequencies may include the first set of frequencies and a second set of frequencies.

公开(公告)号：US20190182776A1

公开(公告)日：2019-06-13

申请号：US16280247

申请日：2019-02-20

Applicant: Apple Inc.

Inventor： Viswanath Nagarajan ,  Lakshmi N. Kavuri ,  Srinivasan Nimmala ,  Swapna V. Iyer ,  Sindhu Sivasankaran Nair ,  Sunny Arora ,  Jianxiong Shi ,  Sami M. Almalfouh

IPC: H04W52/02 ,  H04W48/16

Abstract: This disclosure relates to energy budgeted cellular service recovery techniques. A wireless device may determine one or more energy budgets for service recovery. It may be determined that cellular service loss is currently occurring. Cellular service recovery may be attempted, where service recovery scan timing for the attempt to recover cellular service is determined based at least in part on the one or more energy budgets for service recovery.

公开(公告)号：US10225803B1

公开(公告)日：2019-03-05

申请号：US15694483

申请日：2017-09-01

Applicant: Apple Inc.

Inventor： Viswanath Nagarajan ,  Lakshmi N. Kavuri ,  Srinivasan Nimmala ,  Swapna V. Iyer ,  Sindhu Sivasankaran Nair ,  Sunny Arora ,  Jianxiong Shi ,  Sami M. Almalfouh

IPC: H04W48/16 ,  H04W52/02 ,  H04W88/02 ,  H04W36/24 ,  H04W4/80

Abstract: This disclosure relates to energy budgeted cellular service recovery techniques. A wireless device may determine one or more energy budgets for service recovery. It may be determined that cellular service loss is currently occurring. Cellular service recovery may be attempted, where service recovery scan timing for the attempt to recover cellular service is determined based at least in part on the one or more energy budgets for service recovery.