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：US20200053830A1

公开(公告)日：2020-02-13

申请号：US16525934

申请日：2019-07-30

Applicant: Apple Inc.

Inventor： Vijay Venkataraman ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Yifan Zhu ,  Muthukumaran Dhanapal ,  Srinivasan Nimmala ,  Hariharan Sukumar ,  Shivani Suresh Babu

IPC: H04W88/02 ,  H04W60/00 ,  H04W68/12 ,  H04W68/02 ,  H04W76/28 ,  H04W76/25 ,  H04W76/27 ,  H04W76/16

Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to dual-registration in a fifth generation (5G) New Radio (NR) network, including notification procedure enhancements over cellular (e.g., 3GPP) and non-cellular (e.g., non-3GPP) access, dual-registration enhancements, and paging enhancements. Methods also include procedures for a network to determine an access type to notify a UE of pending data and for a wireless device and network to mitigate paging collisions.

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：US10306495B2

公开(公告)日：2019-05-28

申请号：US15419868

申请日：2017-01-30

Applicant: Apple Inc.

Inventor： Li Su ,  Srinivasan Nimmala

IPC: H04W24/00 ,  H04W24/08 ,  H04W76/19 ,  H04W76/27 ,  H04W72/12 ,  H04W74/08

Abstract: Methods, apparatuses and computer readable media are described that determine a connection state between a mobile wireless device and a wireless network upon detection of an interruption of a connection between the mobile wireless device and the wireless network. The mobile wireless device transmits an uplink resource allocation message to the wireless network, and when receiving no response to the uplink resource allocation message, transmits a random access message to the wireless network. When receiving no response from the wireless network to the random access message, the mobile wireless device executes a radio link failure procedure. In an embodiment, the uplink resource allocation message includes a unique identifier for an existing radio resource control connection between the mobile wireless device and the wireless network.

公开(公告)号：US10285107B2

公开(公告)日：2019-05-07

申请号：US15685601

申请日：2017-08-24

Applicant: Apple Inc.

Inventor： Li Su ,  Srinivasan Nimmala

IPC: H04W36/32 ,  H04W72/00 ,  H04L1/00 ,  H04W72/12 ,  H04W88/02 ,  H04W92/02

Abstract: This disclosure relates to techniques for dynamically changing coverage modes and/or communication bandwidth in a wireless communication system. According to some embodiments, a wireless device may attach to a serving cell associated with a cellular network. A volume of data for upcoming communication with the cellular network may be determined. An indication of a requested communication bandwidth may be provided to the serving cell. The wireless device may communicate data with the serving cell using the requested communication bandwidth. In some instances, a request for narrowband communication bandwidth may result in use of a coverage enhancement mode, while a request for wideband communication bandwidth may result in use of a normal coverage mode.

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.

公开(公告)号：US20180351659A1

公开(公告)日：2018-12-06

申请号：US15612539

申请日：2017-06-02

Applicant: Apple Inc.

Inventor： Srinivasan Nimmala ,  Sethuraman Gurumoorthy ,  Vijay Venkataraman ,  Vijay Kumar Ramamurthi ,  Srirang A. Lovlekar ,  Lakshmi N. Kavuri ,  Sang Ho Baek ,  Yifan Zhu ,  Karthik Anantharaman ,  Rangakrishna Nallandigal ,  Sree Ram Kodali ,  Adesh Kumar ,  Xin Wang ,  Eyad Al-Shemali ,  Xiangpeng Jing ,  Sivaramachandran Ganesan ,  Longda Xing ,  Jianxiong Shi ,  Sami M. Almalfouh ,  Zhu Ji ,  Johnson O. Sebeni ,  Beibei Wang ,  Sunny Arora

IPC: H04B15/02 ,  H04B5/00

Abstract: Methods, systems and apparatus for a user equipment to mitigate interference in a wireless charging state. The user equipment may determine when the user equipment enters a wireless charging state and, when the user equipment enters the wireless charging state, activate an interference mitigation. The user equipment may further determine when the UE exits the wireless charging state and, when the user equipment exits the wireless charging state, deactivate the interference mitigation.

公开(公告)号：US10091705B1

公开(公告)日：2018-10-02

申请号：US15606474

申请日：2017-05-26

Applicant: Apple Inc.

Inventor： Murtaza A. Shikari ,  Srirang A. Lovlekar ,  Srinivasan Nimmala ,  Lakshmi N. Kavuri

IPC: H04W48/04 ,  H04W76/18 ,  H04W4/50 ,  H04W76/02 ,  H04W4/00 ,  H04W48/18 ,  H04W84/04

Abstract: This disclosure relates to techniques for avoiding denial of service in a wireless communication system. A wireless device may unsuccessfully attempt to obtain cellular service. Based at least in part on cause information for the unsuccessful attempt to obtain cellular service, and potentially also based at least in part on cause information for one or more previous unsuccessful attempts to obtain cellular service, the wireless device may selectively determine to disable one or more features at the wireless device, bar a cell on which the unsuccessful attempt to obtain cellular service is made, bar a public land mobile network on which the unsuccessful attempt to obtain cellular service is made, and/or bar a radio access technology according to which the unsuccessful attempt to obtain cellular service is made and perform a subsequent attempt to obtain cellular service.

公开(公告)号：US10045287B1

公开(公告)日：2018-08-07

申请号：US15592327

申请日：2017-05-11

Applicant: Apple Inc.

Inventor： Lakshmi N. Kavuri ,  Jianxiong Shi ,  Srinivasan Nimmala ,  Viswanath Nagarajan ,  Yifan Zhu

IPC: H04W4/00 ,  H04W48/18 ,  H04W8/12 ,  H04W48/14 ,  H04B17/318 ,  H04W60/04 ,  H04W88/02 ,  H04W84/04

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, in response to detecting that UE does not have cellular service, perform a full band scan to search for a last registered public land mobile network (PLMN) and the full band scan may discover one or more cells not associated with the last registered PLMN. The UE may populate a database with one or more parameters associated with the one or more cells and in response to not finding the last registered PLMN, perform a targeted scan limited to a set of PLMNs found during the full band scan. In some embodiments, each PLMN in the set of PLMNs may be comprised in a roaming PLMN list for an operator.

公开(公告)号：US20180070282A1

公开(公告)日：2018-03-08

申请号：US15685601

申请日：2017-08-24

Applicant: Apple Inc.

Inventor： Li Su ,  Srinivasan Nimmala

IPC: H04W36/32 ,  H04W72/00

CPC classification number: H04W36/32 ,  H04L1/0001 ,  H04L1/0025 ,  H04W72/005 ,  H04W72/1205 ,  H04W72/1284 ,  H04W88/02 ,  H04W92/02

Abstract: This disclosure relates to techniques for dynamically changing coverage modes and/or communication bandwidth in a wireless communication system. According to some embodiments, a wireless device may attach to a serving cell associated with a cellular network. A volume of data for upcoming communication with the cellular network may be determined. An indication of a requested communication bandwidth may be provided to the serving cell. The wireless device may communicate data with the serving cell using the requested communication bandwidth. In some instances, a request for narrowband communication bandwidth may result in use of a coverage enhancement mode, while a request for wideband communication bandwidth may result in use of a normal coverage mode.