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：US20180167800A1

公开(公告)日：2018-06-14

申请号：US15894180

申请日：2018-02-12

Applicant: Apple Inc.

Inventor： Sindhu Sivasankaran Nair ,  Tahir Shamim ,  Gaurav Arya ,  Thanigaivelu Elangovan ,  Lakshmi N. Kavuri

IPC: H04W8/00 ,  H04W76/19

CPC classification number: H04W8/005 ,  H04W8/183 ,  H04W8/22 ,  H04W48/08 ,  H04W48/16 ,  H04W64/00 ,  H04W76/19

Abstract: This disclosure relates to out of service recovery techniques for an accessory device. According to some embodiments, the accessory device may receive cellular communication system selection information from a paired device. The accessory device may store the communication system selection information. At some point, it may be determined that the accessory device has lost cellular communication service. The accessory device may perform a cellular communication service scan utilizing the system selection information received from the paired device along with its own historical information and location based frequency lists.

公开(公告)号：US12273940B2

公开(公告)日：2025-04-08

申请号：US16992741

申请日：2020-08-13

Applicant: Apple Inc.

Inventor： Vijay Venkataraman ,  Krisztian Kiss ,  Shashikant Tiwari ,  Srinivasan Nimmala ,  Lakshmi N. Kavuri ,  Shivani Suresh Babu ,  Sree Ram Kodali ,  Sridhar Prakasam ,  Stephen C. Schweizer ,  Yifan Zhu

IPC: H04W88/06 ,  H04L65/1053 ,  H04L65/1104 ,  H04M7/00 ,  H04W48/18 ,  H04W76/12

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for EPS fallback when initiating a voice call while camped on a 5G cell. The UE may camp on a 5G network by performing an IMS registration procedure/IMS SIP invite procedure with an IMS. The UE may initiate a voice call and determine that the voice call cannot be established over the 5G NR network. In response, the UE may perform a TAU procedure or an attachment procedure with a cell of a 4G network. The IMS may be transferred to the 4G network during TAU/attachment procedure. The UE may, in response to determining that it is barred from the 4G network, transition back to the 5G network and transmit, to the 5G NR network, a SIP cancel request to allow a context associated with the UE to be cleared from the IMS.

公开(公告)号：US12273746B2

公开(公告)日：2025-04-08

申请号：US18357656

申请日：2023-07-24

Applicant: Apple Inc.

Inventor： Alosious Pradeep Prabhakar ,  Wen Zhao ,  Lakshmi N. Kavuri ,  Li Su ,  Sagar B. Shah ,  Sriram Subramanian ,  Vijay Venkataraman ,  Vishwanth Kamala Govindaraju ,  Shiva Krishna Narra ,  Sanjeevi Balasubramanian ,  Wei Zhang ,  Madhukar K. Shanbhag ,  Sandeep K. Sunkesala ,  Srinivasan Nimmala ,  Muthukumaran Dhanapal ,  Tarakkumar G. Dhanani ,  Sree Ram Kodali ,  Ioannis Pefkianakis ,  Dhruv Khati ,  Franco Travostino ,  Thanigaivelu Elangovan ,  Madhusudan Chaudhary ,  Geoffrey R. Hall

IPC: H04W24/02 ,  H04W52/28 ,  H04W76/15 ,  H04W76/23 ,  H04W76/27 ,  H04W76/30

Abstract: This disclosure relates to methods and devices for mitigating overheating in a user equipment device (UE). The UE is configured to communicate over each of LTE and 5G NR and may be configured to communicate through 5G NR over each of a Sub-6 GHz and a millimeter Wave (mmW) frequency band. The UE is configured to establish an ENDC connection with an enB and one or more gNBs. The UE implements intelligent transmission modification and cell measurement adjustments to mitigate overheating and reduce battery drain.

公开(公告)号：US12108475B2

公开(公告)日：2024-10-01

申请号：US18185934

申请日：2023-03-17

Applicant: Apple Inc.

Inventor： Shivani Suresh Babu ,  Lakshmi N. Kavuri ,  Krisztian Kiss

IPC: H04W76/15 ,  H04L41/0816

CPC classification number: H04W76/15 ,  H04L41/0816

Abstract: Apparatuses, systems, and methods for refreshing a GUTI of a UE. The UE may receive a GUTI from an AMF as part of a registration process. After a timer has expired, the UE may receive a new GUTI from the AMF. The timer may be provided by the UE as a request for use by the AMF. Alternatively, the timer may be used by the UE and the UE may request the new GUTI upon expiry of the timer, e.g., using an existing message or a new message, as desired.

公开(公告)号：US12022493B2

公开(公告)日：2024-06-25

申请号：US17189015

申请日：2021-03-01

Applicant: Apple Inc.

Inventor： Madhusudan Chaudhary ,  Arun G. Mathias ,  Rajesh Ambati ,  Ajay Singh ,  Franco Travostino ,  Muthukumaran Dhanapal ,  Lakshmi N. Kavuri ,  Ajoy K. Singh ,  Thanigaivelu Elangovan ,  Ioannis Pefkianakis ,  Raghuveer Mallikarjunan ,  Faraz Faheem ,  Geoffrey R. Hall ,  Harshit Chuttani ,  Rohan C. Malthankar ,  Prashant H. Vashi ,  Hisham A. Mahmoud ,  Henri S. Berger ,  Divyaprakash P. Bhojkumar

IPC: H04W72/51 ,  H04L65/61 ,  H04W52/02 ,  H04W72/0453

CPC classification number: H04W72/51 ,  H04L65/61 ,  H04W52/027 ,  H04W52/0277 ,  H04W52/028 ,  H04W72/0453

Abstract: Embodiments described herein relate to managing access to 5G cellular baseband resources for 5G-capable wireless devices. A wireless device can monitor application workloads by analyzing communication network performance requirements for a given application in-use or launching for future use along with system-level indications of overall device usage, battery level, and mobility status to determine whether access to 5G cellular baseband resources is recommended for an application. A 5G cellular baseband resource recommendation is provided for an application indicating a level of bandwidth in current use or expected for future use as well as a confidence metric in the bandwidth level indication. The 5G cellular baseband resource recommendation is used with additional device criteria to determine whether access to one or more 5G radio frequency bands is allowed.

公开(公告)号：US12022418B2

公开(公告)日：2024-06-25

申请号：US16949499

申请日：2020-10-30

Applicant: Apple Inc.

Inventor： Yifan Zhu ,  Cahya A Masputra ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Utkarsh Kumar ,  Vijay Venkataraman

IPC: H04W76/12 ,  H04L69/322 ,  H04W8/08 ,  H04W60/00

CPC classification number: H04W60/005 ,  H04L69/322 ,  H04W8/08 ,  H04W76/12

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：US20240073827A1

公开(公告)日：2024-02-29

申请号：US18351016

申请日：2023-07-12

Applicant: APPLE INC.

Inventor： Lijie Zhang ,  Zhiwei Wang ,  Lakshmi N. Kavuri

IPC: H04W52/24 ,  H04W52/42

CPC classification number: H04W52/245 ,  H04W52/42

Abstract: Systems and methods for enhanced power control at a user equipment (UE) under poor channel conditions respective to antenna transmit diversity (ATD) mechanisms are discussed herein. In some embodiments, a UE may reset a transmit power control (TPC) power adjustment value when an ATD antenna switch of the ATD mechanism is performed. In some embodiments, a UE may reduce the value of an ATD hysteresis timer upon determining that a reference signal receive power (RSRP) change on a monitored reference signal that drives a pathloss calculation at the UE exceeds a threshold. In some embodiments, a UE may scale a filtering coefficient of a pathloss calculation mechanism upon determining that an RSRP change on a monitored reference signal that drives a pathloss calculation at the UE exceeds a threshold.