公开(公告)号：US12052622B2

公开(公告)日：2024-07-30

申请号：US17935098

申请日：2022-09-24

Applicant: APPLE INC.

Inventor： Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Li Su ,  Sharad Garg ,  Syed A. Rahim ,  Sandeep K. Sunkesala ,  Jia Tang ,  Vijay Gadde ,  Tarakkumar G. Dhanani ,  Muhammad Saad

IPC: H04W76/11 ,  H04B17/318 ,  H04W36/08 ,  H04W52/24 ,  H04W72/044 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/27

CPC classification number: H04W36/08 ,  H04B17/318 ,  H04W52/242 ,  H04W72/046 ,  H04W74/0833 ,  H04W76/11 ,  H04W76/19 ,  H04W76/27

Abstract: Disclosed are embodiments for reducing likelihood of selecting a cell identified by a Radio Access Network (RAN) Notification Area ID (RNA ID) that is different from that identifying a last or current serving cell so as to avoid an RNA update procedure; reducing Random Access Channel (RACH) transmissions for an RNA update procedure and a mobile originated (MO) data transmission in response to a Radio Resource Control (RRC) triggered RNA update procedure; and selecting a band or beam in a multi-band/beam cellular system that improves RACH efficiency.

公开(公告)号：US20230099276A1

公开(公告)日：2023-03-30

申请号：US17945524

申请日：2022-09-15

Applicant: Apple Inc.

Inventor： Muhammad Saad ,  Syed A. Rahim ,  Nitin A. Naik ,  Gopi Krishna Koneru ,  Vijay Venkataraman ,  Neeraj D. Vaghela

IPC: H04B7/06 ,  H04W74/08 ,  H04W72/04 ,  H04B17/318

Abstract: Systems and processes are for measuring link metrics for a plurality of reference signals associated with a plurality of beams from a base station. The systems and methods are for determining that a link metric value is less than or equal to a predetermined threshold. The systems and process include detecting beam failure, classifying beam recovery as high priority, opportunistic beam failure recovery and performing an optimal random access channel (RACH) process through intelligent selection of beams and modules.

公开(公告)号：US20210410030A1

公开(公告)日：2021-12-30

申请号：US16915893

申请日：2020-06-29

Applicant: APPLE INC.

Inventor： Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Li Su ,  Sharad Garg ,  Syed A. Rahim ,  Sandeep K. Sunkesala ,  Jia Tang ,  Vijay Gadde ,  Tarakkumar G. Dhanani ,  Muhammad Saad

IPC: H04W36/08 ,  H04W76/11 ,  H04W76/27 ,  H04W74/08 ,  H04W76/19 ,  H04W72/04 ,  H04W52/24 ,  H04B17/318

Abstract: Disclosed are embodiments for reducing likelihood of selecting a cell identified by a Radio Access Network (RAN) Notification Area ID (RNA ID) that is different from that identifying a last or current serving cell so as to avoid an RNA update procedure; reducing Random Access Channel (RACH) transmissions for an RNA update procedure and a mobile originated (MO) data transmission in response to a Radio Resource Control (RRC) triggered RNA update procedure; and selecting a band or beam in a multi-band/beam cellular system that improves RACH efficiency.

公开(公告)号：US11490306B2

公开(公告)日：2022-11-01

申请号：US16915893

申请日：2020-06-29

Applicant: APPLE INC.

Inventor： Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Li Su ,  Sharad Garg ,  Syed A. Rahim ,  Sandeep K. Sunkesala ,  Jia Tang ,  Vijay Gadde ,  Tarakkumar G. Dhanani ,  Muhammad Saad

IPC: H04W76/11 ,  H04W36/08 ,  H04W76/27 ,  H04B17/318 ,  H04W76/19 ,  H04W72/04 ,  H04W52/24 ,  H04W74/08

Abstract: Disclosed are embodiments for reducing likelihood of selecting a cell identified by a Radio Access Network (RAN) Notification Area ID (RNA ID) that is different from that identifying a last or current serving cell so as to avoid an RNA update procedure; reducing Random Access Channel (RACH) transmissions for an RNA update procedure and a mobile originated (MO) data transmission in response to a Radio Resource Control (RRC) triggered RNA update procedure; and selecting a band or beam in a multi-band/beam cellular system that improves RACH efficiency.

公开(公告)号：US20210385707A1

公开(公告)日：2021-12-09

申请号：US17331331

申请日：2021-05-26

Applicant: Apple Inc.

Inventor： Muhammad Saad ,  Syed A. Rahim ,  Sharad Garg ,  Vijay Venkataraman ,  Jia Tang ,  Wenping Lou ,  Thanigaivelu Elangovan ,  Pengkai Zhao ,  Tarakkumar G. Dhanani

IPC: H04W36/00 ,  H04W24/04 ,  H04W74/08

Abstract: Apparatuses, systems, and methods for RACH procedures to avoid excessive handover/secondary cell group failures. A base station may declare a handover and/or secondary cell group (SCG) failure and may determine that a failure threshold has been met. The base station may perform a remedial action in response to meeting the failure threshold. The failure threshold may be multi-dimensional, where a first dimension is associated with a number of handover/SCG failures and where a second dimension is associated with a time period in which the number of handover/SCG failures occurred. Further, a third dimension may be associated with a UE mobility state and a fourth dimension may be associated with whether the UE is using FR1 or FR2. The remedial action in response to meeting the failure threshold may include the base station suspending transmission of measurement object configurations for a specified period of time.

公开(公告)号：US11917464B2

公开(公告)日：2024-02-27

申请号：US17331331

申请日：2021-05-26

Applicant: Apple Inc.

Inventor： Muhammad Saad ,  Syed A Rahim ,  Sharad Garg ,  Vijay Venkataraman ,  Jia Tang ,  Wenping Lou ,  Thanigaivelu Elangovan ,  Pengkai Zhao ,  Tarakkumar G Dhanani

IPC: H04W36/00 ,  H04W74/08 ,  H04W24/04 ,  H04W76/19

CPC classification number: H04W36/0079 ,  H04W24/04 ,  H04W74/0833 ,  H04W76/19 ,  H04W36/0069

Abstract: Apparatuses, systems, and methods for RACH procedures to avoid excessive handover/secondary cell group failures. A base station may declare a handover and/or secondary cell group (SCG) failure and may determine that a failure threshold has been met. The base station may perform a remedial action in response to meeting the failure threshold. The failure threshold may be multi-dimensional, where a first dimension is associated with a number of handover/SCG failures and where a second dimension is associated with a time period in which the number of handover/SCG failures occurred. Further, a third dimension may be associated with a UE mobility state and a fourth dimension may be associated with whether the UE is using FR1 or FR2. The remedial action in response to meeting the failure threshold may include the base station suspending transmission of measurement object configurations for a specified period of time.

公开(公告)号：US20230078257A1

公开(公告)日：2023-03-16

申请号：US17935098

申请日：2022-09-24

Applicant: APPLE INC.

Inventor： Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Li Su ,  Sharad Garg ,  Syed A. Rahim ,  Sandeep K. Sunkesala ,  Jia Tang ,  Vijay Gadde ,  Tarakkumar G. Dhanani ,  Muhammad Saad

IPC: H04W36/08 ,  H04W76/11 ,  H04W76/27 ,  H04B17/318 ,  H04W76/19 ,  H04W72/04 ,  H04W52/24 ,  H04W74/08

Abstract: Disclosed are embodiments for reducing likelihood of selecting a cell identified by a Radio Access Network (RAN) Notification Area ID (RNA ID) that is different from that identifying a last or current serving cell so as to avoid an RNA update procedure; reducing Random Access Channel (RACH) transmissions for an RNA update procedure and a mobile originated (MO) data transmission in response to a Radio Resource Control (RRC) triggered RNA update procedure; and selecting a band or beam in a multi-band/beam cellular system that improves RACH efficiency.