公开(公告)号：US20200137744A1

公开(公告)日：2020-04-30

申请号：US16437223

申请日：2019-06-11

Applicant: Apple Inc.

Inventor： Murtaza A. Shikari ,  Sree Ram Kodali ,  Srirang A. Lovlekar ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Adesh Kumar ,  Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Xu Ou ,  Longda Xing ,  Dawei Zhang

IPC: H04W72/04 ,  H04W76/10 ,  H04W12/00 ,  H04L5/00

Abstract: This disclosure relates to techniques for reducing signaling overhead associated with signaling the capability of a wireless device and/or other messages. Among various possibilities, tags and/or compression may be used. Additionally, techniques for enhanced security and signaling between network devices are disclosed.

公开(公告)号：US10512025B2

公开(公告)日：2019-12-17

申请号：US15812369

申请日：2017-11-14

Applicant: APPLE INC.

Inventor： Srirang A. Lovlekar ,  Vijay Venkataraman ,  Murtaza A. Shikari ,  Srinivas Burugupalli ,  Vijay Kumar Ramamurthi ,  Srinivasan Nimmala ,  Sethuraman Gurumoorthy ,  Muthukumaran Dhanapal ,  Longda Xing ,  Ajoy K. Singh ,  Jesus A. Gutierrez Gomez ,  Saran Krishnaswamy

IPC: H04W48/02 ,  H04W52/02 ,  H04M1/725 ,  H04W4/90

Abstract: A device sets an activity mode for a cellular connection. A method to set the activity mode is performed at a device located with a user that is configured to establish a network connection to a network. The method includes determining a status of the user, the status indicating an activity state or a non-activity state of the user. The method includes, when the status indicates the activity state, activating an activity mode on the device that restricts select types of mobile originating data traffic.

公开(公告)号：US20190306823A1

公开(公告)日：2019-10-03

申请号：US16181711

申请日：2018-11-06

Applicant: Apple Inc.

Inventor： Shivani Suresh Babu ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Srinivasan Nimmala ,  Yifan Zhu

IPC: H04W60/04

Abstract: This disclosure relates to techniques for network delaying cellular re-registration during critical conditions. A wireless device may register for cellular service with a cellular network. The wireless device may receive a configuration update command from a network element of the cellular network. The configuration update command may request re-registration of the wireless device. The wireless device may determine to delay responding to the configuration update command based at least in part on one or more conditions in effect at the wireless device. For example, one possible such condition may include if a protocol data unit session associated with emergency services is active at the wireless device.

公开(公告)号：US20190281654A1

公开(公告)日：2019-09-12

申请号：US16419048

申请日：2019-05-22

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Srinivasan Nimmala ,  Farouk Belghoul

IPC: H04W76/30 ,  H04W76/10 ,  H04W48/02 ,  H04W12/00

Abstract: This disclosure relates to techniques for securely performing connection release and network redirection in a wireless communication system. A wireless device may establish a radio resource control (RRC) connection with a first cell. The wireless device may receive a RRC connection release message from the first cell. The RRC connection release message may include an indication to redirect the wireless device to a second cell. The RRC connection with the first cell may be released. It may be determined whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received. A new serving cell may be selected based at least in part on whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received.

公开(公告)号：US20190075522A1

公开(公告)日：2019-03-07

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: 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：US10159030B2

公开(公告)日：2018-12-18

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：US20180324592A1

公开(公告)日：2018-11-08

申请号：US16033282

申请日：2018-07-12

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Srinivasan Nimmala ,  Farouk Belghoul

IPC: H04W12/08 ,  H04W48/16 ,  H04W36/08 ,  H04W76/18 ,  H04W36/00

CPC classification number: H04W12/08 ,  H04W12/06 ,  H04W36/0061 ,  H04W36/08 ,  H04W36/38 ,  H04W48/16 ,  H04W76/18 ,  H04W76/30

Abstract: This disclosure relates to techniques for securely performing connection release and network redirection in a wireless communication system. A wireless device may establish a radio resource control (RRC) connection with a first cell. The wireless device may receive a RRC connection release message from the first cell. The RRC connection release message may include an indication to redirect the wireless device to a second cell. The RRC connection with the first cell may be released. It may be determined whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received. A new serving cell may be selected based at least in part on whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received.

公开(公告)号：US10110294B2

公开(公告)日：2018-10-23

申请号：US14952319

申请日：2015-11-25

Applicant: Apple Inc.

Inventor： Srinivasan Nimmala ,  Navid Damji ,  Tarik Tabet ,  Li Su ,  Longda Xing ,  Zhu Ji

IPC: H04B7/08 ,  H04W24/02 ,  H04W52/02

Abstract: A method for adaptively disabling receiver diversity is provided. The method can include a wireless communication device determining an active data traffic pattern; defining a threshold channel quality metric based at least in part on a threshold channel quality needed to support a threshold quality of service for the active data traffic pattern; comparing a measured channel quality to the threshold channel quality metric; and disabling receiver diversity in an instance in which the measured channel quality metric satisfies the threshold channel quality metric.

公开(公告)号：US09883546B2

公开(公告)日：2018-01-30

申请号：US14845876

申请日：2015-09-04

Applicant: Apple Inc.

Inventor： Venkateswara Rao Manepalli ,  Madhusudan Chaudhary ,  Prashant H. Vashi ,  Raghuveer Mallikarjunan ,  Srinivasan Nimmala ,  Anil G. Naik

IPC: H04W76/02 ,  H04W48/20

CPC classification number: H04W76/18 ,  H04W48/20

Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to perform a postponement of a data service request are described. A UE may detect a data service request failure during cell reselection and postpone a resend of the data service request based on a status of the cell reselection. The status may be an indication that the UE is attempting to camp on a cell or that the UE is monitoring one or more metrics associated with cell reselection. To postpone the data service request, the UE may postpone the data service request for a specified period of time or until the cell reselection is complete. The status may be monitored on a first layer of a protocol stack and the data service request may generated by a second layer of the protocol stack. The postponement may be for a fixed or variable time period.

公开(公告)号：US12302455B2

公开(公告)日：2025-05-13

申请号：US17773521

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Vijay Venkataraman ,  Dawei Zhang ,  Haijing Hu ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Sridhar Prakasam ,  Srinivasan Nimmala ,  Utkarsh Kumar ,  Yifan Zhu

IPC: H04W8/24 ,  H04W48/08 ,  H04W76/16

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to perform to perform capability updates. Under at least some circumstances, the UE may use a non-cellular (e.g., non-3GPP) access to transmit updated capability information to a cellular network. Elements of the core of the cellular network may provide an identifier corresponding to the updated capability information to the UE for use in future registrations with the cellular network. Further, the core network may provide the updated capability information to a cellular radio access network associated the cellular network. The UE and the cellular network may communicate according to the updated capability.