公开(公告)号：US20210105691A1

公开(公告)日：2021-04-08

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: H04W36/30 ,  H04W36/14 ,  H04L29/06 ,  H04B17/318 ,  H04L12/26

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：US20210105596A1

公开(公告)日：2021-04-08

申请号：US17027534

申请日：2020-09-21

Applicant: Apple Inc.

Inventor： Alosious Pradeep Prabhakar ,  Mohammed Sadique ,  Vijay Venkataraman ,  Krisztian Kiss ,  Jordi Agud Ruiz ,  Yip Pong Herbert Wong ,  Kok Yin Chan ,  Srinivasan Nimmala ,  Lakshmi N. Kavuri ,  Yifan Zhu ,  Utkarsh Kumar

IPC: H04W4/50 ,  H04W8/22

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE), manufacturer server, and/or cellular network to perform radio capability signaling. A new type of UE radio capability identifier is provided which may allow a network to distinguish between similar UEs that have or have not implemented a capability update. In order to perform a forced capability update, a manufacturer may issue information about the update to a cellular network (and receive acknowledgement of the information) prior to pushing the update to UEs. In response to an unforced capability update, a cellular network may maintain multiple UE radio capability identifiers for similar UEs which have or have not implemented the update. A UE radio capability identifier may be adjusted dynamically in response to temporary changes in the UE's capability.

公开(公告)号：US20210051530A1

公开(公告)日：2021-02-18

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: H04W36/00 ,  H04L29/06 ,  H04W76/12 ,  H04W88/06 ,  H04M7/00

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：US20200382917A1

公开(公告)日：2020-12-03

申请号：US16890166

申请日：2020-06-02

Applicant: Apple Inc.

Inventor： Lakshmi N. Kavuri ,  Utkarsh Kumar ,  Shashikant Tiwari ,  Abhilash Bhagyanagar ,  Ashwini Pradeep ,  Mirza Mohd Ahsen Baig

IPC: H04W4/14 ,  H04W8/18 ,  H04W76/14

Abstract: Methods and devices for a wireless accessory device (AD) comprising a cellular radio to communicate with a cellular network using the cellular radio. The wireless AD establishes a texting session with a network entity through the cellular network and using the cellular radio. The wireless AD initiates a countdown timer in response to establishing the texting session. The wireless AD determines that a companion device to the wireless AD is reachable by the wireless AD. The wireless AD refrains from pairing with the companion device until the countdown timer expires in response to determining that the companion device is reachable by the wireless device. After expiration of the countdown timer, if the companion device is still reachable by the wireless AD, the wireless AD may pair with the companion device and/or power down its cellular radio.

公开(公告)号：US20200329338A1

公开(公告)日：2020-10-15

申请号：US16380102

申请日：2019-04-10

Applicant: APPLE INC.

Inventor： Srirang A. Lovlekar ,  Murtaza A. Shikari ,  Zheng Lu ,  Pankaj Subhash Vasandani ,  Srinivasan Nimmala ,  Sethuraman Gurumoorthy ,  Viswanath Nagarajan ,  Lakshmi N. Kavuri ,  Sridhar Prakasam ,  Robert K. Kitchens ,  Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Xiangpeng Jing

IPC: H04W4/02 ,  H04W8/08 ,  H04W76/11 ,  H04W8/30 ,  H04W36/08 ,  H04W24/10 ,  H04B7/0456 ,  H04W74/08 ,  H04W80/02

Abstract: A device and method for a user equipment (UE) to implement power savings mechanisms when operating within a significant location. The UE identifies that the UE is at a significant location. The significant location is a location relative to a currently camped cell of a network. At a first time and at the significant location, the UE performs a type of operation related to the network connection. The UE stores information corresponding to the performance of the type of operation at the first time in a profile associated with the significant location. At a second time and at the significant location, the UE performs the type of operation related to the network connection. The performance of the type of operation at the second time is modified based on the information stored in the profile associated with the significant location.

公开(公告)号：US10687182B1

公开(公告)日：2020-06-16

申请号：US16594159

申请日：2019-10-07

Applicant: Apple Inc.

Inventor： Lakshmi N. Kavuri ,  Utkarsh Kumar ,  Shashikant Tiwari ,  Abhilash Bhagyanagar ,  Ashwini Pradeep ,  Mirza Mohd Ahsen Baig

IPC: H04W4/00 ,  H04W4/14 ,  H04W8/18 ,  H04W76/14

Abstract: Methods and devices for a wireless accessory device (AD) comprising a cellular radio to communicate with a cellular network using the cellular radio. The wireless AD establishes a texting session with a network entity through the cellular network and using the cellular radio. The wireless AD initiates a countdown timer in response to establishing the texting session. The wireless AD determines that a companion device to the wireless AD is reachable by the wireless AD. The wireless AD refrains from pairing with the companion device until the countdown timer expires in response to determining that the companion device is reachable by the wireless device. After expiration of the countdown timer, if the companion device is still reachable by the wireless AD, the wireless AD may pair with the companion device and/or power down its cellular radio.

公开(公告)号：US10548107B2

公开(公告)日：2020-01-28

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 ,  H04W24/08 ,  H04W84/08 ,  H04W84/04

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：US20200008167A1

公开(公告)日：2020-01-02

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 ,  H04W36/00 ,  H04W88/06

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：US20190254094A1

公开(公告)日：2019-08-15

申请号：US16225271

申请日：2018-12-19

Applicant: Apple Inc.

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

IPC: H04W76/15 ,  H04L12/24

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：US10159057B1

公开(公告)日：2018-12-18

申请号：US15612832

申请日：2017-06-02

Applicant: APPLE INC.

Inventor： Utkarsh Kumar ,  Lakshmi N. Kavuri ,  Samuel J. Miller ,  Harshit Chuttani ,  Rohan Malthankar ,  Francisco Gonzalez

IPC: H04W60/04 ,  H04W88/02 ,  H04W8/18

Abstract: A device, system, and method persists network registration rejection causes. The method is performed at a device connected to a network and comprising a temporary memory and a persistent memory, the device using the data stored in the temporary memory when performing network registration operations. When a power cycle is detected, the method includes determining whether there is persistent data in the persistent memory for a first attempt to register with the network prior to the power cycle, the persistent data including a rejection cause for the first attempt. When there is the persistent data in the persistent memory, the method includes determining whether the persistent data is valid for a second attempt to register with the network after the power cycle. When the persistent data is valid, the method includes generating and storing cause data based on the persistent data in the temporary memory prior to the second attempt.