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公开(公告)号：US11985563B2
公开(公告)日：2024-05-14
申请号：US17951542
申请日：2022-09-23
Applicant: Apple Inc.
Inventor： Nihar Garg , Ehsan Ahmed Quadri Syed , Karthik Anantharaman , Mohamed L. Haidara , Shashikant Tiwari , Sree Ram Kodali , Sridhar Prakasam , Vijay Venkataraman
CPC classification number: H04W36/30 , H04W36/0079
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for mitigation of secondary cell failures. A user equipment (UE) may establish communication with a macro cellular base station. The UE may perform a signal quality measurement of a small cell base station and compare the signal quality measurement to a threshold. Based on the signal quality measurement exceeding the threshold, the UE may attempt to additionally connect to the small cell base station. In response to a radio link failure of the second base station, the UE may modify the first threshold. In response to subsequent failures to additionally connect to the small cell base station using the modified first threshold, the UE may disable connections to the small cell base station.
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公开(公告)号：US11490293B2
公开(公告)日：2022-11-01
申请号：US16863522
申请日：2020-04-30
Applicant: APPLE INC.
Inventor： Sree Ram Kodali , Farouk Belghoul , Shashikant Tiwari , Sridhar Prakasam , Vijay Venkataraman
Abstract: Re-connecting to a first radio access network (RAN) of a first radio access technology (RAT) may include initially connecting to the first RAN. A connection associated with a voice call may then be connected that includes connecting to a RAN of a second RAT. In response to the voice call connecting to the second RAN, information for both a frequency and a cell associated with connecting to the first RAN may be stored. An end to the voice call may be identified. In response to determining that the voice call has ended, a timer may be generated at the UE that comprises a specified time period and the timer and the information stored for both the frequency and the cell associated with connecting to the first RAN may be utilized to re-connect to the first RAN.
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公开(公告)号：US11140526B2
公开(公告)日：2021-10-05
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
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.
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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.
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公开(公告)号：US11490312B2
公开(公告)日：2022-11-01
申请号：US16952435
申请日：2020-11-19
Applicant: Apple Inc.
Inventor： Nihar Garg , Ehsan Ahmed Quadri Syed , Karthik Anantharaman , Mohamed L. Haidara , Shashikant Tiwari , Sree Ram Kodali , Sridhar Prakasam , Vijay Venkataraman
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for mitigation of secondary cell failures. A user equipment (UE) may establish communication with a macro cellular base station. The UE may perform a signal quality measurement of a small cell base station and compare the signal quality measurement to a threshold. Based on the signal quality measurement exceeding the threshold, the UE may attempt to additionally connect to the small cell base station. In response to a radio link failure of the second base station, the UE may modify the first threshold. In response to subsequent failures to additionally connect to the small cell base station using the modified first threshold, the UE may disable connections to the small cell base station.
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Patent Agency Ranking
公开(公告)号：US12057927B2
公开(公告)日：2024-08-06
申请号：US16948418
申请日：2020-09-17
Applicant: Apple Inc.
Inventor： Srirang A. Lovlekar , Sree Ram Kodali , Sethuraman Gurumoorthy , Lakshmi N. Kavuri , Murtaza A. Shikari , Shashikant Tiwari , Sridhar Prakasam , Vijay Gadde , Vijay Venkataraman , Xiangpeng Jing
CPC classification number: H04J11/0073 , H04L5/0092 , H04L27/2657 , H04W56/003 , H04W76/27 , H04J2011/0096
Abstract: The exemplary embodiments describe devices, systems and methods for implementing various exemplary techniques related to fifth generation (5G) new radio (NR) cell search. A user equipment (UE) selects a frequency band to scan during a cell search procedure and identifies a frequency within the frequency band that is associated with a synchronization signal block (SSB) based on an indication of the frequency stored locally at the UE prior to the cell search procedure. The UE then scans the frequency for the SSB and determines that the SSB has been broadcast by a cell over the frequency.
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公开(公告)号：US20230013274A1
公开(公告)日：2023-01-19
申请号：US17951542
申请日：2022-09-23
Applicant: Apple Inc.
Inventor： Nihar Garg , Ehsan Ahmed Quadri Syed , Karthik Anantharaman , Mohamed L. Haidara , Shashikant Tiwari , Sree Ram Kodali , Sridhar Prakasam , Vijay Venkataraman
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for mitigation of secondary cell failures. A user equipment (UE) may establish communication with a macro cellular base station. The UE may perform a signal quality measurement of a small cell base station and compare the signal quality measurement to a threshold. Based on the signal quality measurement exceeding the threshold, the UE may attempt to additionally connect to the small cell base station. In response to a radio link failure of the second base station, the UE may modify the first threshold. In response to subsequent failures to additionally connect to the small cell base station using the modified first threshold, the UE may disable connections to the small cell base station.
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公开(公告)号：US20220159539A1
公开(公告)日：2022-05-19
申请号：US16952435
申请日：2020-11-19
Applicant: Apple Inc.
Inventor： Nihar Garg , Ehsan Ahmed Quadri Syed , Karthik Anantharaman , Mohamed L. Haidara , Shashikant Tiwari , Sree Ram Kodali , Sridhar Prakasam , Vijay Venkataraman
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for mitigation of secondary cell failures. A user equipment (UE) may establish communication with a macro cellular base station. The UE may perform a signal quality measurement of a small cell base station and compare the signal quality measurement to a threshold. Based on the signal quality measurement exceeding the threshold, the UE may attempt to additionally connect to the small cell base station. In response to a radio link failure of the second base station, the UE may modify the first threshold. In response to subsequent failures to additionally connect to the small cell base station using the modified first threshold, the UE may disable connections to the small cell base station.
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公开(公告)号：US20210345185A1
公开(公告)日：2021-11-04
申请号：US16863522
申请日：2020-04-30
Applicant: APPLE INC.
Inventor： Sree Ram Kodali , Farouk Belghoul , Shashikant Tiwari , Sridhar Prakasam , Vijay Venkataraman
Abstract: Re-connecting to a first radio access network (RAN) of a first radio access technology (RAT) may include initially connecting to the first RAN. A connection associated with a voice call may then be connected that includes connecting to a RAN of a second RAT. In response to the voice call connecting to the second RAN, information for both a frequency and a cell associated with connecting to the first RAN may be stored. An end to the voice call may be identified. In response to determining that the voice call has ended, a timer may be generated at the UE that comprises a specified time period and the timer and the information stored for both the frequency and the cell associated with connecting to the first RAN may be utilized to re-connect to the first RAN.
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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
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.
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