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21.
公开(公告)号:US20250112673A1
公开(公告)日:2025-04-03
申请号:US18815622
申请日:2024-08-26
Applicant: Apple Inc.
Inventor: Minghai Feng , Cheng Li , Dikshit Garg , Kexin Ma , Vijay Gadde , Yong Ba , Zhengbo Zhu
IPC: H04B7/0413 , H04L5/00 , H04W52/08 , H04W72/1268
Abstract: Systems and methods described herein may enable user equipment to confirm and/or change a multiple input, multiple output (MIMO) communication configuration selected by a network, such as to change a number of data layers used in the MIMO communication and/or to change one or more antennas used in the MIMO communication. The user equipment may confirm and/or change the MIMO communication configuration based on transmit power levels associated with the one or more antennas, a distance between power amplifiers and respective antennas, or the like, as described herein.
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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:US11991772B2
公开(公告)日:2024-05-21
申请号:US17811366
申请日:2022-07-08
Applicant: APPLE INC.
Inventor: Tarakkumar G. Dhanani , Vijay Ventkataraman , Karan R. Sachdev , Neeraj D. Vaghela , Raghuram Mungara , Sharad Garg , Vijay Gadde
CPC classification number: H04W76/25 , H04B17/318 , H04L5/0051 , H04W24/08 , H04W24/10 , H04W76/27
Abstract: Systems and methods for extending connectivity with a cellular network are disclosed herein. A UE may monitor a serving cell of the UE and a neighbor cell of the UE to determine whether there is a network condition wherein the UE is to transition to an out-of-service (OOS) state if it were to fall to a Radio Resource Control (RRC) Idle state. The UE may react by, before expiration of an inactivity period corresponding to a transition to an RRC Idle mode, initiating signaling activity with a radio access network (RAN) node of the serving cell. In other embodiments, the UE may determine, based on a number of secondary devices connected to the UE, to initiate signaling with the RAN node of the serving cell before expiration of an inactivity period and according to whether a maximum number of extensions of an extension activity period has been reached.
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公开(公告)号:US20240073979A1
公开(公告)日:2024-02-29
申请号:US18447595
申请日:2023-08-10
Applicant: Apple Inc.
Inventor: Tarakkumar G Dhanani , Vijay Gadde , Vijay Venkataraman , Sharad Garg , Rohit Thareja , Sanjeevi Balasubramanian
CPC classification number: H04W76/14 , H04W64/006
Abstract: Smart vehicle-to-everything (V2X) preemptive connections for emergency and/or potential accident scenarios. A V2X-enabled vehicle may determine a current route of the vehicle and high-risk areas through which the vehicle may travel (e.g., a hospital zone, high pedestrian traffic area, etc.). The vehicle may determine a distance (d) from a beginning of the high-risk area and begin establishing a V2X connection upon reaching the determined distance. The V2X-enabled vehicle may also, or alternatively, pre-emptively establish a V2X connection upon detecting an event initiative of an emergency, a hazardous situation, or a potential emergency. Examples of such events may include a sharp turn, a vehicle speed exceeding a speed threshold, a sudden acceleration or declaration, etc. A preemptive V2X connection may, for example, enable vehicles to begin communicating with one another faster in case of a threat, emergency, or unsafe conditions for vehicles in the area.
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公开(公告)号:US20230397095A1
公开(公告)日:2023-12-07
申请号:US17830194
申请日:2022-06-01
Applicant: Apple Inc.
Inventor: Bharath Jayaram , Ajoy K. Singh , Vijay Gadde , Sharad Garg , Vijay Venkataraman , Sandeep K. Sunkesala , Sanjeevi Balasubramanian , Vijendrakumar K. Ashiwal
Abstract: A device executing a low-latency application that uses a Wi-Fi link may switch from the Wi-Fi link to using a second link to a multi-subscriber (MSIM) PHS device. The device may access, via the second link, any one of multiple cellular links, each cellular link corresponding to a different respective cellular subscription of multiple subscriptions used by the PHS device. The application executing on the device may thus use a preferred cellular link from among the multiple cellular links. The preferred cellular link may be determined based on parameters corresponding to the plurality of cellular links for each respective cellular subscription. The parameters may be obtained from a location database. The preferred cellular link (which may presently correspond to a primary subscription) on the PHS device may be switched to be a different cellular link (which may correspond to a non-primary subscription) during execution of the application on the device.
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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
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.
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公开(公告)号:US20220346177A1
公开(公告)日:2022-10-27
申请号:US17811366
申请日:2022-07-08
Applicant: APPLE INC.
Inventor: Tarakkumar G. Dhanani , Vijay Ventkataraman , Karan R. Sachdev , Neeraj D. Vaghela , Raghuram Mungara , Sharad Garg , Vijay Gadde
Abstract: Systems and methods for extending connectivity with a cellular network are disclosed herein. A UE may monitor a serving cell of the UE and a neighbor cell of the UE to determine whether there is a network condition wherein the UE is to transition to an out-of-service (OOS) state if it were to fall to a Radio Resource Control (RRC) Idle state. The UE may react by, before expiration of an inactivity period corresponding to a transition to an RRC Idle mode, initiating signaling activity with a radio access network (RAN) node of the serving cell. In other embodiments, the UE may determine, based on a number of secondary devices connected to the UE, to initiate signaling with the RAN node of the serving cell before expiration of an inactivity period and according to whether a maximum number of extensions of an extension activity period has been reached.
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公开(公告)号:US20210185620A1
公开(公告)日:2021-06-17
申请号:US17188585
申请日:2021-03-01
Applicant: Apple Inc.
Inventor: Digvijay Arjunrao Jadhav , Indranil S. Sen , Jonathan C. King , Mohit Narang , Prathyusha Sangepu , Qiong Wu , Shrenik Milapchand , Vijay Gadde , Yu Chen
IPC: H04W52/26
Abstract: Multi-radio wireless network devices are capable of transmitting and/or receiving data from multiple radiofrequency (RF) networks at different bands. Total transmission power limitations may be in place due to, for example, safety reasons. As a result, active management of transmission power may be performed during simultaneous transmission in different bands and/or networks. In some embodiments, the management may take place on group-by-group basis and a network-by-network basis. Antennas may be grouped based on their relative positions and impact on radiation emitted by the devices.
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公开(公告)号:US20210050946A1
公开(公告)日:2021-02-18
申请号:US16902656
申请日:2020-06-16
Applicant: Apple Inc.
Inventor: Sriram Subramanian , Tarakkumar G. Dhanani , Shiva Krishna Narra , Sharad Garg , Vijay Gadde , Madhukar K. Shanbhag , Sandeep K. Sunkesala , Sree Ram Kodali , Haitong Sun , Sanjeevi Balasubramanian , Vishwanth Kamala Govindaraju , Wei Zhang , Wei Zeng , Dawei Zhang , Yuchul Kim , Hong He , Alosious Pradeep Prabhakar
Abstract: This disclosure relates to methods and devices for transmitting acknowledgment messages on a preferred cell in a carrier aggregation scenario. A user equipment device (UE) establishes a connection with a primary cell and one or more secondary cells, and determines a preferred cell from among the primary cell and the one or more secondary cells based at least in part on one or more quality metrics. The UE may determine the preferred cell at least in part in response to determining that transmission power of the UE has been limited due to a specific absorption rate (SAR) backoff feature of the UE. The UE transmits a notification to a network indicating that the UE intends to transmit an acknowledgement message to the preferred cell, and transmits the acknowledgment message to the preferred cell.
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公开(公告)号:US20220418026A1
公开(公告)日:2022-12-29
申请号:US17901057
申请日:2022-09-01
Applicant: Apple Inc.
Inventor: Fangli Xu , Wen Zhao , Sachin J. Sane , Sagar B. Shah , Muthukumaran Dhanapal , Sriram Subramanian , Madhukar K. Shanbhag , Vishwanth Kamala Govindaraju , Sandeep K. Sunkesala , Tarakkumar G. Dhanani , Sree Ram Kodali , Vijay Gadde , Shiva Krishna Narra , Sharad Garg , Sanjeevi Balasubramanian , Dawei Zhang , Haijing Hu , Rajesh Ambati
Abstract: Apparatuses, systems, and methods for a wireless device to perform negotiation of bearer type configuration and/or related parameters. A user equipment device (UE) and/or network may determine a bearer configuration and/or other parameters based on information or measurements of the UE. The UE and the BS may exchange data using a negotiated configuration.
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