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公开(公告)号:US11387949B2
公开(公告)日:2022-07-12
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:US20200100177A1
公开(公告)日:2020-03-26
申请号:US16217357
申请日:2018-12-12
Applicant: Apple Inc.
Inventor: Sanjeevi Balasubramanian , Shiva Krishna Narra , Anjaneyulu Maganti , Tarik Tabet , Lydi Smaini , Dhruv Khati , Mohit Narang , Tiberiu Muresan
Abstract: In a method of device-to-device communication, efficient power management is provided when a primary device has a low battery level. The primary device can send synchronization signals and discovery messages to secondary devices by looping through a sequence of transmit power values in a sequence of consecutive frames, where the sequence of transmitting values includes a default power value and a reduced power value.
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公开(公告)号:US09736792B2
公开(公告)日:2017-08-15
申请号:US14861891
申请日:2015-09-22
Applicant: Apple Inc.
Inventor: Sanjeevi Balasubramanian , Ruben Caballero , Ricardo R. Velasco
CPC classification number: H04W52/30 , G08B21/182 , H04W52/22 , H04W52/281 , H04W52/367
Abstract: A method implemented on a mobile device that starts by receiving a temperature reading from a sensor included on the mobile device. The temperature reading is compared to a threshold temperature and a power cap is set when the temperature reading is greater than the threshold temperature. The power cap is a maximum transmission power of the mobile device. The method then determines if the mobile device is transmitting a critical message. The power cap is released for a period of time if the power cap is set and the mobile device is determined to be sending a critical message. Other embodiments are also described.
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公开(公告)号:US20250048058A1
公开(公告)日:2025-02-06
申请号:US18364378
申请日:2023-08-02
Applicant: Apple Inc.
Inventor: Krishna Myneni , Dhruv Khati , Anjaneyulu Maganti , Sanjeevi Balasubramanian
Abstract: The present disclosure relates to techniques that may be utilized to transmit radio frequency (RF) signals to an electronic device. A distance that a first electronic device of a plurality of electronic devices is located from a second electronic device of the plurality of electronic devices may be determined. Additionally, that the distance exceeds a first threshold distance may be determined. Whether the first electronic device is communicatively coupled to a cellular network, whether the distance exceeds a second threshold distance that is greater than the first threshold distance, or both are also determined. The RF signals radio frequency (RF) signals to be transmitted to the first electronic device by a satellite based on the first electronic device not being communicatively coupled to the cellular network, the distance exceeding the second threshold, or both.
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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:US20240022926A1
公开(公告)日:2024-01-18
申请号:US18357656
申请日:2023-07-24
Applicant: Apple Inc.
Inventor: Alosious Pradeep Prabhakar , Wen Zhao , Lakshmi N. Kavuri , Li Su , Sagar B. Shah , Sriram Subramanian , Vijay Venkataraman , Vishwanth Kamala Govindaraju , Shiva Krishna Nana , Sanjeevi Balasubramanian , Wei Zhang , Madhukar D. Shanbhag , Sandeep K. Sunkesala , Srinivasan Nimmala , Muthukumaran Dhanapal , Tarakkumar G. Dhanani , Sree Ram Kodali , Ioannis Pefkianakis , Dhruv Khati , Franco Travostino , Thanigaivelu Elangovan , Madhusudan Chaudhary , Geoffrey R. Hall
Abstract: This disclosure relates to methods and devices for mitigating overheating in a user equipment device (UE). The UE is configured to communicate over each of LTE and 5G NR and may be configured to communicate through 5G NR over each of a Sub-6 GHz and a millimeter Wave (mmW) frequency band. The UE is configured to establish an ENDC connection with an enB and one or more gNBs. The UE implements intelligent transmission modification and cell measurement adjustments to mitigate overheating and reduce battery drain.
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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:US20230146267A1
公开(公告)日:2023-05-11
申请号:US17950742
申请日:2022-09-22
Applicant: Apple Inc.
Inventor: Parvathanathan Subrahmanya , Sharad Sambhwani , Dirk Nickisch , Madhukar K Shanbhag , Rohit U Nabar , Sanjeevi Balasubramanian , Shiva Krishna Narra , Sriram Subramanian , Tarik Tabet , Vishwanth Kamala Govindaraju , Yakun Sun
CPC classification number: H04W76/14 , H04L5/0051 , H04W76/15
Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).
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公开(公告)号:US20230145333A1
公开(公告)日:2023-05-11
申请号:US17941519
申请日:2022-09-09
Applicant: Apple Inc.
Inventor: Dirk Nickisch , Sharad Sambhwani , Dhiraj J Shirke , Madhukar K Shanbhag , Parvathanathan Subrahmanya , Pranav Tripathi , Rohit U Nabar , Sanjeevi Balasubramanian , Shiva Krishna Narra , Sriram Subramanian , Tarik Tabet , Vishwanth Kamala Govindaraju , Yakun Sun
CPC classification number: H04W72/005 , H04W76/30 , H04W76/40
Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).
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公开(公告)号:US20230142162A1
公开(公告)日:2023-05-11
申请号:US17941523
申请日:2022-09-09
Applicant: Apple Inc.
Inventor: Dirk Nickisch , Sharad Sambhwani , Dhiraj J. Shirke , Madhukar K Shanbhag , Parvathanathan Subrahmanya , Pranav Tripathi , Rohit U. Nabar , Sanjeevi Balasubramanian , Shiva Krishna Narra , Sriram Subramanian , Tarik Tabet , Vishwanth Kamala Govindaraju , Yakun Sun
CPC classification number: H04W48/16 , H04W76/10 , H04W4/08 , H04W68/005
Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).
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