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    ADAPTIVE OPERATION TO MITIGATE SPECULAR REFLECTIONS
    2.
    发明申请
    ADAPTIVE OPERATION TO MITIGATE SPECULAR REFLECTIONS 有权

    公开(公告)号：US20250105908A1

    公开(公告)日：2025-03-27

    申请号：US18974241

    申请日：2024-12-09

    Applicant: Apple Inc.

    Inventor： Dhruv KHATI ,  Shiva Krishna NARRA ,  Sudhir K. BAGHEL ,  Sanjeevi BALASUBRAMANIAN ,  Sebastian Balint SEEBER ,  Anjaneyulu MAGANTI ,  Jeremiah HSU ,  Venkateswara Rao MANEPALLI

    IPC: H04B7/08 ,  G01S19/22 ,  G01S19/42

    Abstract: Methods, devices, and apparatus to adapt operating parameters for satellite signal reception and transmission by a wireless device to mitigate effects of fading due to specular reflections are described herein. The wireless device measures received signal power levels and compares characteristics of the measurements over an observation duration to at least one fading criteria to determine whether to operate in a normal or adaptive mode. While operating in the adaptive mode, the wireless device alternates between high performance mode time periods and low performance mode time periods. The wireless device indicates to a ground station associated with the satellite in which operating mode the wireless device is operating via an uplink data message transmitted during a data cycle at the start of a high or low performance mode time period. The ground station schedules data transmissions accordingly during subsequent data cycles of the high or low performance mode time periods.

    ADAPTIVE OPERATION TO MITIGATE SPECULAR REFLECTIONS
    3.
    发明公开
    ADAPTIVE OPERATION TO MITIGATE SPECULAR REFLECTIONS 审中-公开

    公开(公告)号：US20240022313A1

    公开(公告)日：2024-01-18

    申请号：US18476802

    申请日：2023-09-28

    Applicant: Apple Inc.

    Inventor： Dhruv KHATI ,  Shiva Krishna NARRA ,  Sudhir K. BAGHEL ,  Sanjeevi BALASUBRAMANIAN ,  Sebastian Balint SEEBER ,  Anjaneyulu MAGANTI ,  Jeremiah HSU ,  Venkateswara Rao MANEPALLI

    IPC: H04B7/08 ,  G01S19/22 ,  G01S19/42

    CPC classification number: H04B7/0894 ,  G01S19/22 ,  G01S19/428

    Abstract: Methods, devices, and apparatus to adapt operating parameters for satellite signal reception and transmission by a wireless device to mitigate effects of fading due to specular reflections are described herein. The wireless device measures received signal power levels and compares characteristics of the measurements over an observation duration to at least one fading criteria to determine whether to operate in a normal or adaptive mode. While operating in the adaptive mode, the wireless device alternates between high performance mode time periods and low performance mode time periods. The wireless device indicates to a ground station associated with the satellite in which operating mode the wireless device is operating via an uplink data message transmitted during a data cycle at the start of a high or low performance mode time period. The ground station schedules data transmissions accordingly during subsequent data cycles of the high or low performance mode time periods.

    BATTERY TEMPERATURE MANAGEMENT
    6.
    发明申请
    BATTERY TEMPERATURE MANAGEMENT 有权

    公开(公告)号：US20220344728A1

    公开(公告)日：2022-10-27

    申请号：US17237572

    申请日：2021-04-22

    Applicant: Apple Inc.

    Inventor： Krishna MYNENI ,  Dhruv KHATI ,  Shiva Krishna NARRA ,  Sanjeevi BALASUBRAMANIAN ,  Anjaneyulu MAGANTI

    IPC: H01M10/42 ,  H02J7/00 ,  G06F1/26 ,  G05B15/02 ,  H01M10/48

    Abstract: Systems of the present disclosure include an electronic device that manages operations in low temperature environments for improved battery performance. Such management can be based on a temperature and/or a charge level of a battery of the electronic device. When the temperature of the battery is below a threshold, the components of the electronic device can be operated to generate heat until the temperature of the battery is at or above the threshold temperature. The operations can be selected and performed based on available charge in the battery, the minimum temperature change that would raise the temperature of the battery to a temperature threshold, the available temperature change that would be induced by performing one or more operations, user inputs, and the like. Such heat generation can allow the electronic device to remain on and maintain its operations despite exposure to an external environment that presents low temperatures.

    Efficient PRACH Transmission in a Fallback RACH Procedure
    10.
    发明申请
    Efficient PRACH Transmission in a Fallback RACH Procedure 有权

    公开(公告)号：US20230099913A1

    公开(公告)日：2023-03-30

    申请号：US17822952

    申请日：2022-08-29

    Applicant: Apple Inc.

    Inventor： Pranav TRIPATHI ,  Dhiraj J. SHIRKE ,  Imran Haider G. BALSANIA ,  Sanjeevi BALASUBRAMANIAN

    IPC: H04W74/08 ,  H04W56/00 ,  H04W74/00

    Abstract: A user equipment (UE) is configured to initiate a two-step random access channel (RACH) procedure to synchronize with a base station, initiate a fallback four-step RACH procedure after the two-step RACH procedure, configure a random access preamble transmission for the four-step RACH procedure, wherein configuring the random access preamble transmission comprises deriving a physical random access channel (PRACH) transmit power parameter value based on a parameter used to perform a transmission during the two-step RACH procedure and transmit the random access preamble for the four-step RACH procedure to the base station.

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