SYSTEM AND METHOD FOR RADIO FREQUENCY (RF) SENSING TO DETERMINE DEVICE PARAMETERS

    公开(公告)号:US20230403086A1

    公开(公告)日:2023-12-14

    申请号:US17839842

    申请日:2022-06-14

    CPC classification number: H04B17/12 H04B17/309

    Abstract: A device for RF sensing includes communication circuitry configured to communicate over an unlicensed frequency band and a licensed frequency band, the communication circuitry configured to transmit a unique signal over the unlicensed frequency band using at least one antenna of the one or more antennas and receive a corresponding return signal from at least one antenna of the one or more antennas, the at least one receiver configured to process the corresponding return signal to determine at least an amplitude and phase (td) of the corresponding return signal, and a look up table (LUT) having characterization information relating to the amplitude and phase (td) of the corresponding return signal, wherein the device is configured to use the characterization information to determine a use state or a gesture of the device and alter at least one operating parameter of the device based on the determined use state or gesture.

    RADIO ARCHITECTURE FOR SWITCHING AMONG TRANSMISSION PATHS

    公开(公告)号:US20230403052A1

    公开(公告)日:2023-12-14

    申请号:US17839921

    申请日:2022-06-14

    CPC classification number: H04B7/0456 H04B1/0483 G06K19/0723

    Abstract: A system for signal processing includes a radio frequency integrated circuit (RFIC) having a plurality of available transmission paths, the RFIC configured to have at least a first communication signal on a first transmission path of the available transmission paths, a plurality of power amplifier/low noise amplifier (PA/LNA) modules selectively connected to the RFIC, each of the PA/LNA modules configured to connect to at least one respective antenna, and switch logic configured to connect the at least first communication signal to any of the plurality of PA/LNA modules prior to power amplification, while preventing the first communication signal from affecting or being affected by another communication signal on another of the plurality of available transmission paths.

    TRANSMIT ANTENNA DIVERSITY IN RADIO FRONT END ARCHITECTURES

    公开(公告)号:US20190097715A1

    公开(公告)日:2019-03-28

    申请号:US16138954

    申请日:2018-09-21

    Abstract: Disclosed aspects relate to methods and apparatus for controlling a wireless device having at least one radio frequency (RF) system. The methods and apparatus are configured to select an antenna for transmission of signals from radio components of the at least one RF system from between a first default antenna normally coupled to the radio components of the at least one RF system for transmission of signals and one of a plurality of other antennas in the wireless device. Further, switching is configured to couple the radio components to one of the other plurality of antennas selected as the antenna for transmission cycles when the radio components are transmitting in an antenna switch diversity (ASDIV) period. Additionally, the methods and apparatus are configured to operate a switch to couple the radio components back to at least the first default antenna during receiving cycles during the ASDIV period.

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