Abstract: A method for warning a wearer of a pacemaker against potential electromagnetic interference by a radar-aided mobile device is provided. The method includes obtaining sensor data from a sensor of an electronic device. The method includes detecting electromagnetic interference (EMI) risk based on the sensor data obtained. The method includes determining whether a condition for executing an EMI risk mitigation function is satisfied, based on the detected EMI risk. The method includes, in response to determining that the condition for executing the EMI risk mitigation function is satisfied, performing the EMI risk mitigation function. In some embodiments, performing the EMI risk mitigation function includes at least one of: adjusting a radio frequency (RF) transmit power; and outputting an alert that warns a user of the electronic device about a pacemaker in relation to the detected EMI risk.

Abstract: A method includes obtaining a stream of radar data into a sliding input data window composed of recent radar frames from the stream. Each radar frame within the data window includes features selected from a predefined feature set and at least one of time-velocity data or time angle data. The method includes, for each radar frame within the data window, receiving a binary prediction indicating whether the radar frame includes a gesture end. The method includes in response to the binary prediction indicating that the radar frame includes the gesture end, triggering an early stop (ES) checker to determine whether an ES condition is satisfied. Determining whether the ES condition is satisfied comprises determining whether a noise frames condition and a valid activity condition are satisfied. The method includes in response to a determination that the ES condition is satisfied, triggering a gesture classifier to predict a gesture type.

Abstract: A method includes determining whether to activate one or more radar modules of a user equipment (UE) based on whether the UE performs initial access or beam failure recovery. The method also includes, in response to determining that the one or more radar modules are to be activated: activating all of the one or more radar modules in a time sequence, one or multiple radar modules at a time; determining a power backoff for at least one communication module of the UE; and determining a UE uplink (UL) beam, a UE downlink (DL) beam, a base station (BS) UL beam, and a BS DL beam based on the power backoff and a sweeping of beams of the UE. The sweeping occurs for the beams of the UE that have a power backoff that is less than a threshold.

Abstract: A method includes obtaining a target distance and target velocity for each radar frame within a sliding input data window. Each radar frame within the data window includes extracted features. The method includes determining a dynamic threshold distance (dth) for a range of distances wherein performance of a gesture is valid. The method includes determining whether the target distance corresponding to a current radar frame satisfies a proximity condition based on the dth. The method includes in response to a determination the proximity condition is not satisfied, detecting a start of activity based on the extracted features. The method includes segmenting gesture frames from non-gesture frames in the data window, in response to at least one of: a determination the first proximity condition is satisfied, or a determination the current radar frame includes an end of the activity. The method includes discarding the non-gesture frames to modify the data window.

Abstract: A method includes, during operation of a proximity-detection module of an electronic device: determining a distance, velocity, and angle of a target relative to the electronic device based on radar data obtained from a radar transceiver of the electronic device; adjusting a configuration of the radar transceiver based on at least one of the distance, velocity, or angle of the target; and while at least one of the distance, velocity, or angle is greater than a respective threshold, repeating the determining and adjusting operations. The method also includes, in response to determining that each of the distance, velocity, and angle is less than its respective threshold, determining whether at least one wake-up trigger for gesture-based commands is detected. The method further includes, in response to determining that the at least one wake-up trigger for gesture-based commands is detected, triggering operation of a gesture-recognition module of the electronic device.

Abstract: A method for end-to-end dynamic gesture recognition using mmWave radar is provided. The method includes triggering an electronic device to activate a gesture recognition mode in response to detecting that a condition for activating the gesture recognition mode is satisfied. The method includes obtaining radar data while the gesture recognition mode is activated, wherein the radar data includes time-velocity data (TVD). The method includes detecting a start and an end of a gesture based on the TVD of the obtained radar data. To classify the gesture, the method includes determining a gesture, from among a set of gesture, that corresponds to a portion of the TVD between the start and the end of the gesture. The method includes outputting an event indicator indicating that a user of the electronic device performed the gesture classified.

Abstract: An electronic device and methods for performing beam management in the electronic device are disclosed herein. An electronic device performing beam management comprises a plurality of antenna modules and a processor. The processor is configured to determine at least two objectives for beam management of the plurality of antenna modules, select at least one parameter for the beam management based on the determined at least two objectives, and perform the beam management on the plurality of antenna modules based on the selected at least one parameter.

Abstract: A method for radio frequency (RF) exposure management includes determining whether to use radar for RF exposure level management due to RF transmission from the electronic device. In response to determining to use radar for the RF exposure level management, the method includes transmitting the radar signals for object detection. The method also includes identifying available power for the communication signals based on an identified RF exposure level of an object detected by the radar signals. The method further includes transmitting the communication signals for wireless communication at a power level that: (i) does not exceed the available power when using radar for the RF exposure management or (ii) is based on a predefined scenario corresponding to a body part being within a proximity to the electronic device in response to a determination to not use radar for the RF exposure level management.

Abstract: A method for operating an electronic device having a plurality of antenna modules, wherein at least one of the plurality of antenna modules is a serving module, comprises: triggering a module sweeping operation based on one or more of: a reference signal receive power (RSRP) of the serving module being below a dynamic, time-varying threshold; the RSRP of the serving module being lower than an average RSRP of the serving module when the electronic device is at a same location; an estimated angle of arrival of a beam being on an edge or outside of a coverage area of the serving module; inertial measurement unit (IMU) sensors indicating that the electronic device has rotated; or the RSRP of the serving module cannot support a predicted data requirement.

Abstract: A user equipment (UE) is configured to vary a number of chains in uplink or downlink communications with a base station (BS). The UE includes a processor coupled to a transceiver. The processor is configured to: identify a full-chain beam for a downlink reception based on a beam sweeping; determine a number of activated chains for an uplink transmission; and determine a sub-chain uplink transmission beam.

Abstract: A method for allocating power of an electronic device, includes generating a power budget indicating an amount of available power for signal transmission and reception. The method also includes determining whether to prioritize communication signals or radar signals for allocating the available power of a battery. In response to a determination to prioritize the communication signals, the method includes allocating a first portion of the available power for the communication signals and a second portion of the of the available power for the radar signals. In response to a determination to prioritize the radar signals, the method includes allocating the first portion of the available power for the radar signals and the second portion of the of the available power for the communication signals. The method further includes transmitting the communication signals and the radar signals based on the allocation.

Abstract: An electronic device and methods for performing beam management (BM) in systems with antenna arrays capable of operating in combined radar and communication modes are disclosed herein. The electronic device comprises a processor and a plurality of antenna elements configured to operate in a first mode, in which the antenna elements are used for communications with beamforming, and a second mode, in which at least two of the antenna elements are used for radar and the remainder are used for the communications. The processor is configured to perform a mode switch on the antenna elements to switch between the first mode and the second mode, determine, after the mode switch, a new beam to use during a first BM cycle, perform, using the new beam, the first BM cycle to obtain signal quality measurements, and perform a second BM cycle using an updated beam based on the signal quality measurements.

Abstract: A method for exposure level estimation, includes transmitting radar signals for object detection and communication signals for wireless communication operations. The method also includes identifying a location of an object relative to the electronic device within a first time duration based on the radar signals, the first time duration including a previous time until a current time. The method further includes determining a radio frequency (RF) exposure measurement associated with the object based on the location of the object over the first time duration. Additionally, the method includes determining a power density budget over a second time duration based on a comparison of the RF exposure measurement to an RF exposure threshold, the second time duration including the current time until a future time. The method also includes modifying the wireless communication operations for the second time duration based on the power density budget.

Abstract: An electronic device and methods for performing low-latency, low-power beam management are disclosed herein. An electronic device for performing low-latency, low-power beam management comprises a plurality of antenna modules and a processor. The processor is configured to determine a number of active antenna modules to include in a set of active antenna modules, and select the set of active antenna modules, from among the plurality of antenna modules, based on a spherical coverage of the set of active antenna modules and based on information on blockage states of the plurality of antenna modules.

Abstract: A method includes transmitting, via a transceiver, radar signals for object detection. The method includes determining whether a moving object is detected using received reflections of the radar signals corresponding to a current radar frame. In response to a determination that no moving object is detected using the current radar frame, the method includes determining whether a moving object is detected using received reflections of the radar signals corresponding to multiple radar frames. The method also includes generating a detection result indicating that (i) no moving object is detected using the multiple radar frames or (ii) the moving object is detected using either the current radar frame or the multiple radar frames.

Abstract: A method for radar full blockage detection includes transmitting, via a transceiver, radar signals for object detection. The method also includes determining whether an object is detected within a first threshold distance based on reflections of the radar signals that are received. In response to a determination that the object is detected within the first threshold distance, the method includes determining whether the object is detected beyond a second threshold distance, based on the reflections of the radar signals. The second threshold distance is further away from the electronic device than the first threshold distance. In response to determining that the object is within the first threshold distance and not detected beyond the second threshold distance, the method includes determining that the transceiver is fully blocked by the object. upon a determination that the transceiver is fully blocked, the method includes modifying a wireless communication operation associated with the transceiver.

Abstract: A method and a wireless communication device for managing activation of radar modules in the device are disclosed herein. The device comprises a plurality of wireless communication modules, a plurality of radar modules, and a processor. The wireless communication modules comprise one or more antennas that are configured to transmit and receive wireless communication signals, and the radar modules comprise one or more antennas that are configured to transmit and receive radar signals. The processor is configured to determine which of the wireless communication modules are active, obtain spatial information comprising spatial positions within the device of the wireless communication modules and the radar modules, determine one or more transmission characteristics of the active wireless communication modules and the radar modules, determine a set of the plurality of radar modules to activate based on the spatial information and the transmission characteristics, and activate the determined set of radar modules.

Abstract: An electronic device includes a processor operably connected to a radar transceiver. The processor is configured to transmit, via the radar transceiver, radar signals to detect an object. The processor is also configured to detect the object using a single radar frame or multiple radar frames from the radar signals. The processor is further configured to determine whether to use the single radar frame or the multiple radar frames based on motion of the object for angle identification between the object and the electronic device. Additionally, the processor is configured to identify the angle using the single radar frame based on a determination to use the single radar frame or the multiple radar frames based on a determination to use the multiple radar frames. The processor is also configured to modify radio frequency exposure levels based on the angle of the object relative to the electronic device.

Abstract: An electronic device and methods for performing beam management (BM) in systems with antenna arrays capable of operating in combined radar and communication modes are disclosed herein. The electronic device comprises a processor and a plurality of antenna elements configured to operate in a first mode, in which the antenna elements are used for communications with beamforming, and a second mode, in which at least two of the antenna elements are used for radar and the remainder are used for the communications. The processor is configured to perform a mode switch on the antenna elements to switch between the first mode and the second mode, determine, after the mode switch, a new beam to use during a first BM cycle, perform, using the new beam, the first BM cycle to obtain signal quality measurements, and perform a second BM cycle using an updated beam based on the signal quality measurements.

Abstract: An electronic device and methods for performing beam management in the electronic device are disclosed herein. An electronic device performing beam management comprises a plurality of antenna modules and a processor. The processor is configured to determine at least two objectives for beam management of the plurality of antenna modules, select at least one parameter for the beam management based on the determined at least two objectives, and perform the beam management on the plurality of antenna modules based on the selected at least one parameter.