Abstract: A method includes determining, based at least in part on parameters of a software defined radio (SDR), waveform data descriptive of an electromagnetic waveform. The method also includes obtaining sensor data distinct from the waveform data. The method further includes generating feature data based on the sensor data and the waveform data and providing the feature data as input to a first machine learning model and initiating a response action based on an output of the first machine learning model.

Abstract: A radio frequency package includes a first portion of an antenna array module, a second portion of the antenna array module, and a flexible cable. The first portion of the antenna array module provides a first wireless communication functionality and the second portion of the antenna array module provides a second wireless communication functionality. The flexible cable includes first surface directly coupled to the first portion of the antenna array module. The flexible cable also includes a second surface directly coupled to the second portion of the antenna array module. The flexible cable communicates signals between the first portion of the distributed antenna array module and the second portion of the antenna array module.

Abstract: An electronic device is provided. The electronic device includes a housing including a side member, a support member, a display, an antenna module including one or more patch antennas, a printed circuit board (PCB), a wireless communication circuit disposed on the PCB, a first conductive member, a first connector, a second connector, and a protrusion extending from the first end of the first conductive member toward an interior of the housing, and electrically connected to the first conductive member. The antenna module is disposed at locations corresponding to a first opening defined by the first conductive member, the support member, the first connector, and the second connector, and a second opening defined by the first conductive member, the support member, the first connector, and the protrusion, and the wireless communication circuit is electrically connected to the protrusion and the antenna module.

Abstract: This application describes methods and apparatus to allocate uplink (UL) power dynamically across multiple parallel radio frequency links for wireless devices. The wireless device sets an initial maximum transmit power level (MTPL) for each UL radio link of multiple radio links used for UL traffic based on a duty cycle prediction for the respective UL radio link. The wireless device adjusts the initial MTPL for each UL radio link based on a predicted data throughput for the UL radio link relative to a total predicted data throughput for all UL radio links. The adjusted MTPL for each UL radio link can be also reduced when the UL radio link uses UL multiple input multiple output (MIMO) transmission via multiple antenna ports, e.g., by apportioning the adjusted MTPL among the multiple antenna ports of the UL radio link equally.

Abstract: A first UE and a second UE may exchange information relating to one or more machine learning data services. The one or more machine learning data services may be provided by the second UE. The first UE and the second UE may pair with each other for the one or more machine learning data services. The second UE may perform machine learning inference using at least one machine learning inference model, and may transmit the inference result (e.g., a link quality prediction) associated with a link between a network node and the first UE to the network node. The network node may switch (the direction of) the network node beam if the inference result predicts that the degree of link quality degradation associated with a current network node beam is going to be greater than a prespecified threshold.

Abstract: Aspects of this disclosure relate to multiplexers with that include an acoustic wave resonator. The acoustic wave filter includes a plurality of acoustic wave resonators of a first type and a shunt acoustic wave resonator of a second type. The shunt acoustic wave resonator of the second type has lower second harmonic distortion than the acoustic wave resonators of the first type. The shunt acoustic wave resonator of the second type has a resonant frequency in a passband of another filter of the multiplexer. Related radio frequency modules, wireless communication devices, and methods are also disclosed.

Abstract: An electronic device may include wireless circuitry having digital-to-analog converters, filters, mixers, and current buffers disposed between the filters and the mixers. The current buffers may provide proper resistance termination for the filters. The current buffers may include current mirrors formed from diode-connected n-type transistors and diode-connected p-type transistors, which collectively provide a linear input resistance. The current mirrors may receive a high voltage from a voltage regulator having a replica current mirror and proportional-to-absolute-temperature current sources.

Abstract: According to an aspect, there is disclosed a method that includes aligning, by a radio access network node wirelessly connected to at least two parent nodes and to a child node, an uplink reception timing associated with the child node with a downlink reception timing associated with a parent node of the at least two parent nodes.

Abstract: A control method for a mobile terminal is disclosed, applicable to a mobile terminal including at least one screen, where the screen has at least one bending part or is foldable to form at least one bending part. The control method includes: detecting a holding gesture on the mobile terminal; and setting a first effective touch region and a first ineffective touch region corresponding to the holding gesture on the bending part.

Abstract: Low noise amplifiers (LNAs) are disclosed herein. In certain embodiments, an LNA includes an input balun configured to convert a single-ended radio frequency (RF) receive signal to a differential RF receive signal, an amplifier chain configured to amplify the differential RF receive signal to generate a differential amplified RF receive signal, and an output balun configured to convert the differential amplified RF receive signal into a single-ended amplified RF receive signal. The LNA's amplifier chain is operable in multiple gain modes, and includes a first differential amplification stage, a second differential amplification stage, and a third differential amplification stage.

Abstract: Mobility-as-a-Service (MaaS) provides technical solutions for technical problems facing this shift toward public and private vehicles for hire, including providing a platform for users to identify and select public transportation and private vehicles for hire. Users may plan and book transportation services through a MaaS platform, such as a smartphone application. Technical solutions described herein include improved identification and selection of a vehicle based on wireless communication, such as using Near-Field Communication (NFC), Bluetooth, Wi-Fi, and other wireless communication.

Abstract: In certain aspects, a method implemented in a wireless device includes determining a specific absorption rate (SAR) distribution for a first wireless communication technology, determining a power density (PD) distribution for a second wireless communication technology, and combining the SAR distribution and the PD distribution to generate a combined RF exposure distribution. The method also includes determining at least one first maximum allowable power level and at least one second maximum allowable power level for a future time slot based on the combined RF exposure distribution, setting at least one transmission power limit for a first transmitter in the future time slot based on the at least one first maximum allowable power level, and setting at least one transmission power limit for a second transmitter in the future time slot based on the at least one second maximum allowable power level.

Abstract: Systems, methods and apparatus are disclosed for automatic signal detection in an RF environment. An apparatus comprises at least one receiver and at least one processor coupled with at least one memory. The apparatus is at the edge of a communication network. The apparatus sweeps and learns the RF environment in a predetermined period based on statistical learning techniques, thereby creating learning data. The apparatus forms a knowledge map based on the learning data, scrubs a real-time spectral sweep against the knowledge map, and creates impressions on the RF environment based on a machine learning algorithm. The apparatus is operable to detect at least one signal in the RF environment.

Abstract: Systems, methods and apparatus are disclosed for automatic signal detection in an RF environment. An apparatus comprises at least one receiver and at least one processor coupled with at least one memory. The apparatus is at the edge of a communication network. The apparatus sweeps and learns the RF environment in a predetermined period based on statistical learning techniques, thereby creating learning data. The apparatus forms a knowledge map based on the learning data, scrubs a real-time spectral sweep against the knowledge map, and creates impressions on the RF environment based on a machine learning algorithm. The apparatus is operable to detect at least one signal in the RF environment.

Abstract: The present disclosure generally relates to key fobs and menu access authorization for control panels via pairing with user devices. In exemplary embodiments, a method generally includes pairing a user device (e.g., smartphone, Bluetooth-enabled device, etc.) to a control panel (e.g., engine control panel, etc.) such that the user device is operable as or similar to a key fob for the control panel. After the initial pairing and entry of the user's menu access level PIN into the control panel, the control panel will thereafter automatically power up or wake up, pair with the user device, and grant menu access level rights based on the previously entered user's menu access level PIN when the user device is within range of the control panel and/or the user device manually connects with the control panel.

Abstract: A device includes a first compensation circuit configured to adjust an analog front end (AFE) output to generate a first adjusted AFE output, a first data slicer configured to output a first voltage based on the first adjusted AFE output. The first compensation circuit includes a first path between a voltage source and a ground, including a first transistor, a first adjustable current source, a first input voltage node configured to receive the AFE output, and a first output voltage node coupled to the first data slicer, a second path between the voltage source and the ground, including a second transistor, a second adjustable current source, a second input voltage node configured to receive the AFE output, and a second output voltage node coupled to the second data slicer, and a configurable resistance resistor and a configurable capacitance capacitor coupled in parallel across the first path and the second path.

Abstract: The present disclosure discloses a management system, including a beacon tag device, a docking station device, and a backend server. The beacon tag device includes a wireless communication chip and a processor. The wireless communication chip is configured to send a beacon signal. The docking station device includes an interface, a sensor, a wireless sensor network transceiver circuit, a wireless network transceiver circuit, and a control circuit. The backend server is communicatively connected to the docking station device. When the sensor receives the beacon signal, the control circuit determines whether the RSSI of the beacon signal is greater than a beacon strength threshold. If yes, the docking station device sends a sign-in/sign-out signal to the backend server.

Abstract: A near-field communication antenna includes a conductive plane; and four slots in the conductive plane.

Abstract: The present disclosure relates to methods, devices and software that can be used for preventing damage to RF front end equipment used in wireless communication systems. In some aspects, a user equipment (UE) may establish a first communication having a first priority, wherein the first communication is associated with a first subscriber in a connected mode. The UE may establish a second communication having a second priority, wherein the second communication is associated with a second subscriber in the connected mode. The UE may identify a state of a transmit/receive (TRX) switch shared between the first communication and the second communication. The UE may perform, based at least in part on the state of the TRX switch, at least one of the first communication or the second communication using a TRX switching configuration.

Abstract: The present invention provides an improved network architecture which allows for many unique and specific interactions between LoRa networked devices, while still maintaining the security, range and low energy benefits of LoRa and LoRaWAN networks.