H04B1/3838

Electronic Devices with Hierarchical Management of Radio-Frequency Exposure

An electronic device may include a first set of radios subject to a specific absorption rate (SAR) limit and a second set of radios subject to a maximum permissible exposure (MPE) limit over an averaging period. Control circuitry may dynamically adjust radio-frequency (RF) exposure metric budgets provided to the radios over the averaging period, based on feedback reports from the radios identifying the amount of SAR and MPE consumed by the radios during different subperiods of the averaging period. The control circuitry may distribute and adjust SAR budgets and MPE budgets across the radios based on the feedback reports, distribution policies, radio statuses, transmit activity factors, and/or usage ratios associated with the radios. This may provide efficient utilization of the total available SAR and MPE budget, thereby leading to increased uplink coverage and throughput relative to scenarios where the SAR and MPE budgets remain static.

Systems, methods, and devices for managing coexistence of multiple transceiver devices by optimizing component layout
09794522 · 2017-10-17 · ·

A camera assembly includes an enclosed housing having a rear surface, a front surface, and a periphery. The camera assembly also includes a lens module located within the housing and configured to receive light via the front surface, and a circuit board comprising communication circuitry located within the housing and configured to wireless communicate over a plurality of different communication protocols. The camera assembly further includes a first antenna arranged at a location on the circuit board, the first antenna configured for communication over a first one of the communication protocols, and a second antenna arranged at a location on the inner surface of the periphery, the second antenna configured for communication over a second one of the communication protocols.

Beverage dispensing system with beacon transmitter and system for selective presentation of predetermined content
09821995 · 2017-11-21 · ·

The present system provides a beverage dispensing assembly having a radio transmitter, wherein a personal communication device having associated software receives content from a remote content management system in response to a signal from the transmitter being received at the personal communication device. The radio transmitter may be in a retaining cavity of an extender assembly which is positioned between a faucet and a tap handle of the beverage dispensing assembly.

Radiation alleviation
09787344 · 2017-10-10 · ·

In some examples, a mobile device includes a radiation sensor configured to measure an amount of radiation surrounding a corresponding device that is communicatively connected to a second device and/or a third device, a comparator configured to compare the measured amount of radiation to a predetermined radiation threshold, a wireless communication manager configured to report to the second device and/or the third device a result output from the comparison module, and a collaboration manager configured to collaborate with the second device.

WIRELESS COMMUNICATION SYSTEM WITH MULTI-MODE CAVITY ANTENNAS

An antenna system for implementation in a wireless communication system such as a mobile device, and a wireless communication system employing such an antenna system, and a related methodology, are disclosed herein. In one example embodiment, a mobile device includes a display, a chassis, and one or more electrical components. The display is provided along a front surface of the mobile device, and the chassis has first and second cavities provided along a rear surface of the mobile device, the rear surface being substantially opposite the front surface. Further, the one or more electrical components is or are supported in between the display and the chassis, and the one or more electrical components provide excitation signals to one or both of the first and second cavities so as to cause electrical fields in accordance with a plurality of modes to occur respectively within the cavities at multiple frequencies, respectively.

METHOD FOR LIMITING UPLINK TRANSMISSION POWER RADIATION AND RELATED PRODUCT
20220053429 · 2022-02-17 ·

Disclosed in embodiments of the present disclosure are a method for limiting uplink transmit power radiation and a related device. The method is applied to a HPUE supporting a DC mode. The DC mode refers to dual connectivity based on a DC frequency band combination. The DC frequency band combination comprises a Long Term Evolution (LTE) frequency band and a New Radio (NR) frequency band. The method includes: determining a transmit power radiation limitation policy of the HPUE in the DC mode; and adjusting an uplink transmission configuration of the HPUE according to the transmit power radiation limitation policy. The uplink transmission configuration includes a TDM pattern for the DC frequency band combination or a maximum uplink duty cycle of at least one of the LTE frequency band or the NR frequency band in the DC frequency band combination.

Determining transmit power limits using a combined specific absorption measurement for multiple transmitters

A method and apparatus for determining transmit power limits for multiple transmitter devices is provided. The method begins when a two-dimensional area scan and a localized three-dimensional volume scan are performed for each transmitter and antenna. These two-dimensional area scans are converted to a three-dimensional full volume data using analytical estimations to determine the peak averaged SAR value, and subsequently determining the error associated with the analytical estimation. The error associated with the analytical estimation is determined by comparison with the measured value. The combined peak averaged SAR may then be determined for simultaneous transmissions of multiple transmitters with varying transmit powers by combining the scaled and analytically determined three-dimensional full volume data for each transmitter. The value is then further scaled by the worst-case conversion error for all active transmitters. This value is compared with the SAR limit and the maximum allowable transmit power determined for the multiple transmitters.

ELECTRONIC DEVICE
20170279475 · 2017-09-28 · ·

An electronic device is to be worn by a user and includes an antenna and a storage compartment that stores the antenna. In a state of the electronic device being worn by the user, the storage compartment is positioned at a side of the user's head. The antenna is capable of selectively adopting a stored state and a deployed state, the antenna being stored in the storage compartment in the stored state, and a greater portion of the antenna being separated from the storage compartment in the deployed state than in the stored state.

ELECTRONIC DEVICE

An electronic device (eyeglasses-type wireless communication device) to be worn by a user includes a wearing section to be worn by the user and an extending section formed in the wearing section and disposed in a direction extending away from the user when the wearing section is worn on the user's head. A first antenna is formed in the extending section.

ELECTRONIC APPARATUS
20170279955 · 2017-09-28 · ·

An electronic apparatus capable of reducing SAR and, simultaneously, performing a radio communication in an excellent manner is provided. To that end, an electronic apparatus to be worn on the user's head for use includes lenses positioned in front of the user's eyes when the electronic device is worn on the user's head and an array antenna configured with a plurality of antennas formed on surfaces of the lenses.