A standoff device for assisting in maintaining a handheld portable communications device a predetermined distance away from a user's head. Some embodiments use an electronic or sonic range finder on the communications device to alarm when the device is held too close to the head. Sonic range-finder emissions are preferably at a frequency outside the range of human hearing. The electronic range finder may operate on any safe low power frequency, such as, for non-limiting example, visible light, infrared light, or radio frequency electromagnetic radiation. The standoff device may be attached to or built into the housing of the communications device or may be attached to or built into a case or cover for the communications device.

A method and system is provided that reduces SAR resulting from RF electromagnetic field radiation of mobile communication device that is exposed to the user while holding it next to the ear or carrying it next to the body. Based on the method, a software application will run on the mobile devices that applies safety rules, adapts dynamically to the user's environment and preference during the critical use-cases when the mobile device is held next to the ear or when it is carried next to the body, and when there are strong signals at the user's current location from multiple transmitting systems that include but not limited to WiFi access points and cellular base station.

Various principles and methods are described herein to improve wireless communication in a user computing device. Certain aspects of the disclosure describe management of wireless transmissions relative to various regulations related to a specific absorption rate. Other aspects of the disclosure relate to detection of user proximity to a transmitting antenna. Other aspects relate to alternative strategies to improve wireless communication, such as selection of alternate antennas or baseband modems, or changes in device orientation.

An instantaneous value for the specific absorption rate of user terminal is determined, the instantaneous value is compared to a predetermined threshold; and the voice call and data transfer capabilities of the user terminal are controlled on the basis of the comparison and the call connection and data transfer status of the user terminal.

Techniques are described for wireless communication at a wireless device, such as a base station, a user equipment, a customer premises equipment (CPE), etc. Some such wireless devices may communicate using beamformed transmissions, which may focus transmission energy in a particular direction. In accordance with the described techniques, a wireless device (e.g., which may or may not use beamforming) may detect an object within an energy mitigation area proximate to the wireless device. The wireless device may determine an allowable energy density at the object based at least in part on the object detection. The wireless device may adjust at least one radio frequency (RF) transmission parameter based at least in part on the allowable energy density at the object.

Dynamic power class re-registration of wireless devices is provided. A wireless device can exchange data with a communications network. While exchanging data, the device can monitor its usage and based on the usage, generate a power change request. The device can then send the power change request to the communications network, prior to or in conjunction with powering down the device. In this regard, the communications network can receive the power change request, generate instructions for the wireless device, and adjust network resources based on the power change request. The instructions can then be sent to the wireless device. Since the device re-registers its power class with the communications network, handoffs, internetwork thresholds, network resources and other network parameters can be adjusted to compensate for the changed power class resulting into improved service for a user of the wireless device.

Dynamic power class re-registration of wireless devices is provided. A wireless device can exchange data with a communications network. While exchanging data, the device can monitor its usage and based on the usage, generate a power change request. The device can then send the power change request to the communications network, prior to or in conjunction with powering down the device. In this regard, the communications network can receive the power change request, generate instructions for the wireless device, and adjust network resources based on the power change request. The instructions can then be sent to the wireless device. Since the device re-registers its power class with the communications network, handoffs, internetwork thresholds, network resources and other network parameters can be adjusted to compensate for the changed power class resulting into improved service for a user of the wireless device.

An RF infrastructure sentry system includes one or more sensors configured to detect that an object has entered an area of concern proximate to an RF radiation source and an RF mitigation system operatively connected to the one or more sensors, the RF mitigation system including a communication interface operatively connected via a network to an RF signal source, the RF signal source including an application programming interface (API) for controlling a power of, or interrupting, an RF signal produced by the RF signal source, and a processor operatively connected to the communication interface and configured, at least in response to detection by the one or more sensors that the object has entered the area of concern, to send a first command via the communication interface to the API, the first command configured to temporarily reduce or interrupt the RF signal produced by the RF signal source.

Various principles and methods are described herein to improve wireless communication in a user computing device. Certain aspects of the disclosure describe management of wireless transmissions relative to various regulations related to a specific absorption rate. Other aspects of the disclosure relate to detection of user proximity to a transmitting antenna. Other aspects relate to alternative strategies to improve wireless communication, such as selection of alternate antennas or baseband modems, or changes in device orientation.

Various principles and methods are described herein to improve wireless communication in a user computing device. Certain aspects of the disclosure describe management of wireless transmissions relative to various regulations related to a specific absorption rate. Other aspects of the disclosure relate to detection of user proximity to a transmitting antenna. Other aspects relate to alternative strategies to improve wireless communication, such as selection of alternate antennas or baseband modems, or changes in device orientation.