Dynamic SAR emission control to minimize RF exposure

摘要

A network node determines one or more parameters related to a Specific Absorption Rate (SAR) target, where SAR is a measure of a maximum energy or power absorbed by a unit of mass of tissue exposed to radio frequency (RF) electromagnetic field (EMF) radiation generated as a result of radio transmissions generated by a UE. The network node generates content for a message for transmission to the UE including the determined one or more SAR-related parameters to be applied by a transmitter in the UE. Based on those one or more SAR-related parameters, the UE determines and implements an action in order to meet the SAR target. Other example embodiments permit the UE to determine the SAR-related parameters in other ways.

主权项

1. A method in a radio user equipment (UE), comprising:
receiving from a radio communications network one or more parameters related to a Specific Absorption Rate (SAR) target, where the one or more SAR-related parameters includes an SAR value that the UE is required to meet, and where SAR is a measure of a maximum energy or power absorbed by a unit of mass of tissue exposed to radio frequency (RF) electromagnetic field (EMF) radiation generated as a result of radio transmissions generated by the UE; based on the one or more SAR-related parameters, determining an action to be taken by the UE in order to meet the SAR target, wherein the UE receives from the radio communications network one or more parameters related to a first SAR target associated with a first scenario and wherein the UE receives from the radio communications network one or more parameters related to a second different SAR target associated with a second different scenario, wherein the one or more SAR-related parameters includes timing information related to a time period over which the UE should meet the SAR target; and implementing the action including meeting the SAR target within the time period.