Dynamically controlled ue output as a function of duty cycle and proximity sensor information

Abstract

Adjusting the power of an uplink transmission based on duty cycle and proximity sensor information is disclosed. The duty cycle represents the ratio of uplink transmission time slots to downlink transmission time slots in a defined period of time. Thus, if during a time period the percentage of uplink transmission is low, then not as much of a power reduction is implemented. If the percentage of uplink transmission is high, then an increased power reduction can be implemented to ensure that the MPE is not exceeded. This duty cycle information can be paired with proximity sensor data to determine whether a person is present. If no person is present, then no power reductions need to be implemented, and if a person is present, then various levels of power reduction can be implemented based on the duty cycle.

What is claimed is: 
     
         1 . A user equipment, comprising:
 a processor; and   a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
 determining a proximity zone for the user equipment as a first function of a geometric configuration of the user equipment and a proximity sensor of the user equipment; 
 receiving proximity data from the proximity sensor, wherein the proximity data indicates that an object is within the proximity zone; and 
 applying a power adjustment to reduce a transmission power of an uplink transmission, wherein a magnitude of the power adjustment is a second function of a distance of the object from the proximity sensor as indicated in the proximity data. 
   
     
     
         2 . The user equipment of  claim 1 , wherein the magnitude of the power adjustment is further a third function of a duty cycle of a transmitter of the user equipment. 
     
     
         3 . The user equipment of  claim 2 , wherein the duty cycle is determined based on downlink control information received from network equipment. 
     
     
         4 . The user equipment of  claim 3 , wherein the downlink control information identifies a slot format for a period of time associated with the uplink transmission. 
     
     
         5 . The user equipment of  claim 1 , wherein the magnitude of the power adjustment is further a third function of a baseline transmit power of a transmitter of the user equipment. 
     
     
         6 . The user equipment of  claim 1 , wherein the power adjustment reduces the transmission power to satisfy a criterion related to exposure of the object to radio frequency energy. 
     
     
         7 . The user equipment of  claim 1 , wherein the magnitude increases as the distance decreases. 
     
     
         8 . A method, comprising:
 determining, by a user equipment comprising a processor, a proximity zone for the user equipment based on a geometric configuration of the user equipment and a proximity sensor of the user equipment;   determining, by the user equipment, based on proximity data received from the proximity sensor, that an object is within the proximity zone; and   applying, by the user equipment, a power backoff that reduces a transmission power of the user equipment, wherein a magnitude of the power backoff is based on a distance of the object from the proximity sensor as indicated in the proximity data.   
     
     
         9 . The method of  claim 8 , wherein the magnitude of the power backoff is further based on a duty cycle of a transmitter of the user equipment. 
     
     
         10 . The method of  claim 9 , wherein the duty cycle is based on a slot format of an upcoming transmission of the user equipment. 
     
     
         11 . The method of  claim 9 , wherein the duty cycle is based on a percentage of time in a time period that the user equipment is scheduled to transmit. 
     
     
         12 . The method of  claim 8 , wherein the magnitude of the power backoff is further based on a baseline transmit power of a transmitter of the user equipment. 
     
     
         13 . The method of  claim 8 , wherein the power backoff reduces the transmission power to satisfy a criterion related to exposure of the object to radio frequency energy. 
     
     
         14 . The method of  claim 8 , wherein the magnitude is inversely proportional to the distance. 
     
     
         15 . A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor of a relay node device, facilitate performance of operations, comprising:
 determining a proximity zone for a user equipment as a function of a geometric configuration of the user equipment and a proximity sensor of the user equipment;   determining, based on proximity data received from the proximity sensor, that an object is within the proximity zone; and   based on distance data included in the proximity data and representative of a distance of the object to the proximity sensor, reducing a transmission power of an uplink transmission of the user equipment.   
     
     
         16 . The non-transitory machine-readable medium of  claim 15 , wherein reducing the transmission power is further based on a duty cycle of a transmitter of the user equipment. 
     
     
         17 . The non-transitory machine-readable medium of  claim 16 , wherein the duty cycle is determined based on a slot format of the uplink transmission. 
     
     
         18 . The non-transitory machine-readable medium of  claim 15 , wherein reducing the transmission power is further based on a baseline transmit power of a transmitter of the user equipment. 
     
     
         19 . The non-transitory machine-readable medium of  claim 15 , wherein reducing the transmission power comprises reducing the transmission power to satisfy a criterion related to exposure of the object to radio frequency energy. 
     
     
         20 . The non-transitory machine-readable medium of  claim 15 , wherein the magnitude decreases as the distance increases.