Method, apparatus and computer program to adjust power allocated to a transmitter

An apparatus comprising at least one processor and at least one memory including a computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the apparatus at least to:

• transmit, to a user equipment comprising a first transmitter and a second transmitter, a plurality of power sharing configurations, wherein there are a plurality of maximum permissible exposure event levels, and wherein each power sharing configuration of the plurality of power sharing configurations is associated with a respective maximum permissible exposure event level of the plurality of maximum permissible exposure event levels, and wherein each power sharing configuration indicates comprises:
• a first power difference value indicating an amount to decrease the power allocated to a transmitter with which a maximum permissible exposure event is associated when the maximum permissible exposure event is detected;
• a second power difference value indicating an amount to increase the power allocated to at least one transmitter with which the maximum permissible exposure event is not associated when the maximum permissible exposure event is detected;
• and a power allocation to be applied to the first and second transmitters when a maximum permissible exposure event at the respective maximum permissible exposure event level is detected.

A method comprising:

• receiving, at a user equipment comprising a first transmitter and a second transmitter, a plurality of power sharing configurations, wherein there are a plurality of maximum permissible exposure event levels, and wherein each power sharing configuration of the plurality of power sharing configurations is associated with a respective maximum permissible exposure event level of the plurality of maximum permissible exposure event levels, and wherein each power sharing configuration comprises:
• a first power difference value indicating an amount to decrease the power allocated to a transmitter with which a maximum permissible exposure event is associated when the maximum permissible exposure event is detected;
• a second power difference value indicating an amount to increase the power allocated to at least one transmitter with which the maximum permissible exposure event is not associated when the maximum permissible exposure event is detected;
• and a power allocation to be applied to the first and second transmitters when a maximum permissible exposure event at the respective maximum permissible exposure event level is detected;
• detecting a maximum permissible exposure event at a maximum permissible exposure event level of the plurality of maximum permissible exposure event levels, the maximum permissible exposure event being associated with at least one of the first transmitter and the second transmitter;
• and
• adjusting the power allocated to the first transmitter and the second transmitter based on the power sharing configuration corresponding to the detected maximum permissible exposure event level and the detected maximum permissible exposure event, wherein adjusting comprises decreasing the power allocated to the transmitter with which the maximum permissible exposure event is associated based on the first power difference value and increasing the power allocated to at least one transmitter with which the maximum permissible exposure event is not associated based on the second power difference value.