User equipment and a method for power control of uplink transmissions

A User Equipment, UE, connectable in dual connectivity mode to at least a first network node and a second network node, the UE comprising:

• a power controller configured to determine to perform a first uplink transmission to the first network node and a second uplink transmission to the second network node, the uplink transmissions to be performed simultaneously, and determine a respective first and second uplink transmission power for the first and the second uplink transmission, and
• a transmitter configured to transmit the first and the second uplink transmissions at the first and the second uplink transmission power respectively when the sum of the first and second uplink transmission power is below a maximum transmission power,
• wherein the power controller is further configured to determine if the first and the second uplink transmission can be performed without exceeding a first or second maximum tolerance value and the maximum transmission power, and if not, the transmitter is configured to transmit the transmission having the highest priority at a transmission power indicated by the maximum tolerance value for that transmission, and
• wherein the first and second maximum tolerance values indicate to the UE the respective maximum allowed deviations between an expected transmission power and an actual transmission power of the first and second uplink transmissions.