US Patent 10257792 Maximum power reduction for full duplex communications

The disclosure relates to transmission power control for Full Duplex, FD, Communications. In particular it relates to methods in a wireless device and in a network node of controlling Full Duplex, FD, transmission power using Maximum Power Reduction, MPR, parameters for FD Communications and to a corresponding network node, wireless device and computer program. According to some aspects, the disclosure relates to a method, performed in a wireless device 10, being served by a network node 20, for controlling Full Duplex, FD, transmission power. The method comprises receiving (S1), from the network node, information indicative of a downlink transmission power of the network node, and obtaining (S3) at least one Full Duplex maximum power reduction parameter, based on the received information. The method further comprises determining (S4) uplink transmission power based on the at least one Full Duplex maximum power reduction parameter and transmitting (S5) an uplink signal to the network node, with the determined uplink transmission power, in the FD mode. Thereby, Full Duplex maximum power reduction parameters can be set such that the total emitted power by the wireless device and the network node together will stay within predefined limits.