Handling a power of transmission and time offset for first and second cell groups in dual connectivity

A wireless device comprising:

• at least one processor;
• and
• at least one memory storing instructions executable by the at least one processor to perform operations to:
• determine a limit of a power of transmission of a first uplink transmission in a second cell group (SCG) wherein the limit is determined based on a detection, before a time offset in relation to a beginning of a time of transmission of the first uplink transmission, of a downlink grant or assignment that triggers a second uplink transmission in a master cell group (MCG) that would overlap in time with the first uplink transmission, wherein the time offset is based on a capability indicated by the wireless device to determine a total transmission power on the SCG at a first symbol of a transmission occasion on the SCG and wherein the time offset is calculated dependent on a channel information state (CSI) processing time if the wireless device indicates a first value for the capability and the time offset is calculated independent of the CSI processing time if the wireless device indicates a second value for the capability, and wherein a power of the second uplink transmission is determined by transmit power control (TPC) commands received before a deadline that is based on the time offset and a delta value, the delta value depending on whether the dual connectivity is synchronous or asynchronous;
• and
• set the power of transmission for the first uplink transmission based on the limit.

A computer program product comprising a non-transitory storage medium storing program code to be executed by processing circuitry of a wireless device, whereby execution of the program code causes the wireless device to perform operations to:

• determine a limit of a power of transmission of a first uplink transmission in second cell group (SCG) wherein the limit is determined based on a detection, before a time offset in relation to a beginning of a time of transmission of the first uplink transmission, of a downlink grant or assignment that triggers a second uplink transmission in a master cell group (MCG) that would overlap in time with the first uplink transmission, wherein the time offset is based on a capability indicated by the wireless device to determine a total transmission power on the SCG at a first symbol of a transmission occasion on the SCG and wherein the time offset is calculated dependent on a channel state information (CSI) processing time if the wireless device indicates a first value for the capability and the time offset is calculated independent of the CSI processing time if the wireless device indicates a second value for the capability, and wherein a power of the second uplink transmission is determined by transmit power control (TPC) commands received before a deadline that is based on the time offset and a delta value, the delta value depending on whether the dual connectivity is synchronous or asynchronous;
• and
• set the power of transmission for the first uplink transmission based on the limit.