Methods and apparatus to adjust transmit power headroom for a secondary link while operating in a non-standalone mode

An apparatus for wireless communication at a user equipment (UE), comprising:

• memory;
• and
• at least one processor coupled to the memory and configured to:
• receive a request to enter a multi-connectivity mode in which the UE is configured to transmit data to a first base station via a first access link or to a second base station via a second access link;
• determine, based on the request, a first maximum uplink transmit power for transmissions using the first access link;
• determine a second maximum uplink transmit power for transmissions using the first access link based on uplink transmissions using the first maximum uplink transmit power during an evaluation window based on an initiation of a timer associated with the evaluation window and an evaluation of a performance of the first access link based on uplink transmissions during the evaluation window when the timer expires;
• and
• transmit, to the first base station via the first access link, at least one uplink transmission based on the second maximum uplink transmit power.

A method of wireless communication at a first base station, comprising:

• transmitting, to a user equipment (UE), a request for the UE to enter a multi-connectivity mode in which the UE is configured to transmit data to the first base station via a first access link or to a second base station via a second access link;
• receiving a first set of uplink transmissions from the UE during an evaluation window, the first set of uplink transmissions associated with a first maximum uplink transmit power associated with the first access link;
• and
• receiving a second set of uplink transmissions from the UE, the second set of uplink transmissions associated with a second maximum uplink transmit power associated with the first access link, the second set of uplink transmissions being after the evaluation window, wherein the second maximum uplink transmit power associated with the second set of uplink transmissions is based on the first maximum uplink transmit power and at least one of an uplink block error rate (BLER) associated with the first set of uplink transmissions or an average signal level associated with the first set of uplink transmissions.

An apparatus for wireless communication at a first base station, comprising:

• memory;
• and
• at least one processor coupled to the memory and configured to:
• transmit, to a user equipment (UE), a request for the UE to enter a multi-connectivity mode in which the UE is configured to transmit data to the first base station via a first access link or to a second base station via a second access link;
• receive a first set of uplink transmissions from the UE during an evaluation window, the first set of uplink transmissions associated with a first maximum uplink transmit power associated with the first access link;
• and
• receive a second set of uplink transmissions from the UE, the second set of uplink transmissions associated with a second maximum uplink transmit power associated with the first access link, the second set of uplink transmissions being after the evaluation window, wherein the second maximum uplink transmit power associated with the second set of uplink transmissions is based on the first maximum uplink transmit power and at least one of an uplink block error rate (BLER) associated with the first set of uplink transmissions or an average signal level associated with the first set of uplink transmissions.