Pathloss reference signal and transmission configuration indicator state activation with secondary cell activation

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

• a memory one or more memories;
• and
• one or more processors, coupled to the one or more memories memory, the memory and the one or more processors individually or in any combination configured to cause the apparatus to:
• transmit, to a user equipment (UE), a message that indicates a secondary cell (SCell) for activation and a reference signal associated with the SCell;
• and
• refrain from transmitting, to the UE, an additional message that indicates a reference signal for activation that is used to estimate pathloss on the SCell.

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

• a memory one or more memories;
• and
• one or more processors, coupled to the one or more memories memory, the memory and the one or more processors individually or in any combination configured to cause the apparatus to:
• receive, from a base station, a message that indicates a secondary cell (SCell) for activation;
• select a transmission configuration indicator (TCI) state to use, wherein the TCI state is preconfigured into the UE and the message does not include an indicator of the TCI state;
• and
• transmit or receive information on the SCell, using the TCI state, without receiving an additional message that indicates the TCI state for activation.

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

• a memory one or more memories;
• and
• one or more processors, coupled to the one or more memories memory, the memory and the one or more processors individually or in any combination configured to cause the apparatus to:
• transmit, to a user equipment (UE), a message that indicates a secondary cell (SCell) for activation, wherein the message does not include an indicator of a transmission configuration indicator (TCI) state for the UE to use;
• refrain from transmitting, to the UE, an additional message that indicates a transmission configuration indicator (TCI) state for activation that is used to transmit or receive information on the SCell;
• and
• transmit or receive information on the SCell using a TCI state that is preconfigured into the UE.