User equipment secondary cell activation

An apparatus, comprising:

• at least one processor;
• and
• at least one memory comprising computer program code,
• the at least one memory and computer program code configured, with the at least one processor, to cause the apparatus at least to perform:
• transmitting a secondary cell (SCell) activation command to at least one user equipment (UE), wherein the secondary cell (SCell) activation command comprises an indication of at least one candidate secondary cell (SCell) targeted for activation;
• and
• receiving feedback from the at least one user equipment (UE), wherein the feedback comprises information on the secondary cells (SCells) being activated with reduced activation time.

An apparatus, comprising:

• at least one processor;
• and
• at least one memory comprising computer program code,
• the at least one memory and computer program code configured, with the at least one processor, to cause the apparatus at least to perform:
• receiving a secondary cell (SCell) activation command from a network node, wherein the secondary cell (SCell) activation command comprises an indication of at least one candidate secondary cell (SCell) targeted for activation;
• determining a set of secondary cells (SCells) requested for activation that are available or preferred for activation;
• and
• transmitting feedback to the network node, wherein the feedback comprises information on the available or preferred secondary cells (SCells) being activated.