Primary cell changing triggered by layer 1 and 2 signaling

A wireless device, comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, configure the wireless device to:
• receive a first configuration parameter of a first cell as a primary cell (PCell);
• receive a second configuration parameter of a conditional handover (CHO) execution condition for executing a CHO procedure for switching to a second cell;
• receive a medium access control control element (MAC CE) comprising an indication to switch the PCell from the first cell to a third cell;
• and
• based on receiving the MAC CE and before the CHO execution condition is satisfied, switch the PCell from the first cell to the third cell.

One or more non-transitory computer-readable media storing instructions that, when executed, configure a wireless device to:

• receive a first configuration parameter of a first cell as a primary cell (PCell);
• receive a second configuration parameter of a conditional handover (CHO) execution condition for executing a CHO procedure for switching to a second cell;
• receive a medium access control control element (MAC CE) comprising an indication to switch the PCell from the first cell to a third cell;
• and
• based on receiving the MAC CE and before the CHO execution condition is satisfied, switch the PCell from the first cell to the third cell.