Beam indication for L1/2 triggered mobility procedure

A wireless device comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the wireless device to:

• receive one or more radio resource control (RRC) messages comprising:
• first parameters of a first list of transmission configuration indicator (TCI) states of a first cell, for a layer 1 and/or 2 triggered mobility (LTM);
• and
• second parameters of a second list of TCI states of the first cell;
• receive an LTM cell switch command medium access control control element (MAC CE) indicating an LTM cell switch, wherein the LTM cell switch command MAC CE comprises:
• a first field indicating the first cell as a target cell for the LTM cell switch;
• and
• a second field comprising a TCI state ID indicating an activation of a first TCI state of the first list for the first cell;
• and
• transmit or receive, via the first cell, at least one of signals or channels using the first TCI state activated by the LTM cell switch MAC CE, wherein the first TCI state is used in a time duration after receiving the one or more RRC messages and before applying a second TCI state, indicated by an activation command, from the second list for the first cell.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

• receive one or more radio resource control (RRC) messages comprising:
• first parameters of a first list of transmission configuration indicator (TCI) states of a first cell, for a layer 1 and/or 2 triggered mobility (LTM);
• and
• second parameters of a second list of TCI states of the first cell;
• receive an LTM cell switch command medium access control control element (MAC CE) indicating an LTM cell switch, wherein the LTM cell switch command MAC CE comprises:
• a first field indicating the first cell as a target cell for the LTM cell switch;
• and
• a second field comprising a TCI state ID indicating an activation of a first TCI state of the first list for the first cell;
• and
• transmit or receive, via the first cell, at least one of signals or channels using the first TCI state activated by the LTM cell switch MAC CE, wherein the first TCI state is used in a time duration after receiving the one or more RRC messages and before applying a second TCI state, indicated by an activation command, from the second list for the first cell.