Method and apparatus for handling tci state and bwp for lower layer signal based mobility in wireless communication system

A method performed by a terminal in a wireless communication system, the method comprising:

• receiving, from a base station, configuration information on a candidate cell for a layer 1 or layer 2 triggered mobility (LTM);
• receiving, from the base station, an LTM cell switch command including information on a transmission configuration indicator (TCI) state for the candidate cell;
• and
• in case that a random access procedure for the candidate cell is performed, applying the TCI state for downlink reception on the candidate cell after completion of the random access procedure.

A method performed by a base station in a wireless communication system, the method comprising:

• transmitting, to a terminal, configuration information on a candidate cell for a layer 1 or layer 2 triggered mobility (LTM);
• and
• transmitting, to the terminal, an LTM cell switch command including information on a transmission configuration indicator (TCI) state for the candidate cell;
• and
• in case that a random access procedure for the candidate cell is performed, applying the TCI state for downlink transmission on the candidate cell after completion of the random access procedure.

A terminal in a wireless communication system, the terminal comprising:

• a transceiver;
• and
• a controller configured to:
• receive, from a base station via the transceiver, configuration information on a candidate cell for a layer 1 or layer 2 triggered mobility (LTM),
• receive, from the base station via the transceiver, an LTM cell switch command including information on a transmission configuration indicator (TCI) state for the candidate cell, and
• in case that a random access procedure for the candidate cell is performed, apply the TCI state for downlink reception on the candidate cell after completion of the random access procedure.

A base station in a wireless communication system, the base station comprising:

• a transceiver;
• and
• a controller configured to:
• transmit, to a terminal via the transceiver, configuration information on a candidate cell for a layer 1 or layer 2 triggered mobility (LTM), and
• transmit, to the terminal via the transceiver, an LTM cell switch command including information on a transmission configuration indicator (TCI) state for the candidate cell, and
• in case that a random access procedure for the candidate cell is performed, apply the TCI state for downlink transmission on the candidate cell after completion of the random access procedure.