Method and device for activating and inactivating bandwidth part in wireless communication system

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

• at least one transceiver;
• and
• at least one processor connected to the at least one transceiver,
• wherein the at least one processor is configured to:
• receive, from a network through the at least one transceiver, a physical downlink control channel (PDCCH) related to downlink control information (DCI) with cyclic redundancy check (CRC) scrambled by a group-radio network temporary identifier (G-RNTI) on a first bandwidth part (BWP);
• and
• receive, from the network through the at least one transceiver, a group common physical downlink shared channel (PDSCH) based on the PDCCH,
• wherein, based on the G-RNTI being configured for a multicast group common scheduling, a BWP-inactivity timer is started or restarted based on the PDCCH addressed to the G-RNTI configured for the multicast group common scheduling.

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

• at least one transceiver;
• and
• at least one processor connected to the at least one transceiver,
• wherein the at least one processor is configured to:
• transmit, to at least one terminal through the at least one transceiver, a physical downlink control channel (PDCCH) related to downlink control information (DCI) with cyclic redundancy check (CRC) scrambled by a group-radio network temporary identifier (G-RNTI) on a first bandwidth part (BWP);
• and
• transmit, to the at least one terminal through the at least one transceiver, a group common physical downlink shared channel (PDSCH) based on the PDCCH,
• wherein, based on the G-RNTI being configured for a multicast group common scheduling, a BWP-inactivity timer is started or restarted based on the PDCCH addressed to the G-RNTI configured for the multicast group common scheduling.