Method and device for activating and inactivating bandwidth part in wireless communication system
A method and an apparatus for transmitting or receiving hybrid automatic repeat request-acknowledgement (HARQ-ACK) information in a wireless communication system are disclosed. A method of transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information by a terminal in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving, from a network, a first physical downlink shared channel (PDSCH) based on a first HARQ-ACK reporting mode; receiving, from the network, a second PDSCH based on a second HARQ-ACK reporting mode; and transmitting, to the network, the HARQ-ACK information based on a sequence in which a first bit corresponds to the first HARQ-ACK reporting mode and a second bit corresponds to the second HARQ-ACK reporting mode.
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a network, a physical downlink control channel (PDCCH) on a first bandwidth part (BWP) based on a first group-radio network temporary identifier (G-RNTI) or a second G-RNTI; and
receiving, from the network, a group common physical downlink shared channel (PDSCH) based on the PDCCH,
wherein the first G-RNTI is configured for a multicast group common scheduling, and the second G-RNTI is configured for a broadcast group common scheduling, and
wherein a BWP-inactivity timer is started or restarted based on the PDCCH addressed to the first G-RNTI configured for the multicast group common scheduling.
2. The method of claim 1 , wherein:
a BWP switching to a second BWP is performed based on an expiry of the BWP- inactivity timer.
3. The method of claim 2 , wherein:
the first BWP is an active BWP, and
the second BWP is an initial BWP or a default BWP.
4. The method of claim 1 , wherein:
a data-inactivity timer is started or restarted based on a medium access control service data unit (MAC SDU) related to the multicast group common scheduling.
5. The method of claim 4 , wherein:
based on an expiry of the data-inactivity timer in an radio resource control (RRC) connected state, an action upon going to an RRC idle state is performed.
6. The method of claim 1 , wherein:
the PDCCH corresponds to a first type downlink control information (DCI) format or a second type DCI format,
the first type DCI format is cyclic redundancy check (CRC) scrambled by the first G-RNTI configured for the multicast group common scheduling, and schedules the PDSCH reception, and
the second type DCI format is CRC scrambled by the second G RNTI configured for the broadcast group common scheduling, and schedules the PDSCH reception.
7. The method of claim 1 , wherein:
the BWP-inactivity timer is not started and not restarted based on the PDCCH addressed to a-the second G-RNTI configured for the broadcast group common scheduling.
8. The method of claim 4 , wherein:
the data-inactivity timer is not started and not restarted based on a MAC SDU related to the broadcast group common scheduling.
9. 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) on a first bandwidth part (BWP) based on a first group-radio network temporary identifier (G-RNTI) or a second G-RNTI; and
receive, from the network through the at least one transceiver, a group common physical downlink shared channel (PDSCH) based on the PDCCH,
wherein the first G-RNTI is configured for a multicast group common scheduling, and the second G-RNTI is configured for a broadcast group common scheduling, and
wherein a BWP-inactivity timer is started or restarted based on the PDCCH addressed to the first G-RNTI configured for the multicast group common scheduling.
10. 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) on a first bandwidth part (BWP) based on a first group-radio network temporary identifier (G-RNTI) or a second G-RNTI; 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 the first G-RNTI is configured for a multicast group common scheduling, and the second G-RNTI is configured for a broadcast group common scheduling, and
wherein a BWP-inactivity timer is started or restarted based on the PDCCH addressed to the first G-RNTI configured for the multicast group common scheduling.