Method and apparatus for uplink transmission and reception method in wireless communications system

1 . A method for a multicast and broadcast service (MBS) performed by a terminal in a wireless communication system, the method comprising:

receiving, from a base station, configuration information associated with a MBS resource within a downlink bandwidth part (BWP) for a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) receptions via a system information block (SIB), and a downlink control information (DCI) associated with a hybrid automatic repeat request acknowledgment (HARQ-ACK) for the PDSCH;

receiving, from the base station, the PDCCH and the PDSCH based on the configuration information associated with the MBS resource; and

transmitting a physical uplink control channel (PUCCH) associated with the HARQ-ACK for the PDSCH on an uplink BWP, based on the DCI,

wherein, in case that an uplink BWP configured for an MBS is configured by the configuration information associated with the MBS resource, the uplink BWP is determined between a user equipment (UE) specific uplink BWP and the uplink BWP configured for the MBS based on a bit field of the DCI indicating whether only NACK or ACK/NACK is transmitted via the PUCCH, and

wherein, in case that the uplink BWP configured for the MBS is not configured by the configuration information associated with the MBS resource, the uplink BWP is determined as the UE specific uplink BWP.

2 . The method of claim 1 ,

wherein the PDCCH and the PDSCH are received in the BWP associated with the multicast.

3 . The method of claim 1 ,

wherein the configuration information associated with the MBS resource comprises a BWP configured for the MBS, and

wherein the PDCCH and the PDSCH are received in the BWP configured for the MBS.

4 . The method of claim 1 , further comprising:

receiving, from the base station, configuration information associated with an initial BWP of the terminal; and

receiving, from the base station, the PDCCH and the PDSCH based on the configuration information associated with the initial BWP of the terminal.

5 . The method of claim 1 , further comprising:

receiving configuration information for the HARQ-ACK for the PDSCH; and

determining the priority for the PUCCH associated with the HARQ-ACK for the PDSCH based on the configuration information for the HARQ-ACK for the PDSCH.

6 . A method for a multicast and broadcast service (MBS) performed by a base station in a wireless communication system, the method comprising:

transmitting, to a terminal, configuration information associated with a MBS resource within a downlink bandwidth part (BWP) for a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) receptions via a system information block (SIB), and a downlink control information (DCI) associated with a hybrid automatic repeat request acknowledgment (HARQ-ACK) for the PDSCH;

transmitting, to the terminal, the PDCCH and the PDSCH based on the configuration information associated with the MBS resource; and

receiving a physical uplink control channel (PUCCH) associated with the HARQ-ACK for the PDSCH on an uplink BWP, based on the DCI,

wherein, in case that an uplink BWP configured for an MBS is configured by the configuration information associated with the MBS resource, the uplink BWP is determined between a user equipment (UE) specific uplink BWP and the uplink BWP configured for the MBS based on a bit field of the DCI indicating whether only NACK or ACK/NACK is transmitted via the PUCCH, and

wherein, in case that the uplink BWP configured for the MBS is not configured by the configuration information associated with the MBS resource, the uplink BWP is determined as the UE specific uplink BWP.

7 . The method of claim 6 ,

wherein the PDCCH and the PDSCH are transmitted in the BWP associated with the multicast.

8 . The method of claim 6 ,

wherein the configuration information associated with the MBS resource comprises a BWP configured for the MBS, and

wherein the PDCCH and the PDSCH are transmitted in the BWP configured for the MBS.

9 . The method of claim 6 , further comprising:

transmitting, to the terminal, configuration information associated with an initial BWP of the terminal; and

transmitting, to the terminal, the PDCCH and the PDSCH based on the configuration information associated with the initial BWP of the terminal.

10 . A terminal for a multicast and broadcast service (MBS) of a wireless communication system, the terminal comprising:

a transceiver; and

at least one processor configured to:

receive, from a base station, configuration information associated with a MBS resource within a downlink bandwidth part (BWP) for a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) receptions via a system information block (SIB), and a downlink control information (DCI) associated with a hybrid automatic repeat request acknowledgment (HARQ-ACK) for the PDSCH,

receive, from the base station, the PDCCH and the PDSCH based on the configuration information associated with the MBS resource, and

transmit a physical uplink control channel (PUCCH) associated with the HARQ-ACK for the PDSCH on an uplink BWP, based on the DCI,

wherein, in case that an uplink BWP configured for an MBS is configured by the configuration information associated with the MBS resource, the uplink BWP is determined between a user equipment (UE) specific uplink BWP and the uplink BWP configured for a MBS based on a bit field of the DCI indicating whether only NACK or ACK/NACK is transmitted via the PUCCH, and

wherein, in case that the uplink BWP configured for the MBS is not configured by the configuration information associated with the MBS resource, the uplink BWP is determined as the UE specific uplink BWP.

11 . The terminal of claim 10 ,

wherein the PDCCH and the PDSCH are received in the BWP associated with the multicast.

12 . The terminal of claim 10 ,

wherein the configuration information associated with the MBS resource comprises a BWP configured for the MBS, and

wherein the PDCCH and the PDSCH are received in the BWP configured for the MBS.

13 . The terminal of claim 10 , wherein the at least one processor is further configured to:

receive, from the base station, configuration information associated with an initial BWP of the terminal, and

receive, from the base station, the PDCCH and the PDSCH based on the configuration information associated with the initial BWP of the terminal.

14 . The terminal of claim 10 , wherein the at least one processor is further configured to:

receive configuration information for the HARQ-ACK for the PDSCH, and

determine the priority for the PUCCH) associated with the HARQ-ACK for the PDSCH based on the configuration information for the HARQ-ACK for the PDSCH.