USER EQUIPMENT AND METHOD FOR MULTICAST/BROADCAST SERVICE

1 . A method for multicast/broadcast services (MBS) performed by a user equipment (UE), the method comprising:

receiving, from a base station (BS), a Radio Resource Control (RRC) message that indicates a search space dedicated for the MBS; and

monitoring MBS Downlink Control Information (DCI) for MBS-related control information in a control resource set (CORESET) in the search space dedicated for the MBS,

wherein the MBS DCI comprises a DCI format with cyclic redundancy check (CRC) scrambled by a Radio Network Temporary Identifier (RNTI) related to the MBS.

2 . The method of claim 1 , wherein the RRC message further indicates

the CORESET in the search space dedicated for the MBS.

3 . The method of claim 1 , wherein the RRC message further indicates physical resources for receiving the MBS DCI.

4 . The method of claim 3 , wherein the physical resources for receiving the MBS DCI comprise common frequency resources.

5 . The method of claim 3 , wherein

the physical resources for receiving the MBS DCI comprise a bandwidth part (BWP).

6 . (canceled)

7 . (canceled)

8 . The method of claim 1 , wherein the RNTI related to the MBS is a group-common RNTI or a cell-RNTI (C-RNTI).

9 . (canceled)

10 . The method of claim 8 , further comprising:

receiving a group-common Physical Downlink Shared Channel (PDSCH) scheduled by the MBS DCI,

wherein the group-common PDSCH is scrambled by the group-common RNTI associated with the MBS DCI.

11 . The method of claim 1 , wherein the MBS DCI includes at least one of the following fields:

a bandwidth part (BWP) ID related to the MBS;

an MBS change notification;

an MBS repetition period;

a frequency bitmap associated with resource allocation for different MBS IDs in frequency domain; and

a timing bitmap associated with resource allocation for different MBS IDs in time domain.

12 . A user equipment (UE) for multicast/broadcast services (MBS), comprising:

one or more processors; and

at least one memory coupled to at least one of the one or more processors, wherein the at least one memory stores a computer-executable program that, when executed by the at least one of the one or more processors, causes the UE to:

receive, from a base station (BS), a Radio Resource Control (RRC) message that indicates a search space dedicated for the MBS; and

monitor MBS Downlink Control Information (DCI) for MBS-related control information in a control resource set (CORESET) in the search space dedicated for the MBS,

wherein the MBS DCI comprises a DCI format with cyclic redundancy check (CRC) scrambled by a Radio Network Temporary Identifier (RNTI) related to the MBS.

13 . The UE of claim 12 , wherein the RRC message further indicates the CORESET in the search space dedicated for the MBS.

14 . The UE of claim 12 , wherein the RRC message further indicates physical resources for receiving the MBS DCI.

15 . The UE of claim 14 , wherein the physical resources for receiving the MBS DCI comprise common frequency resources.

16 . The UE of claim 14 , wherein the physical resources for receiving the MBS DCI comprise a bandwidth part (BWP).

17 . The UE of claim 12 , wherein the RNTI related to the MBS is a group-common RNTI or a cell-RNTI (C-RNTI).

18 . The UE of claim 17 , wherein the computer-executable program, when executed by the one or more processors, further causes the UE to:

receive a group-common Physical Downlink Shared Channel (PDSCH) scheduled by the MBS DCI,

wherein the group-common PDSCH is scrambled by the group-common RNTI associated with the MBS DCI.

19 . The UE of claim 12 , wherein the MBS DCI includes at least one of the following fields:

a bandwidth part (BWP) ID related to the MBS;

an MBS change notification;

an MBS repetition period;

a frequency bitmap associated with resource allocation for different MBS IDs in frequency domain; and

a timing bitmap associated with resource allocation for different MBS IDs in time domain.