Scheduling adaptation and power saving for MBS

A wireless device, comprising:

• one or more processors;
• and
• memory coupled to the one or more processors and storing instructions that, when executed by the one or more processors, cause the wireless device to:
• receive radio resource control (RRC) messages comprising configuration parameters of multicast transmissions, wherein the configuration parameters indicate:
• common frequency resources (CFRs) comprising a number of resource blocks within a bandwidth part of a cell;
• a radio network temporary identifier (RNTI);
• and
• a value of a maximum multiple-input-multiple-output (MIMO) layer indication for transmission via the CFRs;
• receive, via the CFRs and based on the RNTI, a group common downlink control information (DCI) indicating a multicast transmission of a transport block (TB);
• and
• receive the multicast transmission of the TB with a number of MIMO layers equal to or less than the value of the maximum MIMO layer indication.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

• receive radio resource control (RRC) messages comprising configuration parameters of multicast transmissions, wherein the configuration parameters indicate:
• common frequency resources (CFRs) comprising a number of resource blocks within a bandwidth part of a cell;
• a radio network temporary identifier (RNTI);
• and
• a value of a maximum multiple-input-multiple-output (MIMO) layer indication for transmission via the CFRs;
• receive, via the CFRs and based on the RNTI, a group common downlink control information (DCI) indicating a multicast transmission of a transport block (TB);
• and
• receive the multicast transmission of the TB with a number of MIMO layers equal to or less than the value of the maximum MIMO layer indication.