Multicast communication with cross-carrier scheduling

1 . A user equipment (UE), comprising:

at least one processor; and

at least one memory coupled with the at least one processor and storing instructions executable by the at least one processor to cause the UE to:

receive control signaling indicating a cell configuration associated with a first cell of a set of cells, the cell configuration including a scheduling configuration associated with both the first cell and a second cell of the set of cells for multicast communication, the control signaling including a radio resource control message comprising a radio resource control information element indicating the first cell or the second cell for monitoring of a downlink control channel associated with the multicast communication;

monitor for the downlink control channel associated with the multicast communication on the first cell or the second cell in accordance with the radio resource control information element indication;

monitor for a downlink data channel associated with the multicast communication on the first cell or the second cell in accordance with the monitoring of the downlink control channel; and

receive the multicast communication the first cell or the second cell in accordance with the monitoring of the downlink data channel.

2 . The UE of claim 1 , further comprising enabling a cross-carrier scheduling for one or both of unicast communication or the multicast communication based at least in part on the scheduling configuration,

wherein one or both of the monitoring of the downlink control channel or the monitoring of the downlink data channel is based at least in part on the enabling of the cross-carrier scheduling for one or both of the unicast communication or the multicast communication.

3 . The UE of claim 1 , wherein the processor is further configured to cause the apparatus to:

schedule information for the multicast communication associated with the downlink data channel based at least in part on the monitoring of the downlink control channel associated with the multicast communication, wherein receiving the multicast communication is based at least in part on the receiving of the scheduling information for the multicast communication.

4 . The UE of claim 1 , wherein the scheduling configuration comprises a cross-carrier scheduling configuration, and wherein the processor is further configured to cause the apparatus to:

receive a downlink control channel configuration of the first cell associated with the monitoring of the downlink control channel, the downlink control channel configuration being configured on the first cell, wherein the monitoring of the downlink control channel on the first cell is based at least in part on the receiving of the downlink control channel configuration of the first cell.

5 . The UE of claim 4 , wherein receiving the multicast communication comprises receiving the multicast communication on the first cell based at least in part on the monitoring of the downlink data channel on the first cell.

6 . The UE of claim 4 , wherein the processor is further configured to cause the apparatus to receive a unicast communication on the first cell based at least in part on the monitoring of the downlink control channel on the second cell.

7 . The UE of claim 1 , wherein the processor is further configured to cause the apparatus to determine a a number of time and frequency resources associated with the monitoring of the downlink control channel on one or both of the first cell or the second cell, and wherein the monitoring of the downlink control channel on one or both of the first cell or the second cell is based at least in part on the determining of the number of time and frequency resources associated with the monitoring of the downlink control channel on one or both of the first cell or the second cell.

8 . The UE of claim 7 , wherein the processor is further configured to cause the apparatus to determine a a subcarrier spacing associated with the monitoring of the downlink control channel on one or both of the first cell or the second cell over a transmission time interval, wherein the determining of the number of time and frequency resources associated with the monitoring of the downlink control channel on one or both of the first cell or the second cell is based at least in part on the determining of the subcarrier spacing.

9 . The UE of claim 7 , wherein the number of time and frequency resources is based at least in part on a sum of a first number of control channel elements associated with the monitoring of the downlink control channel on the first cell and a second number of control channel elements associated with the monitoring of the downlink control channel on the second cell.

10 . The UE of claim 9 , wherein the control signaling comprises an indication of a ratio for allocating a respective number of time and frequency resources of the sum to cross-carrier scheduling associated with the first cell and the second cell.

11 . The UE of claim 1 , wherein the processor is further configured to cause the apparatus to determine a a number of blind decodes, a number of blind decoding candidates, or a number of physical downlink control channel candidates, or any combination thereof, associated with the monitoring of the downlink control channel on one or both of the first cell or the second cell, wherein the monitoring of the downlink control channel on one or both of the first cell or the second cell is based at least in part on the determining of blind decodes, the number of blind decoding candidates, or the number of physical downlink control channel candidates, or any combination thereof.

12 . The UE of claim 1 , wherein the processor is further configured to cause the apparatus to one or both of monitoring a respective downlink control channel associated with unicast communication on the first cell or monitoring the downlink control channel associated with the multicast communication on the second cell based at least in part on the control signaling, wherein the processor is further configured to cause the apparatus to:

receive one or both of the unicast communication or the multicast communication on the first cell based at least in part on one or both of the monitoring of the respective downlink control channel associated with the unicast communication on the first cell or the monitoring of the downlink control channel associated with the multicast communication on the second cell.

13 . The UE of claim 1 , wherein the processor is further configured to cause the apparatus to refrain from monitoring the downlink control channel on the first cell or the second cell based at least in part on the received control signaling, wherein the monitoring of the downlink control channel is based at least in part on the refraining from the monitoring of the downlink control channel on the first cell or the second cell.

14 . The UE of claim 1 , wherein the scheduling configuration comprises scheduling information associated with the multicast communication on the second cell and receiving the multicast communication on the first cell or on the second cell.

15 . The UE of claim 1 , wherein the processor is further configured to cause the apparatus to determine a separate cross-carrier scheduling configuration for unicast communication and the multicast communication based at least in part on an indication in the cell configuration indicating cross-carrier scheduling for the unicast communication or the multicast communication associated with the first cell or the second cell, wherein one or both of the monitoring of the downlink control channel or the monitoring of the downlink data channel is based at least in part on the separate cross-carrier scheduling configuration for the unicast communication and the multicast communication.

16 . A user equipment (UE), comprising:

at least one processor; and

at least one memory coupled with the at least one processor and storing instructions executable by the at least one processor to cause the UE to:

receive control signaling indicating a cell configuration associated with a first cell of a set of cells, the cell configuration including a scheduling configuration associated with both the first cell and a second cell of the set of cells for multicast communication;

receiving a downlink control channel configuration of the second cell associated with monitoring of a downlink control channel, wherein a first common frequency resource (CFR) associated with the monitoring of the downlink control channel is configured on the second cell, and a second CFR associated with monitoring of a downlink data channel is configured on the first cell;

monitor for the downlink control channel on the second cell in accordance with the first CFR;

receive the downlink control channel on the second cell in accordance with the monitoring of the downlink control channel on the second cell;

monitor for the downlink data channel on the first cell in accordance with the second CFR;

receive the downlink data channel including the multicast communication on the first cell in accordance with the monitoring of the downlink data channel on the first cell.

17 . A user equipment (UE), comprising:

at least one processor; and

at least one memory coupled with the at least one processor and storing instructions executable by the at least one processor to cause the UE to:

receive control signaling indicating a cell configuration associated with a first cell of a set of cells, the cell configuration including a scheduling configuration associated with both the first cell and a second cell of the set of cells for multicast communication;

receive a downlink control channel configuration of the first cell associated with one or both of monitoring of a downlink control channel or monitoring of the downlink data channel, wherein a first common frequency resource (CFR) associated with the monitoring of the downlink control channel is configured on the first cell, and a second CFR associated with monitoring of a downlink data channel is configured on the first cell;

monitor for the downlink control channel on the second cell in accordance with the first CFR;

receive the downlink control channel on the second cell in accordance with the monitoring of the downlink control channel on the second cell;

monitor for the downlink data channel on the first cell in accordance with the second CFR;

receive the downlink data channel including the multicast communication on the first cell in accordance with the monitoring of the downlink data channel on the first cell.

18 . A user equipment (UE), comprising:

at least one processor; and

at least one memory coupled with the at least one processor and storing instructions executable by the at least one processor to cause the UE to:

receive control signaling indicating a cell configuration associated with a first cell of a set of cells, the cell configuration including a scheduling configuration associated with both the first cell and a second cell of the set of cells for multicast communication;

receive a respective downlink control channel configuration of each of the first cell and the second cell associated with monitoring of a downlink control channel, wherein a first common frequency resource (CFR) associated with the monitoring of the downlink control channel on the second cell is configured on the first cell and the second cell;

monitor for the downlink control channel on the second cell in accordance with the first CFR;

receive the downlink control channel on the second cell in accordance with the monitoring of the downlink control channel on the second cell;

monitor for a downlink data channel associated with the multicast communication on the first cell in accordance with the downlink control channel;

receive the downlink data channel including the multicast communication on the first cell in accordance with the monitoring of the downlink data channel on the first cell.

19 . The UE of claim 18 , wherein the first downlink control channel configuration of each of the first cell and the second cell comprises at least a first downlink control channel configuration of the first cell indicating a control resource set configuration and at least a second downlink control channel configuration of the second cell indicating a search space set configuration.

20 . A network entity, comprising:

at least one processor; and

at least one memory coupled with the at least one processor and storing instructions executable by the at least one processor to cause the network entity to:

transmit control signaling indicating a cell configuration associated with a first cell of a set of cells, the cell configuration including a scheduling configuration associated with both the first cell and a second cell of the set of cells for multicast communication, the control signaling including a radio resource control message comprising a radio resource control information element indicating the first cell or the second cell for monitoring of a downlink control channel associated with the multicast communication;

transmit the downlink control channel associated with the multicast communication on the first cell or the second cell in accordance with the radio resource control information element indication; and

transmit a downlink data channel associated with the multicast communication on the first cell or the second cell in accordance with the transmitting of the downlink control channel.

21 . The network entity of claim 20 , wherein transmitting the downlink control channel comprises:

transmitting the downlink control channel associated with the multicast communication on the second cell, wherein transmitting the downlink data channel comprises:

transmitting the downlink data channel associated with the multicast communication on the first cell.

22 . The network entity of claim 21 , wherein the downlink data channel comprises a group-common multicast downlink data channel.

23 . The network entity of claim 21 , wherein the scheduling configuration corresponds to transmitting scheduling information associated with the multicast communication on the second cell and transmitting the multicast communication on the first cell or on the second cell.