User equipment collision handling for multiple transmission-reception point scheduling

1 . A method of wireless communication performed by a user equipment (UE), the method comprising:

receiving, from a first network node, a first multi-downlink control information (mDCI) scheduling a first communication associated with a first transmit receive point (TRP) in a first reserved resource;

receiving, from a second network node, a second mDCI scheduling a second communication associated with a second TRP in a second reserved resource;

detecting a collision or a conflict between the first communication and the second communication based on a capability of the UE to receive or transmit a plurality of communications that overlap in at least one of time or frequency;

refraining, based on detecting the collision or the conflict, from communicating the first communication in the first reserved resource;

communicating the second communication in the second reserved resource; and

transmitting, based on the refraining, an indication that the UE did not communicate the first communication.

2 . The method of claim 1 ,

wherein the plurality of communications comprises a plurality of unicast physical downlink shared channel (PDSCH) transmissions, and

wherein the capability of the UE comprises a capability of the UE to receive the plurality of unicast PDSCH transmissions.

3 . The method of claim 2 ,

wherein the capability of the UE to receive the plurality of unicast PDSCH transmissions comprises at least one of:

a capability of the UE to receive the plurality of unicast PDSCH transmissions that overlap in time;

a total received PDSCH rank capability;

a per-PDSCH transmission rank capability;

a capability of the UE to receive the plurality of unicast PDSCH transmissions that overlap in frequency;

a capability for total received PDSCH transport block (TB) during a time period; or

a per-PDSCH transmission TB capability.

4 . The method of claim 1 ,

wherein the plurality of communications comprises a plurality of physical uplink control channel (PUCCH) transmissions, and

wherein the capability of the UE comprises a capability of the UE to transmit the plurality of PUCCH transmissions.

5 . The method of claim 4 ,

wherein the capability of the UE to transmit the plurality of PUCCH transmissions comprises at least one of:

a capability of the UE to transmit the plurality of PUCCH transmissions that overlap in time; or

a capability of the UE to transmit a PUCCH transmission, of the plurality of PUCCH transmissions, and a physical uplink shared channel (PUSCH) transmission that overlap in time.

6 . The method of claim 1 ,

wherein the plurality of communications comprises a plurality of physical uplink shared channel (PUSCH) transmissions, and

wherein the capability of the UE comprises a capability of the UE to transmit the plurality of PUSCH transmissions.

7 . The method of claim 6 ,

wherein the capability of the UE to transmit the plurality of PUSCH transmissions comprises at least one of:

a capability of the UE to transmit the plurality of PUSCH transmissions that overlap in time;

a capability of the UE to transmit the plurality of PUSCH transmissions that overlap in frequency; or

a total PUSCH transmission rank capability.

8 . The method of claim 1 ,

wherein transmitting the indication comprises:

transmitting the indication to the first network node.

9 . The method of claim 1 ,

wherein transmitting the indication comprises:

transmitting at least one of a non-acknowledgement (NACK) associated with the first communication, or a media access control-control element (MAC-CE) associated with the first communication.

10 . The method of claim 9 ,

wherein the indication comprises the NACK, the NACK indicating a scheduling collision for at least the first reserved resource at the UE.

11 . A method of wireless communication performed by a first network node, the method comprising:

transmitting, to a user equipment (UE), a first multi-downlink control information (mDCI) scheduling a first communication associated with a first transmit receive point (TRP) in a first reserved resource;

receiving, from the UE, an indication associated with the first communication colliding or conflicting with a second communication associated with a second reserved resource and a second network node, wherein the indication is received based at least in part on a capability of the UE to receive or transmit a plurality of communications that overlap in at least one of time or frequency; and

initiating, based on the indication, a temporary change in a mode of operation of the first network node to reduce scheduling collisions at the UE.

12 . The method of claim 11 ,

wherein initiating the temporary change in the mode of operation of the first network node comprises:

initiating a backoff window for scheduling communications with the UE.

13 . The method of claim 11 ,

wherein initiating the temporary change in the mode of operation of the first network node comprises:

adjusting a communication operating mode or a communication operating condition of the first network node to reduce scheduling collisions at the UE.

14 . The method of claim 11 ,

wherein receiving the indication comprises:

receiving at least one of a non-acknowledgement (NACK) associated with the first communication, or a media access control-control element (MAC-CE) associated with the first communication.

15 . The method of claim 14 ,

wherein the indication comprises the NACK, the NACK indicating the first communication colliding or conflicting with the second communication at the UE.

16 . A user equipment (UE), comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to cause the UE to:

receive, from a first network node, a first multi-downlink control information (mDCI) scheduling a first communication associated with a first transmit receive point (TRP) in a first reserved resource;

receive, from a second network node, a second mDCI scheduling a second communication associated with a second TRP in a second reserved resource;

detect a collision or a conflict between the first communication and the second communication based on a capability of the UE to receive or transmit a plurality of communications that overlap at least one of time or frequency;

refrain, based on detecting the collision or the conflict, from communicating the first communication in the first reserved resource;

communicate the second communication in the second reserved resource; and

transmit, based on the refraining, an indication that the UE did not communicate the first communication.

17 . The UE of claim 16 ,

wherein the plurality of communications comprises a plurality of unicast physical downlink shared channel (PDSCH) transmissions, and

wherein the capability of the UE comprises a capability of the UE to receive the plurality of unicast PDSCH transmissions.

18 . The UE of claim 17 ,

wherein the capability of the UE to receive the plurality of unicast PDSCH transmissions comprises at least one of:

a capability of the UE to receive the plurality of unicast PDSCH transmissions that overlap in time;

a total received PDSCH rank capability;

a per-PDSCH transmission rank capability;

a capability of the UE to receive the plurality of unicast PDSCH transmissions that overlap in frequency;

a capability for total received PDSCH transport block (TB) during a time period; or

a per-PDSCH transmission TB capability.

19 . The UE of claim 16 ,

wherein the plurality of communications comprises a plurality of physical uplink control channel (PUCCH) transmissions, and

wherein the capability of the UE comprises a capability of the UE to transmit the plurality of PUCCH transmissions.

20 . The UE of claim 19 ,

wherein the capability of the UE to transmit the plurality of PUCCH transmissions comprises at least one of:

a capability of the UE to transmit the plurality of PUCCH transmissions that overlap in time; or

a capability of the UE to transmit a PUCCH transmission, of the plurality of PUCCH transmissions, and a physical uplink shared channel (PUSCH) transmission that overlap in time.

21 . The UE of claim 16 ,

wherein the capability of the UE is associated with receiving or transmitting a plurality of transmissions, and

wherein the capability of the UE comprises a capability of the UE to transmit the plurality of PUSCH transmissions.

22 . The UE of claim 21 ,

wherein the capability of the UE to transmit the plurality of PUSCH transmissions comprises at least one of:

a capability of the UE to transmit the plurality of PUSCH transmissions that overlap in time;

a capability of the UE to transmit the plurality of PUSCH transmissions that overlap in frequency; or

a total PUSCH transmission rank capability.

23 . The UE of claim 16 ,

wherein, to transmit the indication, the one or more processors are configured to cause the UE to:

transmit the indication to the first network node.

24 . The UE of claim 16 ,

wherein, to transmit the indication, the one or more processors are configured to cause the UE to:

transmit at least one of a non-acknowledgement (NACK) associated with the first communication, or a media access control-control element (MAC-CE) associated with the first communication.

25 . The UE of claim 24 ,

wherein the indication comprises the NACK, the NACK indicating a scheduling collision for at least the first reserved resource at the UE.

26 . A first network node, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to cause the first network node to:

transmit, to a user equipment (UE), a first multi-downlink control information (mDCI) scheduling a first communication associated with a first transmit receive point (TRP) in a first reserved resource;

receive, from the UE, an indication associated with the first communication colliding or conflicting with a second communication associated with a second reserved resource and a second network node, wherein the indication is received based at least in part on a capability of the UE to receive or transmit a plurality of communications that overlap in at least one of time or frequency; and

initiate, based on the indication, a temporary change in a mode of operation of the first network node to reduce scheduling collisions at the UE.

27 . The first network node of claim 26 ,

wherein, to initiate the temporary change in the mode of operation of the first network node, the one or more processors are configured to cause the first network node to:

initiate a backoff window for scheduling communications with the UE.

28 . The first network node of claim 26 ,

wherein, to initiate the temporary change in the mode of operation of the first network node, the one or more processors are configured to cause the first network node to:

adjust a communication operating mode or a communication operating condition of the first network node to reduce scheduling collisions at the UE.

29 . The first network node of claim 26 ,

wherein, to receive the indication, the one or more processors are configured to cause the first network node to:

receive at least one of a non-acknowledgement (NACK) associated with the first communication, or a media access control-control element (MAC-CE) associated with the first communication.

30 . The first network node of claim 29 ,

wherein the indication comprises the NACK, the NACK indicating the first communication colliding or conflicting with the second communication at the UE.