Spectrum sharing in the spatial domain across radio access technologies

1 . A method of wireless communication at a network node associated with a first radio access technology (RAT), comprising:

configuring, from a set of resources available for dynamic spectrum sharing between the first RAT and a second RAT, a first subset of resources on which to communicate with spatial domain multiplexing associated with the second RAT, wherein the configuring the first subset of resources from the set of resources comprises:

configuring at least one of a demodulation reference signal (DMRS) port, a DMRS scrambling identifier (ID), a quasi-collocation (QCL) state, or a transmission configuration indicator (TCI) state for communication with a user equipment (UE) on the first subset of resources from the set of resources,

wherein the spatial domain multiplexing associated with the second RAT is based on at least one of the DMRS port, the DMRS ID, the QCL state, or the TCI state; and

communicating with the UE associated with the first RAT on the first subset of resources with the spatial domain multiplexing.

2 . The method of claim 1 , wherein communication with the UE on the first subset of resources from the set of resources is multiplexed in a spatial domain with communication associated with the second RAT on the first subset of resources.

3 . The method of claim 1 , wherein the first subset of resources from the set of resources is configured as a physical downlink shared channel (PDSCH).

4 . The method of claim 1 , further comprising:

transmitting, to the UE, information indicating at least one of the DMRS port, DMRS scrambling ID, QCL state, or TCI state.

5 . The method of claim 4 , wherein the information indicating at least one of the DMRS port, DMRS scrambling ID, QCL state, or TCI state is included in downlink control information (DCI).

6 . The method of claim 4 , wherein the at least one of the DMRS port, DMRS scrambling ID, QCL state, or TCI state corresponds with refraining from rate matching for communicating on the first subset of resources from the set of resources.

7 . The method of claim 1 , wherein information indicating the spatial domain multiplexing associated with the second RAT is included in downlink control information (DCI).

8 . The method of claim 1 , further comprising:

receiving, from at least one UE associated with the first RAT, at least one measurement associated with at least one resource of the set of resources that is available for dynamic spectrum sharing between the first RAT and the second RAT, wherein

the first subset of resources from the set of resources is configured based on the at least one measurement.

9 . The method of claim 8 , further comprising:

transmitting, to the at least one UE associated with the first RAT, information indicating the at least one resource of the set of resources; and

refraining from transmitting on the at least one resource of the set of resources, wherein

at least one reference signal of the second RAT is scheduled on the at least one resource of the set of resources.

10 . The method of claim 8 , further comprising:

communicating, with another network node associated with the second RAT, information indicating the at least one resource of the set of resources that is available for dynamic spectrum sharing between the first RAT and the second RAT.

11 . The method of claim 8 , wherein the at least one measurement comprises one of a periodic measurement or an aperiodic measurement.

12 . The method of claim 1 , wherein the first subset of resources from the set of resources is configured as a physical uplink shared channel (PUSCH).

13 . A method of wireless communication at a user equipment (UE) associated with a first radio access technology (RAT), comprising:

receiving, from a network node associated with the first RAT, information indicating a first subset of resources from a set of resources available for dynamic spectrum sharing between the first RAT and a second RAT with spatial domain multiplexing;

receiving, from the network node associated with the first RAT, information indicating at least one of a demodulation reference signal (DMRS) port, a DMRS scrambling identifier (ID), a quasi-collocation (QCL) state, or a transmission configuration indicator (TCI) state for communication with the network node on the first subset of resources from the set of resources,

wherein the spatial domain multiplexing associated with the second RAT is based on the at least one of the DMRS port, the DMRS ID, the QCL state, or the TCI state; and

communicating with the network node associated with the first RAT on the first subset of resources from the set of resources with the spatial domain multiplexing.

14 . The method of claim 13 , wherein communication with the network node on the first subset of resources from the set of resources is multiplexed in a spatial domain with communication associated with the second RAT on the first subset of resources.

15 . The method of claim 13 , wherein the first subset of resources from the set of resources is configured as a physical downlink shared channel (PDSCH).

16 . The method of claim 13 , wherein information indicating the at least one of the DMRS port, DMRS scrambling ID, QCL state, or TCI state is received in downlink control information (DCI).

17 . The method of claim 13 , wherein the at least one of the DMRS port, the DMRS scrambling ID, the QCL state, or the TCI state corresponds with refraining from rate matching for communicating on the first subset of resources from the set of resources.

18 . The method of claim 13 , wherein information indicating the spatial domain multiplexing associated with the second RAT is included in downlink control information (DCI).

19 . The method of claim 13 , further comprising:

receiving, from a second network node associated with the second RAT, at least one reference signal on at least one resource of the set of resources that is available for dynamic spectrum sharing between the first RAT and the second RAT;

performing at least one measurement on the at least one resource of the set of resources based on the at least one reference signal from the second network node associated with the second RAT; and

transmitting the at least one measurement to the network node associated with the first RAT.

20 . The method of claim 19 , further comprising:

receiving, from the network node, information indicating the at least one resource of the set of resources on which the at least one reference signal is scheduled.

21 . The method of claim 19 , wherein the at least one measurement comprises one of a periodic measurement or an aperiodic measurement.

22 . The method of claim 13 , wherein the first subset of resources from the set of resources is configured as a physical uplink shared channel (PUSCH).

23 . An apparatus for wireless communication at a network node associated with a first radio access technology (RAT), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

configure, from a set of resources available for dynamic spectrum sharing between the first RAT and a second RAT, a first subset of resources on which to communicate with spatial domain multiplexing associated with the second RAT, wherein to configure the first subset of resources from the set of resources, the at least one processor is further configured to:

configure at least one of a demodulation reference signal (DMRS) port, a DMRS scrambling identifier (ID), a quasi-collocation (QCL) state, or a transmission configuration indicator (TCI) state for communication with a user equipment (UE) on the first subset of resources from the set of resources,

wherein the spatial domain multiplexing associated with the second RAT is based on at least one of the DMRS port, the DMRS ID, the QCL state, or the TCI state; and

communicate with the UE associated with the first RAT on the first subset of resources with the spatial domain multiplexing.

24 . The apparatus of claim 23 , wherein the first subset of resources from the set of resources is configured as a physical uplink shared channel (PUSCH).

25 . The apparatus of claim 23 , wherein the at least one processor is further configured to:

transmit, to the UE, information indicating at least one of the DMRS port, DMRS scrambling ID, QCL state, or TCI state.

26 . The apparatus of claim 25 , wherein the information indicating at least one of the DMRS port, DMRS scrambling ID, QCL state, or TCI state is included in downlink control information (DCI).

27 . An apparatus for wireless communication at a user equipment (UE) associated with a first radio access technology (RAT), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

receive, from a network node associated with the first RAT, information indicating a first subset of resources from a set of resources available for dynamic spectrum sharing between the first RAT and a second RAT with spatial domain multiplexing;

receive, from the network node associated with the first RAT, information indicating at least one of a demodulation reference signal (DMRS) port, a DMRS scrambling identifier (ID), a quasi-collocation (QCL) state, or a transmission configuration indicator (TCI) state for communication with the network node on the first subset of resources from the set of resources,

wherein the spatial domain multiplexing associated with the second RAT is based on the port, the DMRS ID, the QCL state, or the TCI state; and

communicate with the network node associated with the first RAT on the first subset of resources from the set of resources with the spatial domain multiplexing.

28 . The apparatus of claim 27 , wherein the first subset of resources from the set of resources is configured as a physical uplink shared channel (PUSCH).

29 . The apparatus of claim 27 , wherein information indicating the at least one of the DMRS port, DMRS scrambling ID, QCL state, or TCI state is received in downlink control information (DCI).

30 . The apparatus of claim 27 , wherein the at least one of the DMRS port, the DMRS scrambling ID, the QCL state, or the TCI state corresponds with refraining from rate matching for communicating on the first subset of resources from the set of resources.