Sub-band full duplex (SBFD) allocation with disjoint sub-bands

1. An apparatus for wireless communication at a user equipment (UE), comprising:

memory; and

at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:

receive a resource allocation for a first set of resources in a first frequency band that is disjoint from a second frequency band in a sub-band full duplex (SBFD) slot; and

communicate with a network node using the first set of resources in the first frequency band and a corresponding second set of resources in the second frequency band including one of:

a transmission of a same transport block mapped over the first set of resources in the first frequency band and the corresponding second set of resources in the second frequency band, or

a first transmission in the first set of resources in the first frequency band and a repetition of the first transmission in the corresponding second set of resources in the second frequency band.

2. The apparatus of claim 1 , wherein the first set of resources are uplink resources in a first uplink frequency band that is separated in the SBFD slot from a second uplink frequency band by at least one of a downlink frequency band or a guard band, and wherein, to communicate with the network node, the at least one processor is configured to:

transmit uplink communication to the network node using the first set of resources in the first uplink frequency band and the corresponding second set of resources in the second uplink frequency band.

3. The apparatus of claim 2 , wherein the first transmission is a physical uplink shared channel (PUSCH) transmission, and wherein, to transmit the uplink communication, the at least one processor is configured to:

transmit the PUSCH transmission in the first set of resources in the first uplink frequency band; and

transmit the repetition of the PUSCH transmission in the corresponding second set of resources in the second uplink frequency band.

4. The apparatus of claim 2 , wherein the transmission is a physical uplink shared channel (PUSCH) transmission, and the at least one processor is further configured to:

map the same transport block for the PUSCH transmission over the first set of resources and the corresponding second set of resources.

5. The apparatus of claim 1 , wherein the first set of resources are downlink resources in a first downlink frequency band that is separated in the SBFD slot from a second downlink frequency band by at least one of an uplink frequency band or a guard band, and wherein to communicate with the network node, the at least one processor is configured to:

receive downlink communication from the network node in the first set of resources in the first downlink frequency band and the corresponding second set of resources in the second downlink frequency band.

6. The apparatus of claim 5 , wherein the first transmission is a physical downlink shared channel (PDSCH) transmission, and wherein, to receive the downlink communication, the at least one processor is configured to:

receive the PDSCH transmission in the first set of resources in the first downlink frequency band; and

receive the repetition of the PDSCH transmission in the corresponding second set of resources in the second downlink frequency band.

7. The apparatus of claim 5 , wherein the transmission is a physical downlink shared channel (PDSCH) transmission, and wherein the downlink communication maps the same transport block for the PDSCH transmission over the first set of resources and the corresponding second set of resources.

8. The apparatus of claim 1 , wherein the at least one processor is further configured to:

receive an indication to interpret the resource allocation as two frequency domain resource allocations across the first frequency band and the second frequency band.

9. The apparatus of claim 8 , wherein the indication is comprised in a radio resource control (RRC) configuration prior to the resource allocation.

10. The apparatus of claim 8 , wherein the indication is comprised in downlink control information comprising the resource allocation.

11. The apparatus of claim 8 , wherein the indication further indicates one of:

a primary band among the first frequency band and the second frequency band,

the repetition of the transmission over the first frequency band and the second frequency band,

mapping the same transport block over allocated resources in the first frequency band and the second frequency band, or

transmission or reception of different transmissions in the first frequency band and the second frequency band.

12. The apparatus of claim 1 , wherein the at least one processor is configured to communicate with the network node using the first set of resources in the first frequency band and the corresponding second set of resources in the second frequency band based on a slot type.

13. The apparatus of claim 12 , wherein the slot type is the SBFD slot or an RRC configured slot type associated with interpreting a single frequency domain resource allocation (FDRA) across disjoint frequency bands.

14. The apparatus of claim 1 , wherein the resource allocation indicates that the first set of resources starts at an nth resource block in the first frequency band, n being an integer number, and the corresponding second set of resources starts at the nth resource block in the second frequency band.

15. The apparatus of claim 1 , wherein the resource allocation indicates that the first set of resources starts at an n th resource block in the first frequency band, n being an integer number, and the corresponding second set of resources starts at a first resource block in the second frequency band.

16. The apparatus of claim 1 , wherein the first frequency band and the second frequency band have different resource block group (RBG) sizes.

17. The apparatus of claim 16 , wherein a same bitmap is used in the first frequency band and the second frequency band.

18. The apparatus of claim 16 , wherein a first bitmap is used for the first frequency band and a modified bitmap is used for the second frequency band to match a bandwidth allocated in first frequency.

19. The apparatus of claim 1 , wherein the resource allocation comprises a disjoint resource block allocation or a consecutive resource block allocation within the first frequency band.

20. An apparatus of wireless communication at a network node, comprising:

memory; and

at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:

send a resource allocation for a first set of resources in a first frequency band that is disjoint from a second frequency band in a sub-band full duplex (SBFD) slot; and

communicate with a user equipment (UE) using the first set of resources in the first frequency band and a corresponding second set of resources in the second frequency band including one of:

a transmission of a same transport block mapped over the first set of resources in the first frequency band and the corresponding second set of resources in the second frequency band, or

a first transmission in the first set of resources in the first frequency band and a repetition of the first transmission in the corresponding second set of resources in the second frequency band.

21. The apparatus of claim 20 , wherein the at least one processor is further configured to:

transmit an indication to interpret the resource allocation as two frequency domain resource allocations across the first frequency band and the second frequency band, wherein the indication is comprised in a radio resource control (RRC) configuration prior to the resource allocation or is comprised in downlink control information comprising the resource allocation.

22. The apparatus of claim 21 , wherein the indication further indicates one of:

a primary band among the first frequency band and the second frequency band,

the repetition of the transmission over the first frequency band and the second frequency band,

mapping the same transport block over allocated resources in the first frequency band and the second frequency band, or

transmission or reception of different transmissions in the first frequency band and the second frequency band.

23. The apparatus of claim 20 , wherein communication with the first set of resources in the first frequency band and the corresponding second set of resources in the second frequency band is based on a slot type.

24. The apparatus of claim 20 , wherein the resource allocation indicates that the first set of resources starts at an n th resource block in the first frequency band, n being an integer number, and the corresponding second set of resources starts at the n th resource block in the second frequency band.

25. The apparatus of claim 20 , wherein the resource allocation indicates that the first set of resources starts at an n th resource block in the first frequency band, n being an integer number, and the corresponding second set of resources starts at a first resource block in the second frequency band.

26. The apparatus of claim 20 , wherein the first frequency band and the second frequency band have different resource block group (RBG) sizes.

27. A method for wireless communication at a user equipment (UE), comprising:

receiving a resource allocation for a first set of resources in a first frequency band that is disjoint from a second frequency band in a sub-band full duplex (SBFD) slot; and

communicating with a network node using the first set of resources in the first frequency band and a corresponding second set of resources in the second frequency band including one of:

a transmission of a same transport block mapped over the first set of resources in the first frequency band and the corresponding second set of resources in the second frequency band, or

a first transmission in the first set of resources in the first frequency band and a repetition of the first transmission in the corresponding second set of resources in the second frequency band.

28. A method of wireless communication at a network node, comprising:

sending a resource allocation for a first set of resources in a first frequency band that is disjoint from a second frequency band in a sub-band full duplex (SBFD) slot; and

communicating with a user equipment (UE) using the first set of resources in the first frequency band and a corresponding second set of resources in the second frequency band including one of:

a transmission of a same transport block mapped over the first set of resources in the first frequency band and the corresponding second set of resources in the second frequency band, or

a first transmission in the first set of resources in the first frequency band and a repetition of the first transmission in the corresponding second set of resources in the second frequency band.

29. The apparatus of claim 20 , wherein the first transmission is a physical uplink shared channel (PUSCH) transmission, and wherein, to communicate with the UE, the at least one processor is configured to:

receive the PUSCH transmission in the first set of resources in a first uplink frequency band; and

receive the repetition of the PUSCH transmission in the corresponding second set of resources in a second uplink frequency band.

30. The apparatus of claim 20 , wherein the transmission is a physical uplink shared channel (PUSCH) transmission and, to communicate with the UE, the at least one processor is configured to:

receive the PUSCH that maps the same transport block over the first set of resources and the corresponding second set of resources.

31. The apparatus of claim 20 , wherein the first transmission is a physical downlink shared channel (PDSCH) transmission, and wherein, to communicate with the UE, the at least one processor is configured to:

transmit the PDSCH transmission in the first set of resources in a first downlink frequency band; and

transmit the repetition of the PDSCH transmission in the corresponding second set of resources in a second downlink frequency band.

32. The apparatus of claim 20 , wherein the transmission is a physical downlink shared channel (PDSCH) transmission and, to communicate with the UE, the at least one processor is configured to:

map the same transport block over the first set of resources and the corresponding second set of resources; and

transmit the PDSCH transmission.