Methods and apparatus for subband full-duplex

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

receiving a configuration message associated with at least one subband comprising a subband full-duplex (SB-FD) resource in a slot for an uplink transmission associated with the UE, wherein the SB-FD resource overlaps at least partially with a downlink transmission in a time domain within the slot; and

transmitting uplink data via the SB-FD resource.

2. The method of claim 1 , wherein receiving the configuration message comprises receiving a radio resource control (RRC) configuration indicating the SB-FD resource for the uplink transmission.

3. The method of claim 1 , wherein the configuration message further comprises a first resource indicator indicating a first uplink transmission resource set in the SB-FD resource.

4. The method of claim 3 , wherein the configuration message further comprises a second resource indicator indicating a second uplink transmission resource set in uplink resource different the SB-FD resource.

5. The method of claim 4 , further comprising receiving a selection indicator indicating to the UE to use the SB-FD resource or the uplink resource.

6. The method of claim 1 , wherein the configuration message further comprises a subband size associated with a subband of the at least one subband and one or more uplink transmission resource set in the SB-FD resource.

7. The method of claim 1 , wherein the at least one subband comprises two subbands comprising the SB-FD resource.

8. The method of claim 7 , wherein the configuration message further comprises a selection of the one of the two subbands, a subband size associated with the selected one of the two subbands, and a resource indicator indicating one or more uplink transmission resource set in the SB-FD resource.

9. The method of claim 7 ,

wherein the configuration message further comprises:

if the SB-FD resource is in a first subband of the two subbands, a first starting RB index for the first subband and a subband size of the first subband to indicate a starting resource position of the SB-FD resource, or

if the SB-FD resource is in a second subband of the two subbands, a second starting RB index for the second subband and a subband size of the second subband to indicate the starting resource position of the SB-FD resource;

further comprising:

retrieving an offset value;

calculating the starting resource position of the SB-FD resource based on:

the first starting RB index for the first subband, a subband size of the first subband, and the offset value if the SB-FD resource is in the first subband of the two subbands, or

the second starting RB index for the second subband, the subband size of the second subband, and the offset value if the SB-FD resource is in the second subband of the two subbands; and

wherein transmitting the uplink data further comprises transmitting the uplink data at the starting resource position of the SB-FD resource.

10. The method of claim 1 , wherein the at least one subband comprises three subbands comprising the SB-FD resource.

11. The method of claim 10 , wherein the configuration message further comprises a selection of the one of the three subbands, a subband size associated with the selected one of the three subbands, and a resource indicator indicating one or more uplink transmission resource set in the SB-FD resource.

12. The method of claim 10 ,

wherein the configuration message further comprises:

a selection indicator indicating a selection of a first subband and a second subband of the three subbands for the uplink transmission;

if the SB-FD resource is in a first subband of the two selected subbands, a first starting RB index for the first subband and a subband size of the first subband to indicate a starting resource position of the SB-FD resource, or

if the SB-FD resource is in a second subband of the two selected subbands, a second starting RB index for the second subband and a subband size of the second subband to indicate the starting resource position of the SB-FD resource;

further comprising:

retrieving an offset value;

calculating the starting resource position of the SB-FD resource based on:

the first starting RB index for the first subband, a subband size of the first subband, and the offset value if the SB-FD resource is in the first subband of the two selected subbands, or

the second starting RB index for the second subband, the subband size of the second subband, and the offset value if the SB-FD resource is in the second subband of the two selected subbands; and

wherein transmitting the uplink data further comprises transmitting the uplink data at the starting resource position of the SB-FD resource.

13. The method of claim 1 , wherein the uplink transmission is a physical uplink control channel (PUCCH) transmission or a physical uplink shared channel (PUSCH) transmission.

14. A user equipment (UE), comprising:

a memory comprising instructions;

a transceiver; and

one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to:

receive a configuration message associated with at least one subband comprising subband full-duplex (SB-FD) resource in a slot for an uplink transmission associated with the UE, wherein the SB-FD resource overlaps at least partially with a downlink transmission in a time domain within the slot; and

transmit uplink data via the SB-FD resource.

15. The UE of claim 14 , wherein the one or more processors are configured to execute instructions in the memory to receive a radio resource control (RRC) configuration indicating the SB-FD resource for the uplink transmission.

16. The UE of claim 14 , wherein the configuration message further comprises a first resource indicator indicating a first uplink transmission resource set in the SB-FD resource.

17. The UE of claim 16 , wherein the configuration message further comprises a second resource indicator indicating a second uplink transmission resource set in uplink resource different the SB-FD resource.

18. The UE of claim 17 , wherein the one or more processors are further configured to receive a selection indicator indicating to the UE to use the SB-FD resource or the uplink resource.

19. The UE of claim 14 , wherein the configuration message further comprises a subband size associated with a subband of the at least one subband and one or more uplink transmission resource set in the SB-FD resource.

20. The UE of claim 14 , wherein the at least one subband comprises two subbands comprising the SB-FD resource.

21. The UE of claim 20 , wherein the configuration message further comprises a selection of the one of the two subbands, a subband size associated with the selected one of the two subbands, and a resource indicator indicating one or more uplink transmission resource set in the SB-FD resource.

22. The UE of claim 20 ,

wherein the configuration message further comprises:

if the SB-FD resource is in a first subband of the two subbands, a first starting RB index for the first subband and a subband size of the first subband to indicate a starting resource position of the SB-FD resource, or

if the SB-FD resource is in a second subband of the two subbands, a second starting RB index for the second subband and a subband size of the second subband to indicate the starting resource position of the SB-FD resource;

wherein the one or more processors are further configured to:

retrieve an offset value;

calculate the starting resource position of the SB-FD resource based on:

the first starting RB index for the first subband, a subband size of the first subband, and the offset value if the SB-FD resource is in the first subband of the two subbands, or

the second starting RB index for the second subband, the subband size of the second subband, and the offset value if the SB-FD resource is in the second subband of the two subbands; and

wherein transmitting the uplink data further comprises transmitting the uplink data at the starting resource position of the SB-FD resource.

23. The UE of claim 14 , wherein the at least one subband comprises three subbands comprising the SB-FD resource.

24. The UE of claim 23 , wherein the configuration message further comprises a selection of the one of the three subbands, a subband size associated with the selected one of the three subbands, and a resource indicator indicating one or more uplink transmission resource set in the SB-FD resource.

25. The UE of claim 23 ,

wherein the configuration message further comprises:

a selection indicator indicating a selection of a first subband and a second subband of the three or more subbands for the uplink transmission;

if the SB-FD resource is in a first subband of the two selected subbands, a first starting RB index for the first subband and a subband size of the first subband to indicate a starting resource position of the SB-FD resource, or

if the SB-FD resource is in a second subband of the two selected subbands, a second starting RB index for the second subband and a subband size of the second subband to indicate the starting resource position of the SB-FD resource;

wherein the one or more processors are further configured to:

retrieve an offset value;

calculate the starting resource position of the SB-FD resource based on:

the first starting RB index for the first subband, a subband size of the first subband, and the offset value if the SB-FD resource is in the first subband of the two selected subbands, or

the second starting RB index for the second subband, the subband size of the second subband, and the offset value if the SB-FD resource is in the second subband of the two selected subbands; and

wherein transmitting the uplink data further comprises transmitting the uplink data at the starting resource position of the SB-FD resource.

26. The UE of claim 14 , wherein the uplink transmission is a physical uplink control channel (PUCCH) transmission or a physical uplink shared channel (PUSCH) transmission.

27. A non-transitory computer readable medium having instructions stored therein that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:

receive a configuration message associated with at least one subband comprising subband full-duplex (SB-FD) resource in a slot for an uplink transmission associated with the UE, wherein the SB-FD resource overlaps at least partially with a downlink transmission in a time domain within the slot; and

transmit uplink data via the SB-FD resource.

28. The non-transitory computer readable medium of claim 27 , wherein the at least one subband comprises two subbands comprising the SB-FD resource.

29. A user equipment (UE), comprising:

means for receiving a configuration message associated with at least one subband comprising subband full-duplex (SB-FD) resource in a slot for an uplink transmission associated with the UE, wherein the SB-FD resource overlaps at least partially with a downlink transmission in a time domain within the slot; and

means for transmitting uplink data via the SB-FD resource.

30. The UE of claim 29 , wherein the at least one subband comprises two subbands comprising the SB-FD resource.