Slot format indicator in frequency division duplexing

1. A method for wireless communication, comprising:

receiving a time division duplexing (TDD) multi-slot slot format indicator (SFI) for a set of slots;

identifying that a UE is operating in a frequency division duplexing (FDD) mode;

determining, based at least in part on the FDD mode and the TDD multi-slot SFI, a downlink slot format and an uplink slot format for a subset of the set of slots;

wherein determining the downlink slot format and the uplink slot format comprises:

determining a first slot format indicator for a first slot of the set and a second slot format indicator for a second slot of the set, wherein the first slot precedes the second slot;

allocating the first slot format indicator as the downlink slot format for the first slot and the second slot format indicator as the uplink slot format for the first slot;

determining a third slot format indicator for a third slot of the set and a fourth slot format indicator for a fourth slot of the set, wherein the third slot precedes the fourth slot; and

allocating the third slot format indicator as the downlink slot format for the second slot and the fourth slot format indicator as the uplink slot format for the second slot.

2. The method of claim 1 , further comprising:

performing downlink communications during the subset of the set of slots in accordance with the downlink slot format; and

performing uplink communications during the subset of the set of slots in accordance with the uplink slot format.

3. The method of claim 1 , wherein determining the downlink slot format and the uplink slot format comprises:

determining the downlink slot format based at least in part on a first portion of the TDD multi-slot SFI; and

determining the uplink slot format based at least in part on a second portion of the TDD multi-slot SFI.

4. The method of claim 1 , wherein determining the downlink slot format and the uplink slot format comprises:

determining the downlink slot format based at least in part on one or more slot format indicators for a first group of slots of the set; and

determining the uplink slot format based at least in part on one or more slot format indicators for a second group of slots of the set.

5. The method of claim 4 , wherein:

the first group of slots of the set comprises one or more odd-numbered slots of the set; and

the second group of slots of the set comprises one or more even-numbered slots of the set.

6. The method of claim 4 , wherein slots of the first group of slots and slots of the second group of slots alternate within the set of slots.

7. The method of claim 1 , wherein the first slot immediately precedes the second slot.

8. The method of claim 1 , further comprising:

communicating with a base station based at least in part on the downlink slot format or the uplink slot format.

9. An apparatus for wireless communication, comprising:

means for receiving a time division duplexing (TDD) multi-slot slot format indicator (SFI) for a set of slots;

means for identifying that a UE is operating in a frequency division duplexing (FDD) mode;

means for determining, based at least in part on the FDD mode, a downlink slot format and an uplink slot format for a subset of the set of slots from the TDD multi-slot SFI;

wherein the means for determining the downlink slot format and the uplink slot format comprises:

means for determining a first slot format indicator for a first slot of the set and a second slot format indicator for a second slot of the set, wherein the first slot precedes the second slot;

means for allocating the first slot format indicator as the downlink slot format for the first slot and the second slot format indicator as the uplink slot format for the first slot;

means for determining a third slot format indicator for a third slot of the set and a fourth slot format indicator for a fourth slot of the set, wherein the third slot precedes the fourth slot; and

means for allocating the third slot format indicator as the downlink slot format for the second slot and the fourth slot format indicator as the uplink slot format for the second slot.

10. The apparatus of claim 9 , further comprising:

means for performing downlink communications during the subset of the set of slots in accordance with the downlink slot format; and

means for performing uplink communications during the subset of the set of slots in accordance with the uplink slot format.

11. The apparatus of claim 9 , wherein the means for determining the downlink slot format and the uplink slot format comprises:

means for determining the downlink slot format based at least in part on a first portion of the TDD multi-slot SFI; and

means for determining the uplink slot format based at least in part on a second portion of the TDD multi-slot SFI.

12. The apparatus of claim 9 , wherein the means for determining the downlink slot format and the uplink slot format comprises:

means for determining the downlink slot format based at least in part on one or more slot format indicators for a first group of slots of the set; and

means for determining the uplink slot format based at least in part on one or more slot format indicators for a second group of slots of the set.

13. The apparatus of claim 12 , wherein:

the first group of slots of the set comprises one or more odd-numbered slots of the set; and

the second group of slots of the set comprises one or more even-numbered slots of the set.

14. The apparatus of claim 12 , wherein slots of the first group of slots and slots of the second group of slots alternate within the set of slots.

15. The apparatus of claim 9 , wherein the first slot immediately precedes the second slot.

16. The apparatus of claim 9 , further comprising:

means for communicating with a base station based at least in part on the downlink slot format or the uplink slot format.

17. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receive a time division duplexing (TDD) multi-slot slot format indicator (SFI) for a set of slots;

identify that a UE is operating in a frequency division duplexing (FDD) mode;

determine, based at least in part on the FDD mode, a downlink slot format and an uplink slot format for a subset of the set of slots from the TDD multi-slot SFI;

wherein the instructions to determine the downlink slot format and the uplink slot format are executable by the processor to cause the apparatus to:

determine a first slot format indicator for a first slot of the set and a second slot format indicator for a second slot of the set, wherein the first slot precedes the second slot;

allocate the first slot format indicator as the downlink slot format for the first slot and the second slot format indicator as the uplink slot format for the first slot;

determine a third slot format indicator for a third slot of the set and a fourth slot format indicator for a fourth slot of the set, wherein the third slot precedes the fourth slot; and

allocate the third slot format indicator as the downlink slot format for the second slot and the fourth slot format indicator as the uplink slot format for the second slot.

18. The apparatus of claim 17 , wherein the instructions are further executable by the processor to cause the apparatus to:

perform downlink communications during the subset of the set of slots in accordance with the downlink slot format; and

perform uplink communications during the subset of the set of slots in accordance with the uplink slot format.

19. The apparatus of claim 17 , wherein the instructions to determine the downlink slot format and the uplink slot format are executable by the processor to cause the apparatus to:

determine the downlink slot format based at least in part on a first portion of the TDD multi-slot SFI; and

determine the uplink slot format based at least in part on a second portion of the TDD multi-slot SFI.

20. The apparatus of claim 17 , wherein the instructions to determine the downlink slot format and the uplink slot format are executable by the processor to cause the apparatus to:

determine the downlink slot format based at least in part on one or more slot format indicators for a first group of slots of the set; and

determine the uplink slot format based at least in part on one or more slot format indicators for a second group of slots of the set.

21. The apparatus of claim 20 , wherein:

the first group of slots of the set comprises one or more odd-numbered slots of the set; and

the second group of slots of the set comprises one or more even-numbered slots of the set.

22. The apparatus of claim 20 , wherein slots of the first group of slots and slots of the second group of slots alternate within the set of slots.

23. The apparatus of claim 17 , wherein the first slot immediately precedes the second slot.

24. The apparatus of claim 17 , wherein the instructions are further executable by the processor to cause the apparatus to:

communicate with a base station based at least in part on the downlink slot format or the uplink slot format.

25. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:

receive a time division duplexing (TDD) multi-slot slot format indicator (SFI) for a set of slots;

identify that a UE is operating in a frequency division duplexing (FDD) mode;

determine, based at least in part on the FDD mode, a downlink slot format and an uplink slot format for a subset of the set of slots from the TDD multi-slot SFI;

wherein the instructions to determine the downlink slot format and the uplink slot format are executable by the processor to:

determine a first slot format indicator for a first slot of the set and a second slot format indicator for a second slot of the set, wherein the first slot precedes the second slot;

allocate the first slot format indicator as the downlink slot format for the first slot and the second slot format indicator as the uplink slot format for the first slot;

determine a third slot format indicator for a third slot of the set and a fourth slot format indicator for a fourth slot of the set, wherein the third slot precedes the fourth slot; and

allocate the third slot format indicator as the downlink slot format for the second slot and the fourth slot format indicator as the uplink slot format for the second slot.

26. The non-transitory computer-readable medium of claim 25 , wherein the instructions are further executable by the processor to:

perform downlink communications during the subset of the set of slots in accordance with the downlink slot format; and

perform uplink communications during the subset of the set of slots in accordance with the uplink slot format.

27. The non-transitory computer-readable medium of claim 25 , wherein the instructions to determine the downlink slot format and the uplink slot format are executable by the processor to:

determine the downlink slot format based at least in part on a first portion of the TDD multi-slot SFI; and

determine the uplink slot format based at least in part on a second portion of the TDD multi-slot SFI.

28. The non-transitory computer-readable medium of claim 25 , wherein the instructions to determine the downlink slot format and the uplink slot format are executable by the processor to:

determine the downlink slot format based at least in part on one or more slot format indicators for a first group of slots of the set; and

determine the uplink slot format based at least in part on one or more slot format indicators for a second group of slots of the set.

29. The non-transitory computer-readable medium of claim 28 , wherein:

the first group of slots of the set comprises one or more odd-numbered slots of the set; and

the second group of slots of the set comprises one or more even-numbered slots of the set.

30. The non-transitory computer-readable medium of claim 28 , wherein slots of the first group of slots and slots of the second group of slots alternate within the set of slots.

31. The non-transitory computer-readable medium of claim 25 , wherein the first slot immediately precedes the second slot.

32. The non-transitory computer-readable medium of claim 25 , wherein the instructions are further executable by the processor to:

communicate with a base station based at least in part on the downlink slot format or the uplink slot format.