PUSCH and PRACH enhancements

1. A method, comprising:

transmitting, by a User Equipment (UE), in a first slot, a first Physical Uplink Shared Channel (PUSCH) transmission comprising a set of coded bits selected based on a first redundancy version (RV);

determining, by the UE, that a second slot is available for an earliest repetition of the first PUSCH transmission, the second slot being later than the slot immediately following the first slot;

determining, by the UE, a second redundancy version; and

transmitting, by the UE, in the second slot, a second PUSCH transmission,

wherein:

the second redundancy version is determined based on a value k and on the first redundancy version,

the second PUSCH transmission is the k th PUSCH repetition of the first PUSCH transmission, and

the second PUSCH transmission comprises a set of coded bits selected based on the second redundancy version.

2. The method of claim 1 , wherein the second PUSCH transmission is a Type A repetition of the first PUSCH transmission.

3. The method of claim 1 , wherein the determining that the second slot is available for an earliest repetition of the first PUSCH transmission comprises:

receiving a slot format indicator (SFI); and

determining that the second slot is a slot identified, by the SFI, as an uplink slot.

4. The method of claim 1 , wherein the determining that the second slot is available for an earliest repetition of the first PUSCH transmission comprises:

missing a slot format indicator having a region of applicability having a beginning and an end and comprising a plurality of slots; and

determining that the second slot occurs later than the end of the region of applicability.

5. The method of claim 1 , further comprising:

determining that no slots are available after a last scheduled PUSCH repetition and before an end of a maximum PUSCH transmission duration interval, and not transmitting a PUSCH repetition after the last scheduled PUSCH repetition.

6. The method of claim 1 , further comprising:

receiving an indication from a network node (gNB) that a third slot is available for a PUSCH repetition;

receiving an indication from the gNB that the third slot is not available for a PUSCH repetition; and

determining that the third slot is not available for a PUSCH repetition.

7. The method of claim 1 , wherein:

the transmitting, by the UE, of the first PUSCH transmission comprises transmitting the first PUSCH transmission as a non-codebook based transmission using a first precoding matrix; and

the transmitting, by the UE, of the second PUSCH transmission comprises transmitting the second PUSCH transmission as a non-codebook based transmission using a second precoding matrix, different from the first precoding matrix.

8. The method of claim 7 , further comprising:

indicating, by the UE, using a first non-codebook based Sounding Reference Signal (SRS) instance, the first precoding matrix; and

indicating, by the UE, using a second non-codebook based Sounding Reference Signal instance, the second precoding matrix.

9. The method of claim 1 , further comprising:

sending a Physical Random Access Channel (PRACH) preamble in a first Random Access Channel (RACH) Occasion (RO); and

sending the PRACH preamble in a second RO.

10. The method of claim 9 , wherein the UE does not initiate a Random Access Response (RAR) monitoring window after sending the PRACH preamble in the first RO and before sending the PRACH preamble in the second RO.

11. A User Equipment (UE), comprising:

a processing circuit; and

a radio,

the processing circuit being configured to:

transmit, in a first slot, a first Physical Uplink Shared Channel (PUSCH) transmission comprising a set of coded bits selected based on a first redundancy version (RV);

determine that a second slot is available for an earliest repetition of the first PUSCH transmission, the second slot being later than the slot immediately following the first slot;

determine, a second redundancy version; and

transmit, in the second slot, a second PUSCH transmission,

wherein:

the second redundancy version is determined based on a value k and on the first redundancy version,

the second PUSCH transmission is the k th PUSCH repetition of the first PUSCH transmission, and

the second PUSCH transmission comprises a set of coded bits selected based on the second redundancy version.

12. The UE of claim 11 , wherein the second PUSCH transmission is a Type A repetition of the first PUSCH transmission.

13. The UE of claim 11 , wherein the determining that the second slot is available for an earliest repetition of the first PUSCH transmission comprises:

receiving a slot format indicator (SFI); and

determining that the second slot is a slot identified, by the SFI, as an uplink slot.

14. The UE of claim 11 , wherein the determining that the second slot is available for an earliest repetition of the first PUSCH transmission comprises:

missing a slot format indicator having a region of applicability having a beginning and an end and comprising a plurality of slots; and

determining that the second slot occurs later than the end of the region of applicability.

15. The UE of claim 11 , wherein the processing circuit is further configured to:

determine that no slots are available after a last scheduled PUSCH repetition and before an end of a maximum PUSCH transmission duration interval, and

not transmit a PUSCH repetition after the last scheduled PUSCH repetition.

16. The UE of claim 11 , wherein the processing circuit is further configured to:

receive an indication from a network node (gNB) that a third slot is available for a PUSCH repetition;

receive an indication from the gNB that the third slot is not available for a PUSCH repetition; and

determine that the third slot is not available for a PUSCH repetition.

17. The UE of claim 11 , wherein:

the transmitting of the first PUSCH transmission comprises transmitting the first PUSCH transmission as a non-codebook based transmission using a first precoding matrix; and

the transmitting of the second PUSCH transmission comprises transmitting the second PUSCH transmission as a non-codebook based transmission using a second precoding matrix, different from the first precoding matrix.

18. The UE of claim 17 , wherein the processing circuit is further configured to:

indicate, using a first non-codebook based Sounding Reference Signal (SRS) instance, the first precoding matrix; and

indicate, using a second non-codebook based Sounding Reference Signal instance, the second precoding matrix.

19. The UE of claim 11 , wherein the processing circuit is further configured to:

send a Physical Random Access Channel (PRACH) preamble in a first Random Access Channel (RACH) Occasion (RO); and

send the PRACH preamble in a second RO.

20. A User Equipment (UE), comprising:

means for processing; and

a radio,

the means for processing being configured to:

transmit, in a first slot, a first Physical Uplink Shared Channel (PUSCH) transmission comprising a set of coded bits selected based on a first redundancy version (RV);

determine that a second slot is available for an earliest repetition of the first PUSCH transmission, the second slot being later than the slot immediately following the first slot;

determine, a second redundancy version; and

transmit, in the second slot, a second PUSCH transmission,

wherein:

the second redundancy version is determined based on a value k and on the first redundancy version,

the second PUSCH transmission is the k th PUSCH repetition of the first PUSCH transmission, and

the second PUSCH transmission comprises a set of coded bits selected based on the second redundancy version.