Encoding for uplink channel repetition

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

memory; and

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

schedule a plurality of uplink (UL) repetitions including one or more nominal UL repetitions and one or more partial UL repetitions, each of the one or more partial UL repetitions being a subset of one nominal UL repetition of the one or more nominal UL repetitions, wherein a nominal UL repetition of the one or more nominal UL repetitions is segmented to include a first partial UL repetition, not including demodulation reference signal (DM-RS), of the one or more partial UL repetitions, and a second partial UL repetition, including the DM-RS, of the one or more partial UL repetitions; and

encode the first partial UL repetition of the one or more partial UL repetitions using a sequence-based encoding based on a codebook, the first partial UL repetition not including demodulation reference signal (DM-RS).

2. The apparatus of claim 1 , wherein the at least one processor and the memory are further configured to: transmit, to a base station, the plurality of UL repetitions including the first partial UL repetition encoded using the sequence-based encoding.

3. The apparatus of claim 1 , wherein the at least one processor and the memory are further configured to:

encode the second partial UL repetition of the one or more partial UL repetitions using channel encoding with the DM-RS, wherein the second partial UL repetition includes the DM-RS.

4. The apparatus of claim 1 , wherein the at least one processor and the memory are further configured to:

delete the DM-RS scheduled within the second partial UL repetition of the one or more partial UL repetitions; and

encode the second partial UL repetition without the DM-RS using the sequence-based encoding based on the codebook.

5. The apparatus of claim 1 , wherein the at least one processor and the memory are further configured to:

delete the DM-RS scheduled within the second partial UL repetition of the one or more partial UL repetitions; and

combine the first partial UL repetition and the second partial UL repetition without the DM-RS, the combined first and second partial UL repetitions having a symbol length equal to a nominal UL repetition of the one or more nominal UL repetitions, and

wherein, to encode the first partial UL repetition, the at least one processor and the memory are further configured to joint-encode the combined first and second partial UL repetitions using the sequence-based encoding based on the codebook.

6. The apparatus of claim 1 , wherein the at least one processor and the memory are further configured to:

encode, using the sequence-based encoding based on the codebook, a plurality of resources of the second partial UL repetition not allocated with the DM-RS.

7. The apparatus of claim 1 , wherein the at least one processor and the memory are further configured to:

combine the first partial UL repetition and a plurality of resources of the second partial UL repetition not allocated with the DM-RS, and

wherein, to encode the first partial UL repetition, the at least one processor and the memory are further configured to joint-encode, using the sequence-based encoding based on the codebook, a combined first partial UL repetition and the plurality of resources of the second partial UL repetition not allocated with the DM-RS.

8. The apparatus of claim 1 , wherein the at least one processor and the memory are further configured to: receive, from a base station, a configuration including at least one of an indication of the codebook for the sequence-based encoding or an encoding scheme for the second partial UL repetition of the one or more partial UL repetitions including the DM-RS.

9. The apparatus of claim 8 , wherein the configuration is received via at least one of a radio resource control (RRC) signal, a medium access control (MAC) control element (CE) (MAC-CE), or downlink control information (DCI).

10. The apparatus of claim 1 , further comprising a transceiver coupled to the at least one processor,

wherein the plurality of UL repetitions is one of a plurality of physical uplink shared channel (PUSCH) repetitions or a plurality of physical uplink control channel (PUCCH) repetitions.

11. An apparatus for wireless communication at a base station, comprising:

memory; and

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

receive, from a user equipment (UE), a plurality of uplink (UL) repetitions including one or more nominal UL repetitions and one or more partial UL repetitions, each of the one or more partial UL repetitions being a subset of one nominal UL repetition of the one or more nominal UL repetitions, wherein a nominal UL repetition of the one or more nominal UL repetitions is segmented to include a first partial UL repetition, not including demodulation reference signal (DM-RS), of the one or more partial UL repetitions, and a second partial UL repetition, including the DM-RS, of the one or more partial UL repetitions; and

decode the first partial UL repetition of the one or more partial UL repetitions using a sequence-based decoding based on a codebook, the first partial UL repetition not including demodulation reference signal (DM-RS).

12. The apparatus of claim 11 , wherein the at least one processor and the memory are further configured to:

decode the second partial UL repetition including the DM-RS based on at least one of a coding rate or a modulation order indicated by the DM-RS.

13. The apparatus of claim 11 , wherein the at least one processor and the memory are further configured to:

combine the first partial UL repetition and the second partial UL repetition, the combined first and second partial UL repetitions having a symbol length equal to a nominal UL repetition of the one or more nominal UL repetitions, and

wherein, to decode the first partial UL repetition, the at least one processor and the memory are further configured to: joint-decode the combined first and second partial UL repetitions using the sequence-based decoding based on the codebook.

14. The apparatus of claim 11 , wherein the at least one processor and the memory are further configured to:

decode, using the sequence-based decoding based on the codebook, a plurality of resources of the second partial UL repetition not allocated with the DM-RS.

15. The apparatus of claim 11 , wherein the at least one processor and the memory are further configured to:

combine the first partial UL repetition and a plurality of resources of the second partial UL repetition not allocated with the DM-RS, and

wherein, to decode the first partial UL repetition, the at least one processor and the memory are further configured to: joint-decode, using the sequence-based decoding based on the codebook, a combined first partial UL repetition and the plurality of resources of the second partial UL repetition not allocated with the DM-RS.

16. The apparatus of claim 11 , wherein the at least one processor and the memory are further configured to: transmit, to the UE, a configuration including at least one of an indication of the codebook for a sequence-based encoding or an encoding scheme for the second partial UL repetition of the one or more partial UL repetitions including the DM-RS.

17. The apparatus of claim 16 , wherein the configuration is transmitted via at least one of a radio resource control (RRC) signal, a medium access control (MAC) control element (CE) (MAC-CE), or downlink control information (DCI).

18. The apparatus of claim 11 , further comprising a transceiver coupled to the at least one processor,

wherein the plurality of UL repetitions is one of a plurality of physical uplink shared channel (PUSCH) repetitions or a plurality of physical uplink control channel (PUCCH) repetitions.

19. A method of wireless communication at a user equipment (UE), comprising:

scheduling a plurality of uplink (UL) repetitions including one or more nominal UL repetitions and one or more partial UL repetitions, each of the one or more partial UL repetitions being a subset of one nominal UL repetition of the one or more nominal UL repetitions, wherein a nominal UL repetition of the one or more nominal UL repetitions is segmented to include a first partial UL repetition, not including demodulation reference signal (DM-RS), of the one or more partial UL repetitions, and a second partial UL repetition, including the DM-RS, of the one or more partial UL repetitions; and

encoding the first partial UL repetition of the one or more partial UL repetitions using a sequence-based encoding based on a codebook, the first partial UL repetition not including demodulation reference signal (DM-RS).

20. The method of claim 19 , further comprising:

transmitting, to a base station, the plurality of UL repetitions including the first partial UL repetition encoded using the sequence-based encoding.

21. The method of claim 19 , further comprising:

deleting the DM-RS scheduled within the second partial UL repetition of the one or more partial UL repetitions; and

encoding the second partial UL repetition without the DM-RS using the sequence-based encoding based on the codebook.

22. The method of claim 19 , further comprising:

deleting the DM-RS scheduled within the second partial UL repetition of the one or more partial UL repetitions; and

combining the first partial UL repetition and the second partial UL repetition without the DM-RS, the combined first and second partial UL repetitions having a symbol length equal to a nominal UL repetition of the one or more nominal UL repetitions, and

wherein the encoding the first partial UL repetition further comprises: joint-encoding the combined first and second partial UL repetitions using the sequence-based encoding based on the codebook.

23. The method of claim 19 , further comprising:

encoding, using the sequence-based encoding based on the codebook, a plurality of resources of the second partial UL repetition not allocated with the DM-RS.

24. The method of claim 19 , further comprising:

combining the first partial UL repetition and a plurality of resources of the second partial UL repetition not allocated with the DM-RS, and

wherein the encoding the first partial UL repetition further comprises: joint-encoding, using the sequence-based encoding based on the codebook, a combined first partial UL repetition and the plurality of resources of the second partial UL repetition not allocated with the DM-RS.

25. The method of claim 19 , further comprising:

receiving, from a base station, a configuration including at least one of an indication of the codebook for the sequence-based encoding or an encoding scheme for the second partial UL repetition of the one or more partial UL repetitions including the DM-RS.

26. A method of wireless communication at a base station, comprising:

receiving, from a user equipment (UE), a plurality of uplink (UL) repetitions including one or more nominal UL repetitions and one or more partial UL repetitions, each of the one or more partial UL repetitions being a subset of one nominal UL repetition of the one or more nominal UL repetitions, wherein a nominal UL repetition of the one or more nominal UL repetitions is segmented to include a first partial UL repetition, not including demodulation reference signal (DM-RS), of the one or more partial UL repetitions, and a second partial UL repetition, including the DM-RS, of the one or more partial UL repetitions; and

decoding the first partial UL repetition of the one or more partial UL repetitions using a sequence-based decoding based on a codebook, the first partial UL repetition not including demodulation reference signal (DM-RS).

27. The method of claim 26 , further comprising:

combining the first partial UL repetition and the second partial UL repetition, the combined first and second partial UL repetitions having a symbol length equal to a nominal UL repetition of the one or more nominal UL repetitions, and

wherein the decoding the first partial UL repetition further comprises: joint-decoding the combined first and second partial UL repetitions using the sequence-based decoding based on the codebook.

28. The method of claim 26 , further comprising:

decoding, using the sequence-based decoding based on the codebook, a plurality of resources of the second partial UL repetition not allocated with the DM-RS.

29. The method of claim 26 , further comprising:

combining the first partial UL repetition and a plurality of resources of the second partial UL repetition not allocated with the DM-RS, and

wherein the decoding the first partial UL repetition further comprises: joint-decoding, using the sequence-based decoding based on the codebook, a combined first partial UL repetition and the plurality of resources of the second partial UL repetition not allocated with the DM-RS.

30. The method of claim 26 , further comprising:

transmitting, to the UE, a configuration including at least one of an indication of the codebook for a sequence-based encoding or an encoding scheme for the second partial UL repetition of the one or more partial UL repetitions including the DM-RS.