Grant based PUSCH transmission and configured grant based PUSCH transmission in NR systems operating on unlicensed spectrum

1. An Access Point (AP), the AP comprising:

processor circuitry configured to:

schedule multiple transmission time intervals (multi-TTIs) in a physical uplink shared channel (PUSCH) in an unlicensed spectrum; and

generate a downlink control information (DCI) to include the scheduled multi-TTIs and a hybrid automatic repeat and request acknowledgement (HARQ-ACK) assessment information associated with the scheduled multi-TTIs, wherein the DCI comprises a number of scheduled slots, and wherein the number of scheduled slots corresponds with a number of transport blocks for transmission in the PUSCH; and

radio front end circuitry, coupled to the processor circuitry, configured to:

transmit the DCI to a user equipment (UE) device over the unlicensed spectrum.

2. The AP of claim 1 , wherein the DCI further comprises code block group transmission information (CBGTI) bits per transport block (TB) for the multi-TTIs in the PUSCH.

3. The AP of claim 1 , wherein the DCI further comprises at least one bit that corresponds to a HARQ process identifier (ID) of a plurality of HARQ process IDs for code block group (CBG) based PUSCH transmission.

4. The AP of claim 1 , wherein the DCI further comprises at least one bit that corresponds to a HARQ process identifier (ID) of a subset of a plurality of HARQ process IDs for code block group (CBG) based PUSCH transmission.

5. The AP of claim 1 , wherein the DCI further comprises one bit that corresponds to a plurality of HARQ process identifiers (IDs) for non-code block group (CBG) based PUSCH transmission.

6. The AP of claim 1 , wherein the PUSCH is a grant based PUSCH (GB PUSCH) or a configured grant based PUSCH (CG PUSCH).

7. The AP of claim 1 , wherein a maximum of the number of scheduled slots is predefined or configured by radio resource control (RRC) signaling.

8. A method comprising:

scheduling, at an access point (AP), multiple transmission time intervals (multi-TTIs) in a physical uplink shared channel (PUSCH) in an unlicensed spectrum;

generating, at the AP, a downlink control information (DCI) to include the scheduled multi-TTIs and a hybrid automatic repeat request acknowledgement (HARQ-ACK) assessment information associated with the scheduled multi-TTIs, wherein the DCI comprises a number of scheduled slots, and wherein the number of scheduled slots corresponds with a number of transport blocks for transmission in the PUSCH; and

transmitting, from the AP to a user equipment (UE), the DCI over the unlicensed spectrum.

9. The method of claim 8 , wherein the DCI further comprises code block group transmission information (CBGTI) bits per transport block (TB) for the multi-TTIs in the PUSCH.

10. The method of claim 8 , wherein the DCI further comprises at least one bit that corresponds to a HARQ process identifier (ID) of a plurality of HARQ process IDs for code block group (CBG) based PUSCH transmission.

11. The method of claim 8 , wherein the DCI further comprises at least one bit that corresponds to a HARQ process identifier (ID) of a subset of a plurality of HARQ process IDs for code block group (CBG) based PUSCH transmission.

12. The method of claim 8 , wherein the DCI further comprises one bit that corresponds to a plurality of HARQ process identifiers (IDs) for non-code block group (CBG) based PUSCH transmission.

13. The method of claim 8 , wherein the PUSCH is a grant based PUSCH (GB PUSCH) or a configured grant based PUSCH (CG PUSCH).

14. The method of claim 8 , wherein a maximum of the number of scheduled slots is predefined or configured by radio resource control (RRC) signaling.

15. A non-transitory computer-readable media (CRM) comprising computer instructions, wherein execution of the computer instructions by one or more processors of an access point (AP), causes the one or more processors to:

schedule multiple transmission time intervals (multi-TTIs) in a physical uplink shared channel (PUSCH) in an unlicensed spectrum;

generate a downlink control information (DCI) to include the scheduled multi-TTIs and a hybrid automatic repeat request acknowledgement (HARQ-ACK) assessment information associated with the scheduled multi-TTIs, wherein the DCI comprises a number of scheduled slots, and wherein the number of scheduled slots corresponds with a number of transport blocks for transmission in the PUSCH; and

transmit the DCI to a user equipment (UE) device over the unlicensed spectrum.

16. The non-transitory CRM of claim 15 , wherein the DCI further comprises code block group transmission information (CBGTI) bits per transport block (TB) for the multi-TTIs in the PUSCH.

17. The non-transitory CRM of claim 15 , wherein the DCI further comprises at least one bit that corresponds to a HARQ process identifier (ID) of a plurality of HARQ process IDs for code block group (CBG) based PUSCH transmission or a HARQ process identifier (ID) of a subset of the plurality of the HARQ process IDs for the CBG based PUSCH transmission.

18. The non-transitory CRM of claim 15 , wherein the DCI further comprises one bit that corresponds to a plurality of HARQ process identifiers (IDs) for non-code block group (CBG) based PUSCH transmission.

19. The non-transitory CRM of claim 15 , wherein the PUSCH transmission is a grant based PUSCH (GB PUSCH) or a configured grant based PUSCH (CG PUSCH).

20. The non-transitory CRM of claim 15 , wherein a maximum of the number of scheduled slots is predefined or configured by radio resource control (RRC) signaling.