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

Patent metadata

Field	Value
Publication number	US-12028867-B2
Application number	US-202017420575-A
Country	US
Kind code	B2
Filing date	Jan 11, 2020
Priority date	Jan 11, 2019
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

Systems, apparatuses, methods, and computer-readable media are provided for a wireless communication on an unlicensed spectrum. An access point (AP) of the wireless communication system includes a processor circuitry, and radio front end circuitry coupled to the processor circuitry. The processor circuitry is configured to schedule multiple transmission time intervals (multi-TTIs) in a physical uplink shared channel (PUSCH) in the unlicensed spectrum. The processor circuitry is configured to generate a downlink control information (DCI) to include the scheduled multi-TTIs and a hybrid automatic repeat and request acknowledgement (HARQACK) assessment information associated with the scheduled multi-TTIs. The radio front end circuitry is configured to transmit the DCI to a user equipment (UE) over the unlicensed spectrum.

First claim

What is claimed is:

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.

Assignees

• Apple Inc

Inventors

• Li Yingyang
• Talarico Salvatore
• Kwak Yongjun
• Oviedo Jose Armando

Classifications

• H04L1/1887

  Scheduling and prioritising arrangements · CPC title

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04L1/1614 Primary

  using bitmaps · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title