Multi-transmission time interval (TTI) scheduling for data transmission
Various embodiments herein are directed to multi-Transmission Time Interval (TTI) scheduling for data transmission for system operating above the 52.6 GHz carrier frequency. Other embodiments may be disclosed and/or claimed.
1. An apparatus comprising:
memory to store downlink control information (DCI); and
processor circuitry, coupled with the memory, to:
retrieve the DCI from the memory, wherein the DCI is to schedule a plurality of shared channels with different transport blocks (TB s) in different slots, wherein a plurality of fields within the DCI are common among the plurality of shared channels, wherein a carrier indicator and a bandwidth part (BWP) indicator indicated in the DCI are common for the plurality of shared channels, wherein the common carrier indicator is to indicate that a same component carrier (CC) is to be used for the plurality of shared channels, and wherein the common BWP indicator is to indicate that a same BWP is to be used for the plurality of shared channels; and
encode a physical downlink control channel (PDCCH) message that includes the DCI for transmission to a user equipment (UE).
2. The apparatus of claim 1 , wherein the plurality of shared channels include a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH).
3. The apparatus of claim 2 , wherein the DCI is to schedule four PDSCHs with different TBs, or the DCI is to schedule three PUSCHs with different TBs.
4. The apparatus of claim 1 , wherein respective shared channels of the plurality of shared channels are scheduled within a respective slot of a plurality of slots.
5. The apparatus of claim 1 , wherein:
a frequency domain resource allocation indicated in the DCI is common for the plurality of shared channels.
6. The apparatus of claim 1 , wherein:
a single transmission configuration indication (TCI) in the DCI is to be applied to transmission of the plurality of shared channels; or
a single sounding reference signal (SRS) resource indicator in the DCI is to be applied to the plurality of shared channels; or
the DCI includes an independent new data indicator (NDI) for each respective shared channel of the plurality of shared channels.
7. The apparatus of claim 1 , wherein the processor circuitry is further to generate a dynamic hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook for multiple transmit time interval (multi-TTI) scheduling for PDSCH transmissions with multiple transport blocks (TBs).
8. The apparatus of claim 7 , wherein the dynamic HARQ-ACK codebook includes two concatenated sub-codebooks, and wherein a first sub-codebook is to carry HARQ-ACK for TB-based PDSCH scheduling, and a second sub-codebook is for code block group (CBG) based PDSCH scheduling.
9. The apparatus of claim 8 , wherein the second sub-codebook includes HARQ-ACK bits for CBG-based PDSCH transmissions and PDSCH transmissions scheduled by a DCI scheduling multiple TTIs.
10. One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, are to cause a next-generation NodeB (gNB) to:
determine downlink control information (DCI) that is to schedule a plurality of shared channels with different transport blocks (TB s) in different slots, wherein the plurality of shared channels include a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH), wherein a plurality of fields within the DCI are common among the plurality of shared channels, wherein a carrier indicator and a bandwidth part (BWP) indicator indicated in the DCI are common for multiple shared channels, wherein the common carrier indicator is to indicate that a same component carrier (CC) is to be used for the plurality of shared channels, and wherein the common BWP indicator is to indicate that a same BWP is to be used for the plurality of shared channels; and
encode a physical downlink control channel (PDCCH) message that includes the DCI for transmission to a user equipment (UE).
11. The one or more non-transitory computer-readable media of claim 10 , wherein the DCI is to schedule four PDSCHs with different TBs, or the DCI is to schedule three PUSCHs with different TBs.
12. The one or more non-transitory computer-readable media of claim 10 , wherein respective shared channels of the plurality of shared channels are scheduled within a respective slot of a plurality of slots.
13. The one or more non-transitory computer-readable media of claim 10 , wherein:
a frequency domain resource allocation indicated in the DCI is common for the plurality of shared channels.
14. The one or more non-transitory computer-readable media of claim 10 , wherein:
a single transmission configuration indication (TCI) in the DCI is to be applied to transmission of the plurality of shared channels; or
a single sounding reference signal (SRS) resource indicator in the DCI is to be applied to the plurality of shared channels; or
the DCI includes an independent new data indicator (NDI) for respective shared channels of the plurality of shared channels.
15. The one or more non-transitory computer-readable media of claim 10 , wherein the one or more media further stores instructions to generate a dynamic hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook for multiple transmit time interval (multi-TTI) scheduling for PDSCH transmissions with multiple transport blocks (TBs).
16. The one or more non-transitory computer-readable media of claim 15 , wherein the dynamic HARQ-ACK codebook includes two concatenated sub-codebooks, and wherein a first sub-codebook is to carry HARQ-ACK for TB-based PDSCH scheduling, and a second sub-codebook is for code block group (CBG) based PDSCH scheduling.
17. The one or more non-transitory computer-readable media of claim 16 , wherein the second sub-codebook includes HARQ-ACK bits for CBG-based PDSCH transmissions and PDSCH transmissions scheduled by a DCI scheduling multiple TTIs.
18. One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, are to cause a user equipment (UE) to:
receive downlink control information (DCI) from a physical downlink control channel (PDCCH) message, the DCI to schedule a plurality of shared channels with different transport blocks (TB s) in different slots, wherein the plurality of shared channels include one or more physical uplink shared channels (PUSCHs), wherein a plurality of fields within the DCI are common among the plurality of shared channels, wherein a carrier indicator and a bandwidth part (BWP) indicator indicated in the DCI are common for the plurality of shared channels, wherein the common carrier indicator is to indicate that a same component carrier (CC) is to be used for the plurality of shared channels, and wherein the common BWP indicator is to indicate that a same BWP is to be used for the plurality of shared channels; and
encode one or more PUSCH messages for transmission based on the DCI.
19. The one or more non-transitory computer-readable media of claim 18 , wherein:
a frequency domain resource allocation indicated in the DCI is common for multiple the plurality of shared channels.
20. The one or more non-transitory computer-readable media of claim 18 , wherein:
a single transmission configuration indication (TCI) in the DCI is to be applied to transmission of the plurality of shared channels; or
a single sounding reference signal (SRS) resource indicator in the DCI is to be applied to the plurality of shared channels; or
the DCI includes an independent new data indicator (NDI) for respective shared channels of the plurality of shared channels.