Configured grant operations for multiple PUSCH
A user equipment (UE) is configured to receive from a base station a semi-persistent scheduling (SPS) configuration for physical downlink shared channel (PDSCH) transmissions wherein multiple PDSCHs are transmitted within a single period of the SPS, the SPS configuration including a parameter for a number of hybrid automatic repeat request (HARQ) processes associated with the SPS configuration, receive from the base station a downlink control information (DCI) transmission for activating the SPS configuration, the DCI including a HARQ process ID for one of the PDSCH transmissions in the SPS configuration, wherein the UE determines a maximum number of PDSCH transmissions allowed within the single period based on the parameter for the number of HARQ processes associated with the SPS configuration, validate the DCI to determine time domain resources to use for the PDSCH transmission and receive from the base station the multiple PDSCH transmissions within the single SPS period.
1. A processor of a user equipment (UE) configured to perform operations comprising:
receiving from a base station a semi-persistent scheduling (SPS) configuration for physical downlink shared channel (PDSCH) transmissions wherein multiple PDSCHs are transmitted within a single period of the SPS, the SPS configuration including a parameter for a number of hybrid automatic repeat request (HARQ) processes associated with the SPS configuration, wherein the SPS configuration includes a sequence of pdsch-AggregationFactor parameters, wherein each of the pdsch-AggregationFactor parameters corresponds to a different transport block (TB) in the single period of the SPS configuration;
receiving from the base station a downlink control information (DCI) transmission for activating the SPS configuration, the DCI including a HARQ process ID for one of the PDSCH transmissions in the SPS configuration, wherein the UE determines a maximum number of PDSCH transmissions allowed within the single period based on the parameter for the number of HARQ processes associated with the SPS configuration;
validating the DCI to determine time domain resources to use for the PDSCH transmission; and
receiving from the base station the multiple PDSCH transmissions within the single SPS period.
2. The processor of claim 1 , wherein a time domain resource allocation (TDRA) table used to determine the time domain resources for the PDSCH transmissions is adjusted so that each TDRA table entry has start and length indicator values (SLIVs) equal to the maximum number of PDSCH transmissions allowed within the single period.
3. The processor of claim 2 , wherein the SLIVs used for each TDRA table entry comprises (i) a first X number of SLIVs in the TDRA table entry or (ii) a last X number of SLIVs in the TDRA table entry.
4. The processor of claim 2 , wherein the SLIVs used for each TDRA table entry depends on a network configuration.
5. The processor of claim 1 , wherein the HARQ process ID for a first one of the PDSCH transmissions in a first period of the SPS configuration is determined based on a formula for calculating the HARQ process ID, wherein the formula is dependent on a slot index for the first PDSCH transmission.
6. The processor of claim 5 , wherein subsequent PDSCH transmissions within the first period are incremented by 1, independent of a slot index for the subsequent PDSCH transmissions, and subsequent PDSCH transmissions in subsequent periods of the SPS configuration continue to be incremented by 1, independent of a slot index for the subsequent PDSCH transmissions in the subsequent periods of the SPS configuration.
7. The processor of claim 5 , wherein a HARQ process ID for all of the PDSCH transmissions in the SPS configuration is calculated based on the formula.
8. The processor of claim 1 , wherein, in subsequent periods of the SPS configuration, a HARQ process ID for the PDSCH transmissions is determined according the HARQ process ID determination for the first period.
9. The processor of claim 1 , wherein a new data indicator (NDI) in the activation DCI is a single bit.
10. The processor of claim 1 , wherein a time domain resource allocation (TDRA) table used to determine the time domain resources for the PDSCH transmissions is included in the SPS configuration.
11. The processor of claim 1 , wherein the DCI is validated based on the HARQ process ID included in the DCI being equal to a smallest HARQ process ID configured in the SPS configuration.
12. The processor of claim 1 , wherein the DCI is validated based on the HARQ process ID included in the DCI being equal to a largest HARQ process ID configured in the SPS configuration.
13. The processor of claim 1 , wherein, when multiple SPS configurations are activated in the DCI, the DCI includes a time domain resource allocation (TDRA) table entry indicating which SPS configurations to activate jointly.
14. A processor of a user equipment (UE) configured to perform operations comprising:
receiving from a base station a configured grant (CG) configuration for physical uplink shared channel (PUSCH) transmissions wherein multiple PUSCHs are transmitted within a single period of the CG, the CG configuration including a parameter for a number of hybrid automatic repeat request (HARQ) processes associated with the CG configuration;
receiving from the base station a downlink control information (DCI) transmission for activating the CG configuration, the DCI including a HARQ process ID for one of the PUSCH transmissions in the CG configuration, wherein the UE determines a maximum number of PUSCH transmissions allowed within the single period based on the parameter for the number of HARQ processes associated with the CG configuration, wherein the HARQ process ID for a first one of the PUSCH transmissions in a first period of the CG configuration is determined based on a formula for calculating the HARQ process ID wherein subsequent PUSCH transmissions within the first period are incremented by 1, independent of a slot index for the subsequent PUSCH transmission;
validating the DCI to determine time domain resources to use for the PUSCH transmission; and
transmitting to the base station the multiple PUSCH transmissions within the single CG period.
15. The processor of claim 14 , wherein a time domain resource allocation (TDRA) table used to determine the time domain resources for the PUSCH transmissions is adjusted so that each TDRA table entry has start and length indicator values (SLIVs) equal to the maximum number of PUSCH transmissions allowed within the single period.
16. The processor of claim 15 , wherein the SLIVs used for each TDRA table entry comprises (i) a first X number of SLIVs in the TDRA table entry or (ii) a last X number of SLIVs in the TDRA table entry.
17. The processor of claim 15 , wherein the SLIVs used for each TDRA table entry depends on a network configuration.
18. The processor of claim 14 , wherein the operations further comprise:
receiving from the base station a further DCI for retransmissions of transport blocks (TBs) that were unsuccessfully decoded by the base station.