Phase tracking reference signal transmission for physical uplink shared channel reliability enhancement
The present application relates to devices and components including apparatus, systems, and methods for physical uplink shared channel transmissions with repetitions on different transmit beams with phase tracking reference signals.
1. A method comprising:
processing downlink control information (DCI) to identify a first value in a first phase-tracking reference signal (PTRS)-demodulation reference signal (DMRS) association field and a second value in a second PTRS-DMRS association field;
determining, based on the first value, a first PTRS-DMRS association for a first sounding reference signal resource indicator (SRI) or precoding information;
determining, based on the second value, a second PTRS-DMRS association 9 for a second SRI or precoding information;
generating a first PUSCH repetition based on the first SRI or precoding information; and
generating a second PUSCH repetition based on the second SRI or precoding information.
2. The method of claim 1 , wherein the first PTRS-DMRS association is an association between a PTRS port and a DMRS port.
3. The method of claim 2 , further comprising:
generating a PTRS to be transmitted by the PTRS port with a precoder; and
generating a DMRS to be transmitted by the DMRS port with the precoder.
4. The method of claim 1 , wherein the DCI is to schedule a first physical uplink shared channel (PUSCH) repetition associated with the first SRI or precoding information and a second PUSCH repetition associated with the second SRI or precoding information.
5. The method of claim 1 , further comprising:
determining, based on radio resource control (RRC) signaling, an indicated maximum number of PTRS ports for transmissions associated with both the first SRI or precoding information and the second SRI or precoding information.
6. The method of claim 1 , further comprising:
determining a number of PTRS ports to be used for transmitting a PTRS associated with the first SRI or precoding information.
7. The method of claim 6 , wherein the PTRS is a first PTRS, the number is a first number, and the method further comprises:
determining a second number of PTRS ports to be used for transmitting a second PTRS associated with the second SRI or precoding information.
8. The method of claim 7 , further comprising:
determining the first or second number of PTRS ports is one port if an indicated maximum number is one or a codebook subset is not configured to be non-coherent or partial coherent.
9. The method of claim 7 , further comprising:
determining the first or second number of PTRS ports is two ports if an indicated maximum number is two, a codebook subset is configured to be non-coherent or partial coherent, and antenna ports to be used for transmissions associated with the first SRI or precoding information includes ports 1000 and 1002 or ports 1001 and 1003 .
10. One or more non-transitory, computer-readable media having instructions that, when executed, cause processing circuitry to:
process downlink control information (DCI) to identify a first value in a first phase-tracking reference signal (PTRS)-demodulation reference signal (DMRS) association field and a second value in a second PTRS-DMRS association field;
determine, based on the first value, a first PTRS-DMRS association for a first sounding reference signal resource indicator (SRI) or precoding information;
determine, based on the second value, a second PTRS-DMRS association for a second SRI or precoding information; and
generate a first PUSCH repetition based on the first SRI or precoding information; and
generate a second PUSCH repetition based on the second SRI or precoding information.
11. The one or more non-transitory, computer-readable media of claim 10 , wherein the first PTRS-DMRS association is an association between a PTRS port and a DMRS port.
12. The one or more non-transitory, computer-readable media of claim 11 , wherein the instructions, when executed, further cause the processing circuitry to:
generate a PTRS to be transmitted by the PTRS port with a precoder; and
generating a DMRS to be transmitted by the DMRS port with the precoder.
13. The one or more non-transitory, computer-readable media of claim 10 , wherein the DCI is to schedule a first physical uplink shared channel (PUSCH) repetition associated with the first SRI or precoding information and a second PUSCH repetition associated with the second SRI or precoding information.
14. The one or more non-transitory, computer-readable media of claim 10 , wherein the instructions, when executed, further cause the processing circuitry to:
determine, based on radio resource control (RRC) signaling, an indicated maximum number of PTRS ports for transmissions associated with both the first SRI or precoding information and the second SRI or precoding information.
15. The one or more non-transitory, computer-readable media of claim 10 , further wherein the instructions, when executed, further cause the processing circuitry to:
determine a number of PTRS ports to be used for transmitting a PTRS associated with the first SRI or precoding information.
16. The one or more non-transitory, computer-readable media of claim 15 , wherein the PTRS is a first PTRS, the number is a first number, and the instructions, when executed, further cause the processing circuitry to:
determine a second number of PTRS ports to be used for transmitting a second PTRS associated with the second SRI or precoding information.
17. An apparatus comprising:
processing circuitry to: generate downlink control information (DCI) to identify a first value in a first phase-tracking reference signal (PTRS)-demodulation reference signal (DMRS) association field and a second value in a second PTRS-DMRS association field, wherein the first value is to indicate a first PTRS-DMRS association for a first sounding reference signal resource indicator (SRI) or precoding information and the second value is to indicate a second PTRS-DMRS association for a second SRI or precoding information; and
interface circuitry coupled with the processing circuitry, the interface to communicatively couple the processing circuitry with a component of a device.
18. The apparatus of claim 17 , wherein the first PTRS-DMRS association is an association between a PTRS port and a DMRS port.
19. The apparatus of claim 17 , wherein the DCI is to schedule a first physical uplink shared channel (PUSCH) repetition associated with the first SRI or precoding information and a second PUSCH repetition associated with the second SRI or precoding information.
20. The apparatus of claim 17 , wherein the processing circuitry is further to:
generate radio resource control (RRC) signaling to indicate a maximum number of PTRS ports for transmissions associated with both the first SRI or precoding information and the second SRI or precoding information.